1 2 OpenSSL CHANGES 3 _______________ 4 5 This is a high-level summary of the most important changes. 6 For a full list of changes, see the git commit log; for example, 7 https://github.com/openssl/openssl/commits/ and pick the appropriate 8 release branch. 9 10 Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 11 12 *) Fixed segmentation fault in SSL_check_chain() 13 Server or client applications that call the SSL_check_chain() function 14 during or after a TLS 1.3 handshake may crash due to a NULL pointer 15 dereference as a result of incorrect handling of the 16 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 17 or unrecognised signature algorithm is received from the peer. This could 18 be exploited by a malicious peer in a Denial of Service attack. 19 (CVE-2020-1967) 20 [Benjamin Kaduk] 21 22 *) Added AES consttime code for no-asm configurations 23 an optional constant time support for AES was added 24 when building openssl for no-asm. 25 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 26 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 27 At this time this feature is by default disabled. 28 It will be enabled by default in 3.0. 29 [Bernd Edlinger] 30 31 Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 32 33 *) Revert the change of EOF detection while reading in libssl to avoid 34 regressions in applications depending on the current way of reporting 35 the EOF. As the existing method is not fully accurate the change to 36 reporting the EOF via SSL_ERROR_SSL is kept on the current development 37 branch and will be present in the 3.0 release. 38 [Tomas Mraz] 39 40 *) Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 41 when primes for RSA keys are computed. 42 Since we previously always generated primes == 2 (mod 3) for RSA keys, 43 the 2-prime and 3-prime RSA modules were easy to distinguish, since 44 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 45 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 46 This avoids possible fingerprinting of newly generated RSA modules. 47 [Bernd Edlinger] 48 49 Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 50 *) Properly detect EOF while reading in libssl. Previously if we hit an EOF 51 while reading in libssl then we would report an error back to the 52 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 53 an error to the stack (which means we instead return SSL_ERROR_SSL) and 54 therefore give a hint as to what went wrong. 55 [Matt Caswell] 56 57 *) Check that ed25519 and ed448 are allowed by the security level. Previously 58 signature algorithms not using an MD were not being checked that they were 59 allowed by the security level. 60 [Kurt Roeckx] 61 62 *) Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 63 was not quite right. The behaviour was not consistent between resumption 64 and normal handshakes, and also not quite consistent with historical 65 behaviour. The behaviour in various scenarios has been clarified and 66 it has been updated to make it match historical behaviour as closely as 67 possible. 68 [Matt Caswell] 69 70 *) [VMS only] The header files that the VMS compilers include automatically, 71 __DECC_INCLUDE_PROLOGUE.H and __DECC_INCLUDE_EPILOGUE.H, use pragmas that 72 the C++ compiler doesn't understand. This is a shortcoming in the 73 compiler, but can be worked around with __cplusplus guards. 74 75 C++ applications that use OpenSSL libraries must be compiled using the 76 qualifier '/NAMES=(AS_IS,SHORTENED)' to be able to use all the OpenSSL 77 functions. Otherwise, only functions with symbols of less than 31 78 characters can be used, as the linker will not be able to successfully 79 resolve symbols with longer names. 80 [Richard Levitte] 81 82 *) Corrected the documentation of the return values from the EVP_DigestSign* 83 set of functions. The documentation mentioned negative values for some 84 errors, but this was never the case, so the mention of negative values 85 was removed. 86 87 Code that followed the documentation and thereby check with something 88 like 'EVP_DigestSignInit(...) <= 0' will continue to work undisturbed. 89 [Richard Levitte] 90 91 *) Fixed an an overflow bug in the x64_64 Montgomery squaring procedure 92 used in exponentiation with 512-bit moduli. No EC algorithms are 93 affected. Analysis suggests that attacks against 2-prime RSA1024, 94 3-prime RSA1536, and DSA1024 as a result of this defect would be very 95 difficult to perform and are not believed likely. Attacks against DH512 96 are considered just feasible. However, for an attack the target would 97 have to re-use the DH512 private key, which is not recommended anyway. 98 Also applications directly using the low level API BN_mod_exp may be 99 affected if they use BN_FLG_CONSTTIME. 100 (CVE-2019-1551) 101 [Andy Polyakov] 102 103 *) Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 104 The presence of this system service is determined at run-time. 105 [Richard Levitte] 106 107 *) Added newline escaping functionality to a filename when using openssl dgst. 108 This output format is to replicate the output format found in the '*sum' 109 checksum programs. This aims to preserve backward compatibility. 110 [Matt Eaton, Richard Levitte, and Paul Dale] 111 112 *) Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 113 the first value. 114 [Jon Spillett] 115 116 Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 117 118 *) Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 119 number generator (RNG). This was intended to include protection in the 120 event of a fork() system call in order to ensure that the parent and child 121 processes did not share the same RNG state. However this protection was not 122 being used in the default case. 123 124 A partial mitigation for this issue is that the output from a high 125 precision timer is mixed into the RNG state so the likelihood of a parent 126 and child process sharing state is significantly reduced. 127 128 If an application already calls OPENSSL_init_crypto() explicitly using 129 OPENSSL_INIT_ATFORK then this problem does not occur at all. 130 (CVE-2019-1549) 131 [Matthias St. Pierre] 132 133 *) For built-in EC curves, ensure an EC_GROUP built from the curve name is 134 used even when parsing explicit parameters, when loading a serialized key 135 or calling `EC_GROUP_new_from_ecpkparameters()`/ 136 `EC_GROUP_new_from_ecparameters()`. 137 This prevents bypass of security hardening and performance gains, 138 especially for curves with specialized EC_METHODs. 139 By default, if a key encoded with explicit parameters is loaded and later 140 serialized, the output is still encoded with explicit parameters, even if 141 internally a "named" EC_GROUP is used for computation. 142 [Nicola Tuveri] 143 144 *) Compute ECC cofactors if not provided during EC_GROUP construction. Before 145 this change, EC_GROUP_set_generator would accept order and/or cofactor as 146 NULL. After this change, only the cofactor parameter can be NULL. It also 147 does some minimal sanity checks on the passed order. 148 (CVE-2019-1547) 149 [Billy Bob Brumley] 150 151 *) Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 152 An attack is simple, if the first CMS_recipientInfo is valid but the 153 second CMS_recipientInfo is chosen ciphertext. If the second 154 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 155 encryption key will be replaced by garbage, and the message cannot be 156 decoded, but if the RSA decryption fails, the correct encryption key is 157 used and the recipient will not notice the attack. 158 As a work around for this potential attack the length of the decrypted 159 key must be equal to the cipher default key length, in case the 160 certifiate is not given and all recipientInfo are tried out. 161 The old behaviour can be re-enabled in the CMS code by setting the 162 CMS_DEBUG_DECRYPT flag. 163 (CVE-2019-1563) 164 [Bernd Edlinger] 165 166 *) Early start up entropy quality from the DEVRANDOM seed source has been 167 improved for older Linux systems. The RAND subsystem will wait for 168 /dev/random to be producing output before seeding from /dev/urandom. 169 The seeded state is stored for future library initialisations using 170 a system global shared memory segment. The shared memory identifier 171 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 172 the desired value. The default identifier is 114. 173 [Paul Dale] 174 175 *) Correct the extended master secret constant on EBCDIC systems. Without this 176 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 177 negotiate EMS will fail. Unfortunately this also means that TLS connections 178 between EBCDIC systems with this fix, and EBCDIC systems without this 179 fix will fail if they negotiate EMS. 180 [Matt Caswell] 181 182 *) Use Windows installation paths in the mingw builds 183 184 Mingw isn't a POSIX environment per se, which means that Windows 185 paths should be used for installation. 186 (CVE-2019-1552) 187 [Richard Levitte] 188 189 *) Changed DH_check to accept parameters with order q and 2q subgroups. 190 With order 2q subgroups the bit 0 of the private key is not secret 191 but DH_generate_key works around that by clearing bit 0 of the 192 private key for those. This avoids leaking bit 0 of the private key. 193 [Bernd Edlinger] 194 195 *) Significantly reduce secure memory usage by the randomness pools. 196 [Paul Dale] 197 198 *) Revert the DEVRANDOM_WAIT feature for Linux systems 199 200 The DEVRANDOM_WAIT feature added a select() call to wait for the 201 /dev/random device to become readable before reading from the 202 /dev/urandom device. 203 204 It turned out that this change had negative side effects on 205 performance which were not acceptable. After some discussion it 206 was decided to revert this feature and leave it up to the OS 207 resp. the platform maintainer to ensure a proper initialization 208 during early boot time. 209 [Matthias St. Pierre] 210 211 Changes between 1.1.1b and 1.1.1c [28 May 2019] 212 213 *) Add build tests for C++. These are generated files that only do one 214 thing, to include one public OpenSSL head file each. This tests that 215 the public header files can be usefully included in a C++ application. 216 217 This test isn't enabled by default. It can be enabled with the option 218 'enable-buildtest-c++'. 219 [Richard Levitte] 220 221 *) Enable SHA3 pre-hashing for ECDSA and DSA. 222 [Patrick Steuer] 223 224 *) Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 225 This changes the size when using the genpkey app when no size is given. It 226 fixes an omission in earlier changes that changed all RSA, DSA and DH 227 generation apps to use 2048 bits by default. 228 [Kurt Roeckx] 229 230 *) Reorganize the manual pages to consistently have RETURN VALUES, 231 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 232 util/fix-doc-nits accordingly. 233 [Paul Yang, Joshua Lock] 234 235 *) Add the missing accessor EVP_PKEY_get0_engine() 236 [Matt Caswell] 237 238 *) Have apps like 's_client' and 's_server' output the signature scheme 239 along with other cipher suite parameters when debugging. 240 [Lorinczy Zsigmond] 241 242 *) Make OPENSSL_config() error agnostic again. 243 [Richard Levitte] 244 245 *) Do the error handling in RSA decryption constant time. 246 [Bernd Edlinger] 247 248 *) Prevent over long nonces in ChaCha20-Poly1305. 249 250 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 251 for every encryption operation. RFC 7539 specifies that the nonce value 252 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 253 and front pads the nonce with 0 bytes if it is less than 12 254 bytes. However it also incorrectly allows a nonce to be set of up to 16 255 bytes. In this case only the last 12 bytes are significant and any 256 additional leading bytes are ignored. 257 258 It is a requirement of using this cipher that nonce values are 259 unique. Messages encrypted using a reused nonce value are susceptible to 260 serious confidentiality and integrity attacks. If an application changes 261 the default nonce length to be longer than 12 bytes and then makes a 262 change to the leading bytes of the nonce expecting the new value to be a 263 new unique nonce then such an application could inadvertently encrypt 264 messages with a reused nonce. 265 266 Additionally the ignored bytes in a long nonce are not covered by the 267 integrity guarantee of this cipher. Any application that relies on the 268 integrity of these ignored leading bytes of a long nonce may be further 269 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 270 is safe because no such use sets such a long nonce value. However user 271 applications that use this cipher directly and set a non-default nonce 272 length to be longer than 12 bytes may be vulnerable. 273 274 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 275 Greef of Ronomon. 276 (CVE-2019-1543) 277 [Matt Caswell] 278 279 *) Add DEVRANDOM_WAIT feature for Linux systems 280 281 On older Linux systems where the getrandom() system call is not available, 282 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 283 Contrary to getrandom(), the /dev/urandom device will not block during 284 early boot when the kernel CSPRNG has not been seeded yet. 285 286 To mitigate this known weakness, use select() to wait for /dev/random to 287 become readable before reading from /dev/urandom. 288 289 *) Ensure that SM2 only uses SM3 as digest algorithm 290 [Paul Yang] 291 292 Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 293 294 *) Added SCA hardening for modular field inversion in EC_GROUP through 295 a new dedicated field_inv() pointer in EC_METHOD. 296 This also addresses a leakage affecting conversions from projective 297 to affine coordinates. 298 [Billy Bob Brumley, Nicola Tuveri] 299 300 *) Change the info callback signals for the start and end of a post-handshake 301 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 302 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 303 confused by this and assume that a TLSv1.2 renegotiation has started. This 304 can break KeyUpdate handling. Instead we no longer signal the start and end 305 of a post handshake message exchange (although the messages themselves are 306 still signalled). This could break some applications that were expecting 307 the old signals. However without this KeyUpdate is not usable for many 308 applications. 309 [Matt Caswell] 310 311 *) Fix a bug in the computation of the endpoint-pair shared secret used 312 by DTLS over SCTP. This breaks interoperability with older versions 313 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 314 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 315 interoperability with such broken implementations. However, enabling 316 this switch breaks interoperability with correct implementations. 317 318 *) Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 319 re-used X509_PUBKEY object if the second PUBKEY is malformed. 320 [Bernd Edlinger] 321 322 *) Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 323 [Richard Levitte] 324 325 *) Remove the 'dist' target and add a tarball building script. The 326 'dist' target has fallen out of use, and it shouldn't be 327 necessary to configure just to create a source distribution. 328 [Richard Levitte] 329 330 Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 331 332 *) Timing vulnerability in DSA signature generation 333 334 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 335 timing side channel attack. An attacker could use variations in the signing 336 algorithm to recover the private key. 337 338 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 339 (CVE-2018-0734) 340 [Paul Dale] 341 342 *) Timing vulnerability in ECDSA signature generation 343 344 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 345 timing side channel attack. An attacker could use variations in the signing 346 algorithm to recover the private key. 347 348 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 349 (CVE-2018-0735) 350 [Paul Dale] 351 352 *) Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 353 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 354 are retained for backwards compatibility. 355 [Antoine Salon] 356 357 *) Fixed the issue that RAND_add()/RAND_seed() silently discards random input 358 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 359 of two gigabytes and the error handling improved. 360 361 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 362 categorized as a normal bug, not a security issue, because the DRBG reseeds 363 automatically and is fully functional even without additional randomness 364 provided by the application. 365 366 Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 367 368 *) Add a new ClientHello callback. Provides a callback interface that gives 369 the application the ability to adjust the nascent SSL object at the 370 earliest stage of ClientHello processing, immediately after extensions have 371 been collected but before they have been processed. In particular, this 372 callback can adjust the supported TLS versions in response to the contents 373 of the ClientHello 374 [Benjamin Kaduk] 375 376 *) Add SM2 base algorithm support. 377 [Jack Lloyd] 378 379 *) s390x assembly pack: add (improved) hardware-support for the following 380 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 381 aes-cfb/cfb8, aes-ecb. 382 [Patrick Steuer] 383 384 *) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 385 parameter is no longer accepted, as it leads to a corrupt table. NULL 386 pem_str is reserved for alias entries only. 387 [Richard Levitte] 388 389 *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 390 step for prime curves. The new implementation is based on formulae from 391 differential addition-and-doubling in homogeneous projective coordinates 392 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 393 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 394 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 395 to work in projective coordinates. 396 [Billy Bob Brumley, Nicola Tuveri] 397 398 *) Change generating and checking of primes so that the error rate of not 399 being prime depends on the intended use based on the size of the input. 400 For larger primes this will result in more rounds of Miller-Rabin. 401 The maximal error rate for primes with more than 1080 bits is lowered 402 to 2^-128. 403 [Kurt Roeckx, Annie Yousar] 404 405 *) Increase the number of Miller-Rabin rounds for DSA key generating to 64. 406 [Kurt Roeckx] 407 408 *) The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 409 moving between systems, and to avoid confusion when a Windows build is 410 done with mingw vs with MSVC. For POSIX installs, there's still a 411 symlink or copy named 'tsget' to avoid that confusion as well. 412 [Richard Levitte] 413 414 *) Revert blinding in ECDSA sign and instead make problematic addition 415 length-invariant. Switch even to fixed-length Montgomery multiplication. 416 [Andy Polyakov] 417 418 *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 419 step for binary curves. The new implementation is based on formulae from 420 differential addition-and-doubling in mixed Lopez-Dahab projective 421 coordinates, modified to independently blind the operands. 422 [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri] 423 424 *) Add a scaffold to optionally enhance the Montgomery ladder implementation 425 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 426 EC_METHODs to implement their own specialized "ladder step", to take 427 advantage of more favorable coordinate systems or more efficient 428 differential addition-and-doubling algorithms. 429 [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri] 430 431 *) Modified the random device based seed sources to keep the relevant 432 file descriptors open rather than reopening them on each access. 433 This allows such sources to operate in a chroot() jail without 434 the associated device nodes being available. This behaviour can be 435 controlled using RAND_keep_random_devices_open(). 436 [Paul Dale] 437 438 *) Numerous side-channel attack mitigations have been applied. This may have 439 performance impacts for some algorithms for the benefit of improved 440 security. Specific changes are noted in this change log by their respective 441 authors. 442 [Matt Caswell] 443 444 *) AIX shared library support overhaul. Switch to AIX "natural" way of 445 handling shared libraries, which means collecting shared objects of 446 different versions and bitnesses in one common archive. This allows to 447 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 448 doesn't affect the way 3rd party applications are linked, only how 449 multi-version installation is managed. 450 [Andy Polyakov] 451 452 *) Make ec_group_do_inverse_ord() more robust and available to other 453 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 454 mitigations are applied to the fallback BN_mod_inverse(). 455 When using this function rather than BN_mod_inverse() directly, new 456 EC cryptosystem implementations are then safer-by-default. 457 [Billy Bob Brumley] 458 459 *) Add coordinate blinding for EC_POINT and implement projective 460 coordinate blinding for generic prime curves as a countermeasure to 461 chosen point SCA attacks. 462 [Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley] 463 464 *) Add blinding to ECDSA and DSA signatures to protect against side channel 465 attacks discovered by Keegan Ryan (NCC Group). 466 [Matt Caswell] 467 468 *) Enforce checking in the pkeyutl command line app to ensure that the input 469 length does not exceed the maximum supported digest length when performing 470 a sign, verify or verifyrecover operation. 471 [Matt Caswell] 472 473 *) SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 474 I/O in combination with something like select() or poll() will hang. This 475 can be turned off again using SSL_CTX_clear_mode(). 476 Many applications do not properly handle non-application data records, and 477 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 478 around the problems in those applications, but can also break some. 479 It's recommended to read the manpages about SSL_read(), SSL_write(), 480 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 481 SSL_CTX_set_read_ahead() again. 482 [Kurt Roeckx] 483 484 *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we 485 now allow empty (zero character) pass phrases. 486 [Richard Levitte] 487 488 *) Apply blinding to binary field modular inversion and remove patent 489 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 490 [Billy Bob Brumley] 491 492 *) Deprecate ec2_mult.c and unify scalar multiplication code paths for 493 binary and prime elliptic curves. 494 [Billy Bob Brumley] 495 496 *) Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 497 constant time fixed point multiplication. 498 [Billy Bob Brumley] 499 500 *) Revise elliptic curve scalar multiplication with timing attack 501 defenses: ec_wNAF_mul redirects to a constant time implementation 502 when computing fixed point and variable point multiplication (which 503 in OpenSSL are mostly used with secret scalars in keygen, sign, 504 ECDH derive operations). 505 [Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 506 Sohaib ul Hassan] 507 508 *) Updated CONTRIBUTING 509 [Rich Salz] 510 511 *) Updated DRBG / RAND to request nonce and additional low entropy 512 randomness from the system. 513 [Matthias St. Pierre] 514 515 *) Updated 'openssl rehash' to use OpenSSL consistent default. 516 [Richard Levitte] 517 518 *) Moved the load of the ssl_conf module to libcrypto, which helps 519 loading engines that libssl uses before libssl is initialised. 520 [Matt Caswell] 521 522 *) Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 523 [Matt Caswell] 524 525 *) Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 526 [Ingo Schwarze, Rich Salz] 527 528 *) Added output of accepting IP address and port for 'openssl s_server' 529 [Richard Levitte] 530 531 *) Added a new API for TLSv1.3 ciphersuites: 532 SSL_CTX_set_ciphersuites() 533 SSL_set_ciphersuites() 534 [Matt Caswell] 535 536 *) Memory allocation failures consistently add an error to the error 537 stack. 538 [Rich Salz] 539 540 *) Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 541 in libcrypto when run as setuid/setgid. 542 [Bernd Edlinger] 543 544 *) Load any config file by default when libssl is used. 545 [Matt Caswell] 546 547 *) Added new public header file <openssl/rand_drbg.h> and documentation 548 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 549 [Matthias St. Pierre] 550 551 *) QNX support removed (cannot find contributors to get their approval 552 for the license change). 553 [Rich Salz] 554 555 *) TLSv1.3 replay protection for early data has been implemented. See the 556 SSL_read_early_data() man page for further details. 557 [Matt Caswell] 558 559 *) Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 560 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 561 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 562 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 563 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 564 configuration has been separated out. See the ciphers man page or the 565 SSL_CTX_set_ciphersuites() man page for more information. 566 [Matt Caswell] 567 568 *) On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 569 in responder mode now supports the new "-multi" option, which 570 spawns the specified number of child processes to handle OCSP 571 requests. The "-timeout" option now also limits the OCSP 572 responder's patience to wait to receive the full client request 573 on a newly accepted connection. Child processes are respawned 574 as needed, and the CA index file is automatically reloaded 575 when changed. This makes it possible to run the "ocsp" responder 576 as a long-running service, making the OpenSSL CA somewhat more 577 feature-complete. In this mode, most diagnostic messages logged 578 after entering the event loop are logged via syslog(3) rather than 579 written to stderr. 580 [Viktor Dukhovni] 581 582 *) Added support for X448 and Ed448. Heavily based on original work by 583 Mike Hamburg. 584 [Matt Caswell] 585 586 *) Extend OSSL_STORE with capabilities to search and to narrow the set of 587 objects loaded. This adds the functions OSSL_STORE_expect() and 588 OSSL_STORE_find() as well as needed tools to construct searches and 589 get the search data out of them. 590 [Richard Levitte] 591 592 *) Support for TLSv1.3 added. Note that users upgrading from an earlier 593 version of OpenSSL should review their configuration settings to ensure 594 that they are still appropriate for TLSv1.3. For further information see: 595 https://wiki.openssl.org/index.php/TLS1.3 596 [Matt Caswell] 597 598 *) Grand redesign of the OpenSSL random generator 599 600 The default RAND method now utilizes an AES-CTR DRBG according to 601 NIST standard SP 800-90Ar1. The new random generator is essentially 602 a port of the default random generator from the OpenSSL FIPS 2.0 603 object module. It is a hybrid deterministic random bit generator 604 using an AES-CTR bit stream and which seeds and reseeds itself 605 automatically using trusted system entropy sources. 606 607 Some of its new features are: 608 o Support for multiple DRBG instances with seed chaining. 609 o The default RAND method makes use of a DRBG. 610 o There is a public and private DRBG instance. 611 o The DRBG instances are fork-safe. 612 o Keep all global DRBG instances on the secure heap if it is enabled. 613 o The public and private DRBG instance are per thread for lock free 614 operation 615 [Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre] 616 617 *) Changed Configure so it only says what it does and doesn't dump 618 so much data. Instead, ./configdata.pm should be used as a script 619 to display all sorts of configuration data. 620 [Richard Levitte] 621 622 *) Added processing of "make variables" to Configure. 623 [Richard Levitte] 624 625 *) Added SHA512/224 and SHA512/256 algorithm support. 626 [Paul Dale] 627 628 *) The last traces of Netware support, first removed in 1.1.0, have 629 now been removed. 630 [Rich Salz] 631 632 *) Get rid of Makefile.shared, and in the process, make the processing 633 of certain files (rc.obj, or the .def/.map/.opt files produced from 634 the ordinal files) more visible and hopefully easier to trace and 635 debug (or make silent). 636 [Richard Levitte] 637 638 *) Make it possible to have environment variable assignments as 639 arguments to config / Configure. 640 [Richard Levitte] 641 642 *) Add multi-prime RSA (RFC 8017) support. 643 [Paul Yang] 644 645 *) Add SM3 implemented according to GB/T 32905-2016 646 [ Jack Lloyd <jack.lloyd@ribose.com>, 647 Ronald Tse <ronald.tse@ribose.com>, 648 Erick Borsboom <erick.borsboom@ribose.com> ] 649 650 *) Add 'Maximum Fragment Length' TLS extension negotiation and support 651 as documented in RFC6066. 652 Based on a patch from Tomasz Moń 653 [Filipe Raimundo da Silva] 654 655 *) Add SM4 implemented according to GB/T 32907-2016. 656 [ Jack Lloyd <jack.lloyd@ribose.com>, 657 Ronald Tse <ronald.tse@ribose.com>, 658 Erick Borsboom <erick.borsboom@ribose.com> ] 659 660 *) Reimplement -newreq-nodes and ERR_error_string_n; the 661 original author does not agree with the license change. 662 [Rich Salz] 663 664 *) Add ARIA AEAD TLS support. 665 [Jon Spillett] 666 667 *) Some macro definitions to support VS6 have been removed. Visual 668 Studio 6 has not worked since 1.1.0 669 [Rich Salz] 670 671 *) Add ERR_clear_last_mark(), to allow callers to clear the last mark 672 without clearing the errors. 673 [Richard Levitte] 674 675 *) Add "atfork" functions. If building on a system that without 676 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 677 requirements. The RAND facility now uses/requires this. 678 [Rich Salz] 679 680 *) Add SHA3. 681 [Andy Polyakov] 682 683 *) The UI API becomes a permanent and integral part of libcrypto, i.e. 684 not possible to disable entirely. However, it's still possible to 685 disable the console reading UI method, UI_OpenSSL() (use UI_null() 686 as a fallback). 687 688 To disable, configure with 'no-ui-console'. 'no-ui' is still 689 possible to use as an alias. Check at compile time with the 690 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 691 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 692 [Richard Levitte] 693 694 *) Add a STORE module, which implements a uniform and URI based reader of 695 stores that can contain keys, certificates, CRLs and numerous other 696 objects. The main API is loosely based on a few stdio functions, 697 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 698 OSSL_STORE_error and OSSL_STORE_close. 699 The implementation uses backends called "loaders" to implement arbitrary 700 URI schemes. There is one built in "loader" for the 'file' scheme. 701 [Richard Levitte] 702 703 *) Add devcrypto engine. This has been implemented against cryptodev-linux, 704 then adjusted to work on FreeBSD 8.4 as well. 705 Enable by configuring with 'enable-devcryptoeng'. This is done by default 706 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 707 [Richard Levitte] 708 709 *) Module names can prefixed with OSSL_ or OPENSSL_. This affects 710 util/mkerr.pl, which is adapted to allow those prefixes, leading to 711 error code calls like this: 712 713 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 714 715 With this change, we claim the namespaces OSSL and OPENSSL in a manner 716 that can be encoded in C. For the foreseeable future, this will only 717 affect new modules. 718 [Richard Levitte and Tim Hudson] 719 720 *) Removed BSD cryptodev engine. 721 [Rich Salz] 722 723 *) Add a build target 'build_all_generated', to build all generated files 724 and only that. This can be used to prepare everything that requires 725 things like perl for a system that lacks perl and then move everything 726 to that system and do the rest of the build there. 727 [Richard Levitte] 728 729 *) In the UI interface, make it possible to duplicate the user data. This 730 can be used by engines that need to retain the data for a longer time 731 than just the call where this user data is passed. 732 [Richard Levitte] 733 734 *) Ignore the '-named_curve auto' value for compatibility of applications 735 with OpenSSL 1.0.2. 736 [Tomas Mraz <tmraz@fedoraproject.org>] 737 738 *) Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 739 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 740 alerts across multiple records (some of which could be empty). In practice 741 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 742 prohibits this altogether and other libraries (BoringSSL, NSS) do not 743 support this at all. Supporting it adds significant complexity to the 744 record layer, and its removal is unlikely to cause interoperability 745 issues. 746 [Matt Caswell] 747 748 *) Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 749 with Z. These are meant to replace LONG and ZLONG and to be size safe. 750 The use of LONG and ZLONG is discouraged and scheduled for deprecation 751 in OpenSSL 1.2.0. 752 [Richard Levitte] 753 754 *) Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 755 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 756 [Richard Levitte, Andy Polyakov] 757 758 *) Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 759 does for RSA, etc. 760 [Richard Levitte] 761 762 *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 763 platform rather than 'mingw'. 764 [Richard Levitte] 765 766 *) The functions X509_STORE_add_cert and X509_STORE_add_crl return 767 success if they are asked to add an object which already exists 768 in the store. This change cascades to other functions which load 769 certificates and CRLs. 770 [Paul Dale] 771 772 *) x86_64 assembly pack: annotate code with DWARF CFI directives to 773 facilitate stack unwinding even from assembly subroutines. 774 [Andy Polyakov] 775 776 *) Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 777 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 778 [Richard Levitte] 779 780 *) Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 781 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 782 which is the minimum version we support. 783 [Richard Levitte] 784 785 *) Certificate time validation (X509_cmp_time) enforces stricter 786 compliance with RFC 5280. Fractional seconds and timezone offsets 787 are no longer allowed. 788 [Emilia Käsper] 789 790 *) Add support for ARIA 791 [Paul Dale] 792 793 *) s_client will now send the Server Name Indication (SNI) extension by 794 default unless the new "-noservername" option is used. The server name is 795 based on the host provided to the "-connect" option unless overridden by 796 using "-servername". 797 [Matt Caswell] 798 799 *) Add support for SipHash 800 [Todd Short] 801 802 *) OpenSSL now fails if it receives an unrecognised record type in TLS1.0 803 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 804 prevent issues where no progress is being made and the peer continually 805 sends unrecognised record types, using up resources processing them. 806 [Matt Caswell] 807 808 *) 'openssl passwd' can now produce SHA256 and SHA512 based output, 809 using the algorithm defined in 810 https://www.akkadia.org/drepper/SHA-crypt.txt 811 [Richard Levitte] 812 813 *) Heartbeat support has been removed; the ABI is changed for now. 814 [Richard Levitte, Rich Salz] 815 816 *) Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 817 [Emilia Käsper] 818 819 *) The RSA "null" method, which was partially supported to avoid patent 820 issues, has been replaced to always returns NULL. 821 [Rich Salz] 822 823 824 Changes between 1.1.0h and 1.1.0i [xx XXX xxxx] 825 826 *) Client DoS due to large DH parameter 827 828 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 829 malicious server can send a very large prime value to the client. This will 830 cause the client to spend an unreasonably long period of time generating a 831 key for this prime resulting in a hang until the client has finished. This 832 could be exploited in a Denial Of Service attack. 833 834 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 835 (CVE-2018-0732) 836 [Guido Vranken] 837 838 *) Cache timing vulnerability in RSA Key Generation 839 840 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 841 a cache timing side channel attack. An attacker with sufficient access to 842 mount cache timing attacks during the RSA key generation process could 843 recover the private key. 844 845 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 846 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 847 (CVE-2018-0737) 848 [Billy Brumley] 849 850 *) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 851 parameter is no longer accepted, as it leads to a corrupt table. NULL 852 pem_str is reserved for alias entries only. 853 [Richard Levitte] 854 855 *) Revert blinding in ECDSA sign and instead make problematic addition 856 length-invariant. Switch even to fixed-length Montgomery multiplication. 857 [Andy Polyakov] 858 859 *) Change generating and checking of primes so that the error rate of not 860 being prime depends on the intended use based on the size of the input. 861 For larger primes this will result in more rounds of Miller-Rabin. 862 The maximal error rate for primes with more than 1080 bits is lowered 863 to 2^-128. 864 [Kurt Roeckx, Annie Yousar] 865 866 *) Increase the number of Miller-Rabin rounds for DSA key generating to 64. 867 [Kurt Roeckx] 868 869 *) Add blinding to ECDSA and DSA signatures to protect against side channel 870 attacks discovered by Keegan Ryan (NCC Group). 871 [Matt Caswell] 872 873 *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we 874 now allow empty (zero character) pass phrases. 875 [Richard Levitte] 876 877 *) Certificate time validation (X509_cmp_time) enforces stricter 878 compliance with RFC 5280. Fractional seconds and timezone offsets 879 are no longer allowed. 880 [Emilia Käsper] 881 882 *) Fixed a text canonicalisation bug in CMS 883 884 Where a CMS detached signature is used with text content the text goes 885 through a canonicalisation process first prior to signing or verifying a 886 signature. This process strips trailing space at the end of lines, converts 887 line terminators to CRLF and removes additional trailing line terminators 888 at the end of a file. A bug in the canonicalisation process meant that 889 some characters, such as form-feed, were incorrectly treated as whitespace 890 and removed. This is contrary to the specification (RFC5485). This fix 891 could mean that detached text data signed with an earlier version of 892 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 893 signed with a fixed OpenSSL may fail to verify with an earlier version of 894 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 895 and use the "-binary" flag (for the "cms" command line application) or set 896 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 897 [Matt Caswell] 898 899 Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 900 901 *) Constructed ASN.1 types with a recursive definition could exceed the stack 902 903 Constructed ASN.1 types with a recursive definition (such as can be found 904 in PKCS7) could eventually exceed the stack given malicious input with 905 excessive recursion. This could result in a Denial Of Service attack. There 906 are no such structures used within SSL/TLS that come from untrusted sources 907 so this is considered safe. 908 909 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 910 project. 911 (CVE-2018-0739) 912 [Matt Caswell] 913 914 *) Incorrect CRYPTO_memcmp on HP-UX PA-RISC 915 916 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 917 effectively reduced to only comparing the least significant bit of each 918 byte. This allows an attacker to forge messages that would be considered as 919 authenticated in an amount of tries lower than that guaranteed by the 920 security claims of the scheme. The module can only be compiled by the 921 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 922 923 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 924 (IBM). 925 (CVE-2018-0733) 926 [Andy Polyakov] 927 928 *) Add a build target 'build_all_generated', to build all generated files 929 and only that. This can be used to prepare everything that requires 930 things like perl for a system that lacks perl and then move everything 931 to that system and do the rest of the build there. 932 [Richard Levitte] 933 934 *) Backport SSL_OP_NO_RENGOTIATION 935 936 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 937 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 938 changes this is no longer possible in 1.1.0. Therefore the new 939 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 940 1.1.0 to provide equivalent functionality. 941 942 Note that if an application built against 1.1.0h headers (or above) is run 943 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 944 accepted but nothing will happen, i.e. renegotiation will not be prevented. 945 [Matt Caswell] 946 947 *) Removed the OS390-Unix config target. It relied on a script that doesn't 948 exist. 949 [Rich Salz] 950 951 *) rsaz_1024_mul_avx2 overflow bug on x86_64 952 953 There is an overflow bug in the AVX2 Montgomery multiplication procedure 954 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 955 Analysis suggests that attacks against RSA and DSA as a result of this 956 defect would be very difficult to perform and are not believed likely. 957 Attacks against DH1024 are considered just feasible, because most of the 958 work necessary to deduce information about a private key may be performed 959 offline. The amount of resources required for such an attack would be 960 significant. However, for an attack on TLS to be meaningful, the server 961 would have to share the DH1024 private key among multiple clients, which is 962 no longer an option since CVE-2016-0701. 963 964 This only affects processors that support the AVX2 but not ADX extensions 965 like Intel Haswell (4th generation). 966 967 This issue was reported to OpenSSL by David Benjamin (Google). The issue 968 was originally found via the OSS-Fuzz project. 969 (CVE-2017-3738) 970 [Andy Polyakov] 971 972 Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 973 974 *) bn_sqrx8x_internal carry bug on x86_64 975 976 There is a carry propagating bug in the x86_64 Montgomery squaring 977 procedure. No EC algorithms are affected. Analysis suggests that attacks 978 against RSA and DSA as a result of this defect would be very difficult to 979 perform and are not believed likely. Attacks against DH are considered just 980 feasible (although very difficult) because most of the work necessary to 981 deduce information about a private key may be performed offline. The amount 982 of resources required for such an attack would be very significant and 983 likely only accessible to a limited number of attackers. An attacker would 984 additionally need online access to an unpatched system using the target 985 private key in a scenario with persistent DH parameters and a private 986 key that is shared between multiple clients. 987 988 This only affects processors that support the BMI1, BMI2 and ADX extensions 989 like Intel Broadwell (5th generation) and later or AMD Ryzen. 990 991 This issue was reported to OpenSSL by the OSS-Fuzz project. 992 (CVE-2017-3736) 993 [Andy Polyakov] 994 995 *) Malformed X.509 IPAddressFamily could cause OOB read 996 997 If an X.509 certificate has a malformed IPAddressFamily extension, 998 OpenSSL could do a one-byte buffer overread. The most likely result 999 would be an erroneous display of the certificate in text format. 1000 1001 This issue was reported to OpenSSL by the OSS-Fuzz project. 1002 (CVE-2017-3735) 1003 [Rich Salz] 1004 1005 Changes between 1.1.0e and 1.1.0f [25 May 2017] 1006 1007 *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 1008 platform rather than 'mingw'. 1009 [Richard Levitte] 1010 1011 *) Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 1012 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 1013 which is the minimum version we support. 1014 [Richard Levitte] 1015 1016 Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 1017 1018 *) Encrypt-Then-Mac renegotiation crash 1019 1020 During a renegotiation handshake if the Encrypt-Then-Mac extension is 1021 negotiated where it was not in the original handshake (or vice-versa) then 1022 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 1023 and servers are affected. 1024 1025 This issue was reported to OpenSSL by Joe Orton (Red Hat). 1026 (CVE-2017-3733) 1027 [Matt Caswell] 1028 1029 Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 1030 1031 *) Truncated packet could crash via OOB read 1032 1033 If one side of an SSL/TLS path is running on a 32-bit host and a specific 1034 cipher is being used, then a truncated packet can cause that host to 1035 perform an out-of-bounds read, usually resulting in a crash. 1036 1037 This issue was reported to OpenSSL by Robert Święcki of Google. 1038 (CVE-2017-3731) 1039 [Andy Polyakov] 1040 1041 *) Bad (EC)DHE parameters cause a client crash 1042 1043 If a malicious server supplies bad parameters for a DHE or ECDHE key 1044 exchange then this can result in the client attempting to dereference a 1045 NULL pointer leading to a client crash. This could be exploited in a Denial 1046 of Service attack. 1047 1048 This issue was reported to OpenSSL by Guido Vranken. 1049 (CVE-2017-3730) 1050 [Matt Caswell] 1051 1052 *) BN_mod_exp may produce incorrect results on x86_64 1053 1054 There is a carry propagating bug in the x86_64 Montgomery squaring 1055 procedure. No EC algorithms are affected. Analysis suggests that attacks 1056 against RSA and DSA as a result of this defect would be very difficult to 1057 perform and are not believed likely. Attacks against DH are considered just 1058 feasible (although very difficult) because most of the work necessary to 1059 deduce information about a private key may be performed offline. The amount 1060 of resources required for such an attack would be very significant and 1061 likely only accessible to a limited number of attackers. An attacker would 1062 additionally need online access to an unpatched system using the target 1063 private key in a scenario with persistent DH parameters and a private 1064 key that is shared between multiple clients. For example this can occur by 1065 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 1066 similar to CVE-2015-3193 but must be treated as a separate problem. 1067 1068 This issue was reported to OpenSSL by the OSS-Fuzz project. 1069 (CVE-2017-3732) 1070 [Andy Polyakov] 1071 1072 Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 1073 1074 *) ChaCha20/Poly1305 heap-buffer-overflow 1075 1076 TLS connections using *-CHACHA20-POLY1305 ciphersuites are susceptible to 1077 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 1078 crash. This issue is not considered to be exploitable beyond a DoS. 1079 1080 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 1081 (CVE-2016-7054) 1082 [Richard Levitte] 1083 1084 *) CMS Null dereference 1085 1086 Applications parsing invalid CMS structures can crash with a NULL pointer 1087 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 1088 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 1089 structure callback if an attempt is made to free certain invalid encodings. 1090 Only CHOICE structures using a callback which do not handle NULL value are 1091 affected. 1092 1093 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 1094 (CVE-2016-7053) 1095 [Stephen Henson] 1096 1097 *) Montgomery multiplication may produce incorrect results 1098 1099 There is a carry propagating bug in the Broadwell-specific Montgomery 1100 multiplication procedure that handles input lengths divisible by, but 1101 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 1102 and DH private keys are impossible. This is because the subroutine in 1103 question is not used in operations with the private key itself and an input 1104 of the attacker's direct choice. Otherwise the bug can manifest itself as 1105 transient authentication and key negotiation failures or reproducible 1106 erroneous outcome of public-key operations with specially crafted input. 1107 Among EC algorithms only Brainpool P-512 curves are affected and one 1108 presumably can attack ECDH key negotiation. Impact was not analyzed in 1109 detail, because pre-requisites for attack are considered unlikely. Namely 1110 multiple clients have to choose the curve in question and the server has to 1111 share the private key among them, neither of which is default behaviour. 1112 Even then only clients that chose the curve will be affected. 1113 1114 This issue was publicly reported as transient failures and was not 1115 initially recognized as a security issue. Thanks to Richard Morgan for 1116 providing reproducible case. 1117 (CVE-2016-7055) 1118 [Andy Polyakov] 1119 1120 *) Removed automatic addition of RPATH in shared libraries and executables, 1121 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 1122 [Richard Levitte] 1123 1124 Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 1125 1126 *) Fix Use After Free for large message sizes 1127 1128 The patch applied to address CVE-2016-6307 resulted in an issue where if a 1129 message larger than approx 16k is received then the underlying buffer to 1130 store the incoming message is reallocated and moved. Unfortunately a 1131 dangling pointer to the old location is left which results in an attempt to 1132 write to the previously freed location. This is likely to result in a 1133 crash, however it could potentially lead to execution of arbitrary code. 1134 1135 This issue only affects OpenSSL 1.1.0a. 1136 1137 This issue was reported to OpenSSL by Robert Święcki. 1138 (CVE-2016-6309) 1139 [Matt Caswell] 1140 1141 Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 1142 1143 *) OCSP Status Request extension unbounded memory growth 1144 1145 A malicious client can send an excessively large OCSP Status Request 1146 extension. If that client continually requests renegotiation, sending a 1147 large OCSP Status Request extension each time, then there will be unbounded 1148 memory growth on the server. This will eventually lead to a Denial Of 1149 Service attack through memory exhaustion. Servers with a default 1150 configuration are vulnerable even if they do not support OCSP. Builds using 1151 the "no-ocsp" build time option are not affected. 1152 1153 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 1154 (CVE-2016-6304) 1155 [Matt Caswell] 1156 1157 *) SSL_peek() hang on empty record 1158 1159 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 1160 sends an empty record. This could be exploited by a malicious peer in a 1161 Denial Of Service attack. 1162 1163 This issue was reported to OpenSSL by Alex Gaynor. 1164 (CVE-2016-6305) 1165 [Matt Caswell] 1166 1167 *) Excessive allocation of memory in tls_get_message_header() and 1168 dtls1_preprocess_fragment() 1169 1170 A (D)TLS message includes 3 bytes for its length in the header for the 1171 message. This would allow for messages up to 16Mb in length. Messages of 1172 this length are excessive and OpenSSL includes a check to ensure that a 1173 peer is sending reasonably sized messages in order to avoid too much memory 1174 being consumed to service a connection. A flaw in the logic of version 1175 1.1.0 means that memory for the message is allocated too early, prior to 1176 the excessive message length check. Due to way memory is allocated in 1177 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 1178 to service a connection. This could lead to a Denial of Service through 1179 memory exhaustion. However, the excessive message length check still takes 1180 place, and this would cause the connection to immediately fail. Assuming 1181 that the application calls SSL_free() on the failed connection in a timely 1182 manner then the 21Mb of allocated memory will then be immediately freed 1183 again. Therefore the excessive memory allocation will be transitory in 1184 nature. This then means that there is only a security impact if: 1185 1186 1) The application does not call SSL_free() in a timely manner in the event 1187 that the connection fails 1188 or 1189 2) The application is working in a constrained environment where there is 1190 very little free memory 1191 or 1192 3) The attacker initiates multiple connection attempts such that there are 1193 multiple connections in a state where memory has been allocated for the 1194 connection; SSL_free() has not yet been called; and there is insufficient 1195 memory to service the multiple requests. 1196 1197 Except in the instance of (1) above any Denial Of Service is likely to be 1198 transitory because as soon as the connection fails the memory is 1199 subsequently freed again in the SSL_free() call. However there is an 1200 increased risk during this period of application crashes due to the lack of 1201 memory - which would then mean a more serious Denial of Service. 1202 1203 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 1204 (CVE-2016-6307 and CVE-2016-6308) 1205 [Matt Caswell] 1206 1207 *) solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 1208 had to be removed. Primary reason is that vendor assembler can't 1209 assemble our modules with -KPIC flag. As result it, assembly 1210 support, was not even available as option. But its lack means 1211 lack of side-channel resistant code, which is incompatible with 1212 security by todays standards. Fortunately gcc is readily available 1213 prepackaged option, which we firmly point at... 1214 [Andy Polyakov] 1215 1216 Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 1217 1218 *) Windows command-line tool supports UTF-8 opt-in option for arguments 1219 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 1220 (to any value) allows Windows user to access PKCS#12 file generated 1221 with Windows CryptoAPI and protected with non-ASCII password, as well 1222 as files generated under UTF-8 locale on Linux also protected with 1223 non-ASCII password. 1224 [Andy Polyakov] 1225 1226 *) To mitigate the SWEET32 attack (CVE-2016-2183), 3DES cipher suites 1227 have been disabled by default and removed from DEFAULT, just like RC4. 1228 See the RC4 item below to re-enable both. 1229 [Rich Salz] 1230 1231 *) The method for finding the storage location for the Windows RAND seed file 1232 has changed. First we check %RANDFILE%. If that is not set then we check 1233 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 1234 all else fails we fall back to C:\. 1235 [Matt Caswell] 1236 1237 *) The EVP_EncryptUpdate() function has had its return type changed from void 1238 to int. A return of 0 indicates and error while a return of 1 indicates 1239 success. 1240 [Matt Caswell] 1241 1242 *) The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 1243 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 1244 off the constant time implementation for RSA, DSA and DH have been made 1245 no-ops and deprecated. 1246 [Matt Caswell] 1247 1248 *) Windows RAND implementation was simplified to only get entropy by 1249 calling CryptGenRandom(). Various other RAND-related tickets 1250 were also closed. 1251 [Joseph Wylie Yandle, Rich Salz] 1252 1253 *) The stack and lhash API's were renamed to start with OPENSSL_SK_ 1254 and OPENSSL_LH_, respectively. The old names are available 1255 with API compatibility. They new names are now completely documented. 1256 [Rich Salz] 1257 1258 *) Unify TYPE_up_ref(obj) methods signature. 1259 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 1260 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 1261 int (instead of void) like all others TYPE_up_ref() methods. 1262 So now these methods also check the return value of CRYPTO_atomic_add(), 1263 and the validity of object reference counter. 1264 [fdasilvayy@gmail.com] 1265 1266 *) With Windows Visual Studio builds, the .pdb files are installed 1267 alongside the installed libraries and executables. For a static 1268 library installation, ossl_static.pdb is the associate compiler 1269 generated .pdb file to be used when linking programs. 1270 [Richard Levitte] 1271 1272 *) Remove openssl.spec. Packaging files belong with the packagers. 1273 [Richard Levitte] 1274 1275 *) Automatic Darwin/OSX configuration has had a refresh, it will now 1276 recognise x86_64 architectures automatically. You can still decide 1277 to build for a different bitness with the environment variable 1278 KERNEL_BITS (can be 32 or 64), for example: 1279 1280 KERNEL_BITS=32 ./config 1281 1282 [Richard Levitte] 1283 1284 *) Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 1285 256 bit AES and HMAC with SHA256. 1286 [Steve Henson] 1287 1288 *) Remove support for MIPS o32 ABI on IRIX (and IRIX only). 1289 [Andy Polyakov] 1290 1291 *) Triple-DES ciphers have been moved from HIGH to MEDIUM. 1292 [Rich Salz] 1293 1294 *) To enable users to have their own config files and build file templates, 1295 Configure looks in the directory indicated by the environment variable 1296 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 1297 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 1298 name and is used as is. 1299 [Richard Levitte] 1300 1301 *) The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 1302 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 1303 X509_CERT_FILE_CTX was removed. 1304 [Rich Salz] 1305 1306 *) "shared" builds are now the default. To create only static libraries use 1307 the "no-shared" Configure option. 1308 [Matt Caswell] 1309 1310 *) Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 1311 All of these option have not worked for some while and are fundamental 1312 algorithms. 1313 [Matt Caswell] 1314 1315 *) Make various cleanup routines no-ops and mark them as deprecated. Most 1316 global cleanup functions are no longer required because they are handled 1317 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 1318 Explicitly de-initing can cause problems (e.g. where a library that uses 1319 OpenSSL de-inits, but an application is still using it). The affected 1320 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 1321 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 1322 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 1323 COMP_zlib_cleanup(). 1324 [Matt Caswell] 1325 1326 *) --strict-warnings no longer enables runtime debugging options 1327 such as REF_DEBUG. Instead, debug options are automatically 1328 enabled with '--debug' builds. 1329 [Andy Polyakov, Emilia Käsper] 1330 1331 *) Made DH and DH_METHOD opaque. The structures for managing DH objects 1332 have been moved out of the public header files. New functions for managing 1333 these have been added. 1334 [Matt Caswell] 1335 1336 *) Made RSA and RSA_METHOD opaque. The structures for managing RSA 1337 objects have been moved out of the public header files. New 1338 functions for managing these have been added. 1339 [Richard Levitte] 1340 1341 *) Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 1342 have been moved out of the public header files. New functions for managing 1343 these have been added. 1344 [Matt Caswell] 1345 1346 *) Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 1347 moved out of the public header files. New functions for managing these 1348 have been added. 1349 [Matt Caswell] 1350 1351 *) Removed no-rijndael as a config option. Rijndael is an old name for AES. 1352 [Matt Caswell] 1353 1354 *) Removed the mk1mf build scripts. 1355 [Richard Levitte] 1356 1357 *) Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 1358 it is always safe to #include a header now. 1359 [Rich Salz] 1360 1361 *) Removed the aged BC-32 config and all its supporting scripts 1362 [Richard Levitte] 1363 1364 *) Removed support for Ultrix, Netware, and OS/2. 1365 [Rich Salz] 1366 1367 *) Add support for HKDF. 1368 [Alessandro Ghedini] 1369 1370 *) Add support for blake2b and blake2s 1371 [Bill Cox] 1372 1373 *) Added support for "pipelining". Ciphers that have the 1374 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 1375 encryptions/decryptions simultaneously. There are currently no built-in 1376 ciphers with this property but the expectation is that engines will be able 1377 to offer it to significantly improve throughput. Support has been extended 1378 into libssl so that multiple records for a single connection can be 1379 processed in one go (for >=TLS 1.1). 1380 [Matt Caswell] 1381 1382 *) Added the AFALG engine. This is an async capable engine which is able to 1383 offload work to the Linux kernel. In this initial version it only supports 1384 AES128-CBC. The kernel must be version 4.1.0 or greater. 1385 [Catriona Lucey] 1386 1387 *) OpenSSL now uses a new threading API. It is no longer necessary to 1388 set locking callbacks to use OpenSSL in a multi-threaded environment. There 1389 are two supported threading models: pthreads and windows threads. It is 1390 also possible to configure OpenSSL at compile time for "no-threads". The 1391 old threading API should no longer be used. The functions have been 1392 replaced with "no-op" compatibility macros. 1393 [Alessandro Ghedini, Matt Caswell] 1394 1395 *) Modify behavior of ALPN to invoke callback after SNI/servername 1396 callback, such that updates to the SSL_CTX affect ALPN. 1397 [Todd Short] 1398 1399 *) Add SSL_CIPHER queries for authentication and key-exchange. 1400 [Todd Short] 1401 1402 *) Changes to the DEFAULT cipherlist: 1403 - Prefer (EC)DHE handshakes over plain RSA. 1404 - Prefer AEAD ciphers over legacy ciphers. 1405 - Prefer ECDSA over RSA when both certificates are available. 1406 - Prefer TLSv1.2 ciphers/PRF. 1407 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 1408 default cipherlist. 1409 [Emilia Käsper] 1410 1411 *) Change the ECC default curve list to be this, in order: x25519, 1412 secp256r1, secp521r1, secp384r1. 1413 [Rich Salz] 1414 1415 *) RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 1416 disabled by default. They can be re-enabled using the 1417 enable-weak-ssl-ciphers option to Configure. 1418 [Matt Caswell] 1419 1420 *) If the server has ALPN configured, but supports no protocols that the 1421 client advertises, send a fatal "no_application_protocol" alert. 1422 This behaviour is SHALL in RFC 7301, though it isn't universally 1423 implemented by other servers. 1424 [Emilia Käsper] 1425 1426 *) Add X25519 support. 1427 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 1428 for public and private key encoding using the format documented in 1429 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 1430 key generation and key derivation. 1431 1432 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 1433 X25519(29). 1434 [Steve Henson] 1435 1436 *) Deprecate SRP_VBASE_get_by_user. 1437 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 1438 In order to fix an unavoidable memory leak (CVE-2016-0798), 1439 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 1440 seed, even if the seed is configured. 1441 1442 Users should use SRP_VBASE_get1_by_user instead. Note that in 1443 SRP_VBASE_get1_by_user, caller must free the returned value. Note 1444 also that even though configuring the SRP seed attempts to hide 1445 invalid usernames by continuing the handshake with fake 1446 credentials, this behaviour is not constant time and no strong 1447 guarantees are made that the handshake is indistinguishable from 1448 that of a valid user. 1449 [Emilia Käsper] 1450 1451 *) Configuration change; it's now possible to build dynamic engines 1452 without having to build shared libraries and vice versa. This 1453 only applies to the engines in engines/, those in crypto/engine/ 1454 will always be built into libcrypto (i.e. "static"). 1455 1456 Building dynamic engines is enabled by default; to disable, use 1457 the configuration option "disable-dynamic-engine". 1458 1459 The only requirements for building dynamic engines are the 1460 presence of the DSO module and building with position independent 1461 code, so they will also automatically be disabled if configuring 1462 with "disable-dso" or "disable-pic". 1463 1464 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 1465 are also taken away from openssl/opensslconf.h, as they are 1466 irrelevant. 1467 [Richard Levitte] 1468 1469 *) Configuration change; if there is a known flag to compile 1470 position independent code, it will always be applied on the 1471 libcrypto and libssl object files, and never on the application 1472 object files. This means other libraries that use routines from 1473 libcrypto / libssl can be made into shared libraries regardless 1474 of how OpenSSL was configured. 1475 1476 If this isn't desirable, the configuration options "disable-pic" 1477 or "no-pic" can be used to disable the use of PIC. This will 1478 also disable building shared libraries and dynamic engines. 1479 [Richard Levitte] 1480 1481 *) Removed JPAKE code. It was experimental and has no wide use. 1482 [Rich Salz] 1483 1484 *) The INSTALL_PREFIX Makefile variable has been renamed to 1485 DESTDIR. That makes for less confusion on what this variable 1486 is for. Also, the configuration option --install_prefix is 1487 removed. 1488 [Richard Levitte] 1489 1490 *) Heartbeat for TLS has been removed and is disabled by default 1491 for DTLS; configure with enable-heartbeats. Code that uses the 1492 old #define's might need to be updated. 1493 [Emilia Käsper, Rich Salz] 1494 1495 *) Rename REF_CHECK to REF_DEBUG. 1496 [Rich Salz] 1497 1498 *) New "unified" build system 1499 1500 The "unified" build system is aimed to be a common system for all 1501 platforms we support. With it comes new support for VMS. 1502 1503 This system builds supports building in a different directory tree 1504 than the source tree. It produces one Makefile (for unix family 1505 or lookalikes), or one descrip.mms (for VMS). 1506 1507 The source of information to make the Makefile / descrip.mms is 1508 small files called 'build.info', holding the necessary 1509 information for each directory with source to compile, and a 1510 template in Configurations, like unix-Makefile.tmpl or 1511 descrip.mms.tmpl. 1512 1513 With this change, the library names were also renamed on Windows 1514 and on VMS. They now have names that are closer to the standard 1515 on Unix, and include the major version number, and in certain 1516 cases, the architecture they are built for. See "Notes on shared 1517 libraries" in INSTALL. 1518 1519 We rely heavily on the perl module Text::Template. 1520 [Richard Levitte] 1521 1522 *) Added support for auto-initialisation and de-initialisation of the library. 1523 OpenSSL no longer requires explicit init or deinit routines to be called, 1524 except in certain circumstances. See the OPENSSL_init_crypto() and 1525 OPENSSL_init_ssl() man pages for further information. 1526 [Matt Caswell] 1527 1528 *) The arguments to the DTLSv1_listen function have changed. Specifically the 1529 "peer" argument is now expected to be a BIO_ADDR object. 1530 1531 *) Rewrite of BIO networking library. The BIO library lacked consistent 1532 support of IPv6, and adding it required some more extensive 1533 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 1534 which hold all types of addresses and chains of address information. 1535 It also introduces a new API, with functions like BIO_socket, 1536 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 1537 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 1538 have been adapted accordingly. 1539 [Richard Levitte] 1540 1541 *) RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 1542 the leading 0-byte. 1543 [Emilia Käsper] 1544 1545 *) CRIME protection: disable compression by default, even if OpenSSL is 1546 compiled with zlib enabled. Applications can still enable compression 1547 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 1548 using the SSL_CONF library to configure compression. 1549 [Emilia Käsper] 1550 1551 *) The signature of the session callback configured with 1552 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 1553 was explicitly marked as 'const unsigned char*' instead of 1554 'unsigned char*'. 1555 [Emilia Käsper] 1556 1557 *) Always DPURIFY. Remove the use of uninitialized memory in the 1558 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 1559 [Emilia Käsper] 1560 1561 *) Removed many obsolete configuration items, including 1562 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 1563 MD2_CHAR, MD2_INT, MD2_LONG 1564 BF_PTR, BF_PTR2 1565 IDEA_SHORT, IDEA_LONG 1566 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 1567 [Rich Salz, with advice from Andy Polyakov] 1568 1569 *) Many BN internals have been moved to an internal header file. 1570 [Rich Salz with help from Andy Polyakov] 1571 1572 *) Configuration and writing out the results from it has changed. 1573 Files such as Makefile include/openssl/opensslconf.h and are now 1574 produced through general templates, such as Makefile.in and 1575 crypto/opensslconf.h.in and some help from the perl module 1576 Text::Template. 1577 1578 Also, the center of configuration information is no longer 1579 Makefile. Instead, Configure produces a perl module in 1580 configdata.pm which holds most of the config data (in the hash 1581 table %config), the target data that comes from the target 1582 configuration in one of the Configurations/*.conf files (in 1583 %target). 1584 [Richard Levitte] 1585 1586 *) To clarify their intended purposes, the Configure options 1587 --prefix and --openssldir change their semantics, and become more 1588 straightforward and less interdependent. 1589 1590 --prefix shall be used exclusively to give the location INSTALLTOP 1591 where programs, scripts, libraries, include files and manuals are 1592 going to be installed. The default is now /usr/local. 1593 1594 --openssldir shall be used exclusively to give the default 1595 location OPENSSLDIR where certificates, private keys, CRLs are 1596 managed. This is also where the default openssl.cnf gets 1597 installed. 1598 If the directory given with this option is a relative path, the 1599 values of both the --prefix value and the --openssldir value will 1600 be combined to become OPENSSLDIR. 1601 The default for --openssldir is INSTALLTOP/ssl. 1602 1603 Anyone who uses --openssldir to specify where OpenSSL is to be 1604 installed MUST change to use --prefix instead. 1605 [Richard Levitte] 1606 1607 *) The GOST engine was out of date and therefore it has been removed. An up 1608 to date GOST engine is now being maintained in an external repository. 1609 See: https://wiki.openssl.org/index.php/Binaries. Libssl still retains 1610 support for GOST ciphersuites (these are only activated if a GOST engine 1611 is present). 1612 [Matt Caswell] 1613 1614 *) EGD is no longer supported by default; use enable-egd when 1615 configuring. 1616 [Ben Kaduk and Rich Salz] 1617 1618 *) The distribution now has Makefile.in files, which are used to 1619 create Makefile's when Configure is run. *Configure must be run 1620 before trying to build now.* 1621 [Rich Salz] 1622 1623 *) The return value for SSL_CIPHER_description() for error conditions 1624 has changed. 1625 [Rich Salz] 1626 1627 *) Support for RFC6698/RFC7671 DANE TLSA peer authentication. 1628 1629 Obtaining and performing DNSSEC validation of TLSA records is 1630 the application's responsibility. The application provides 1631 the TLSA records of its choice to OpenSSL, and these are then 1632 used to authenticate the peer. 1633 1634 The TLSA records need not even come from DNS. They can, for 1635 example, be used to implement local end-entity certificate or 1636 trust-anchor "pinning", where the "pin" data takes the form 1637 of TLSA records, which can augment or replace verification 1638 based on the usual WebPKI public certification authorities. 1639 [Viktor Dukhovni] 1640 1641 *) Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 1642 continues to support deprecated interfaces in default builds. 1643 However, applications are strongly advised to compile their 1644 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 1645 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 1646 or the 1.1.0 releases. 1647 1648 In environments in which all applications have been ported to 1649 not use any deprecated interfaces OpenSSL's Configure script 1650 should be used with the --api=1.1.0 option to entirely remove 1651 support for the deprecated features from the library and 1652 unconditionally disable them in the installed headers. 1653 Essentially the same effect can be achieved with the "no-deprecated" 1654 argument to Configure, except that this will always restrict 1655 the build to just the latest API, rather than a fixed API 1656 version. 1657 1658 As applications are ported to future revisions of the API, 1659 they should update their compile-time OPENSSL_API_COMPAT define 1660 accordingly, but in most cases should be able to continue to 1661 compile with later releases. 1662 1663 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 1664 0x10000000L and 0x00908000L, respectively. However those 1665 versions did not support the OPENSSL_API_COMPAT feature, and 1666 so applications are not typically tested for explicit support 1667 of just the undeprecated features of either release. 1668 [Viktor Dukhovni] 1669 1670 *) Add support for setting the minimum and maximum supported protocol. 1671 It can bet set via the SSL_set_min_proto_version() and 1672 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 1673 MaxProtocol. It's recommended to use the new APIs to disable 1674 protocols instead of disabling individual protocols using 1675 SSL_set_options() or SSL_CONF's Protocol. This change also 1676 removes support for disabling TLS 1.2 in the OpenSSL TLS 1677 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 1678 [Kurt Roeckx] 1679 1680 *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 1681 [Andy Polyakov] 1682 1683 *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 1684 and integrates ECDSA and ECDH functionality into EC. Implementations can 1685 now redirect key generation and no longer need to convert to or from 1686 ECDSA_SIG format. 1687 1688 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 1689 include the ec.h header file instead. 1690 [Steve Henson] 1691 1692 *) Remove support for all 40 and 56 bit ciphers. This includes all the export 1693 ciphers who are no longer supported and drops support the ephemeral RSA key 1694 exchange. The LOW ciphers currently doesn't have any ciphers in it. 1695 [Kurt Roeckx] 1696 1697 *) Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 1698 opaque. For HMAC_CTX, the following constructors and destructors 1699 were added: 1700 1701 HMAC_CTX *HMAC_CTX_new(void); 1702 void HMAC_CTX_free(HMAC_CTX *ctx); 1703 1704 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 1705 destroy such methods has been added. See EVP_MD_meth_new(3) and 1706 EVP_CIPHER_meth_new(3) for documentation. 1707 1708 Additional changes: 1709 1) EVP_MD_CTX_cleanup(), EVP_CIPHER_CTX_cleanup() and 1710 HMAC_CTX_cleanup() were removed. HMAC_CTX_reset() and 1711 EVP_MD_CTX_reset() should be called instead to reinitialise 1712 an already created structure. 1713 2) For consistency with the majority of our object creators and 1714 destructors, EVP_MD_CTX_(create|destroy) were renamed to 1715 EVP_MD_CTX_(new|free). The old names are retained as macros 1716 for deprecated builds. 1717 [Richard Levitte] 1718 1719 *) Added ASYNC support. Libcrypto now includes the async sub-library to enable 1720 cryptographic operations to be performed asynchronously as long as an 1721 asynchronous capable engine is used. See the ASYNC_start_job() man page for 1722 further details. Libssl has also had this capability integrated with the 1723 introduction of the new mode SSL_MODE_ASYNC and associated error 1724 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 1725 pages. This work was developed in partnership with Intel Corp. 1726 [Matt Caswell] 1727 1728 *) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 1729 always enabled now. If you want to disable the support you should 1730 exclude it using the list of supported ciphers. This also means that the 1731 "-no_ecdhe" option has been removed from s_server. 1732 [Kurt Roeckx] 1733 1734 *) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 1735 SSL_{CTX_}set1_curves() which can set a list. 1736 [Kurt Roeckx] 1737 1738 *) Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 1739 curve you want to support using SSL_{CTX_}set1_curves(). 1740 [Kurt Roeckx] 1741 1742 *) State machine rewrite. The state machine code has been significantly 1743 refactored in order to remove much duplication of code and solve issues 1744 with the old code (see ssl/statem/README for further details). This change 1745 does have some associated API changes. Notably the SSL_state() function 1746 has been removed and replaced by SSL_get_state which now returns an 1747 "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed 1748 altogether. The previous handshake states defined in ssl.h and ssl3.h have 1749 also been removed. 1750 [Matt Caswell] 1751 1752 *) All instances of the string "ssleay" in the public API were replaced 1753 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 1754 Some error codes related to internal RSA_eay API's were renamed. 1755 [Rich Salz] 1756 1757 *) The demo files in crypto/threads were moved to demo/threads. 1758 [Rich Salz] 1759 1760 *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 1761 sureware and ubsec. 1762 [Matt Caswell, Rich Salz] 1763 1764 *) New ASN.1 embed macro. 1765 1766 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 1767 structure is not allocated: it is part of the parent. That is instead of 1768 1769 FOO *x; 1770 1771 it must be: 1772 1773 FOO x; 1774 1775 This reduces memory fragmentation and make it impossible to accidentally 1776 set a mandatory field to NULL. 1777 1778 This currently only works for some fields specifically a SEQUENCE, CHOICE, 1779 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 1780 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 1781 SEQUENCE OF. 1782 [Steve Henson] 1783 1784 *) Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 1785 [Emilia Käsper] 1786 1787 *) Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 1788 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 1789 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 1790 DES and RC4 ciphersuites. 1791 [Matt Caswell] 1792 1793 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 1794 This changes the decoding behaviour for some invalid messages, 1795 though the change is mostly in the more lenient direction, and 1796 legacy behaviour is preserved as much as possible. 1797 [Emilia Käsper] 1798 1799 *) Fix no-stdio build. 1800 [ David Woodhouse <David.Woodhouse@intel.com> and also 1801 Ivan Nestlerode <ivan.nestlerode@sonos.com> ] 1802 1803 *) New testing framework 1804 The testing framework has been largely rewritten and is now using 1805 perl and the perl modules Test::Harness and an extended variant of 1806 Test::More called OpenSSL::Test to do its work. All test scripts in 1807 test/ have been rewritten into test recipes, and all direct calls to 1808 executables in test/Makefile have become individual recipes using the 1809 simplified testing OpenSSL::Test::Simple. 1810 1811 For documentation on our testing modules, do: 1812 1813 perldoc test/testlib/OpenSSL/Test/Simple.pm 1814 perldoc test/testlib/OpenSSL/Test.pm 1815 1816 [Richard Levitte] 1817 1818 *) Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 1819 are used; the latter aborts on memory leaks (usually checked on exit). 1820 Some undocumented "set malloc, etc., hooks" functions were removed 1821 and others were changed. All are now documented. 1822 [Rich Salz] 1823 1824 *) In DSA_generate_parameters_ex, if the provided seed is too short, 1825 return an error 1826 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 1827 1828 *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 1829 from RFC4279, RFC4785, RFC5487, RFC5489. 1830 1831 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 1832 original RSA_PSK patch. 1833 [Steve Henson] 1834 1835 *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 1836 era flag was never set throughout the codebase (only read). Also removed 1837 SSL3_FLAGS_POP_BUFFER which was only used if 1838 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 1839 [Matt Caswell] 1840 1841 *) Changed the default name options in the "ca", "crl", "req" and "x509" 1842 to be "oneline" instead of "compat". 1843 [Richard Levitte] 1844 1845 *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 1846 not aware of clients that still exhibit this bug, and the workaround 1847 hasn't been working properly for a while. 1848 [Emilia Käsper] 1849 1850 *) The return type of BIO_number_read() and BIO_number_written() as well as 1851 the corresponding num_read and num_write members in the BIO structure has 1852 changed from unsigned long to uint64_t. On platforms where an unsigned 1853 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 1854 transferred. 1855 [Matt Caswell] 1856 1857 *) Given the pervasive nature of TLS extensions it is inadvisable to run 1858 OpenSSL without support for them. It also means that maintaining 1859 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 1860 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 1861 [Matt Caswell] 1862 1863 *) Removed support for the two export grade static DH ciphersuites 1864 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 1865 were newly added (along with a number of other static DH ciphersuites) to 1866 1.0.2. However the two export ones have *never* worked since they were 1867 introduced. It seems strange in any case to be adding new export 1868 ciphersuites, and given "logjam" it also does not seem correct to fix them. 1869 [Matt Caswell] 1870 1871 *) Version negotiation has been rewritten. In particular SSLv23_method(), 1872 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 1873 and turned into macros which simply call the new preferred function names 1874 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 1875 should use the new names instead. Also as part of this change the ssl23.h 1876 header file has been removed. 1877 [Matt Caswell] 1878 1879 *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 1880 code and the associated standard is no longer considered fit-for-purpose. 1881 [Matt Caswell] 1882 1883 *) RT2547 was closed. When generating a private key, try to make the 1884 output file readable only by the owner. This behavior change might 1885 be noticeable when interacting with other software. 1886 1887 *) Documented all exdata functions. Added CRYPTO_free_ex_index. 1888 Added a test. 1889 [Rich Salz] 1890 1891 *) Added HTTP GET support to the ocsp command. 1892 [Rich Salz] 1893 1894 *) Changed default digest for the dgst and enc commands from MD5 to 1895 sha256 1896 [Rich Salz] 1897 1898 *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 1899 [Matt Caswell] 1900 1901 *) Added support for TLS extended master secret from 1902 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 1903 initial patch which was a great help during development. 1904 [Steve Henson] 1905 1906 *) All libssl internal structures have been removed from the public header 1907 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 1908 now redundant). Users should not attempt to access internal structures 1909 directly. Instead they should use the provided API functions. 1910 [Matt Caswell] 1911 1912 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 1913 Access to deprecated functions can be re-enabled by running config with 1914 "enable-deprecated". In addition applications wishing to use deprecated 1915 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 1916 will, by default, disable some transitive includes that previously existed 1917 in the header files (e.g. ec.h will no longer, by default, include bn.h) 1918 [Matt Caswell] 1919 1920 *) Added support for OCB mode. OpenSSL has been granted a patent license 1921 compatible with the OpenSSL license for use of OCB. Details are available 1922 at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support 1923 for OCB can be removed by calling config with no-ocb. 1924 [Matt Caswell] 1925 1926 *) SSLv2 support has been removed. It still supports receiving a SSLv2 1927 compatible client hello. 1928 [Kurt Roeckx] 1929 1930 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 1931 done while fixing the error code for the key-too-small case. 1932 [Annie Yousar <a.yousar@informatik.hu-berlin.de>] 1933 1934 *) CA.sh has been removed; use CA.pl instead. 1935 [Rich Salz] 1936 1937 *) Removed old DES API. 1938 [Rich Salz] 1939 1940 *) Remove various unsupported platforms: 1941 Sony NEWS4 1942 BEOS and BEOS_R5 1943 NeXT 1944 SUNOS 1945 MPE/iX 1946 Sinix/ReliantUNIX RM400 1947 DGUX 1948 NCR 1949 Tandem 1950 Cray 1951 16-bit platforms such as WIN16 1952 [Rich Salz] 1953 1954 *) Clean up OPENSSL_NO_xxx #define's 1955 Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 1956 Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 1957 OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 1958 OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 1959 OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 1960 Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 1961 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 1962 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 1963 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 1964 Remove MS_STATIC; it's a relic from platforms <32 bits. 1965 [Rich Salz] 1966 1967 *) Cleaned up dead code 1968 Remove all but one '#ifdef undef' which is to be looked at. 1969 [Rich Salz] 1970 1971 *) Clean up calling of xxx_free routines. 1972 Just like free(), fix most of the xxx_free routines to accept 1973 NULL. Remove the non-null checks from callers. Save much code. 1974 [Rich Salz] 1975 1976 *) Add secure heap for storage of private keys (when possible). 1977 Add BIO_s_secmem(), CBIGNUM, etc. 1978 Contributed by Akamai Technologies under our Corporate CLA. 1979 [Rich Salz] 1980 1981 *) Experimental support for a new, fast, unbiased prime candidate generator, 1982 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 1983 [Felix Laurie von Massenbach <felix@erbridge.co.uk>] 1984 1985 *) New output format NSS in the sess_id command line tool. This allows 1986 exporting the session id and the master key in NSS keylog format. 1987 [Martin Kaiser <martin@kaiser.cx>] 1988 1989 *) Harmonize version and its documentation. -f flag is used to display 1990 compilation flags. 1991 [mancha <mancha1@zoho.com>] 1992 1993 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 1994 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 1995 [mancha <mancha1@zoho.com>] 1996 1997 *) Fix some double frees. These are not thought to be exploitable. 1998 [mancha <mancha1@zoho.com>] 1999 2000 *) A missing bounds check in the handling of the TLS heartbeat extension 2001 can be used to reveal up to 64k of memory to a connected client or 2002 server. 2003 2004 Thanks for Neel Mehta of Google Security for discovering this bug and to 2005 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 2006 preparing the fix (CVE-2014-0160) 2007 [Adam Langley, Bodo Moeller] 2008 2009 *) Fix for the attack described in the paper "Recovering OpenSSL 2010 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 2011 by Yuval Yarom and Naomi Benger. Details can be obtained from: 2012 http://eprint.iacr.org/2014/140 2013 2014 Thanks to Yuval Yarom and Naomi Benger for discovering this 2015 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 2016 [Yuval Yarom and Naomi Benger] 2017 2018 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 2019 this fixes a limitation in previous versions of OpenSSL. 2020 [Steve Henson] 2021 2022 *) Experimental encrypt-then-mac support. 2023 2024 Experimental support for encrypt then mac from 2025 draft-gutmann-tls-encrypt-then-mac-02.txt 2026 2027 To enable it set the appropriate extension number (0x42 for the test 2028 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 2029 2030 For non-compliant peers (i.e. just about everything) this should have no 2031 effect. 2032 2033 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 2034 2035 [Steve Henson] 2036 2037 *) Add EVP support for key wrapping algorithms, to avoid problems with 2038 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 2039 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 2040 algorithms and include tests cases. 2041 [Steve Henson] 2042 2043 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 2044 enveloped data. 2045 [Steve Henson] 2046 2047 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 2048 MGF1 digest and OAEP label. 2049 [Steve Henson] 2050 2051 *) Make openssl verify return errors. 2052 [Chris Palmer <palmer@google.com> and Ben Laurie] 2053 2054 *) New function ASN1_TIME_diff to calculate the difference between two 2055 ASN1_TIME structures or one structure and the current time. 2056 [Steve Henson] 2057 2058 *) Update fips_test_suite to support multiple command line options. New 2059 test to induce all self test errors in sequence and check expected 2060 failures. 2061 [Steve Henson] 2062 2063 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 2064 sign or verify all in one operation. 2065 [Steve Henson] 2066 2067 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm 2068 test programs and fips_test_suite. Includes functionality to parse 2069 the minimal script output of fipsalgest.pl directly. 2070 [Steve Henson] 2071 2072 *) Add authorisation parameter to FIPS_module_mode_set(). 2073 [Steve Henson] 2074 2075 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 2076 [Steve Henson] 2077 2078 *) Use separate DRBG fields for internal and external flags. New function 2079 FIPS_drbg_health_check() to perform on demand health checking. Add 2080 generation tests to fips_test_suite with reduced health check interval to 2081 demonstrate periodic health checking. Add "nodh" option to 2082 fips_test_suite to skip very slow DH test. 2083 [Steve Henson] 2084 2085 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 2086 based on NID. 2087 [Steve Henson] 2088 2089 *) More extensive health check for DRBG checking many more failure modes. 2090 New function FIPS_selftest_drbg_all() to handle every possible DRBG 2091 combination: call this in fips_test_suite. 2092 [Steve Henson] 2093 2094 *) Add support for canonical generation of DSA parameter 'g'. See 2095 FIPS 186-3 A.2.3. 2096 2097 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 2098 POST to handle HMAC cases. 2099 [Steve Henson] 2100 2101 *) Add functions FIPS_module_version() and FIPS_module_version_text() 2102 to return numerical and string versions of the FIPS module number. 2103 [Steve Henson] 2104 2105 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 2106 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 2107 outside the validated module in the FIPS capable OpenSSL. 2108 [Steve Henson] 2109 2110 *) Minor change to DRBG entropy callback semantics. In some cases 2111 there is no multiple of the block length between min_len and 2112 max_len. Allow the callback to return more than max_len bytes 2113 of entropy but discard any extra: it is the callback's responsibility 2114 to ensure that the extra data discarded does not impact the 2115 requested amount of entropy. 2116 [Steve Henson] 2117 2118 *) Add PRNG security strength checks to RSA, DSA and ECDSA using 2119 information in FIPS186-3, SP800-57 and SP800-131A. 2120 [Steve Henson] 2121 2122 *) CCM support via EVP. Interface is very similar to GCM case except we 2123 must supply all data in one chunk (i.e. no update, final) and the 2124 message length must be supplied if AAD is used. Add algorithm test 2125 support. 2126 [Steve Henson] 2127 2128 *) Initial version of POST overhaul. Add POST callback to allow the status 2129 of POST to be monitored and/or failures induced. Modify fips_test_suite 2130 to use callback. Always run all selftests even if one fails. 2131 [Steve Henson] 2132 2133 *) XTS support including algorithm test driver in the fips_gcmtest program. 2134 Note: this does increase the maximum key length from 32 to 64 bytes but 2135 there should be no binary compatibility issues as existing applications 2136 will never use XTS mode. 2137 [Steve Henson] 2138 2139 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 2140 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 2141 performs algorithm blocking for unapproved PRNG types. Also do not 2142 set PRNG type in FIPS_mode_set(): leave this to the application. 2143 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 2144 the standard OpenSSL PRNG: set additional data to a date time vector. 2145 [Steve Henson] 2146 2147 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*. 2148 This shouldn't present any incompatibility problems because applications 2149 shouldn't be using these directly and any that are will need to rethink 2150 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 2151 [Steve Henson] 2152 2153 *) Extensive self tests and health checking required by SP800-90 DRBG. 2154 Remove strength parameter from FIPS_drbg_instantiate and always 2155 instantiate at maximum supported strength. 2156 [Steve Henson] 2157 2158 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 2159 [Steve Henson] 2160 2161 *) New algorithm test program fips_dhvs to handle DH primitives only testing. 2162 [Steve Henson] 2163 2164 *) New function DH_compute_key_padded() to compute a DH key and pad with 2165 leading zeroes if needed: this complies with SP800-56A et al. 2166 [Steve Henson] 2167 2168 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 2169 anything, incomplete, subject to change and largely untested at present. 2170 [Steve Henson] 2171 2172 *) Modify fipscanisteronly build option to only build the necessary object 2173 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 2174 [Steve Henson] 2175 2176 *) Add experimental option FIPSSYMS to give all symbols in 2177 fipscanister.o and FIPS or fips prefix. This will avoid 2178 conflicts with future versions of OpenSSL. Add perl script 2179 util/fipsas.pl to preprocess assembly language source files 2180 and rename any affected symbols. 2181 [Steve Henson] 2182 2183 *) Add selftest checks and algorithm block of non-fips algorithms in 2184 FIPS mode. Remove DES2 from selftests. 2185 [Steve Henson] 2186 2187 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 2188 return internal method without any ENGINE dependencies. Add new 2189 tiny fips sign and verify functions. 2190 [Steve Henson] 2191 2192 *) New build option no-ec2m to disable characteristic 2 code. 2193 [Steve Henson] 2194 2195 *) New build option "fipscanisteronly". This only builds fipscanister.o 2196 and (currently) associated fips utilities. Uses the file Makefile.fips 2197 instead of Makefile.org as the prototype. 2198 [Steve Henson] 2199 2200 *) Add some FIPS mode restrictions to GCM. Add internal IV generator. 2201 Update fips_gcmtest to use IV generator. 2202 [Steve Henson] 2203 2204 *) Initial, experimental EVP support for AES-GCM. AAD can be input by 2205 setting output buffer to NULL. The *Final function must be 2206 called although it will not retrieve any additional data. The tag 2207 can be set or retrieved with a ctrl. The IV length is by default 12 2208 bytes (96 bits) but can be set to an alternative value. If the IV 2209 length exceeds the maximum IV length (currently 16 bytes) it cannot be 2210 set before the key. 2211 [Steve Henson] 2212 2213 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 2214 underlying do_cipher function handles all cipher semantics itself 2215 including padding and finalisation. This is useful if (for example) 2216 an ENGINE cipher handles block padding itself. The behaviour of 2217 do_cipher is subtly changed if this flag is set: the return value 2218 is the number of characters written to the output buffer (zero is 2219 no longer an error code) or a negative error code. Also if the 2220 input buffer is NULL and length 0 finalisation should be performed. 2221 [Steve Henson] 2222 2223 *) If a candidate issuer certificate is already part of the constructed 2224 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 2225 [Steve Henson] 2226 2227 *) Improve forward-security support: add functions 2228 2229 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 2230 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 2231 2232 for use by SSL/TLS servers; the callback function will be called whenever a 2233 new session is created, and gets to decide whether the session may be 2234 cached to make it resumable (return 0) or not (return 1). (As by the 2235 SSL/TLS protocol specifications, the session_id sent by the server will be 2236 empty to indicate that the session is not resumable; also, the server will 2237 not generate RFC 4507 (RFC 5077) session tickets.) 2238 2239 A simple reasonable callback implementation is to return is_forward_secure. 2240 This parameter will be set to 1 or 0 depending on the ciphersuite selected 2241 by the SSL/TLS server library, indicating whether it can provide forward 2242 security. 2243 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)] 2244 2245 *) New -verify_name option in command line utilities to set verification 2246 parameters by name. 2247 [Steve Henson] 2248 2249 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 2250 Add CMAC pkey methods. 2251 [Steve Henson] 2252 2253 *) Experimental renegotiation in s_server -www mode. If the client 2254 browses /reneg connection is renegotiated. If /renegcert it is 2255 renegotiated requesting a certificate. 2256 [Steve Henson] 2257 2258 *) Add an "external" session cache for debugging purposes to s_server. This 2259 should help trace issues which normally are only apparent in deployed 2260 multi-process servers. 2261 [Steve Henson] 2262 2263 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 2264 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 2265 BIO_set_cipher() and some obscure PEM functions were changed so they 2266 can now return an error. The RAND changes required a change to the 2267 RAND_METHOD structure. 2268 [Steve Henson] 2269 2270 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of 2271 a gcc attribute to warn if the result of a function is ignored. This 2272 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 2273 whose return value is often ignored. 2274 [Steve Henson] 2275 2276 *) New -noct, -requestct, -requirect and -ctlogfile options for s_client. 2277 These allow SCTs (signed certificate timestamps) to be requested and 2278 validated when establishing a connection. 2279 [Rob Percival <robpercival@google.com>] 2280 2281 Changes between 1.0.2g and 1.0.2h [3 May 2016] 2282 2283 *) Prevent padding oracle in AES-NI CBC MAC check 2284 2285 A MITM attacker can use a padding oracle attack to decrypt traffic 2286 when the connection uses an AES CBC cipher and the server support 2287 AES-NI. 2288 2289 This issue was introduced as part of the fix for Lucky 13 padding 2290 attack (CVE-2013-0169). The padding check was rewritten to be in 2291 constant time by making sure that always the same bytes are read and 2292 compared against either the MAC or padding bytes. But it no longer 2293 checked that there was enough data to have both the MAC and padding 2294 bytes. 2295 2296 This issue was reported by Juraj Somorovsky using TLS-Attacker. 2297 (CVE-2016-2107) 2298 [Kurt Roeckx] 2299 2300 *) Fix EVP_EncodeUpdate overflow 2301 2302 An overflow can occur in the EVP_EncodeUpdate() function which is used for 2303 Base64 encoding of binary data. If an attacker is able to supply very large 2304 amounts of input data then a length check can overflow resulting in a heap 2305 corruption. 2306 2307 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 2308 the PEM_write_bio* family of functions. These are mainly used within the 2309 OpenSSL command line applications, so any application which processes data 2310 from an untrusted source and outputs it as a PEM file should be considered 2311 vulnerable to this issue. User applications that call these APIs directly 2312 with large amounts of untrusted data may also be vulnerable. 2313 2314 This issue was reported by Guido Vranken. 2315 (CVE-2016-2105) 2316 [Matt Caswell] 2317 2318 *) Fix EVP_EncryptUpdate overflow 2319 2320 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 2321 is able to supply very large amounts of input data after a previous call to 2322 EVP_EncryptUpdate() with a partial block then a length check can overflow 2323 resulting in a heap corruption. Following an analysis of all OpenSSL 2324 internal usage of the EVP_EncryptUpdate() function all usage is one of two 2325 forms. The first form is where the EVP_EncryptUpdate() call is known to be 2326 the first called function after an EVP_EncryptInit(), and therefore that 2327 specific call must be safe. The second form is where the length passed to 2328 EVP_EncryptUpdate() can be seen from the code to be some small value and 2329 therefore there is no possibility of an overflow. Since all instances are 2330 one of these two forms, it is believed that there can be no overflows in 2331 internal code due to this problem. It should be noted that 2332 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 2333 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 2334 of these calls have also been analysed too and it is believed there are no 2335 instances in internal usage where an overflow could occur. 2336 2337 This issue was reported by Guido Vranken. 2338 (CVE-2016-2106) 2339 [Matt Caswell] 2340 2341 *) Prevent ASN.1 BIO excessive memory allocation 2342 2343 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 2344 a short invalid encoding can cause allocation of large amounts of memory 2345 potentially consuming excessive resources or exhausting memory. 2346 2347 Any application parsing untrusted data through d2i BIO functions is 2348 affected. The memory based functions such as d2i_X509() are *not* affected. 2349 Since the memory based functions are used by the TLS library, TLS 2350 applications are not affected. 2351 2352 This issue was reported by Brian Carpenter. 2353 (CVE-2016-2109) 2354 [Stephen Henson] 2355 2356 *) EBCDIC overread 2357 2358 ASN1 Strings that are over 1024 bytes can cause an overread in applications 2359 using the X509_NAME_oneline() function on EBCDIC systems. This could result 2360 in arbitrary stack data being returned in the buffer. 2361 2362 This issue was reported by Guido Vranken. 2363 (CVE-2016-2176) 2364 [Matt Caswell] 2365 2366 *) Modify behavior of ALPN to invoke callback after SNI/servername 2367 callback, such that updates to the SSL_CTX affect ALPN. 2368 [Todd Short] 2369 2370 *) Remove LOW from the DEFAULT cipher list. This removes singles DES from the 2371 default. 2372 [Kurt Roeckx] 2373 2374 *) Only remove the SSLv2 methods with the no-ssl2-method option. When the 2375 methods are enabled and ssl2 is disabled the methods return NULL. 2376 [Kurt Roeckx] 2377 2378 Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 2379 2380 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 2381 Builds that are not configured with "enable-weak-ssl-ciphers" will not 2382 provide any "EXPORT" or "LOW" strength ciphers. 2383 [Viktor Dukhovni] 2384 2385 * Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 2386 is by default disabled at build-time. Builds that are not configured with 2387 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 2388 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 2389 will need to explicitly call either of: 2390 2391 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 2392 or 2393 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 2394 2395 as appropriate. Even if either of those is used, or the application 2396 explicitly uses the version-specific SSLv2_method() or its client and 2397 server variants, SSLv2 ciphers vulnerable to exhaustive search key 2398 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 2399 ciphers, and SSLv2 56-bit DES are no longer available. 2400 (CVE-2016-0800) 2401 [Viktor Dukhovni] 2402 2403 *) Fix a double-free in DSA code 2404 2405 A double free bug was discovered when OpenSSL parses malformed DSA private 2406 keys and could lead to a DoS attack or memory corruption for applications 2407 that receive DSA private keys from untrusted sources. This scenario is 2408 considered rare. 2409 2410 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 2411 libFuzzer. 2412 (CVE-2016-0705) 2413 [Stephen Henson] 2414 2415 *) Disable SRP fake user seed to address a server memory leak. 2416 2417 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 2418 2419 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 2420 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 2421 was changed to ignore the "fake user" SRP seed, even if the seed 2422 is configured. 2423 2424 Users should use SRP_VBASE_get1_by_user instead. Note that in 2425 SRP_VBASE_get1_by_user, caller must free the returned value. Note 2426 also that even though configuring the SRP seed attempts to hide 2427 invalid usernames by continuing the handshake with fake 2428 credentials, this behaviour is not constant time and no strong 2429 guarantees are made that the handshake is indistinguishable from 2430 that of a valid user. 2431 (CVE-2016-0798) 2432 [Emilia Käsper] 2433 2434 *) Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 2435 2436 In the BN_hex2bn function the number of hex digits is calculated using an 2437 int value |i|. Later |bn_expand| is called with a value of |i * 4|. For 2438 large values of |i| this can result in |bn_expand| not allocating any 2439 memory because |i * 4| is negative. This can leave the internal BIGNUM data 2440 field as NULL leading to a subsequent NULL ptr deref. For very large values 2441 of |i|, the calculation |i * 4| could be a positive value smaller than |i|. 2442 In this case memory is allocated to the internal BIGNUM data field, but it 2443 is insufficiently sized leading to heap corruption. A similar issue exists 2444 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 2445 is ever called by user applications with very large untrusted hex/dec data. 2446 This is anticipated to be a rare occurrence. 2447 2448 All OpenSSL internal usage of these functions use data that is not expected 2449 to be untrusted, e.g. config file data or application command line 2450 arguments. If user developed applications generate config file data based 2451 on untrusted data then it is possible that this could also lead to security 2452 consequences. This is also anticipated to be rare. 2453 2454 This issue was reported to OpenSSL by Guido Vranken. 2455 (CVE-2016-0797) 2456 [Matt Caswell] 2457 2458 *) Fix memory issues in BIO_*printf functions 2459 2460 The internal |fmtstr| function used in processing a "%s" format string in 2461 the BIO_*printf functions could overflow while calculating the length of a 2462 string and cause an OOB read when printing very long strings. 2463 2464 Additionally the internal |doapr_outch| function can attempt to write to an 2465 OOB memory location (at an offset from the NULL pointer) in the event of a 2466 memory allocation failure. In 1.0.2 and below this could be caused where 2467 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 2468 could be in processing a very long "%s" format string. Memory leaks can 2469 also occur. 2470 2471 The first issue may mask the second issue dependent on compiler behaviour. 2472 These problems could enable attacks where large amounts of untrusted data 2473 is passed to the BIO_*printf functions. If applications use these functions 2474 in this way then they could be vulnerable. OpenSSL itself uses these 2475 functions when printing out human-readable dumps of ASN.1 data. Therefore 2476 applications that print this data could be vulnerable if the data is from 2477 untrusted sources. OpenSSL command line applications could also be 2478 vulnerable where they print out ASN.1 data, or if untrusted data is passed 2479 as command line arguments. 2480 2481 Libssl is not considered directly vulnerable. Additionally certificates etc 2482 received via remote connections via libssl are also unlikely to be able to 2483 trigger these issues because of message size limits enforced within libssl. 2484 2485 This issue was reported to OpenSSL Guido Vranken. 2486 (CVE-2016-0799) 2487 [Matt Caswell] 2488 2489 *) Side channel attack on modular exponentiation 2490 2491 A side-channel attack was found which makes use of cache-bank conflicts on 2492 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 2493 of RSA keys. The ability to exploit this issue is limited as it relies on 2494 an attacker who has control of code in a thread running on the same 2495 hyper-threaded core as the victim thread which is performing decryptions. 2496 2497 This issue was reported to OpenSSL by Yuval Yarom, The University of 2498 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 2499 Nadia Heninger, University of Pennsylvania with more information at 2500 http://cachebleed.info. 2501 (CVE-2016-0702) 2502 [Andy Polyakov] 2503 2504 *) Change the req app to generate a 2048-bit RSA/DSA key by default, 2505 if no keysize is specified with default_bits. This fixes an 2506 omission in an earlier change that changed all RSA/DSA key generation 2507 apps to use 2048 bits by default. 2508 [Emilia Käsper] 2509 2510 Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 2511 *) DH small subgroups 2512 2513 Historically OpenSSL only ever generated DH parameters based on "safe" 2514 primes. More recently (in version 1.0.2) support was provided for 2515 generating X9.42 style parameter files such as those required for RFC 5114 2516 support. The primes used in such files may not be "safe". Where an 2517 application is using DH configured with parameters based on primes that are 2518 not "safe" then an attacker could use this fact to find a peer's private 2519 DH exponent. This attack requires that the attacker complete multiple 2520 handshakes in which the peer uses the same private DH exponent. For example 2521 this could be used to discover a TLS server's private DH exponent if it's 2522 reusing the private DH exponent or it's using a static DH ciphersuite. 2523 2524 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 2525 TLS. It is not on by default. If the option is not set then the server 2526 reuses the same private DH exponent for the life of the server process and 2527 would be vulnerable to this attack. It is believed that many popular 2528 applications do set this option and would therefore not be at risk. 2529 2530 The fix for this issue adds an additional check where a "q" parameter is 2531 available (as is the case in X9.42 based parameters). This detects the 2532 only known attack, and is the only possible defense for static DH 2533 ciphersuites. This could have some performance impact. 2534 2535 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 2536 default and cannot be disabled. This could have some performance impact. 2537 2538 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 2539 (CVE-2016-0701) 2540 [Matt Caswell] 2541 2542 *) SSLv2 doesn't block disabled ciphers 2543 2544 A malicious client can negotiate SSLv2 ciphers that have been disabled on 2545 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 2546 been disabled, provided that the SSLv2 protocol was not also disabled via 2547 SSL_OP_NO_SSLv2. 2548 2549 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 2550 and Sebastian Schinzel. 2551 (CVE-2015-3197) 2552 [Viktor Dukhovni] 2553 2554 Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 2555 2556 *) BN_mod_exp may produce incorrect results on x86_64 2557 2558 There is a carry propagating bug in the x86_64 Montgomery squaring 2559 procedure. No EC algorithms are affected. Analysis suggests that attacks 2560 against RSA and DSA as a result of this defect would be very difficult to 2561 perform and are not believed likely. Attacks against DH are considered just 2562 feasible (although very difficult) because most of the work necessary to 2563 deduce information about a private key may be performed offline. The amount 2564 of resources required for such an attack would be very significant and 2565 likely only accessible to a limited number of attackers. An attacker would 2566 additionally need online access to an unpatched system using the target 2567 private key in a scenario with persistent DH parameters and a private 2568 key that is shared between multiple clients. For example this can occur by 2569 default in OpenSSL DHE based SSL/TLS ciphersuites. 2570 2571 This issue was reported to OpenSSL by Hanno Böck. 2572 (CVE-2015-3193) 2573 [Andy Polyakov] 2574 2575 *) Certificate verify crash with missing PSS parameter 2576 2577 The signature verification routines will crash with a NULL pointer 2578 dereference if presented with an ASN.1 signature using the RSA PSS 2579 algorithm and absent mask generation function parameter. Since these 2580 routines are used to verify certificate signature algorithms this can be 2581 used to crash any certificate verification operation and exploited in a 2582 DoS attack. Any application which performs certificate verification is 2583 vulnerable including OpenSSL clients and servers which enable client 2584 authentication. 2585 2586 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 2587 (CVE-2015-3194) 2588 [Stephen Henson] 2589 2590 *) X509_ATTRIBUTE memory leak 2591 2592 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 2593 memory. This structure is used by the PKCS#7 and CMS routines so any 2594 application which reads PKCS#7 or CMS data from untrusted sources is 2595 affected. SSL/TLS is not affected. 2596 2597 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 2598 libFuzzer. 2599 (CVE-2015-3195) 2600 [Stephen Henson] 2601 2602 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 2603 This changes the decoding behaviour for some invalid messages, 2604 though the change is mostly in the more lenient direction, and 2605 legacy behaviour is preserved as much as possible. 2606 [Emilia Käsper] 2607 2608 *) In DSA_generate_parameters_ex, if the provided seed is too short, 2609 return an error 2610 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 2611 2612 Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 2613 2614 *) Alternate chains certificate forgery 2615 2616 During certificate verification, OpenSSL will attempt to find an 2617 alternative certificate chain if the first attempt to build such a chain 2618 fails. An error in the implementation of this logic can mean that an 2619 attacker could cause certain checks on untrusted certificates to be 2620 bypassed, such as the CA flag, enabling them to use a valid leaf 2621 certificate to act as a CA and "issue" an invalid certificate. 2622 2623 This issue was reported to OpenSSL by Adam Langley/David Benjamin 2624 (Google/BoringSSL). 2625 [Matt Caswell] 2626 2627 Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 2628 2629 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 2630 incompatibility in the handling of HMAC. The previous ABI has now been 2631 restored. 2632 [Matt Caswell] 2633 2634 Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 2635 2636 *) Malformed ECParameters causes infinite loop 2637 2638 When processing an ECParameters structure OpenSSL enters an infinite loop 2639 if the curve specified is over a specially malformed binary polynomial 2640 field. 2641 2642 This can be used to perform denial of service against any 2643 system which processes public keys, certificate requests or 2644 certificates. This includes TLS clients and TLS servers with 2645 client authentication enabled. 2646 2647 This issue was reported to OpenSSL by Joseph Barr-Pixton. 2648 (CVE-2015-1788) 2649 [Andy Polyakov] 2650 2651 *) Exploitable out-of-bounds read in X509_cmp_time 2652 2653 X509_cmp_time does not properly check the length of the ASN1_TIME 2654 string and can read a few bytes out of bounds. In addition, 2655 X509_cmp_time accepts an arbitrary number of fractional seconds in the 2656 time string. 2657 2658 An attacker can use this to craft malformed certificates and CRLs of 2659 various sizes and potentially cause a segmentation fault, resulting in 2660 a DoS on applications that verify certificates or CRLs. TLS clients 2661 that verify CRLs are affected. TLS clients and servers with client 2662 authentication enabled may be affected if they use custom verification 2663 callbacks. 2664 2665 This issue was reported to OpenSSL by Robert Swiecki (Google), and 2666 independently by Hanno Böck. 2667 (CVE-2015-1789) 2668 [Emilia Käsper] 2669 2670 *) PKCS7 crash with missing EnvelopedContent 2671 2672 The PKCS#7 parsing code does not handle missing inner EncryptedContent 2673 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 2674 with missing content and trigger a NULL pointer dereference on parsing. 2675 2676 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 2677 structures from untrusted sources are affected. OpenSSL clients and 2678 servers are not affected. 2679 2680 This issue was reported to OpenSSL by Michal Zalewski (Google). 2681 (CVE-2015-1790) 2682 [Emilia Käsper] 2683 2684 *) CMS verify infinite loop with unknown hash function 2685 2686 When verifying a signedData message the CMS code can enter an infinite loop 2687 if presented with an unknown hash function OID. This can be used to perform 2688 denial of service against any system which verifies signedData messages using 2689 the CMS code. 2690 This issue was reported to OpenSSL by Johannes Bauer. 2691 (CVE-2015-1792) 2692 [Stephen Henson] 2693 2694 *) Race condition handling NewSessionTicket 2695 2696 If a NewSessionTicket is received by a multi-threaded client when attempting to 2697 reuse a previous ticket then a race condition can occur potentially leading to 2698 a double free of the ticket data. 2699 (CVE-2015-1791) 2700 [Matt Caswell] 2701 2702 *) Only support 256-bit or stronger elliptic curves with the 2703 'ecdh_auto' setting (server) or by default (client). Of supported 2704 curves, prefer P-256 (both). 2705 [Emilia Kasper] 2706 2707 Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 2708 2709 *) ClientHello sigalgs DoS fix 2710 2711 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 2712 invalid signature algorithms extension a NULL pointer dereference will 2713 occur. This can be exploited in a DoS attack against the server. 2714 2715 This issue was was reported to OpenSSL by David Ramos of Stanford 2716 University. 2717 (CVE-2015-0291) 2718 [Stephen Henson and Matt Caswell] 2719 2720 *) Multiblock corrupted pointer fix 2721 2722 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 2723 feature only applies on 64 bit x86 architecture platforms that support AES 2724 NI instructions. A defect in the implementation of "multiblock" can cause 2725 OpenSSL's internal write buffer to become incorrectly set to NULL when 2726 using non-blocking IO. Typically, when the user application is using a 2727 socket BIO for writing, this will only result in a failed connection. 2728 However if some other BIO is used then it is likely that a segmentation 2729 fault will be triggered, thus enabling a potential DoS attack. 2730 2731 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 2732 (CVE-2015-0290) 2733 [Matt Caswell] 2734 2735 *) Segmentation fault in DTLSv1_listen fix 2736 2737 The DTLSv1_listen function is intended to be stateless and processes the 2738 initial ClientHello from many peers. It is common for user code to loop 2739 over the call to DTLSv1_listen until a valid ClientHello is received with 2740 an associated cookie. A defect in the implementation of DTLSv1_listen means 2741 that state is preserved in the SSL object from one invocation to the next 2742 that can lead to a segmentation fault. Errors processing the initial 2743 ClientHello can trigger this scenario. An example of such an error could be 2744 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 2745 server. 2746 2747 This issue was reported to OpenSSL by Per Allansson. 2748 (CVE-2015-0207) 2749 [Matt Caswell] 2750 2751 *) Segmentation fault in ASN1_TYPE_cmp fix 2752 2753 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 2754 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 2755 certificate signature algorithm consistency this can be used to crash any 2756 certificate verification operation and exploited in a DoS attack. Any 2757 application which performs certificate verification is vulnerable including 2758 OpenSSL clients and servers which enable client authentication. 2759 (CVE-2015-0286) 2760 [Stephen Henson] 2761 2762 *) Segmentation fault for invalid PSS parameters fix 2763 2764 The signature verification routines will crash with a NULL pointer 2765 dereference if presented with an ASN.1 signature using the RSA PSS 2766 algorithm and invalid parameters. Since these routines are used to verify 2767 certificate signature algorithms this can be used to crash any 2768 certificate verification operation and exploited in a DoS attack. Any 2769 application which performs certificate verification is vulnerable including 2770 OpenSSL clients and servers which enable client authentication. 2771 2772 This issue was was reported to OpenSSL by Brian Carpenter. 2773 (CVE-2015-0208) 2774 [Stephen Henson] 2775 2776 *) ASN.1 structure reuse memory corruption fix 2777 2778 Reusing a structure in ASN.1 parsing may allow an attacker to cause 2779 memory corruption via an invalid write. Such reuse is and has been 2780 strongly discouraged and is believed to be rare. 2781 2782 Applications that parse structures containing CHOICE or ANY DEFINED BY 2783 components may be affected. Certificate parsing (d2i_X509 and related 2784 functions) are however not affected. OpenSSL clients and servers are 2785 not affected. 2786 (CVE-2015-0287) 2787 [Stephen Henson] 2788 2789 *) PKCS7 NULL pointer dereferences fix 2790 2791 The PKCS#7 parsing code does not handle missing outer ContentInfo 2792 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 2793 missing content and trigger a NULL pointer dereference on parsing. 2794 2795 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 2796 otherwise parse PKCS#7 structures from untrusted sources are 2797 affected. OpenSSL clients and servers are not affected. 2798 2799 This issue was reported to OpenSSL by Michal Zalewski (Google). 2800 (CVE-2015-0289) 2801 [Emilia Käsper] 2802 2803 *) DoS via reachable assert in SSLv2 servers fix 2804 2805 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 2806 servers that both support SSLv2 and enable export cipher suites by sending 2807 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 2808 2809 This issue was discovered by Sean Burford (Google) and Emilia Käsper 2810 (OpenSSL development team). 2811 (CVE-2015-0293) 2812 [Emilia Käsper] 2813 2814 *) Empty CKE with client auth and DHE fix 2815 2816 If client auth is used then a server can seg fault in the event of a DHE 2817 ciphersuite being selected and a zero length ClientKeyExchange message 2818 being sent by the client. This could be exploited in a DoS attack. 2819 (CVE-2015-1787) 2820 [Matt Caswell] 2821 2822 *) Handshake with unseeded PRNG fix 2823 2824 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 2825 with an unseeded PRNG. The conditions are: 2826 - The client is on a platform where the PRNG has not been seeded 2827 automatically, and the user has not seeded manually 2828 - A protocol specific client method version has been used (i.e. not 2829 SSL_client_methodv23) 2830 - A ciphersuite is used that does not require additional random data from 2831 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 2832 2833 If the handshake succeeds then the client random that has been used will 2834 have been generated from a PRNG with insufficient entropy and therefore the 2835 output may be predictable. 2836 2837 For example using the following command with an unseeded openssl will 2838 succeed on an unpatched platform: 2839 2840 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 2841 (CVE-2015-0285) 2842 [Matt Caswell] 2843 2844 *) Use After Free following d2i_ECPrivatekey error fix 2845 2846 A malformed EC private key file consumed via the d2i_ECPrivateKey function 2847 could cause a use after free condition. This, in turn, could cause a double 2848 free in several private key parsing functions (such as d2i_PrivateKey 2849 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 2850 for applications that receive EC private keys from untrusted 2851 sources. This scenario is considered rare. 2852 2853 This issue was discovered by the BoringSSL project and fixed in their 2854 commit 517073cd4b. 2855 (CVE-2015-0209) 2856 [Matt Caswell] 2857 2858 *) X509_to_X509_REQ NULL pointer deref fix 2859 2860 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 2861 the certificate key is invalid. This function is rarely used in practice. 2862 2863 This issue was discovered by Brian Carpenter. 2864 (CVE-2015-0288) 2865 [Stephen Henson] 2866 2867 *) Removed the export ciphers from the DEFAULT ciphers 2868 [Kurt Roeckx] 2869 2870 Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 2871 2872 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 2873 ARMv5 through ARMv8, as opposite to "locking" it to single one. 2874 So far those who have to target multiple platforms would compromise 2875 and argue that binary targeting say ARMv5 would still execute on 2876 ARMv8. "Universal" build resolves this compromise by providing 2877 near-optimal performance even on newer platforms. 2878 [Andy Polyakov] 2879 2880 *) Accelerated NIST P-256 elliptic curve implementation for x86_64 2881 (other platforms pending). 2882 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] 2883 2884 *) Add support for the SignedCertificateTimestampList certificate and 2885 OCSP response extensions from RFC6962. 2886 [Rob Stradling] 2887 2888 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 2889 for corner cases. (Certain input points at infinity could lead to 2890 bogus results, with non-infinity inputs mapped to infinity too.) 2891 [Bodo Moeller] 2892 2893 *) Initial support for PowerISA 2.0.7, first implemented in POWER8. 2894 This covers AES, SHA256/512 and GHASH. "Initial" means that most 2895 common cases are optimized and there still is room for further 2896 improvements. Vector Permutation AES for Altivec is also added. 2897 [Andy Polyakov] 2898 2899 *) Add support for little-endian ppc64 Linux target. 2900 [Marcelo Cerri (IBM)] 2901 2902 *) Initial support for AMRv8 ISA crypto extensions. This covers AES, 2903 SHA1, SHA256 and GHASH. "Initial" means that most common cases 2904 are optimized and there still is room for further improvements. 2905 Both 32- and 64-bit modes are supported. 2906 [Andy Polyakov, Ard Biesheuvel (Linaro)] 2907 2908 *) Improved ARMv7 NEON support. 2909 [Andy Polyakov] 2910 2911 *) Support for SPARC Architecture 2011 crypto extensions, first 2912 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 2913 SHA256/512, MD5, GHASH and modular exponentiation. 2914 [Andy Polyakov, David Miller] 2915 2916 *) Accelerated modular exponentiation for Intel processors, a.k.a. 2917 RSAZ. 2918 [Shay Gueron & Vlad Krasnov (Intel Corp)] 2919 2920 *) Support for new and upcoming Intel processors, including AVX2, 2921 BMI and SHA ISA extensions. This includes additional "stitched" 2922 implementations, AESNI-SHA256 and GCM, and multi-buffer support 2923 for TLS encrypt. 2924 2925 This work was sponsored by Intel Corp. 2926 [Andy Polyakov] 2927 2928 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 2929 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 2930 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 2931 [Steve Henson] 2932 2933 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 2934 this fixes a limitation in previous versions of OpenSSL. 2935 [Steve Henson] 2936 2937 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 2938 MGF1 digest and OAEP label. 2939 [Steve Henson] 2940 2941 *) Add EVP support for key wrapping algorithms, to avoid problems with 2942 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 2943 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 2944 algorithms and include tests cases. 2945 [Steve Henson] 2946 2947 *) Add functions to allocate and set the fields of an ECDSA_METHOD 2948 structure. 2949 [Douglas E. Engert, Steve Henson] 2950 2951 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 2952 difference in days and seconds between two tm or ASN1_TIME structures. 2953 [Steve Henson] 2954 2955 *) Add -rev test option to s_server to just reverse order of characters 2956 received by client and send back to server. Also prints an abbreviated 2957 summary of the connection parameters. 2958 [Steve Henson] 2959 2960 *) New option -brief for s_client and s_server to print out a brief summary 2961 of connection parameters. 2962 [Steve Henson] 2963 2964 *) Add callbacks for arbitrary TLS extensions. 2965 [Trevor Perrin <trevp@trevp.net> and Ben Laurie] 2966 2967 *) New option -crl_download in several openssl utilities to download CRLs 2968 from CRLDP extension in certificates. 2969 [Steve Henson] 2970 2971 *) New options -CRL and -CRLform for s_client and s_server for CRLs. 2972 [Steve Henson] 2973 2974 *) New function X509_CRL_diff to generate a delta CRL from the difference 2975 of two full CRLs. Add support to "crl" utility. 2976 [Steve Henson] 2977 2978 *) New functions to set lookup_crls function and to retrieve 2979 X509_STORE from X509_STORE_CTX. 2980 [Steve Henson] 2981 2982 *) Print out deprecated issuer and subject unique ID fields in 2983 certificates. 2984 [Steve Henson] 2985 2986 *) Extend OCSP I/O functions so they can be used for simple general purpose 2987 HTTP as well as OCSP. New wrapper function which can be used to download 2988 CRLs using the OCSP API. 2989 [Steve Henson] 2990 2991 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. 2992 [Steve Henson] 2993 2994 *) SSL_CONF* functions. These provide a common framework for application 2995 configuration using configuration files or command lines. 2996 [Steve Henson] 2997 2998 *) SSL/TLS tracing code. This parses out SSL/TLS records using the 2999 message callback and prints the results. Needs compile time option 3000 "enable-ssl-trace". New options to s_client and s_server to enable 3001 tracing. 3002 [Steve Henson] 3003 3004 *) New ctrl and macro to retrieve supported points extensions. 3005 Print out extension in s_server and s_client. 3006 [Steve Henson] 3007 3008 *) New functions to retrieve certificate signature and signature 3009 OID NID. 3010 [Steve Henson] 3011 3012 *) Add functions to retrieve and manipulate the raw cipherlist sent by a 3013 client to OpenSSL. 3014 [Steve Henson] 3015 3016 *) New Suite B modes for TLS code. These use and enforce the requirements 3017 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 3018 only use Suite B curves. The Suite B modes can be set by using the 3019 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 3020 [Steve Henson] 3021 3022 *) New chain verification flags for Suite B levels of security. Check 3023 algorithms are acceptable when flags are set in X509_verify_cert. 3024 [Steve Henson] 3025 3026 *) Make tls1_check_chain return a set of flags indicating checks passed 3027 by a certificate chain. Add additional tests to handle client 3028 certificates: checks for matching certificate type and issuer name 3029 comparison. 3030 [Steve Henson] 3031 3032 *) If an attempt is made to use a signature algorithm not in the peer 3033 preference list abort the handshake. If client has no suitable 3034 signature algorithms in response to a certificate request do not 3035 use the certificate. 3036 [Steve Henson] 3037 3038 *) If server EC tmp key is not in client preference list abort handshake. 3039 [Steve Henson] 3040 3041 *) Add support for certificate stores in CERT structure. This makes it 3042 possible to have different stores per SSL structure or one store in 3043 the parent SSL_CTX. Include distinct stores for certificate chain 3044 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 3045 to build and store a certificate chain in CERT structure: returning 3046 an error if the chain cannot be built: this will allow applications 3047 to test if a chain is correctly configured. 3048 3049 Note: if the CERT based stores are not set then the parent SSL_CTX 3050 store is used to retain compatibility with existing behaviour. 3051 3052 [Steve Henson] 3053 3054 *) New function ssl_set_client_disabled to set a ciphersuite disabled 3055 mask based on the current session, check mask when sending client 3056 hello and checking the requested ciphersuite. 3057 [Steve Henson] 3058 3059 *) New ctrls to retrieve and set certificate types in a certificate 3060 request message. Print out received values in s_client. If certificate 3061 types is not set with custom values set sensible values based on 3062 supported signature algorithms. 3063 [Steve Henson] 3064 3065 *) Support for distinct client and server supported signature algorithms. 3066 [Steve Henson] 3067 3068 *) Add certificate callback. If set this is called whenever a certificate 3069 is required by client or server. An application can decide which 3070 certificate chain to present based on arbitrary criteria: for example 3071 supported signature algorithms. Add very simple example to s_server. 3072 This fixes many of the problems and restrictions of the existing client 3073 certificate callback: for example you can now clear an existing 3074 certificate and specify the whole chain. 3075 [Steve Henson] 3076 3077 *) Add new "valid_flags" field to CERT_PKEY structure which determines what 3078 the certificate can be used for (if anything). Set valid_flags field 3079 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 3080 to have similar checks in it. 3081 3082 Add new "cert_flags" field to CERT structure and include a "strict mode". 3083 This enforces some TLS certificate requirements (such as only permitting 3084 certificate signature algorithms contained in the supported algorithms 3085 extension) which some implementations ignore: this option should be used 3086 with caution as it could cause interoperability issues. 3087 [Steve Henson] 3088 3089 *) Update and tidy signature algorithm extension processing. Work out 3090 shared signature algorithms based on preferences and peer algorithms 3091 and print them out in s_client and s_server. Abort handshake if no 3092 shared signature algorithms. 3093 [Steve Henson] 3094 3095 *) Add new functions to allow customised supported signature algorithms 3096 for SSL and SSL_CTX structures. Add options to s_client and s_server 3097 to support them. 3098 [Steve Henson] 3099 3100 *) New function SSL_certs_clear() to delete all references to certificates 3101 from an SSL structure. Before this once a certificate had been added 3102 it couldn't be removed. 3103 [Steve Henson] 3104 3105 *) Integrate hostname, email address and IP address checking with certificate 3106 verification. New verify options supporting checking in openssl utility. 3107 [Steve Henson] 3108 3109 *) Fixes and wildcard matching support to hostname and email checking 3110 functions. Add manual page. 3111 [Florian Weimer (Red Hat Product Security Team)] 3112 3113 *) New functions to check a hostname email or IP address against a 3114 certificate. Add options x509 utility to print results of checks against 3115 a certificate. 3116 [Steve Henson] 3117 3118 *) Fix OCSP checking. 3119 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie] 3120 3121 *) Initial experimental support for explicitly trusted non-root CAs. 3122 OpenSSL still tries to build a complete chain to a root but if an 3123 intermediate CA has a trust setting included that is used. The first 3124 setting is used: whether to trust (e.g., -addtrust option to the x509 3125 utility) or reject. 3126 [Steve Henson] 3127 3128 *) Add -trusted_first option which attempts to find certificates in the 3129 trusted store even if an untrusted chain is also supplied. 3130 [Steve Henson] 3131 3132 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 3133 platform support for Linux and Android. 3134 [Andy Polyakov] 3135 3136 *) Support for linux-x32, ILP32 environment in x86_64 framework. 3137 [Andy Polyakov] 3138 3139 *) Experimental multi-implementation support for FIPS capable OpenSSL. 3140 When in FIPS mode the approved implementations are used as normal, 3141 when not in FIPS mode the internal unapproved versions are used instead. 3142 This means that the FIPS capable OpenSSL isn't forced to use the 3143 (often lower performance) FIPS implementations outside FIPS mode. 3144 [Steve Henson] 3145 3146 *) Transparently support X9.42 DH parameters when calling 3147 PEM_read_bio_DHparameters. This means existing applications can handle 3148 the new parameter format automatically. 3149 [Steve Henson] 3150 3151 *) Initial experimental support for X9.42 DH parameter format: mainly 3152 to support use of 'q' parameter for RFC5114 parameters. 3153 [Steve Henson] 3154 3155 *) Add DH parameters from RFC5114 including test data to dhtest. 3156 [Steve Henson] 3157 3158 *) Support for automatic EC temporary key parameter selection. If enabled 3159 the most preferred EC parameters are automatically used instead of 3160 hardcoded fixed parameters. Now a server just has to call: 3161 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 3162 support ECDH and use the most appropriate parameters. 3163 [Steve Henson] 3164 3165 *) Enhance and tidy EC curve and point format TLS extension code. Use 3166 static structures instead of allocation if default values are used. 3167 New ctrls to set curves we wish to support and to retrieve shared curves. 3168 Print out shared curves in s_server. New options to s_server and s_client 3169 to set list of supported curves. 3170 [Steve Henson] 3171 3172 *) New ctrls to retrieve supported signature algorithms and 3173 supported curve values as an array of NIDs. Extend openssl utility 3174 to print out received values. 3175 [Steve Henson] 3176 3177 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 3178 between NIDs and the more common NIST names such as "P-256". Enhance 3179 ecparam utility and ECC method to recognise the NIST names for curves. 3180 [Steve Henson] 3181 3182 *) Enhance SSL/TLS certificate chain handling to support different 3183 chains for each certificate instead of one chain in the parent SSL_CTX. 3184 [Steve Henson] 3185 3186 *) Support for fixed DH ciphersuite client authentication: where both 3187 server and client use DH certificates with common parameters. 3188 [Steve Henson] 3189 3190 *) Support for fixed DH ciphersuites: those requiring DH server 3191 certificates. 3192 [Steve Henson] 3193 3194 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of 3195 the certificate. 3196 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 3197 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 3198 X509_CINF_get_signature were reverted post internal team review. 3199 3200 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 3201 3202 *) Build fixes for the Windows and OpenVMS platforms 3203 [Matt Caswell and Richard Levitte] 3204 3205 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 3206 3207 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 3208 message can cause a segmentation fault in OpenSSL due to a NULL pointer 3209 dereference. This could lead to a Denial Of Service attack. Thanks to 3210 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 3211 (CVE-2014-3571) 3212 [Steve Henson] 3213 3214 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 3215 dtls1_buffer_record function under certain conditions. In particular this 3216 could occur if an attacker sent repeated DTLS records with the same 3217 sequence number but for the next epoch. The memory leak could be exploited 3218 by an attacker in a Denial of Service attack through memory exhaustion. 3219 Thanks to Chris Mueller for reporting this issue. 3220 (CVE-2015-0206) 3221 [Matt Caswell] 3222 3223 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 3224 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 3225 method would be set to NULL which could later result in a NULL pointer 3226 dereference. Thanks to Frank Schmirler for reporting this issue. 3227 (CVE-2014-3569) 3228 [Kurt Roeckx] 3229 3230 *) Abort handshake if server key exchange message is omitted for ephemeral 3231 ECDH ciphersuites. 3232 3233 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 3234 reporting this issue. 3235 (CVE-2014-3572) 3236 [Steve Henson] 3237 3238 *) Remove non-export ephemeral RSA code on client and server. This code 3239 violated the TLS standard by allowing the use of temporary RSA keys in 3240 non-export ciphersuites and could be used by a server to effectively 3241 downgrade the RSA key length used to a value smaller than the server 3242 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 3243 INRIA or reporting this issue. 3244 (CVE-2015-0204) 3245 [Steve Henson] 3246 3247 *) Fixed issue where DH client certificates are accepted without verification. 3248 An OpenSSL server will accept a DH certificate for client authentication 3249 without the certificate verify message. This effectively allows a client to 3250 authenticate without the use of a private key. This only affects servers 3251 which trust a client certificate authority which issues certificates 3252 containing DH keys: these are extremely rare and hardly ever encountered. 3253 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 3254 this issue. 3255 (CVE-2015-0205) 3256 [Steve Henson] 3257 3258 *) Ensure that the session ID context of an SSL is updated when its 3259 SSL_CTX is updated via SSL_set_SSL_CTX. 3260 3261 The session ID context is typically set from the parent SSL_CTX, 3262 and can vary with the CTX. 3263 [Adam Langley] 3264 3265 *) Fix various certificate fingerprint issues. 3266 3267 By using non-DER or invalid encodings outside the signed portion of a 3268 certificate the fingerprint can be changed without breaking the signature. 3269 Although no details of the signed portion of the certificate can be changed 3270 this can cause problems with some applications: e.g. those using the 3271 certificate fingerprint for blacklists. 3272 3273 1. Reject signatures with non zero unused bits. 3274 3275 If the BIT STRING containing the signature has non zero unused bits reject 3276 the signature. All current signature algorithms require zero unused bits. 3277 3278 2. Check certificate algorithm consistency. 3279 3280 Check the AlgorithmIdentifier inside TBS matches the one in the 3281 certificate signature. NB: this will result in signature failure 3282 errors for some broken certificates. 3283 3284 Thanks to Konrad Kraszewski from Google for reporting this issue. 3285 3286 3. Check DSA/ECDSA signatures use DER. 3287 3288 Re-encode DSA/ECDSA signatures and compare with the original received 3289 signature. Return an error if there is a mismatch. 3290 3291 This will reject various cases including garbage after signature 3292 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 3293 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 3294 (negative or with leading zeroes). 3295 3296 Further analysis was conducted and fixes were developed by Stephen Henson 3297 of the OpenSSL core team. 3298 3299 (CVE-2014-8275) 3300 [Steve Henson] 3301 3302 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 3303 results on some platforms, including x86_64. This bug occurs at random 3304 with a very low probability, and is not known to be exploitable in any 3305 way, though its exact impact is difficult to determine. Thanks to Pieter 3306 Wuille (Blockstream) who reported this issue and also suggested an initial 3307 fix. Further analysis was conducted by the OpenSSL development team and 3308 Adam Langley of Google. The final fix was developed by Andy Polyakov of 3309 the OpenSSL core team. 3310 (CVE-2014-3570) 3311 [Andy Polyakov] 3312 3313 *) Do not resume sessions on the server if the negotiated protocol 3314 version does not match the session's version. Resuming with a different 3315 version, while not strictly forbidden by the RFC, is of questionable 3316 sanity and breaks all known clients. 3317 [David Benjamin, Emilia Käsper] 3318 3319 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 3320 early CCS messages during renegotiation. (Note that because 3321 renegotiation is encrypted, this early CCS was not exploitable.) 3322 [Emilia Käsper] 3323 3324 *) Tighten client-side session ticket handling during renegotiation: 3325 ensure that the client only accepts a session ticket if the server sends 3326 the extension anew in the ServerHello. Previously, a TLS client would 3327 reuse the old extension state and thus accept a session ticket if one was 3328 announced in the initial ServerHello. 3329 3330 Similarly, ensure that the client requires a session ticket if one 3331 was advertised in the ServerHello. Previously, a TLS client would 3332 ignore a missing NewSessionTicket message. 3333 [Emilia Käsper] 3334 3335 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 3336 3337 *) SRTP Memory Leak. 3338 3339 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 3340 sends a carefully crafted handshake message, to cause OpenSSL to fail 3341 to free up to 64k of memory causing a memory leak. This could be 3342 exploited in a Denial Of Service attack. This issue affects OpenSSL 3343 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 3344 whether SRTP is used or configured. Implementations of OpenSSL that 3345 have been compiled with OPENSSL_NO_SRTP defined are not affected. 3346 3347 The fix was developed by the OpenSSL team. 3348 (CVE-2014-3513) 3349 [OpenSSL team] 3350 3351 *) Session Ticket Memory Leak. 3352 3353 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 3354 integrity of that ticket is first verified. In the event of a session 3355 ticket integrity check failing, OpenSSL will fail to free memory 3356 causing a memory leak. By sending a large number of invalid session 3357 tickets an attacker could exploit this issue in a Denial Of Service 3358 attack. 3359 (CVE-2014-3567) 3360 [Steve Henson] 3361 3362 *) Build option no-ssl3 is incomplete. 3363 3364 When OpenSSL is configured with "no-ssl3" as a build option, servers 3365 could accept and complete a SSL 3.0 handshake, and clients could be 3366 configured to send them. 3367 (CVE-2014-3568) 3368 [Akamai and the OpenSSL team] 3369 3370 *) Add support for TLS_FALLBACK_SCSV. 3371 Client applications doing fallback retries should call 3372 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 3373 (CVE-2014-3566) 3374 [Adam Langley, Bodo Moeller] 3375 3376 *) Add additional DigestInfo checks. 3377 3378 Re-encode DigestInto in DER and check against the original when 3379 verifying RSA signature: this will reject any improperly encoded 3380 DigestInfo structures. 3381 3382 Note: this is a precautionary measure and no attacks are currently known. 3383 3384 [Steve Henson] 3385 3386 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 3387 3388 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 3389 SRP code can be overrun an internal buffer. Add sanity check that 3390 g, A, B < N to SRP code. 3391 3392 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 3393 Group for discovering this issue. 3394 (CVE-2014-3512) 3395 [Steve Henson] 3396 3397 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 3398 TLS 1.0 instead of higher protocol versions when the ClientHello message 3399 is badly fragmented. This allows a man-in-the-middle attacker to force a 3400 downgrade to TLS 1.0 even if both the server and the client support a 3401 higher protocol version, by modifying the client's TLS records. 3402 3403 Thanks to David Benjamin and Adam Langley (Google) for discovering and 3404 researching this issue. 3405 (CVE-2014-3511) 3406 [David Benjamin] 3407 3408 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 3409 to a denial of service attack. A malicious server can crash the client 3410 with a null pointer dereference (read) by specifying an anonymous (EC)DH 3411 ciphersuite and sending carefully crafted handshake messages. 3412 3413 Thanks to Felix Gröbert (Google) for discovering and researching this 3414 issue. 3415 (CVE-2014-3510) 3416 [Emilia Käsper] 3417 3418 *) By sending carefully crafted DTLS packets an attacker could cause openssl 3419 to leak memory. This can be exploited through a Denial of Service attack. 3420 Thanks to Adam Langley for discovering and researching this issue. 3421 (CVE-2014-3507) 3422 [Adam Langley] 3423 3424 *) An attacker can force openssl to consume large amounts of memory whilst 3425 processing DTLS handshake messages. This can be exploited through a 3426 Denial of Service attack. 3427 Thanks to Adam Langley for discovering and researching this issue. 3428 (CVE-2014-3506) 3429 [Adam Langley] 3430 3431 *) An attacker can force an error condition which causes openssl to crash 3432 whilst processing DTLS packets due to memory being freed twice. This 3433 can be exploited through a Denial of Service attack. 3434 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 3435 this issue. 3436 (CVE-2014-3505) 3437 [Adam Langley] 3438 3439 *) If a multithreaded client connects to a malicious server using a resumed 3440 session and the server sends an ec point format extension it could write 3441 up to 255 bytes to freed memory. 3442 3443 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 3444 issue. 3445 (CVE-2014-3509) 3446 [Gabor Tyukasz] 3447 3448 *) A malicious server can crash an OpenSSL client with a null pointer 3449 dereference (read) by specifying an SRP ciphersuite even though it was not 3450 properly negotiated with the client. This can be exploited through a 3451 Denial of Service attack. 3452 3453 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 3454 discovering and researching this issue. 3455 (CVE-2014-5139) 3456 [Steve Henson] 3457 3458 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 3459 X509_name_oneline, X509_name_print_ex et al. to leak some information 3460 from the stack. Applications may be affected if they echo pretty printing 3461 output to the attacker. 3462 3463 Thanks to Ivan Fratric (Google) for discovering this issue. 3464 (CVE-2014-3508) 3465 [Emilia Käsper, and Steve Henson] 3466 3467 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 3468 for corner cases. (Certain input points at infinity could lead to 3469 bogus results, with non-infinity inputs mapped to infinity too.) 3470 [Bodo Moeller] 3471 3472 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 3473 3474 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 3475 handshake can force the use of weak keying material in OpenSSL 3476 SSL/TLS clients and servers. 3477 3478 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 3479 researching this issue. (CVE-2014-0224) 3480 [KIKUCHI Masashi, Steve Henson] 3481 3482 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 3483 OpenSSL DTLS client the code can be made to recurse eventually crashing 3484 in a DoS attack. 3485 3486 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 3487 (CVE-2014-0221) 3488 [Imre Rad, Steve Henson] 3489 3490 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 3491 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 3492 client or server. This is potentially exploitable to run arbitrary 3493 code on a vulnerable client or server. 3494 3495 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195) 3496 [Jüri Aedla, Steve Henson] 3497 3498 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 3499 are subject to a denial of service attack. 3500 3501 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 3502 this issue. (CVE-2014-3470) 3503 [Felix Gröbert, Ivan Fratric, Steve Henson] 3504 3505 *) Harmonize version and its documentation. -f flag is used to display 3506 compilation flags. 3507 [mancha <mancha1@zoho.com>] 3508 3509 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 3510 in i2d_ECPrivateKey. 3511 [mancha <mancha1@zoho.com>] 3512 3513 *) Fix some double frees. These are not thought to be exploitable. 3514 [mancha <mancha1@zoho.com>] 3515 3516 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 3517 3518 *) A missing bounds check in the handling of the TLS heartbeat extension 3519 can be used to reveal up to 64k of memory to a connected client or 3520 server. 3521 3522 Thanks for Neel Mehta of Google Security for discovering this bug and to 3523 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 3524 preparing the fix (CVE-2014-0160) 3525 [Adam Langley, Bodo Moeller] 3526 3527 *) Fix for the attack described in the paper "Recovering OpenSSL 3528 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 3529 by Yuval Yarom and Naomi Benger. Details can be obtained from: 3530 http://eprint.iacr.org/2014/140 3531 3532 Thanks to Yuval Yarom and Naomi Benger for discovering this 3533 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 3534 [Yuval Yarom and Naomi Benger] 3535 3536 *) TLS pad extension: draft-agl-tls-padding-03 3537 3538 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 3539 TLS client Hello record length value would otherwise be > 255 and 3540 less that 512 pad with a dummy extension containing zeroes so it 3541 is at least 512 bytes long. 3542 3543 [Adam Langley, Steve Henson] 3544 3545 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 3546 3547 *) Fix for TLS record tampering bug. A carefully crafted invalid 3548 handshake could crash OpenSSL with a NULL pointer exception. 3549 Thanks to Anton Johansson for reporting this issues. 3550 (CVE-2013-4353) 3551 3552 *) Keep original DTLS digest and encryption contexts in retransmission 3553 structures so we can use the previous session parameters if they need 3554 to be resent. (CVE-2013-6450) 3555 [Steve Henson] 3556 3557 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 3558 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 3559 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 3560 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 3561 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 3562 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 3563 [Rob Stradling, Adam Langley] 3564 3565 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 3566 3567 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 3568 supporting platforms or when small records were transferred. 3569 [Andy Polyakov, Steve Henson] 3570 3571 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 3572 3573 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 3574 3575 This addresses the flaw in CBC record processing discovered by 3576 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 3577 at: http://www.isg.rhul.ac.uk/tls/ 3578 3579 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 3580 Security Group at Royal Holloway, University of London 3581 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 3582 Emilia Käsper for the initial patch. 3583 (CVE-2013-0169) 3584 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 3585 3586 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 3587 ciphersuites which can be exploited in a denial of service attack. 3588 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 3589 and detecting this bug and to Wolfgang Ettlinger 3590 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 3591 (CVE-2012-2686) 3592 [Adam Langley] 3593 3594 *) Return an error when checking OCSP signatures when key is NULL. 3595 This fixes a DoS attack. (CVE-2013-0166) 3596 [Steve Henson] 3597 3598 *) Make openssl verify return errors. 3599 [Chris Palmer <palmer@google.com> and Ben Laurie] 3600 3601 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 3602 the right response is stapled. Also change SSL_get_certificate() 3603 so it returns the certificate actually sent. 3604 See http://rt.openssl.org/Ticket/Display.html?id=2836. 3605 [Rob Stradling <rob.stradling@comodo.com>] 3606 3607 *) Fix possible deadlock when decoding public keys. 3608 [Steve Henson] 3609 3610 *) Don't use TLS 1.0 record version number in initial client hello 3611 if renegotiating. 3612 [Steve Henson] 3613 3614 Changes between 1.0.1b and 1.0.1c [10 May 2012] 3615 3616 *) Sanity check record length before skipping explicit IV in TLS 3617 1.2, 1.1 and DTLS to fix DoS attack. 3618 3619 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 3620 fuzzing as a service testing platform. 3621 (CVE-2012-2333) 3622 [Steve Henson] 3623 3624 *) Initialise tkeylen properly when encrypting CMS messages. 3625 Thanks to Solar Designer of Openwall for reporting this issue. 3626 [Steve Henson] 3627 3628 *) In FIPS mode don't try to use composite ciphers as they are not 3629 approved. 3630 [Steve Henson] 3631 3632 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 3633 3634 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 3635 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 3636 mean any application compiled against OpenSSL 1.0.0 headers setting 3637 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 3638 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 3639 0x10000000L Any application which was previously compiled against 3640 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 3641 will need to be recompiled as a result. Letting be results in 3642 inability to disable specifically TLS 1.1 and in client context, 3643 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 3644 [Steve Henson] 3645 3646 *) In order to ensure interoperability SSL_OP_NO_protocolX does not 3647 disable just protocol X, but all protocols above X *if* there are 3648 protocols *below* X still enabled. In more practical terms it means 3649 that if application wants to disable TLS1.0 in favor of TLS1.1 and 3650 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 3651 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 3652 client side. 3653 [Andy Polyakov] 3654 3655 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 3656 3657 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 3658 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 3659 in CRYPTO_realloc_clean. 3660 3661 Thanks to Tavis Ormandy, Google Security Team, for discovering this 3662 issue and to Adam Langley <agl@chromium.org> for fixing it. 3663 (CVE-2012-2110) 3664 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 3665 3666 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 3667 [Adam Langley] 3668 3669 *) Workarounds for some broken servers that "hang" if a client hello 3670 record length exceeds 255 bytes. 3671 3672 1. Do not use record version number > TLS 1.0 in initial client 3673 hello: some (but not all) hanging servers will now work. 3674 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 3675 the number of ciphers sent in the client hello. This should be 3676 set to an even number, such as 50, for example by passing: 3677 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 3678 Most broken servers should now work. 3679 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 3680 TLS 1.2 client support entirely. 3681 [Steve Henson] 3682 3683 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 3684 [Andy Polyakov] 3685 3686 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 3687 3688 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 3689 STRING form instead of a DigestInfo. 3690 [Steve Henson] 3691 3692 *) The format used for MDC2 RSA signatures is inconsistent between EVP 3693 and the RSA_sign/RSA_verify functions. This was made more apparent when 3694 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 3695 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 3696 the correct format in RSA_verify so both forms transparently work. 3697 [Steve Henson] 3698 3699 *) Some servers which support TLS 1.0 can choke if we initially indicate 3700 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 3701 encrypted premaster secret. As a workaround use the maximum permitted 3702 client version in client hello, this should keep such servers happy 3703 and still work with previous versions of OpenSSL. 3704 [Steve Henson] 3705 3706 *) Add support for TLS/DTLS heartbeats. 3707 [Robin Seggelmann <seggelmann@fh-muenster.de>] 3708 3709 *) Add support for SCTP. 3710 [Robin Seggelmann <seggelmann@fh-muenster.de>] 3711 3712 *) Improved PRNG seeding for VOS. 3713 [Paul Green <Paul.Green@stratus.com>] 3714 3715 *) Extensive assembler packs updates, most notably: 3716 3717 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 3718 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 3719 - x86_64: bit-sliced AES implementation; 3720 - ARM: NEON support, contemporary platforms optimizations; 3721 - s390x: z196 support; 3722 - *: GHASH and GF(2^m) multiplication implementations; 3723 3724 [Andy Polyakov] 3725 3726 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 3727 (removal of unnecessary code) 3728 [Peter Sylvester <peter.sylvester@edelweb.fr>] 3729 3730 *) Add TLS key material exporter from RFC 5705. 3731 [Eric Rescorla] 3732 3733 *) Add DTLS-SRTP negotiation from RFC 5764. 3734 [Eric Rescorla] 3735 3736 *) Add Next Protocol Negotiation, 3737 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 3738 disabled with a no-npn flag to config or Configure. Code donated 3739 by Google. 3740 [Adam Langley <agl@google.com> and Ben Laurie] 3741 3742 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 3743 NIST-P256, NIST-P521, with constant-time single point multiplication on 3744 typical inputs. Compiler support for the nonstandard type __uint128_t is 3745 required to use this (present in gcc 4.4 and later, for 64-bit builds). 3746 Code made available under Apache License version 2.0. 3747 3748 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 3749 line to include this in your build of OpenSSL, and run "make depend" (or 3750 "make update"). This enables the following EC_METHODs: 3751 3752 EC_GFp_nistp224_method() 3753 EC_GFp_nistp256_method() 3754 EC_GFp_nistp521_method() 3755 3756 EC_GROUP_new_by_curve_name() will automatically use these (while 3757 EC_GROUP_new_curve_GFp() currently prefers the more flexible 3758 implementations). 3759 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)] 3760 3761 *) Use type ossl_ssize_t instead of ssize_t which isn't available on 3762 all platforms. Move ssize_t definition from e_os.h to the public 3763 header file e_os2.h as it now appears in public header file cms.h 3764 [Steve Henson] 3765 3766 *) New -sigopt option to the ca, req and x509 utilities. Additional 3767 signature parameters can be passed using this option and in 3768 particular PSS. 3769 [Steve Henson] 3770 3771 *) Add RSA PSS signing function. This will generate and set the 3772 appropriate AlgorithmIdentifiers for PSS based on those in the 3773 corresponding EVP_MD_CTX structure. No application support yet. 3774 [Steve Henson] 3775 3776 *) Support for companion algorithm specific ASN1 signing routines. 3777 New function ASN1_item_sign_ctx() signs a pre-initialised 3778 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 3779 the appropriate parameters. 3780 [Steve Henson] 3781 3782 *) Add new algorithm specific ASN1 verification initialisation function 3783 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 3784 handling will be the same no matter what EVP_PKEY_METHOD is used. 3785 Add a PSS handler to support verification of PSS signatures: checked 3786 against a number of sample certificates. 3787 [Steve Henson] 3788 3789 *) Add signature printing for PSS. Add PSS OIDs. 3790 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 3791 3792 *) Add algorithm specific signature printing. An individual ASN1 method 3793 can now print out signatures instead of the standard hex dump. 3794 3795 More complex signatures (e.g. PSS) can print out more meaningful 3796 information. Include DSA version that prints out the signature 3797 parameters r, s. 3798 [Steve Henson] 3799 3800 *) Password based recipient info support for CMS library: implementing 3801 RFC3211. 3802 [Steve Henson] 3803 3804 *) Split password based encryption into PBES2 and PBKDF2 functions. This 3805 neatly separates the code into cipher and PBE sections and is required 3806 for some algorithms that split PBES2 into separate pieces (such as 3807 password based CMS). 3808 [Steve Henson] 3809 3810 *) Session-handling fixes: 3811 - Fix handling of connections that are resuming with a session ID, 3812 but also support Session Tickets. 3813 - Fix a bug that suppressed issuing of a new ticket if the client 3814 presented a ticket with an expired session. 3815 - Try to set the ticket lifetime hint to something reasonable. 3816 - Make tickets shorter by excluding irrelevant information. 3817 - On the client side, don't ignore renewed tickets. 3818 [Adam Langley, Bodo Moeller (Google)] 3819 3820 *) Fix PSK session representation. 3821 [Bodo Moeller] 3822 3823 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 3824 3825 This work was sponsored by Intel. 3826 [Andy Polyakov] 3827 3828 *) Add GCM support to TLS library. Some custom code is needed to split 3829 the IV between the fixed (from PRF) and explicit (from TLS record) 3830 portions. This adds all GCM ciphersuites supported by RFC5288 and 3831 RFC5289. Generalise some AES* cipherstrings to include GCM and 3832 add a special AESGCM string for GCM only. 3833 [Steve Henson] 3834 3835 *) Expand range of ctrls for AES GCM. Permit setting invocation 3836 field on decrypt and retrieval of invocation field only on encrypt. 3837 [Steve Henson] 3838 3839 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 3840 As required by RFC5289 these ciphersuites cannot be used if for 3841 versions of TLS earlier than 1.2. 3842 [Steve Henson] 3843 3844 *) For FIPS capable OpenSSL interpret a NULL default public key method 3845 as unset and return the appropriate default but do *not* set the default. 3846 This means we can return the appropriate method in applications that 3847 switch between FIPS and non-FIPS modes. 3848 [Steve Henson] 3849 3850 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 3851 ENGINE is used then we cannot handle that in the FIPS module so we 3852 keep original code iff non-FIPS operations are allowed. 3853 [Steve Henson] 3854 3855 *) Add -attime option to openssl utilities. 3856 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 3857 3858 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 3859 [Steve Henson] 3860 3861 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 3862 FIPS EC methods unconditionally for now. 3863 [Steve Henson] 3864 3865 *) New build option no-ec2m to disable characteristic 2 code. 3866 [Steve Henson] 3867 3868 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 3869 all cases can be covered as some introduce binary incompatibilities. 3870 [Steve Henson] 3871 3872 *) Redirect RSA operations to FIPS module including keygen, 3873 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 3874 [Steve Henson] 3875 3876 *) Add similar low level API blocking to ciphers. 3877 [Steve Henson] 3878 3879 *) Low level digest APIs are not approved in FIPS mode: any attempt 3880 to use these will cause a fatal error. Applications that *really* want 3881 to use them can use the private_* version instead. 3882 [Steve Henson] 3883 3884 *) Redirect cipher operations to FIPS module for FIPS builds. 3885 [Steve Henson] 3886 3887 *) Redirect digest operations to FIPS module for FIPS builds. 3888 [Steve Henson] 3889 3890 *) Update build system to add "fips" flag which will link in fipscanister.o 3891 for static and shared library builds embedding a signature if needed. 3892 [Steve Henson] 3893 3894 *) Output TLS supported curves in preference order instead of numerical 3895 order. This is currently hardcoded for the highest order curves first. 3896 This should be configurable so applications can judge speed vs strength. 3897 [Steve Henson] 3898 3899 *) Add TLS v1.2 server support for client authentication. 3900 [Steve Henson] 3901 3902 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 3903 and enable MD5. 3904 [Steve Henson] 3905 3906 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 3907 FIPS modules versions. 3908 [Steve Henson] 3909 3910 *) Add TLS v1.2 client side support for client authentication. Keep cache 3911 of handshake records longer as we don't know the hash algorithm to use 3912 until after the certificate request message is received. 3913 [Steve Henson] 3914 3915 *) Initial TLS v1.2 client support. Add a default signature algorithms 3916 extension including all the algorithms we support. Parse new signature 3917 format in client key exchange. Relax some ECC signing restrictions for 3918 TLS v1.2 as indicated in RFC5246. 3919 [Steve Henson] 3920 3921 *) Add server support for TLS v1.2 signature algorithms extension. Switch 3922 to new signature format when needed using client digest preference. 3923 All server ciphersuites should now work correctly in TLS v1.2. No client 3924 support yet and no support for client certificates. 3925 [Steve Henson] 3926 3927 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 3928 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 3929 ciphersuites. At present only RSA key exchange ciphersuites work with 3930 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 3931 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 3932 and version checking. 3933 [Steve Henson] 3934 3935 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 3936 with this defined it will not be affected by any changes to ssl internal 3937 structures. Add several utility functions to allow openssl application 3938 to work with OPENSSL_NO_SSL_INTERN defined. 3939 [Steve Henson] 3940 3941 *) A long standing patch to add support for SRP from EdelWeb (Peter 3942 Sylvester and Christophe Renou) was integrated. 3943 [Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 3944 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 3945 Ben Laurie] 3946 3947 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 3948 [Steve Henson] 3949 3950 *) Permit abbreviated handshakes when renegotiating using the function 3951 SSL_renegotiate_abbreviated(). 3952 [Robin Seggelmann <seggelmann@fh-muenster.de>] 3953 3954 *) Add call to ENGINE_register_all_complete() to 3955 ENGINE_load_builtin_engines(), so some implementations get used 3956 automatically instead of needing explicit application support. 3957 [Steve Henson] 3958 3959 *) Add support for TLS key exporter as described in RFC5705. 3960 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 3961 3962 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 3963 a few changes are required: 3964 3965 Add SSL_OP_NO_TLSv1_1 flag. 3966 Add TLSv1_1 methods. 3967 Update version checking logic to handle version 1.1. 3968 Add explicit IV handling (ported from DTLS code). 3969 Add command line options to s_client/s_server. 3970 [Steve Henson] 3971 3972 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 3973 3974 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 3975 in CMS and PKCS7 code. When RSA decryption fails use a random key for 3976 content decryption and always return the same error. Note: this attack 3977 needs on average 2^20 messages so it only affects automated senders. The 3978 old behaviour can be re-enabled in the CMS code by setting the 3979 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 3980 an MMA defence is not necessary. 3981 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 3982 this issue. (CVE-2012-0884) 3983 [Steve Henson] 3984 3985 *) Fix CVE-2011-4619: make sure we really are receiving a 3986 client hello before rejecting multiple SGC restarts. Thanks to 3987 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 3988 [Steve Henson] 3989 3990 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 3991 3992 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 3993 Thanks to Antonio Martin, Enterprise Secure Access Research and 3994 Development, Cisco Systems, Inc. for discovering this bug and 3995 preparing a fix. (CVE-2012-0050) 3996 [Antonio Martin] 3997 3998 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 3999 4000 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 4001 of the Vaudenay padding oracle attack on CBC mode encryption 4002 which enables an efficient plaintext recovery attack against 4003 the OpenSSL implementation of DTLS. Their attack exploits timing 4004 differences arising during decryption processing. A research 4005 paper describing this attack can be found at: 4006 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 4007 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 4008 Security Group at Royal Holloway, University of London 4009 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 4010 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 4011 for preparing the fix. (CVE-2011-4108) 4012 [Robin Seggelmann, Michael Tuexen] 4013 4014 *) Clear bytes used for block padding of SSL 3.0 records. 4015 (CVE-2011-4576) 4016 [Adam Langley (Google)] 4017 4018 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 4019 Kadianakis <desnacked@gmail.com> for discovering this issue and 4020 Adam Langley for preparing the fix. (CVE-2011-4619) 4021 [Adam Langley (Google)] 4022 4023 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 4024 [Andrey Kulikov <amdeich@gmail.com>] 4025 4026 *) Prevent malformed RFC3779 data triggering an assertion failure. 4027 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 4028 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 4029 [Rob Austein <sra@hactrn.net>] 4030 4031 *) Improved PRNG seeding for VOS. 4032 [Paul Green <Paul.Green@stratus.com>] 4033 4034 *) Fix ssl_ciph.c set-up race. 4035 [Adam Langley (Google)] 4036 4037 *) Fix spurious failures in ecdsatest.c. 4038 [Emilia Käsper (Google)] 4039 4040 *) Fix the BIO_f_buffer() implementation (which was mixing different 4041 interpretations of the '..._len' fields). 4042 [Adam Langley (Google)] 4043 4044 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 4045 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 4046 threads won't reuse the same blinding coefficients. 4047 4048 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 4049 lock to call BN_BLINDING_invert_ex, and avoids one use of 4050 BN_BLINDING_update for each BN_BLINDING structure (previously, 4051 the last update always remained unused). 4052 [Emilia Käsper (Google)] 4053 4054 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 4055 [Bob Buckholz (Google)] 4056 4057 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 4058 4059 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 4060 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 4061 [Kaspar Brand <ossl@velox.ch>] 4062 4063 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 4064 for multi-threaded use of ECDH. (CVE-2011-3210) 4065 [Adam Langley (Google)] 4066 4067 *) Fix x509_name_ex_d2i memory leak on bad inputs. 4068 [Bodo Moeller] 4069 4070 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 4071 signature public key algorithm by using OID xref utilities instead. 4072 Before this you could only use some ECC ciphersuites with SHA1 only. 4073 [Steve Henson] 4074 4075 *) Add protection against ECDSA timing attacks as mentioned in the paper 4076 by Billy Bob Brumley and Nicola Tuveri, see: 4077 4078 http://eprint.iacr.org/2011/232.pdf 4079 4080 [Billy Bob Brumley and Nicola Tuveri] 4081 4082 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 4083 4084 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 4085 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 4086 4087 *) Fix bug in string printing code: if *any* escaping is enabled we must 4088 escape the escape character (backslash) or the resulting string is 4089 ambiguous. 4090 [Steve Henson] 4091 4092 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 4093 4094 *) Disable code workaround for ancient and obsolete Netscape browsers 4095 and servers: an attacker can use it in a ciphersuite downgrade attack. 4096 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 4097 [Steve Henson] 4098 4099 *) Fixed J-PAKE implementation error, originally discovered by 4100 Sebastien Martini, further info and confirmation from Stefan 4101 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 4102 [Ben Laurie] 4103 4104 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 4105 4106 *) Fix extension code to avoid race conditions which can result in a buffer 4107 overrun vulnerability: resumed sessions must not be modified as they can 4108 be shared by multiple threads. CVE-2010-3864 4109 [Steve Henson] 4110 4111 *) Fix WIN32 build system to correctly link an ENGINE directory into 4112 a DLL. 4113 [Steve Henson] 4114 4115 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 4116 4117 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 4118 (CVE-2010-1633) 4119 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 4120 4121 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 4122 4123 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 4124 context. The operation can be customised via the ctrl mechanism in 4125 case ENGINEs want to include additional functionality. 4126 [Steve Henson] 4127 4128 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 4129 [Steve Henson] 4130 4131 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 4132 output hashes compatible with older versions of OpenSSL. 4133 [Willy Weisz <weisz@vcpc.univie.ac.at>] 4134 4135 *) Fix compression algorithm handling: if resuming a session use the 4136 compression algorithm of the resumed session instead of determining 4137 it from client hello again. Don't allow server to change algorithm. 4138 [Steve Henson] 4139 4140 *) Add load_crls() function to apps tidying load_certs() too. Add option 4141 to verify utility to allow additional CRLs to be included. 4142 [Steve Henson] 4143 4144 *) Update OCSP request code to permit adding custom headers to the request: 4145 some responders need this. 4146 [Steve Henson] 4147 4148 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 4149 correctly. 4150 [Julia Lawall <julia@diku.dk>] 4151 4152 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 4153 needlessly dereferenced structures, used obsolete functions and 4154 didn't handle all updated verify codes correctly. 4155 [Steve Henson] 4156 4157 *) Disable MD2 in the default configuration. 4158 [Steve Henson] 4159 4160 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 4161 indicate the initial BIO being pushed or popped. This makes it possible 4162 to determine whether the BIO is the one explicitly called or as a result 4163 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 4164 it handles reference counts correctly and doesn't zero out the I/O bio 4165 when it is not being explicitly popped. WARNING: applications which 4166 included workarounds for the old buggy behaviour will need to be modified 4167 or they could free up already freed BIOs. 4168 [Steve Henson] 4169 4170 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 4171 renaming to all platforms (within the 0.9.8 branch, this was 4172 done conditionally on Netware platforms to avoid a name clash). 4173 [Guenter <lists@gknw.net>] 4174 4175 *) Add ECDHE and PSK support to DTLS. 4176 [Michael Tuexen <tuexen@fh-muenster.de>] 4177 4178 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 4179 be used on C++. 4180 [Steve Henson] 4181 4182 *) Add "missing" function EVP_MD_flags() (without this the only way to 4183 retrieve a digest flags is by accessing the structure directly. Update 4184 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 4185 or cipher is registered as in the "from" argument. Print out all 4186 registered digests in the dgst usage message instead of manually 4187 attempting to work them out. 4188 [Steve Henson] 4189 4190 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 4191 this allows the use of compression and extensions. Change default cipher 4192 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 4193 by default unless an application cipher string requests it. 4194 [Steve Henson] 4195 4196 *) Alter match criteria in PKCS12_parse(). It used to try to use local 4197 key ids to find matching certificates and keys but some PKCS#12 files 4198 don't follow the (somewhat unwritten) rules and this strategy fails. 4199 Now just gather all certificates together and the first private key 4200 then look for the first certificate that matches the key. 4201 [Steve Henson] 4202 4203 *) Support use of registered digest and cipher names for dgst and cipher 4204 commands instead of having to add each one as a special case. So now 4205 you can do: 4206 4207 openssl sha256 foo 4208 4209 as well as: 4210 4211 openssl dgst -sha256 foo 4212 4213 and this works for ENGINE based algorithms too. 4214 4215 [Steve Henson] 4216 4217 *) Update Gost ENGINE to support parameter files. 4218 [Victor B. Wagner <vitus@cryptocom.ru>] 4219 4220 *) Support GeneralizedTime in ca utility. 4221 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 4222 4223 *) Enhance the hash format used for certificate directory links. The new 4224 form uses the canonical encoding (meaning equivalent names will work 4225 even if they aren't identical) and uses SHA1 instead of MD5. This form 4226 is incompatible with the older format and as a result c_rehash should 4227 be used to rebuild symbolic links. 4228 [Steve Henson] 4229 4230 *) Make PKCS#8 the default write format for private keys, replacing the 4231 traditional format. This form is standardised, more secure and doesn't 4232 include an implicit MD5 dependency. 4233 [Steve Henson] 4234 4235 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 4236 committed to OpenSSL should pass this lot as a minimum. 4237 [Steve Henson] 4238 4239 *) Add session ticket override functionality for use by EAP-FAST. 4240 [Jouni Malinen <j@w1.fi>] 4241 4242 *) Modify HMAC functions to return a value. Since these can be implemented 4243 in an ENGINE errors can occur. 4244 [Steve Henson] 4245 4246 *) Type-checked OBJ_bsearch_ex. 4247 [Ben Laurie] 4248 4249 *) Type-checked OBJ_bsearch. Also some constification necessitated 4250 by type-checking. Still to come: TXT_DB, bsearch(?), 4251 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 4252 CONF_VALUE. 4253 [Ben Laurie] 4254 4255 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 4256 seconds to a tm structure directly, instead of going through OS 4257 specific date routines. This avoids any issues with OS routines such 4258 as the year 2038 bug. New *_adj() functions for ASN1 time structures 4259 and X509_time_adj_ex() to cover the extended range. The existing 4260 X509_time_adj() is still usable and will no longer have any date issues. 4261 [Steve Henson] 4262 4263 *) Delta CRL support. New use deltas option which will attempt to locate 4264 and search any appropriate delta CRLs available. 4265 4266 This work was sponsored by Google. 4267 [Steve Henson] 4268 4269 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 4270 code and add additional score elements. Validate alternate CRL paths 4271 as part of the CRL checking and indicate a new error "CRL path validation 4272 error" in this case. Applications wanting additional details can use 4273 the verify callback and check the new "parent" field. If this is not 4274 NULL CRL path validation is taking place. Existing applications won't 4275 see this because it requires extended CRL support which is off by 4276 default. 4277 4278 This work was sponsored by Google. 4279 [Steve Henson] 4280 4281 *) Support for freshest CRL extension. 4282 4283 This work was sponsored by Google. 4284 [Steve Henson] 4285 4286 *) Initial indirect CRL support. Currently only supported in the CRLs 4287 passed directly and not via lookup. Process certificate issuer 4288 CRL entry extension and lookup CRL entries by bother issuer name 4289 and serial number. Check and process CRL issuer entry in IDP extension. 4290 4291 This work was sponsored by Google. 4292 [Steve Henson] 4293 4294 *) Add support for distinct certificate and CRL paths. The CRL issuer 4295 certificate is validated separately in this case. Only enabled if 4296 an extended CRL support flag is set: this flag will enable additional 4297 CRL functionality in future. 4298 4299 This work was sponsored by Google. 4300 [Steve Henson] 4301 4302 *) Add support for policy mappings extension. 4303 4304 This work was sponsored by Google. 4305 [Steve Henson] 4306 4307 *) Fixes to pathlength constraint, self issued certificate handling, 4308 policy processing to align with RFC3280 and PKITS tests. 4309 4310 This work was sponsored by Google. 4311 [Steve Henson] 4312 4313 *) Support for name constraints certificate extension. DN, email, DNS 4314 and URI types are currently supported. 4315 4316 This work was sponsored by Google. 4317 [Steve Henson] 4318 4319 *) To cater for systems that provide a pointer-based thread ID rather 4320 than numeric, deprecate the current numeric thread ID mechanism and 4321 replace it with a structure and associated callback type. This 4322 mechanism allows a numeric "hash" to be extracted from a thread ID in 4323 either case, and on platforms where pointers are larger than 'long', 4324 mixing is done to help ensure the numeric 'hash' is usable even if it 4325 can't be guaranteed unique. The default mechanism is to use "&errno" 4326 as a pointer-based thread ID to distinguish between threads. 4327 4328 Applications that want to provide their own thread IDs should now use 4329 CRYPTO_THREADID_set_callback() to register a callback that will call 4330 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 4331 4332 Note that ERR_remove_state() is now deprecated, because it is tied 4333 to the assumption that thread IDs are numeric. ERR_remove_state(0) 4334 to free the current thread's error state should be replaced by 4335 ERR_remove_thread_state(NULL). 4336 4337 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 4338 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 4339 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 4340 application was previously providing a numeric thread callback that 4341 was inappropriate for distinguishing threads, then uniqueness might 4342 have been obtained with &errno that happened immediately in the 4343 intermediate development versions of OpenSSL; this is no longer the 4344 case, the numeric thread callback will now override the automatic use 4345 of &errno.) 4346 [Geoff Thorpe, with help from Bodo Moeller] 4347 4348 *) Initial support for different CRL issuing certificates. This covers a 4349 simple case where the self issued certificates in the chain exist and 4350 the real CRL issuer is higher in the existing chain. 4351 4352 This work was sponsored by Google. 4353 [Steve Henson] 4354 4355 *) Removed effectively defunct crypto/store from the build. 4356 [Ben Laurie] 4357 4358 *) Revamp of STACK to provide stronger type-checking. Still to come: 4359 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 4360 ASN1_STRING, CONF_VALUE. 4361 [Ben Laurie] 4362 4363 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 4364 RAM on SSL connections. This option can save about 34k per idle SSL. 4365 [Nick Mathewson] 4366 4367 *) Revamp of LHASH to provide stronger type-checking. Still to come: 4368 STACK, TXT_DB, bsearch, qsort. 4369 [Ben Laurie] 4370 4371 *) Initial support for Cryptographic Message Syntax (aka CMS) based 4372 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 4373 support for data, signedData, compressedData, digestedData and 4374 encryptedData, envelopedData types included. Scripts to check against 4375 RFC4134 examples draft and interop and consistency checks of many 4376 content types and variants. 4377 [Steve Henson] 4378 4379 *) Add options to enc utility to support use of zlib compression BIO. 4380 [Steve Henson] 4381 4382 *) Extend mk1mf to support importing of options and assembly language 4383 files from Configure script, currently only included in VC-WIN32. 4384 The assembly language rules can now optionally generate the source 4385 files from the associated perl scripts. 4386 [Steve Henson] 4387 4388 *) Implement remaining functionality needed to support GOST ciphersuites. 4389 Interop testing has been performed using CryptoPro implementations. 4390 [Victor B. Wagner <vitus@cryptocom.ru>] 4391 4392 *) s390x assembler pack. 4393 [Andy Polyakov] 4394 4395 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 4396 "family." 4397 [Andy Polyakov] 4398 4399 *) Implement Opaque PRF Input TLS extension as specified in 4400 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 4401 official specification yet and no extension type assignment by 4402 IANA exists, this extension (for now) will have to be explicitly 4403 enabled when building OpenSSL by providing the extension number 4404 to use. For example, specify an option 4405 4406 -DTLSEXT_TYPE_opaque_prf_input=0x9527 4407 4408 to the "config" or "Configure" script to enable the extension, 4409 assuming extension number 0x9527 (which is a completely arbitrary 4410 and unofficial assignment based on the MD5 hash of the Internet 4411 Draft). Note that by doing so, you potentially lose 4412 interoperability with other TLS implementations since these might 4413 be using the same extension number for other purposes. 4414 4415 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 4416 opaque PRF input value to use in the handshake. This will create 4417 an internal copy of the length-'len' string at 'src', and will 4418 return non-zero for success. 4419 4420 To get more control and flexibility, provide a callback function 4421 by using 4422 4423 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 4424 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 4425 4426 where 4427 4428 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 4429 void *arg; 4430 4431 Callback function 'cb' will be called in handshakes, and is 4432 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 4433 Argument 'arg' is for application purposes (the value as given to 4434 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 4435 be provided to the callback function). The callback function 4436 has to return non-zero to report success: usually 1 to use opaque 4437 PRF input just if possible, or 2 to enforce use of the opaque PRF 4438 input. In the latter case, the library will abort the handshake 4439 if opaque PRF input is not successfully negotiated. 4440 4441 Arguments 'peerinput' and 'len' given to the callback function 4442 will always be NULL and 0 in the case of a client. A server will 4443 see the client's opaque PRF input through these variables if 4444 available (NULL and 0 otherwise). Note that if the server 4445 provides an opaque PRF input, the length must be the same as the 4446 length of the client's opaque PRF input. 4447 4448 Note that the callback function will only be called when creating 4449 a new session (session resumption can resume whatever was 4450 previously negotiated), and will not be called in SSL 2.0 4451 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 4452 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 4453 for applications that need to enforce opaque PRF input. 4454 4455 [Bodo Moeller] 4456 4457 *) Update ssl code to support digests other than SHA1+MD5 for handshake 4458 MAC. 4459 4460 [Victor B. Wagner <vitus@cryptocom.ru>] 4461 4462 *) Add RFC4507 support to OpenSSL. This includes the corrections in 4463 RFC4507bis. The encrypted ticket format is an encrypted encoded 4464 SSL_SESSION structure, that way new session features are automatically 4465 supported. 4466 4467 If a client application caches session in an SSL_SESSION structure 4468 support is transparent because tickets are now stored in the encoded 4469 SSL_SESSION. 4470 4471 The SSL_CTX structure automatically generates keys for ticket 4472 protection in servers so again support should be possible 4473 with no application modification. 4474 4475 If a client or server wishes to disable RFC4507 support then the option 4476 SSL_OP_NO_TICKET can be set. 4477 4478 Add a TLS extension debugging callback to allow the contents of any client 4479 or server extensions to be examined. 4480 4481 This work was sponsored by Google. 4482 [Steve Henson] 4483 4484 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 4485 OpenSSL should now compile cleanly on gcc 4.2 4486 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 4487 4488 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 4489 support including streaming MAC support: this is required for GOST 4490 ciphersuite support. 4491 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 4492 4493 *) Add option -stream to use PKCS#7 streaming in smime utility. New 4494 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 4495 to output in BER and PEM format. 4496 [Steve Henson] 4497 4498 *) Experimental support for use of HMAC via EVP_PKEY interface. This 4499 allows HMAC to be handled via the EVP_DigestSign*() interface. The 4500 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 4501 ENGINE support for HMAC keys which are unextractable. New -mac and 4502 -macopt options to dgst utility. 4503 [Steve Henson] 4504 4505 *) New option -sigopt to dgst utility. Update dgst to use 4506 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 4507 alternative signing parameters such as X9.31 or PSS in the dgst 4508 utility. 4509 [Steve Henson] 4510 4511 *) Change ssl_cipher_apply_rule(), the internal function that does 4512 the work each time a ciphersuite string requests enabling 4513 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 4514 removing ("!foo+bar") a class of ciphersuites: Now it maintains 4515 the order of disabled ciphersuites such that those ciphersuites 4516 that most recently went from enabled to disabled not only stay 4517 in order with respect to each other, but also have higher priority 4518 than other disabled ciphersuites the next time ciphersuites are 4519 enabled again. 4520 4521 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 4522 the same ciphersuites as with "HIGH" alone, but in a specific 4523 order where the PSK ciphersuites come first (since they are the 4524 most recently disabled ciphersuites when "HIGH" is parsed). 4525 4526 Also, change ssl_create_cipher_list() (using this new 4527 functionality) such that between otherwise identical 4528 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 4529 the default order. 4530 [Bodo Moeller] 4531 4532 *) Change ssl_create_cipher_list() so that it automatically 4533 arranges the ciphersuites in reasonable order before starting 4534 to process the rule string. Thus, the definition for "DEFAULT" 4535 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 4536 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 4537 This makes it much easier to arrive at a reasonable default order 4538 in applications for which anonymous ciphers are OK (meaning 4539 that you can't actually use DEFAULT). 4540 [Bodo Moeller; suggested by Victor Duchovni] 4541 4542 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 4543 processing) into multiple integers instead of setting 4544 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 4545 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 4546 (These masks as well as the individual bit definitions are hidden 4547 away into the non-exported interface ssl/ssl_locl.h, so this 4548 change to the definition of the SSL_CIPHER structure shouldn't 4549 affect applications.) This give us more bits for each of these 4550 categories, so there is no longer a need to coagulate AES128 and 4551 AES256 into a single algorithm bit, and to coagulate Camellia128 4552 and Camellia256 into a single algorithm bit, which has led to all 4553 kinds of kludges. 4554 4555 Thus, among other things, the kludge introduced in 0.9.7m and 4556 0.9.8e for masking out AES256 independently of AES128 or masking 4557 out Camellia256 independently of AES256 is not needed here in 0.9.9. 4558 4559 With the change, we also introduce new ciphersuite aliases that 4560 so far were missing: "AES128", "AES256", "CAMELLIA128", and 4561 "CAMELLIA256". 4562 [Bodo Moeller] 4563 4564 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 4565 Use the leftmost N bytes of the signature input if the input is 4566 larger than the prime q (with N being the size in bytes of q). 4567 [Nils Larsch] 4568 4569 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 4570 it yet and it is largely untested. 4571 [Steve Henson] 4572 4573 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 4574 [Nils Larsch] 4575 4576 *) Initial incomplete changes to avoid need for function casts in OpenSSL 4577 some compilers (gcc 4.2 and later) reject their use. Safestack is 4578 reimplemented. Update ASN1 to avoid use of legacy functions. 4579 [Steve Henson] 4580 4581 *) Win32/64 targets are linked with Winsock2. 4582 [Andy Polyakov] 4583 4584 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 4585 to external functions. This can be used to increase CRL handling 4586 efficiency especially when CRLs are very large by (for example) storing 4587 the CRL revoked certificates in a database. 4588 [Steve Henson] 4589 4590 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 4591 new CRLs added to a directory can be used. New command line option 4592 -verify_return_error to s_client and s_server. This causes real errors 4593 to be returned by the verify callback instead of carrying on no matter 4594 what. This reflects the way a "real world" verify callback would behave. 4595 [Steve Henson] 4596 4597 *) GOST engine, supporting several GOST algorithms and public key formats. 4598 Kindly donated by Cryptocom. 4599 [Cryptocom] 4600 4601 *) Partial support for Issuing Distribution Point CRL extension. CRLs 4602 partitioned by DP are handled but no indirect CRL or reason partitioning 4603 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 4604 selected via a scoring technique which handles IDP and AKID in CRLs. 4605 [Steve Henson] 4606 4607 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 4608 will ultimately be used for all verify operations: this will remove the 4609 X509_STORE dependency on certificate verification and allow alternative 4610 lookup methods. X509_STORE based implementations of these two callbacks. 4611 [Steve Henson] 4612 4613 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 4614 Modify get_crl() to find a valid (unexpired) CRL if possible. 4615 [Steve Henson] 4616 4617 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 4618 this would be called X509_CRL_cmp() but that name is already used by 4619 a function that just compares CRL issuer names. Cache several CRL 4620 extensions in X509_CRL structure and cache CRLDP in X509. 4621 [Steve Henson] 4622 4623 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 4624 this maps equivalent X509_NAME structures into a consistent structure. 4625 Name comparison can then be performed rapidly using memcmp(). 4626 [Steve Henson] 4627 4628 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 4629 utility. 4630 [Steve Henson] 4631 4632 *) Allow digests to supply their own micalg string for S/MIME type using 4633 the ctrl EVP_MD_CTRL_MICALG. 4634 [Steve Henson] 4635 4636 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 4637 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 4638 ctrl. It can then customise the structure before and/or after signing 4639 if necessary. 4640 [Steve Henson] 4641 4642 *) New function OBJ_add_sigid() to allow application defined signature OIDs 4643 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 4644 to free up any added signature OIDs. 4645 [Steve Henson] 4646 4647 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 4648 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 4649 digest and cipher tables. New options added to openssl utility: 4650 list-message-digest-algorithms and list-cipher-algorithms. 4651 [Steve Henson] 4652 4653 *) Change the array representation of binary polynomials: the list 4654 of degrees of non-zero coefficients is now terminated with -1. 4655 Previously it was terminated with 0, which was also part of the 4656 value; thus, the array representation was not applicable to 4657 polynomials where t^0 has coefficient zero. This change makes 4658 the array representation useful in a more general context. 4659 [Douglas Stebila] 4660 4661 *) Various modifications and fixes to SSL/TLS cipher string 4662 handling. For ECC, the code now distinguishes between fixed ECDH 4663 with RSA certificates on the one hand and with ECDSA certificates 4664 on the other hand, since these are separate ciphersuites. The 4665 unused code for Fortezza ciphersuites has been removed. 4666 4667 For consistency with EDH, ephemeral ECDH is now called "EECDH" 4668 (not "ECDHE"). For consistency with the code for DH 4669 certificates, use of ECDH certificates is now considered ECDH 4670 authentication, not RSA or ECDSA authentication (the latter is 4671 merely the CA's signing algorithm and not actively used in the 4672 protocol). 4673 4674 The temporary ciphersuite alias "ECCdraft" is no longer 4675 available, and ECC ciphersuites are no longer excluded from "ALL" 4676 and "DEFAULT". The following aliases now exist for RFC 4492 4677 ciphersuites, most of these by analogy with the DH case: 4678 4679 kECDHr - ECDH cert, signed with RSA 4680 kECDHe - ECDH cert, signed with ECDSA 4681 kECDH - ECDH cert (signed with either RSA or ECDSA) 4682 kEECDH - ephemeral ECDH 4683 ECDH - ECDH cert or ephemeral ECDH 4684 4685 aECDH - ECDH cert 4686 aECDSA - ECDSA cert 4687 ECDSA - ECDSA cert 4688 4689 AECDH - anonymous ECDH 4690 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 4691 4692 [Bodo Moeller] 4693 4694 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 4695 Use correct micalg parameters depending on digest(s) in signed message. 4696 [Steve Henson] 4697 4698 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 4699 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 4700 [Steve Henson] 4701 4702 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 4703 an engine to register a method. Add ENGINE lookups for methods and 4704 functional reference processing. 4705 [Steve Henson] 4706 4707 *) New functions EVP_Digest{Sign,Verify)*. These are enhanced versions of 4708 EVP_{Sign,Verify}* which allow an application to customise the signature 4709 process. 4710 [Steve Henson] 4711 4712 *) New -resign option to smime utility. This adds one or more signers 4713 to an existing PKCS#7 signedData structure. Also -md option to use an 4714 alternative message digest algorithm for signing. 4715 [Steve Henson] 4716 4717 *) Tidy up PKCS#7 routines and add new functions to make it easier to 4718 create PKCS7 structures containing multiple signers. Update smime 4719 application to support multiple signers. 4720 [Steve Henson] 4721 4722 *) New -macalg option to pkcs12 utility to allow setting of an alternative 4723 digest MAC. 4724 [Steve Henson] 4725 4726 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 4727 Reorganize PBE internals to lookup from a static table using NIDs, 4728 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 4729 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 4730 PRF which will be automatically used with PBES2. 4731 [Steve Henson] 4732 4733 *) Replace the algorithm specific calls to generate keys in "req" with the 4734 new API. 4735 [Steve Henson] 4736 4737 *) Update PKCS#7 enveloped data routines to use new API. This is now 4738 supported by any public key method supporting the encrypt operation. A 4739 ctrl is added to allow the public key algorithm to examine or modify 4740 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 4741 a no op. 4742 [Steve Henson] 4743 4744 *) Add a ctrl to asn1 method to allow a public key algorithm to express 4745 a default digest type to use. In most cases this will be SHA1 but some 4746 algorithms (such as GOST) need to specify an alternative digest. The 4747 return value indicates how strong the preference is 1 means optional and 4748 2 is mandatory (that is it is the only supported type). Modify 4749 ASN1_item_sign() to accept a NULL digest argument to indicate it should 4750 use the default md. Update openssl utilities to use the default digest 4751 type for signing if it is not explicitly indicated. 4752 [Steve Henson] 4753 4754 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 4755 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 4756 signing method from the key type. This effectively removes the link 4757 between digests and public key types. 4758 [Steve Henson] 4759 4760 *) Add an OID cross reference table and utility functions. Its purpose is to 4761 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 4762 rsaEncryption. This will allow some of the algorithm specific hackery 4763 needed to use the correct OID to be removed. 4764 [Steve Henson] 4765 4766 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 4767 structures for PKCS7_sign(). They are now set up by the relevant public 4768 key ASN1 method. 4769 [Steve Henson] 4770 4771 *) Add provisional EC pkey method with support for ECDSA and ECDH. 4772 [Steve Henson] 4773 4774 *) Add support for key derivation (agreement) in the API, DH method and 4775 pkeyutl. 4776 [Steve Henson] 4777 4778 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 4779 public and private key formats. As a side effect these add additional 4780 command line functionality not previously available: DSA signatures can be 4781 generated and verified using pkeyutl and DH key support and generation in 4782 pkey, genpkey. 4783 [Steve Henson] 4784 4785 *) BeOS support. 4786 [Oliver Tappe <zooey@hirschkaefer.de>] 4787 4788 *) New make target "install_html_docs" installs HTML renditions of the 4789 manual pages. 4790 [Oliver Tappe <zooey@hirschkaefer.de>] 4791 4792 *) New utility "genpkey" this is analogous to "genrsa" etc except it can 4793 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 4794 support key and parameter generation and add initial key generation 4795 functionality for RSA. 4796 [Steve Henson] 4797 4798 *) Add functions for main EVP_PKEY_method operations. The undocumented 4799 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 4800 EVP_PKEY_{encrypt,decrypt}_old. 4801 [Steve Henson] 4802 4803 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 4804 key API, doesn't do much yet. 4805 [Steve Henson] 4806 4807 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 4808 public key algorithms. New option to openssl utility: 4809 "list-public-key-algorithms" to print out info. 4810 [Steve Henson] 4811 4812 *) Implement the Supported Elliptic Curves Extension for 4813 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 4814 [Douglas Stebila] 4815 4816 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 4817 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 4818 [Steve Henson] 4819 4820 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 4821 utilities such as rsa, dsa, dsaparam etc except they process any key 4822 type. 4823 [Steve Henson] 4824 4825 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 4826 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 4827 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 4828 structure. 4829 [Steve Henson] 4830 4831 *) Initial support for pluggable public key ASN1. 4832 De-spaghettify the public key ASN1 handling. Move public and private 4833 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 4834 algorithm specific handling to a single module within the relevant 4835 algorithm directory. Add functions to allow (near) opaque processing 4836 of public and private key structures. 4837 [Steve Henson] 4838 4839 *) Implement the Supported Point Formats Extension for 4840 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 4841 [Douglas Stebila] 4842 4843 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 4844 for the psk identity [hint] and the psk callback functions to the 4845 SSL_SESSION, SSL and SSL_CTX structure. 4846 4847 New ciphersuites: 4848 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 4849 PSK-AES256-CBC-SHA 4850 4851 New functions: 4852 SSL_CTX_use_psk_identity_hint 4853 SSL_get_psk_identity_hint 4854 SSL_get_psk_identity 4855 SSL_use_psk_identity_hint 4856 4857 [Mika Kousa and Pasi Eronen of Nokia Corporation] 4858 4859 *) Add RFC 3161 compliant time stamp request creation, response generation 4860 and response verification functionality. 4861 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project] 4862 4863 *) Add initial support for TLS extensions, specifically for the server_name 4864 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 4865 have new members for a host name. The SSL data structure has an 4866 additional member SSL_CTX *initial_ctx so that new sessions can be 4867 stored in that context to allow for session resumption, even after the 4868 SSL has been switched to a new SSL_CTX in reaction to a client's 4869 server_name extension. 4870 4871 New functions (subject to change): 4872 4873 SSL_get_servername() 4874 SSL_get_servername_type() 4875 SSL_set_SSL_CTX() 4876 4877 New CTRL codes and macros (subject to change): 4878 4879 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 4880 - SSL_CTX_set_tlsext_servername_callback() 4881 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 4882 - SSL_CTX_set_tlsext_servername_arg() 4883 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 4884 4885 openssl s_client has a new '-servername ...' option. 4886 4887 openssl s_server has new options '-servername_host ...', '-cert2 ...', 4888 '-key2 ...', '-servername_fatal' (subject to change). This allows 4889 testing the HostName extension for a specific single host name ('-cert' 4890 and '-key' remain fallbacks for handshakes without HostName 4891 negotiation). If the unrecognized_name alert has to be sent, this by 4892 default is a warning; it becomes fatal with the '-servername_fatal' 4893 option. 4894 4895 [Peter Sylvester, Remy Allais, Christophe Renou] 4896 4897 *) Whirlpool hash implementation is added. 4898 [Andy Polyakov] 4899 4900 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 4901 bn(64,32). Because of instruction set limitations it doesn't have 4902 any negative impact on performance. This was done mostly in order 4903 to make it possible to share assembler modules, such as bn_mul_mont 4904 implementations, between 32- and 64-bit builds without hassle. 4905 [Andy Polyakov] 4906 4907 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 4908 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 4909 macro. 4910 [Bodo Moeller] 4911 4912 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 4913 dedicated Montgomery multiplication procedure, is introduced. 4914 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 4915 "64-bit" performance on certain 32-bit targets. 4916 [Andy Polyakov] 4917 4918 *) New option SSL_OP_NO_COMP to disable use of compression selectively 4919 in SSL structures. New SSL ctrl to set maximum send fragment size. 4920 Save memory by setting the I/O buffer sizes dynamically instead of 4921 using the maximum available value. 4922 [Steve Henson] 4923 4924 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 4925 in addition to the text details. 4926 [Bodo Moeller] 4927 4928 *) Very, very preliminary EXPERIMENTAL support for printing of general 4929 ASN1 structures. This currently produces rather ugly output and doesn't 4930 handle several customised structures at all. 4931 [Steve Henson] 4932 4933 *) Integrated support for PVK file format and some related formats such 4934 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 4935 these in the 'rsa' and 'dsa' utilities. 4936 [Steve Henson] 4937 4938 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 4939 [Steve Henson] 4940 4941 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 4942 place for the (very old) "NETSCAPE" format certificates which are now 4943 handled using new ASN1 code equivalents. 4944 [Steve Henson] 4945 4946 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 4947 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 4948 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 4949 [Nils Larsch] 4950 4951 *) Modify CRL distribution points extension code to print out previously 4952 unsupported fields. Enhance extension setting code to allow setting of 4953 all fields. 4954 [Steve Henson] 4955 4956 *) Add print and set support for Issuing Distribution Point CRL extension. 4957 [Steve Henson] 4958 4959 *) Change 'Configure' script to enable Camellia by default. 4960 [NTT] 4961 4962 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 4963 4964 *) When rejecting SSL/TLS records due to an incorrect version number, never 4965 update s->server with a new major version number. As of 4966 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 4967 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 4968 the previous behavior could result in a read attempt at NULL when 4969 receiving specific incorrect SSL/TLS records once record payload 4970 protection is active. (CVE-2010-0740) 4971 [Bodo Moeller, Adam Langley <agl@chromium.org>] 4972 4973 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 4974 could be crashed if the relevant tables were not present (e.g. chrooted). 4975 [Tomas Hoger <thoger@redhat.com>] 4976 4977 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 4978 4979 *) Always check bn_wexpand() return values for failure. (CVE-2009-3245) 4980 [Martin Olsson, Neel Mehta] 4981 4982 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 4983 accommodate for stack sorting, always a write lock!). 4984 [Bodo Moeller] 4985 4986 *) On some versions of WIN32 Heap32Next is very slow. This can cause 4987 excessive delays in the RAND_poll(): over a minute. As a workaround 4988 include a time check in the inner Heap32Next loop too. 4989 [Steve Henson] 4990 4991 *) The code that handled flushing of data in SSL/TLS originally used the 4992 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 4993 the problem outlined in PR#1949. The fix suggested there however can 4994 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 4995 of Apache). So instead simplify the code to flush unconditionally. 4996 This should be fine since flushing with no data to flush is a no op. 4997 [Steve Henson] 4998 4999 *) Handle TLS versions 2.0 and later properly and correctly use the 5000 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 5001 off ancient servers have a habit of sticking around for a while... 5002 [Steve Henson] 5003 5004 *) Modify compression code so it frees up structures without using the 5005 ex_data callbacks. This works around a problem where some applications 5006 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 5007 restarting) then use compression (e.g. SSL with compression) later. 5008 This results in significant per-connection memory leaks and 5009 has caused some security issues including CVE-2008-1678 and 5010 CVE-2009-4355. 5011 [Steve Henson] 5012 5013 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 5014 change when encrypting or decrypting. 5015 [Bodo Moeller] 5016 5017 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 5018 connect and renegotiate with servers which do not support RI. 5019 Until RI is more widely deployed this option is enabled by default. 5020 [Steve Henson] 5021 5022 *) Add "missing" ssl ctrls to clear options and mode. 5023 [Steve Henson] 5024 5025 *) If client attempts to renegotiate and doesn't support RI respond with 5026 a no_renegotiation alert as required by RFC5746. Some renegotiating 5027 TLS clients will continue a connection gracefully when they receive 5028 the alert. Unfortunately OpenSSL mishandled this alert and would hang 5029 waiting for a server hello which it will never receive. Now we treat a 5030 received no_renegotiation alert as a fatal error. This is because 5031 applications requesting a renegotiation might well expect it to succeed 5032 and would have no code in place to handle the server denying it so the 5033 only safe thing to do is to terminate the connection. 5034 [Steve Henson] 5035 5036 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 5037 peer supports secure renegotiation and 0 otherwise. Print out peer 5038 renegotiation support in s_client/s_server. 5039 [Steve Henson] 5040 5041 *) Replace the highly broken and deprecated SPKAC certification method with 5042 the updated NID creation version. This should correctly handle UTF8. 5043 [Steve Henson] 5044 5045 *) Implement RFC5746. Re-enable renegotiation but require the extension 5046 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 5047 turns out to be a bad idea. It has been replaced by 5048 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 5049 SSL_CTX_set_options(). This is really not recommended unless you 5050 know what you are doing. 5051 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 5052 5053 *) Fixes to stateless session resumption handling. Use initial_ctx when 5054 issuing and attempting to decrypt tickets in case it has changed during 5055 servername handling. Use a non-zero length session ID when attempting 5056 stateless session resumption: this makes it possible to determine if 5057 a resumption has occurred immediately after receiving server hello 5058 (several places in OpenSSL subtly assume this) instead of later in 5059 the handshake. 5060 [Steve Henson] 5061 5062 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 5063 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 5064 fixes for a few places where the return code is not checked 5065 correctly. 5066 [Julia Lawall <julia@diku.dk>] 5067 5068 *) Add --strict-warnings option to Configure script to include devteam 5069 warnings in other configurations. 5070 [Steve Henson] 5071 5072 *) Add support for --libdir option and LIBDIR variable in makefiles. This 5073 makes it possible to install openssl libraries in locations which 5074 have names other than "lib", for example "/usr/lib64" which some 5075 systems need. 5076 [Steve Henson, based on patch from Jeremy Utley] 5077 5078 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 5079 X690 8.9.12 and can produce some misleading textual output of OIDs. 5080 [Steve Henson, reported by Dan Kaminsky] 5081 5082 *) Delete MD2 from algorithm tables. This follows the recommendation in 5083 several standards that it is not used in new applications due to 5084 several cryptographic weaknesses. For binary compatibility reasons 5085 the MD2 API is still compiled in by default. 5086 [Steve Henson] 5087 5088 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 5089 and restored. 5090 [Steve Henson] 5091 5092 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 5093 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 5094 clash. 5095 [Guenter <lists@gknw.net>] 5096 5097 *) Fix the server certificate chain building code to use X509_verify_cert(), 5098 it used to have an ad-hoc builder which was unable to cope with anything 5099 other than a simple chain. 5100 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 5101 5102 *) Don't check self signed certificate signatures in X509_verify_cert() 5103 by default (a flag can override this): it just wastes time without 5104 adding any security. As a useful side effect self signed root CAs 5105 with non-FIPS digests are now usable in FIPS mode. 5106 [Steve Henson] 5107 5108 *) In dtls1_process_out_of_seq_message() the check if the current message 5109 is already buffered was missing. For every new message was memory 5110 allocated, allowing an attacker to perform an denial of service attack 5111 with sending out of seq handshake messages until there is no memory 5112 left. Additionally every future message was buffered, even if the 5113 sequence number made no sense and would be part of another handshake. 5114 So only messages with sequence numbers less than 10 in advance will be 5115 buffered. (CVE-2009-1378) 5116 [Robin Seggelmann, discovered by Daniel Mentz] 5117 5118 *) Records are buffered if they arrive with a future epoch to be 5119 processed after finishing the corresponding handshake. There is 5120 currently no limitation to this buffer allowing an attacker to perform 5121 a DOS attack with sending records with future epochs until there is no 5122 memory left. This patch adds the pqueue_size() function to determine 5123 the size of a buffer and limits the record buffer to 100 entries. 5124 (CVE-2009-1377) 5125 [Robin Seggelmann, discovered by Daniel Mentz] 5126 5127 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 5128 parent structure is freed. (CVE-2009-1379) 5129 [Daniel Mentz] 5130 5131 *) Handle non-blocking I/O properly in SSL_shutdown() call. 5132 [Darryl Miles <darryl-mailinglists@netbauds.net>] 5133 5134 *) Add 2.5.4.* OIDs 5135 [Ilya O. <vrghost@gmail.com>] 5136 5137 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 5138 5139 *) Disable renegotiation completely - this fixes a severe security 5140 problem (CVE-2009-3555) at the cost of breaking all 5141 renegotiation. Renegotiation can be re-enabled by setting 5142 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 5143 run-time. This is really not recommended unless you know what 5144 you're doing. 5145 [Ben Laurie] 5146 5147 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 5148 5149 *) Don't set val to NULL when freeing up structures, it is freed up by 5150 underlying code. If sizeof(void *) > sizeof(long) this can result in 5151 zeroing past the valid field. (CVE-2009-0789) 5152 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 5153 5154 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 5155 checked correctly. This would allow some invalid signed attributes to 5156 appear to verify correctly. (CVE-2009-0591) 5157 [Ivan Nestlerode <inestlerode@us.ibm.com>] 5158 5159 *) Reject UniversalString and BMPString types with invalid lengths. This 5160 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 5161 a legal length. (CVE-2009-0590) 5162 [Steve Henson] 5163 5164 *) Set S/MIME signing as the default purpose rather than setting it 5165 unconditionally. This allows applications to override it at the store 5166 level. 5167 [Steve Henson] 5168 5169 *) Permit restricted recursion of ASN1 strings. This is needed in practice 5170 to handle some structures. 5171 [Steve Henson] 5172 5173 *) Improve efficiency of mem_gets: don't search whole buffer each time 5174 for a '\n' 5175 [Jeremy Shapiro <jnshapir@us.ibm.com>] 5176 5177 *) New -hex option for openssl rand. 5178 [Matthieu Herrb] 5179 5180 *) Print out UTF8String and NumericString when parsing ASN1. 5181 [Steve Henson] 5182 5183 *) Support NumericString type for name components. 5184 [Steve Henson] 5185 5186 *) Allow CC in the environment to override the automatically chosen 5187 compiler. Note that nothing is done to ensure flags work with the 5188 chosen compiler. 5189 [Ben Laurie] 5190 5191 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 5192 5193 *) Properly check EVP_VerifyFinal() and similar return values 5194 (CVE-2008-5077). 5195 [Ben Laurie, Bodo Moeller, Google Security Team] 5196 5197 *) Enable TLS extensions by default. 5198 [Ben Laurie] 5199 5200 *) Allow the CHIL engine to be loaded, whether the application is 5201 multithreaded or not. (This does not release the developer from the 5202 obligation to set up the dynamic locking callbacks.) 5203 [Sander Temme <sander@temme.net>] 5204 5205 *) Use correct exit code if there is an error in dgst command. 5206 [Steve Henson; problem pointed out by Roland Dirlewanger] 5207 5208 *) Tweak Configure so that you need to say "experimental-jpake" to enable 5209 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 5210 [Bodo Moeller] 5211 5212 *) Add experimental JPAKE support, including demo authentication in 5213 s_client and s_server. 5214 [Ben Laurie] 5215 5216 *) Set the comparison function in v3_addr_canonize(). 5217 [Rob Austein <sra@hactrn.net>] 5218 5219 *) Add support for XMPP STARTTLS in s_client. 5220 [Philip Paeps <philip@freebsd.org>] 5221 5222 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 5223 to ensure that even with this option, only ciphersuites in the 5224 server's preference list will be accepted. (Note that the option 5225 applies only when resuming a session, so the earlier behavior was 5226 just about the algorithm choice for symmetric cryptography.) 5227 [Bodo Moeller] 5228 5229 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 5230 5231 *) Fix NULL pointer dereference if a DTLS server received 5232 ChangeCipherSpec as first record (CVE-2009-1386). 5233 [PR #1679] 5234 5235 *) Fix a state transition in s3_srvr.c and d1_srvr.c 5236 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 5237 [Nagendra Modadugu] 5238 5239 *) The fix in 0.9.8c that supposedly got rid of unsafe 5240 double-checked locking was incomplete for RSA blinding, 5241 addressing just one layer of what turns out to have been 5242 doubly unsafe triple-checked locking. 5243 5244 So now fix this for real by retiring the MONT_HELPER macro 5245 in crypto/rsa/rsa_eay.c. 5246 5247 [Bodo Moeller; problem pointed out by Marius Schilder] 5248 5249 *) Various precautionary measures: 5250 5251 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 5252 5253 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 5254 (NB: This would require knowledge of the secret session ticket key 5255 to exploit, in which case you'd be SOL either way.) 5256 5257 - Change bn_nist.c so that it will properly handle input BIGNUMs 5258 outside the expected range. 5259 5260 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 5261 builds. 5262 5263 [Neel Mehta, Bodo Moeller] 5264 5265 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 5266 the load fails. Useful for distros. 5267 [Ben Laurie and the FreeBSD team] 5268 5269 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 5270 [Steve Henson] 5271 5272 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 5273 [Huang Ying] 5274 5275 *) Expand ENGINE to support engine supplied SSL client certificate functions. 5276 5277 This work was sponsored by Logica. 5278 [Steve Henson] 5279 5280 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 5281 keystores. Support for SSL/TLS client authentication too. 5282 Not compiled unless enable-capieng specified to Configure. 5283 5284 This work was sponsored by Logica. 5285 [Steve Henson] 5286 5287 *) Fix bug in X509_ATTRIBUTE creation: don't set attribute using 5288 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 5289 attribute creation routines such as certificate requests and PKCS#12 5290 files. 5291 [Steve Henson] 5292 5293 Changes between 0.9.8g and 0.9.8h [28 May 2008] 5294 5295 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 5296 handshake which could lead to a client crash as found using the 5297 Codenomicon TLS test suite (CVE-2008-1672) 5298 [Steve Henson, Mark Cox] 5299 5300 *) Fix double free in TLS server name extensions which could lead to 5301 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 5302 [Joe Orton] 5303 5304 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 5305 5306 Clear the error queue to ensure that error entries left from 5307 older function calls do not interfere with the correct operation. 5308 [Lutz Jaenicke, Erik de Castro Lopo] 5309 5310 *) Remove root CA certificates of commercial CAs: 5311 5312 The OpenSSL project does not recommend any specific CA and does not 5313 have any policy with respect to including or excluding any CA. 5314 Therefore it does not make any sense to ship an arbitrary selection 5315 of root CA certificates with the OpenSSL software. 5316 [Lutz Jaenicke] 5317 5318 *) RSA OAEP patches to fix two separate invalid memory reads. 5319 The first one involves inputs when 'lzero' is greater than 5320 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 5321 before the beginning of from). The second one involves inputs where 5322 the 'db' section contains nothing but zeroes (there is a one-byte 5323 invalid read after the end of 'db'). 5324 [Ivan Nestlerode <inestlerode@us.ibm.com>] 5325 5326 *) Partial backport from 0.9.9-dev: 5327 5328 Introduce bn_mul_mont (dedicated Montgomery multiplication 5329 procedure) as a candidate for BIGNUM assembler implementation. 5330 While 0.9.9-dev uses assembler for various architectures, only 5331 x86_64 is available by default here in the 0.9.8 branch, and 5332 32-bit x86 is available through a compile-time setting. 5333 5334 To try the 32-bit x86 assembler implementation, use Configure 5335 option "enable-montasm" (which exists only for this backport). 5336 5337 As "enable-montasm" for 32-bit x86 disclaims code stability 5338 anyway, in this constellation we activate additional code 5339 backported from 0.9.9-dev for further performance improvements, 5340 namely BN_from_montgomery_word. (To enable this otherwise, 5341 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 5342 5343 [Andy Polyakov (backport partially by Bodo Moeller)] 5344 5345 *) Add TLS session ticket callback. This allows an application to set 5346 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 5347 values. This is useful for key rollover for example where several key 5348 sets may exist with different names. 5349 [Steve Henson] 5350 5351 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 5352 This was broken until now in 0.9.8 releases, such that the only way 5353 a registered ENGINE could be used (assuming it initialises 5354 successfully on the host) was to explicitly set it as the default 5355 for the relevant algorithms. This is in contradiction with 0.9.7 5356 behaviour and the documentation. With this fix, when an ENGINE is 5357 registered into a given algorithm's table of implementations, the 5358 'uptodate' flag is reset so that auto-discovery will be used next 5359 time a new context for that algorithm attempts to select an 5360 implementation. 5361 [Ian Lister (tweaked by Geoff Thorpe)] 5362 5363 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 5364 implementation in the following ways: 5365 5366 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 5367 hard coded. 5368 5369 Lack of BER streaming support means one pass streaming processing is 5370 only supported if data is detached: setting the streaming flag is 5371 ignored for embedded content. 5372 5373 CMS support is disabled by default and must be explicitly enabled 5374 with the enable-cms configuration option. 5375 [Steve Henson] 5376 5377 *) Update the GMP engine glue to do direct copies between BIGNUM and 5378 mpz_t when openssl and GMP use the same limb size. Otherwise the 5379 existing "conversion via a text string export" trick is still used. 5380 [Paul Sheer <paulsheer@gmail.com>] 5381 5382 *) Zlib compression BIO. This is a filter BIO which compressed and 5383 uncompresses any data passed through it. 5384 [Steve Henson] 5385 5386 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 5387 RFC3394 compatible AES key wrapping. 5388 [Steve Henson] 5389 5390 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 5391 sets string data without copying. X509_ALGOR_set0() and 5392 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 5393 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 5394 from an X509_ATTRIBUTE structure optionally checking it occurs only 5395 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 5396 data. 5397 [Steve Henson] 5398 5399 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 5400 to get the expected BN_FLG_CONSTTIME behavior. 5401 [Bodo Moeller (Google)] 5402 5403 *) Netware support: 5404 5405 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 5406 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 5407 - added some more tests to do_tests.pl 5408 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 5409 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 5410 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 5411 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 5412 - various changes to netware.pl to enable gcc-cross builds on Win32 5413 platform 5414 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 5415 - various changes to fix missing prototype warnings 5416 - fixed x86nasm.pl to create correct asm files for NASM COFF output 5417 - added AES, WHIRLPOOL and CPUID assembler code to build files 5418 - added missing AES assembler make rules to mk1mf.pl 5419 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 5420 [Guenter Knauf <eflash@gmx.net>] 5421 5422 *) Implement certificate status request TLS extension defined in RFC3546. 5423 A client can set the appropriate parameters and receive the encoded 5424 OCSP response via a callback. A server can query the supplied parameters 5425 and set the encoded OCSP response in the callback. Add simplified examples 5426 to s_client and s_server. 5427 [Steve Henson] 5428 5429 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 5430 5431 *) Fix various bugs: 5432 + Binary incompatibility of ssl_ctx_st structure 5433 + DTLS interoperation with non-compliant servers 5434 + Don't call get_session_cb() without proposed session 5435 + Fix ia64 assembler code 5436 [Andy Polyakov, Steve Henson] 5437 5438 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 5439 5440 *) DTLS Handshake overhaul. There were longstanding issues with 5441 OpenSSL DTLS implementation, which were making it impossible for 5442 RFC 4347 compliant client to communicate with OpenSSL server. 5443 Unfortunately just fixing these incompatibilities would "cut off" 5444 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 5445 server keeps tolerating non RFC compliant syntax. The opposite is 5446 not true, 0.9.8f client can not communicate with earlier server. 5447 This update even addresses CVE-2007-4995. 5448 [Andy Polyakov] 5449 5450 *) Changes to avoid need for function casts in OpenSSL: some compilers 5451 (gcc 4.2 and later) reject their use. 5452 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 5453 Steve Henson] 5454 5455 *) Add RFC4507 support to OpenSSL. This includes the corrections in 5456 RFC4507bis. The encrypted ticket format is an encrypted encoded 5457 SSL_SESSION structure, that way new session features are automatically 5458 supported. 5459 5460 If a client application caches session in an SSL_SESSION structure 5461 support is transparent because tickets are now stored in the encoded 5462 SSL_SESSION. 5463 5464 The SSL_CTX structure automatically generates keys for ticket 5465 protection in servers so again support should be possible 5466 with no application modification. 5467 5468 If a client or server wishes to disable RFC4507 support then the option 5469 SSL_OP_NO_TICKET can be set. 5470 5471 Add a TLS extension debugging callback to allow the contents of any client 5472 or server extensions to be examined. 5473 5474 This work was sponsored by Google. 5475 [Steve Henson] 5476 5477 *) Add initial support for TLS extensions, specifically for the server_name 5478 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 5479 have new members for a host name. The SSL data structure has an 5480 additional member SSL_CTX *initial_ctx so that new sessions can be 5481 stored in that context to allow for session resumption, even after the 5482 SSL has been switched to a new SSL_CTX in reaction to a client's 5483 server_name extension. 5484 5485 New functions (subject to change): 5486 5487 SSL_get_servername() 5488 SSL_get_servername_type() 5489 SSL_set_SSL_CTX() 5490 5491 New CTRL codes and macros (subject to change): 5492 5493 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 5494 - SSL_CTX_set_tlsext_servername_callback() 5495 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 5496 - SSL_CTX_set_tlsext_servername_arg() 5497 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 5498 5499 openssl s_client has a new '-servername ...' option. 5500 5501 openssl s_server has new options '-servername_host ...', '-cert2 ...', 5502 '-key2 ...', '-servername_fatal' (subject to change). This allows 5503 testing the HostName extension for a specific single host name ('-cert' 5504 and '-key' remain fallbacks for handshakes without HostName 5505 negotiation). If the unrecognized_name alert has to be sent, this by 5506 default is a warning; it becomes fatal with the '-servername_fatal' 5507 option. 5508 5509 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 5510 5511 *) Add AES and SSE2 assembly language support to VC++ build. 5512 [Steve Henson] 5513 5514 *) Mitigate attack on final subtraction in Montgomery reduction. 5515 [Andy Polyakov] 5516 5517 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 5518 (which previously caused an internal error). 5519 [Bodo Moeller] 5520 5521 *) Squeeze another 10% out of IGE mode when in != out. 5522 [Ben Laurie] 5523 5524 *) AES IGE mode speedup. 5525 [Dean Gaudet (Google)] 5526 5527 *) Add the Korean symmetric 128-bit cipher SEED (see 5528 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 5529 add SEED ciphersuites from RFC 4162: 5530 5531 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 5532 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 5533 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 5534 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 5535 5536 To minimize changes between patchlevels in the OpenSSL 0.9.8 5537 series, SEED remains excluded from compilation unless OpenSSL 5538 is configured with 'enable-seed'. 5539 [KISA, Bodo Moeller] 5540 5541 *) Mitigate branch prediction attacks, which can be practical if a 5542 single processor is shared, allowing a spy process to extract 5543 information. For detailed background information, see 5544 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 5545 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 5546 and Necessary Software Countermeasures"). The core of the change 5547 are new versions BN_div_no_branch() and 5548 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 5549 respectively, which are slower, but avoid the security-relevant 5550 conditional branches. These are automatically called by BN_div() 5551 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 5552 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 5553 remove a conditional branch. 5554 5555 BN_FLG_CONSTTIME is the new name for the previous 5556 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 5557 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 5558 in the exponent causes BN_mod_exp_mont() to use the alternative 5559 implementation in BN_mod_exp_mont_consttime().) The old name 5560 remains as a deprecated alias. 5561 5562 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 5563 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 5564 constant-time implementations for more than just exponentiation. 5565 Here too the old name is kept as a deprecated alias. 5566 5567 BN_BLINDING_new() will now use BN_dup() for the modulus so that 5568 the BN_BLINDING structure gets an independent copy of the 5569 modulus. This means that the previous "BIGNUM *m" argument to 5570 BN_BLINDING_new() and to BN_BLINDING_create_param() now 5571 essentially becomes "const BIGNUM *m", although we can't actually 5572 change this in the header file before 0.9.9. It allows 5573 RSA_setup_blinding() to use BN_with_flags() on the modulus to 5574 enable BN_FLG_CONSTTIME. 5575 5576 [Matthew D Wood (Intel Corp)] 5577 5578 *) In the SSL/TLS server implementation, be strict about session ID 5579 context matching (which matters if an application uses a single 5580 external cache for different purposes). Previously, 5581 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 5582 set. This did ensure strict client verification, but meant that, 5583 with applications using a single external cache for quite 5584 different requirements, clients could circumvent ciphersuite 5585 restrictions for a given session ID context by starting a session 5586 in a different context. 5587 [Bodo Moeller] 5588 5589 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 5590 a ciphersuite string such as "DEFAULT:RSA" cannot enable 5591 authentication-only ciphersuites. 5592 [Bodo Moeller] 5593 5594 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 5595 not complete and could lead to a possible single byte overflow 5596 (CVE-2007-5135) [Ben Laurie] 5597 5598 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 5599 5600 *) Since AES128 and AES256 (and similarly Camellia128 and 5601 Camellia256) share a single mask bit in the logic of 5602 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 5603 kludge to work properly if AES128 is available and AES256 isn't 5604 (or if Camellia128 is available and Camellia256 isn't). 5605 [Victor Duchovni] 5606 5607 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 5608 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 5609 When a point or a seed is encoded in a BIT STRING, we need to 5610 prevent the removal of trailing zero bits to get the proper DER 5611 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 5612 of a NamedBitList, for which trailing 0 bits need to be removed.) 5613 [Bodo Moeller] 5614 5615 *) Have SSL/TLS server implementation tolerate "mismatched" record 5616 protocol version while receiving ClientHello even if the 5617 ClientHello is fragmented. (The server can't insist on the 5618 particular protocol version it has chosen before the ServerHello 5619 message has informed the client about his choice.) 5620 [Bodo Moeller] 5621 5622 *) Add RFC 3779 support. 5623 [Rob Austein for ARIN, Ben Laurie] 5624 5625 *) Load error codes if they are not already present instead of using a 5626 static variable. This allows them to be cleanly unloaded and reloaded. 5627 Improve header file function name parsing. 5628 [Steve Henson] 5629 5630 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 5631 or CAPABILITY handshake as required by RFCs. 5632 [Goetz Babin-Ebell] 5633 5634 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 5635 5636 *) Introduce limits to prevent malicious keys being able to 5637 cause a denial of service. (CVE-2006-2940) 5638 [Steve Henson, Bodo Moeller] 5639 5640 *) Fix ASN.1 parsing of certain invalid structures that can result 5641 in a denial of service. (CVE-2006-2937) [Steve Henson] 5642 5643 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 5644 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 5645 5646 *) Fix SSL client code which could crash if connecting to a 5647 malicious SSLv2 server. (CVE-2006-4343) 5648 [Tavis Ormandy and Will Drewry, Google Security Team] 5649 5650 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 5651 match only those. Before that, "AES256-SHA" would be interpreted 5652 as a pattern and match "AES128-SHA" too (since AES128-SHA got 5653 the same strength classification in 0.9.7h) as we currently only 5654 have a single AES bit in the ciphersuite description bitmap. 5655 That change, however, also applied to ciphersuite strings such as 5656 "RC4-MD5" that intentionally matched multiple ciphersuites -- 5657 namely, SSL 2.0 ciphersuites in addition to the more common ones 5658 from SSL 3.0/TLS 1.0. 5659 5660 So we change the selection algorithm again: Naming an explicit 5661 ciphersuite selects this one ciphersuite, and any other similar 5662 ciphersuite (same bitmap) from *other* protocol versions. 5663 Thus, "RC4-MD5" again will properly select both the SSL 2.0 5664 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 5665 5666 Since SSL 2.0 does not have any ciphersuites for which the 5667 128/256 bit distinction would be relevant, this works for now. 5668 The proper fix will be to use different bits for AES128 and 5669 AES256, which would have avoided the problems from the beginning; 5670 however, bits are scarce, so we can only do this in a new release 5671 (not just a patchlevel) when we can change the SSL_CIPHER 5672 definition to split the single 'unsigned long mask' bitmap into 5673 multiple values to extend the available space. 5674 5675 [Bodo Moeller] 5676 5677 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 5678 5679 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 5680 (CVE-2006-4339) [Ben Laurie and Google Security Team] 5681 5682 *) Add AES IGE and biIGE modes. 5683 [Ben Laurie] 5684 5685 *) Change the Unix randomness entropy gathering to use poll() when 5686 possible instead of select(), since the latter has some 5687 undesirable limitations. 5688 [Darryl Miles via Richard Levitte and Bodo Moeller] 5689 5690 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 5691 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 5692 cannot be implicitly activated as part of, e.g., the "AES" alias. 5693 However, please upgrade to OpenSSL 0.9.9[-dev] for 5694 non-experimental use of the ECC ciphersuites to get TLS extension 5695 support, which is required for curve and point format negotiation 5696 to avoid potential handshake problems. 5697 [Bodo Moeller] 5698 5699 *) Disable rogue ciphersuites: 5700 5701 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 5702 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 5703 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 5704 5705 The latter two were purportedly from 5706 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 5707 appear there. 5708 5709 Also deactivate the remaining ciphersuites from 5710 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 5711 unofficial, and the ID has long expired. 5712 [Bodo Moeller] 5713 5714 *) Fix RSA blinding Heisenbug (problems sometimes occurred on 5715 dual-core machines) and other potential thread-safety issues. 5716 [Bodo Moeller] 5717 5718 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 5719 versions), which is now available for royalty-free use 5720 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 5721 Also, add Camellia TLS ciphersuites from RFC 4132. 5722 5723 To minimize changes between patchlevels in the OpenSSL 0.9.8 5724 series, Camellia remains excluded from compilation unless OpenSSL 5725 is configured with 'enable-camellia'. 5726 [NTT] 5727 5728 *) Disable the padding bug check when compression is in use. The padding 5729 bug check assumes the first packet is of even length, this is not 5730 necessarily true if compression is enabled and can result in false 5731 positives causing handshake failure. The actual bug test is ancient 5732 code so it is hoped that implementations will either have fixed it by 5733 now or any which still have the bug do not support compression. 5734 [Steve Henson] 5735 5736 Changes between 0.9.8a and 0.9.8b [04 May 2006] 5737 5738 *) When applying a cipher rule check to see if string match is an explicit 5739 cipher suite and only match that one cipher suite if it is. 5740 [Steve Henson] 5741 5742 *) Link in manifests for VC++ if needed. 5743 [Austin Ziegler <halostatue@gmail.com>] 5744 5745 *) Update support for ECC-based TLS ciphersuites according to 5746 draft-ietf-tls-ecc-12.txt with proposed changes (but without 5747 TLS extensions, which are supported starting with the 0.9.9 5748 branch, not in the OpenSSL 0.9.8 branch). 5749 [Douglas Stebila] 5750 5751 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 5752 opaque EVP_CIPHER_CTX handling. 5753 [Steve Henson] 5754 5755 *) Fixes and enhancements to zlib compression code. We now only use 5756 "zlib1.dll" and use the default __cdecl calling convention on Win32 5757 to conform with the standards mentioned here: 5758 http://www.zlib.net/DLL_FAQ.txt 5759 Static zlib linking now works on Windows and the new --with-zlib-include 5760 --with-zlib-lib options to Configure can be used to supply the location 5761 of the headers and library. Gracefully handle case where zlib library 5762 can't be loaded. 5763 [Steve Henson] 5764 5765 *) Several fixes and enhancements to the OID generation code. The old code 5766 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 5767 handle numbers larger than ULONG_MAX, truncated printing and had a 5768 non standard OBJ_obj2txt() behaviour. 5769 [Steve Henson] 5770 5771 *) Add support for building of engines under engine/ as shared libraries 5772 under VC++ build system. 5773 [Steve Henson] 5774 5775 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 5776 Hopefully, we will not see any false combination of paths any more. 5777 [Richard Levitte] 5778 5779 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 5780 5781 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 5782 (part of SSL_OP_ALL). This option used to disable the 5783 countermeasure against man-in-the-middle protocol-version 5784 rollback in the SSL 2.0 server implementation, which is a bad 5785 idea. (CVE-2005-2969) 5786 5787 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 5788 for Information Security, National Institute of Advanced Industrial 5789 Science and Technology [AIST], Japan)] 5790 5791 *) Add two function to clear and return the verify parameter flags. 5792 [Steve Henson] 5793 5794 *) Keep cipherlists sorted in the source instead of sorting them at 5795 runtime, thus removing the need for a lock. 5796 [Nils Larsch] 5797 5798 *) Avoid some small subgroup attacks in Diffie-Hellman. 5799 [Nick Mathewson and Ben Laurie] 5800 5801 *) Add functions for well-known primes. 5802 [Nick Mathewson] 5803 5804 *) Extended Windows CE support. 5805 [Satoshi Nakamura and Andy Polyakov] 5806 5807 *) Initialize SSL_METHOD structures at compile time instead of during 5808 runtime, thus removing the need for a lock. 5809 [Steve Henson] 5810 5811 *) Make PKCS7_decrypt() work even if no certificate is supplied by 5812 attempting to decrypt each encrypted key in turn. Add support to 5813 smime utility. 5814 [Steve Henson] 5815 5816 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 5817 5818 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 5819 OpenSSL 0.9.8.] 5820 5821 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 5822 [Richard Levitte] 5823 5824 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 5825 key into the same file any more. 5826 [Richard Levitte] 5827 5828 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 5829 [Andy Polyakov] 5830 5831 *) Add -utf8 command line and config file option to 'ca'. 5832 [Stefan <stf@udoma.org] 5833 5834 *) Removed the macro des_crypt(), as it seems to conflict with some 5835 libraries. Use DES_crypt(). 5836 [Richard Levitte] 5837 5838 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 5839 involves renaming the source and generated shared-libs for 5840 both. The engines will accept the corrected or legacy ids 5841 ('ncipher' and '4758_cca' respectively) when binding. NB, 5842 this only applies when building 'shared'. 5843 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 5844 5845 *) Add attribute functions to EVP_PKEY structure. Modify 5846 PKCS12_create() to recognize a CSP name attribute and 5847 use it. Make -CSP option work again in pkcs12 utility. 5848 [Steve Henson] 5849 5850 *) Add new functionality to the bn blinding code: 5851 - automatic re-creation of the BN_BLINDING parameters after 5852 a fixed number of uses (currently 32) 5853 - add new function for parameter creation 5854 - introduce flags to control the update behaviour of the 5855 BN_BLINDING parameters 5856 - hide BN_BLINDING structure 5857 Add a second BN_BLINDING slot to the RSA structure to improve 5858 performance when a single RSA object is shared among several 5859 threads. 5860 [Nils Larsch] 5861 5862 *) Add support for DTLS. 5863 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 5864 5865 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 5866 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 5867 [Walter Goulet] 5868 5869 *) Remove buggy and incomplete DH cert support from 5870 ssl/ssl_rsa.c and ssl/s3_both.c 5871 [Nils Larsch] 5872 5873 *) Use SHA-1 instead of MD5 as the default digest algorithm for 5874 the apps/openssl applications. 5875 [Nils Larsch] 5876 5877 *) Compile clean with "-Wall -Wmissing-prototypes 5878 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 5879 DEBUG_SAFESTACK must also be set. 5880 [Ben Laurie] 5881 5882 *) Change ./Configure so that certain algorithms can be disabled by default. 5883 The new counterpiece to "no-xxx" is "enable-xxx". 5884 5885 The patented RC5 and MDC2 algorithms will now be disabled unless 5886 "enable-rc5" and "enable-mdc2", respectively, are specified. 5887 5888 (IDEA remains enabled despite being patented. This is because IDEA 5889 is frequently required for interoperability, and there is no license 5890 fee for non-commercial use. As before, "no-idea" can be used to 5891 avoid this algorithm.) 5892 5893 [Bodo Moeller] 5894 5895 *) Add processing of proxy certificates (see RFC 3820). This work was 5896 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 5897 EGEE (Enabling Grids for E-science in Europe). 5898 [Richard Levitte] 5899 5900 *) RC4 performance overhaul on modern architectures/implementations, such 5901 as Intel P4, IA-64 and AMD64. 5902 [Andy Polyakov] 5903 5904 *) New utility extract-section.pl. This can be used specify an alternative 5905 section number in a pod file instead of having to treat each file as 5906 a separate case in Makefile. This can be done by adding two lines to the 5907 pod file: 5908 5909 =for comment openssl_section:XXX 5910 5911 The blank line is mandatory. 5912 5913 [Steve Henson] 5914 5915 *) New arguments -certform, -keyform and -pass for s_client and s_server 5916 to allow alternative format key and certificate files and passphrase 5917 sources. 5918 [Steve Henson] 5919 5920 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 5921 update associated structures and add various utility functions. 5922 5923 Add new policy related verify parameters, include policy checking in 5924 standard verify code. Enhance 'smime' application with extra parameters 5925 to support policy checking and print out. 5926 [Steve Henson] 5927 5928 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 5929 Nehemiah processors. These extensions support AES encryption in hardware 5930 as well as RNG (though RNG support is currently disabled). 5931 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 5932 5933 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 5934 [Geoff Thorpe] 5935 5936 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 5937 [Andy Polyakov and a number of other people] 5938 5939 *) Improved PowerPC platform support. Most notably BIGNUM assembler 5940 implementation contributed by IBM. 5941 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 5942 5943 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 5944 exponent rather than 'unsigned long'. There is a corresponding change to 5945 the new 'rsa_keygen' element of the RSA_METHOD structure. 5946 [Jelte Jansen, Geoff Thorpe] 5947 5948 *) Functionality for creating the initial serial number file is now 5949 moved from CA.pl to the 'ca' utility with a new option -create_serial. 5950 5951 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 5952 number file to 1, which is bound to cause problems. To avoid 5953 the problems while respecting compatibility between different 0.9.7 5954 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 5955 CA.pl for serial number initialization. With the new release 0.9.8, 5956 we can fix the problem directly in the 'ca' utility.) 5957 [Steve Henson] 5958 5959 *) Reduced header interdependencies by declaring more opaque objects in 5960 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 5961 give fewer recursive includes, which could break lazy source code - so 5962 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 5963 developers should define this symbol when building and using openssl to 5964 ensure they track the recommended behaviour, interfaces, [etc], but 5965 backwards-compatible behaviour prevails when this isn't defined. 5966 [Geoff Thorpe] 5967 5968 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 5969 [Steve Henson] 5970 5971 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 5972 This will generate a random key of the appropriate length based on the 5973 cipher context. The EVP_CIPHER can provide its own random key generation 5974 routine to support keys of a specific form. This is used in the des and 5975 3des routines to generate a key of the correct parity. Update S/MIME 5976 code to use new functions and hence generate correct parity DES keys. 5977 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 5978 valid (weak or incorrect parity). 5979 [Steve Henson] 5980 5981 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 5982 as looking them up. This is useful when the verified structure may contain 5983 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 5984 present unless the new PKCS7_NO_CRL flag is asserted. 5985 [Steve Henson] 5986 5987 *) Extend ASN1 oid configuration module. It now additionally accepts the 5988 syntax: 5989 5990 shortName = some long name, 1.2.3.4 5991 [Steve Henson] 5992 5993 *) Reimplemented the BN_CTX implementation. There is now no more static 5994 limitation on the number of variables it can handle nor the depth of the 5995 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 5996 information can now expand as required, and rather than having a single 5997 static array of bignums, BN_CTX now uses a linked-list of such arrays 5998 allowing it to expand on demand whilst maintaining the usefulness of 5999 BN_CTX's "bundling". 6000 [Geoff Thorpe] 6001 6002 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 6003 to allow all RSA operations to function using a single BN_CTX. 6004 [Geoff Thorpe] 6005 6006 *) Preliminary support for certificate policy evaluation and checking. This 6007 is initially intended to pass the tests outlined in "Conformance Testing 6008 of Relying Party Client Certificate Path Processing Logic" v1.07. 6009 [Steve Henson] 6010 6011 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 6012 remained unused and not that useful. A variety of other little bignum 6013 tweaks and fixes have also been made continuing on from the audit (see 6014 below). 6015 [Geoff Thorpe] 6016 6017 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 6018 associated ASN1, EVP and SSL functions and old ASN1 macros. 6019 [Richard Levitte] 6020 6021 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 6022 and this should never fail. So the return value from the use of 6023 BN_set_word() (which can fail due to needless expansion) is now deprecated; 6024 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 6025 [Geoff Thorpe] 6026 6027 *) BN_CTX_get() should return zero-valued bignums, providing the same 6028 initialised value as BN_new(). 6029 [Geoff Thorpe, suggested by Ulf Möller] 6030 6031 *) Support for inhibitAnyPolicy certificate extension. 6032 [Steve Henson] 6033 6034 *) An audit of the BIGNUM code is underway, for which debugging code is 6035 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 6036 is considered valid when processing BIGNUMs, and causes execution to 6037 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 6038 further steps are taken to deliberately pollute unused data in BIGNUM 6039 structures to try and expose faulty code further on. For now, openssl will 6040 (in its default mode of operation) continue to tolerate the inconsistent 6041 forms that it has tolerated in the past, but authors and packagers should 6042 consider trying openssl and their own applications when compiled with 6043 these debugging symbols defined. It will help highlight potential bugs in 6044 their own code, and will improve the test coverage for OpenSSL itself. At 6045 some point, these tighter rules will become openssl's default to improve 6046 maintainability, though the assert()s and other overheads will remain only 6047 in debugging configurations. See bn.h for more details. 6048 [Geoff Thorpe, Nils Larsch, Ulf Möller] 6049 6050 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 6051 that can only be obtained through BN_CTX_new() (which implicitly 6052 initialises it). The presence of this function only made it possible 6053 to overwrite an existing structure (and cause memory leaks). 6054 [Geoff Thorpe] 6055 6056 *) Because of the callback-based approach for implementing LHASH as a 6057 template type, lh_insert() adds opaque objects to hash-tables and 6058 lh_doall() or lh_doall_arg() are typically used with a destructor callback 6059 to clean up those corresponding objects before destroying the hash table 6060 (and losing the object pointers). So some over-zealous constifications in 6061 LHASH have been relaxed so that lh_insert() does not take (nor store) the 6062 objects as "const" and the lh_doall[_arg] callback wrappers are not 6063 prototyped to have "const" restrictions on the object pointers they are 6064 given (and so aren't required to cast them away any more). 6065 [Geoff Thorpe] 6066 6067 *) The tmdiff.h API was so ugly and minimal that our own timing utility 6068 (speed) prefers to use its own implementation. The two implementations 6069 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 6070 its object type properly exposed (MS_TM) instead of casting to/from "char 6071 *". This may still change yet if someone realises MS_TM and "ms_time_***" 6072 aren't necessarily the greatest nomenclatures - but this is what was used 6073 internally to the implementation so I've used that for now. 6074 [Geoff Thorpe] 6075 6076 *) Ensure that deprecated functions do not get compiled when 6077 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 6078 the self-tests were still using deprecated key-generation functions so 6079 these have been updated also. 6080 [Geoff Thorpe] 6081 6082 *) Reorganise PKCS#7 code to separate the digest location functionality 6083 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 6084 New function PKCS7_set_digest() to set the digest type for PKCS#7 6085 digestedData type. Add additional code to correctly generate the 6086 digestedData type and add support for this type in PKCS7 initialization 6087 functions. 6088 [Steve Henson] 6089 6090 *) New function PKCS7_set0_type_other() this initializes a PKCS7 6091 structure of type "other". 6092 [Steve Henson] 6093 6094 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 6095 sure the loop does correctly stop and breaking ("division by zero") 6096 modulus operations are not performed. The (pre-generated) prime 6097 table crypto/bn/bn_prime.h was already correct, but it could not be 6098 re-generated on some platforms because of the "division by zero" 6099 situation in the script. 6100 [Ralf S. Engelschall] 6101 6102 *) Update support for ECC-based TLS ciphersuites according to 6103 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 6104 SHA-1 now is only used for "small" curves (where the 6105 representation of a field element takes up to 24 bytes); for 6106 larger curves, the field element resulting from ECDH is directly 6107 used as premaster secret. 6108 [Douglas Stebila (Sun Microsystems Laboratories)] 6109 6110 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 6111 curve secp160r1 to the tests. 6112 [Douglas Stebila (Sun Microsystems Laboratories)] 6113 6114 *) Add the possibility to load symbols globally with DSO. 6115 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 6116 6117 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 6118 control of the error stack. 6119 [Richard Levitte] 6120 6121 *) Add support for STORE in ENGINE. 6122 [Richard Levitte] 6123 6124 *) Add the STORE type. The intention is to provide a common interface 6125 to certificate and key stores, be they simple file-based stores, or 6126 HSM-type store, or LDAP stores, or... 6127 NOTE: The code is currently UNTESTED and isn't really used anywhere. 6128 [Richard Levitte] 6129 6130 *) Add a generic structure called OPENSSL_ITEM. This can be used to 6131 pass a list of arguments to any function as well as provide a way 6132 for a function to pass data back to the caller. 6133 [Richard Levitte] 6134 6135 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 6136 works like BUF_strdup() but can be used to duplicate a portion of 6137 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 6138 a memory area. 6139 [Richard Levitte] 6140 6141 *) Add the function sk_find_ex() which works like sk_find(), but will 6142 return an index to an element even if an exact match couldn't be 6143 found. The index is guaranteed to point at the element where the 6144 searched-for key would be inserted to preserve sorting order. 6145 [Richard Levitte] 6146 6147 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 6148 takes an extra flags argument for optional functionality. Currently, 6149 the following flags are defined: 6150 6151 OBJ_BSEARCH_VALUE_ON_NOMATCH 6152 This one gets OBJ_bsearch_ex() to return a pointer to the first 6153 element where the comparing function returns a negative or zero 6154 number. 6155 6156 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 6157 This one gets OBJ_bsearch_ex() to return a pointer to the first 6158 element where the comparing function returns zero. This is useful 6159 if there are more than one element where the comparing function 6160 returns zero. 6161 [Richard Levitte] 6162 6163 *) Make it possible to create self-signed certificates with 'openssl ca' 6164 in such a way that the self-signed certificate becomes part of the 6165 CA database and uses the same mechanisms for serial number generation 6166 as all other certificate signing. The new flag '-selfsign' enables 6167 this functionality. Adapt CA.sh and CA.pl.in. 6168 [Richard Levitte] 6169 6170 *) Add functionality to check the public key of a certificate request 6171 against a given private. This is useful to check that a certificate 6172 request can be signed by that key (self-signing). 6173 [Richard Levitte] 6174 6175 *) Make it possible to have multiple active certificates with the same 6176 subject in the CA index file. This is done only if the keyword 6177 'unique_subject' is set to 'no' in the main CA section (default 6178 if 'CA_default') of the configuration file. The value is saved 6179 with the database itself in a separate index attribute file, 6180 named like the index file with '.attr' appended to the name. 6181 [Richard Levitte] 6182 6183 *) Generate multi-valued AVAs using '+' notation in config files for 6184 req and dirName. 6185 [Steve Henson] 6186 6187 *) Support for nameConstraints certificate extension. 6188 [Steve Henson] 6189 6190 *) Support for policyConstraints certificate extension. 6191 [Steve Henson] 6192 6193 *) Support for policyMappings certificate extension. 6194 [Steve Henson] 6195 6196 *) Make sure the default DSA_METHOD implementation only uses its 6197 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 6198 and change its own handlers to be NULL so as to remove unnecessary 6199 indirection. This lets alternative implementations fallback to the 6200 default implementation more easily. 6201 [Geoff Thorpe] 6202 6203 *) Support for directoryName in GeneralName related extensions 6204 in config files. 6205 [Steve Henson] 6206 6207 *) Make it possible to link applications using Makefile.shared. 6208 Make that possible even when linking against static libraries! 6209 [Richard Levitte] 6210 6211 *) Support for single pass processing for S/MIME signing. This now 6212 means that S/MIME signing can be done from a pipe, in addition 6213 cleartext signing (multipart/signed type) is effectively streaming 6214 and the signed data does not need to be all held in memory. 6215 6216 This is done with a new flag PKCS7_STREAM. When this flag is set 6217 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 6218 is done after the data is output (and digests calculated) in 6219 SMIME_write_PKCS7(). 6220 [Steve Henson] 6221 6222 *) Add full support for -rpath/-R, both in shared libraries and 6223 applications, at least on the platforms where it's known how 6224 to do it. 6225 [Richard Levitte] 6226 6227 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 6228 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 6229 will now compute a table of multiples of the generator that 6230 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 6231 faster (notably in the case of a single point multiplication, 6232 scalar * generator). 6233 [Nils Larsch, Bodo Moeller] 6234 6235 *) IPv6 support for certificate extensions. The various extensions 6236 which use the IP:a.b.c.d can now take IPv6 addresses using the 6237 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 6238 correctly. 6239 [Steve Henson] 6240 6241 *) Added an ENGINE that implements RSA by performing private key 6242 exponentiations with the GMP library. The conversions to and from 6243 GMP's mpz_t format aren't optimised nor are any montgomery forms 6244 cached, and on x86 it appears OpenSSL's own performance has caught up. 6245 However there are likely to be other architectures where GMP could 6246 provide a boost. This ENGINE is not built in by default, but it can be 6247 specified at Configure time and should be accompanied by the necessary 6248 linker additions, eg; 6249 ./config -DOPENSSL_USE_GMP -lgmp 6250 [Geoff Thorpe] 6251 6252 *) "openssl engine" will not display ENGINE/DSO load failure errors when 6253 testing availability of engines with "-t" - the old behaviour is 6254 produced by increasing the feature's verbosity with "-tt". 6255 [Geoff Thorpe] 6256 6257 *) ECDSA routines: under certain error conditions uninitialized BN objects 6258 could be freed. Solution: make sure initialization is performed early 6259 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 6260 via PR#459) 6261 [Lutz Jaenicke] 6262 6263 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 6264 and DH_METHOD (eg. by ENGINE implementations) to override the normal 6265 software implementations. For DSA and DH, parameter generation can 6266 also be overridden by providing the appropriate method callbacks. 6267 [Geoff Thorpe] 6268 6269 *) Change the "progress" mechanism used in key-generation and 6270 primality testing to functions that take a new BN_GENCB pointer in 6271 place of callback/argument pairs. The new API functions have "_ex" 6272 postfixes and the older functions are reimplemented as wrappers for 6273 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 6274 declarations of the old functions to help (graceful) attempts to 6275 migrate to the new functions. Also, the new key-generation API 6276 functions operate on a caller-supplied key-structure and return 6277 success/failure rather than returning a key or NULL - this is to 6278 help make "keygen" another member function of RSA_METHOD etc. 6279 6280 Example for using the new callback interface: 6281 6282 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 6283 void *my_arg = ...; 6284 BN_GENCB my_cb; 6285 6286 BN_GENCB_set(&my_cb, my_callback, my_arg); 6287 6288 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 6289 /* For the meaning of a, b in calls to my_callback(), see the 6290 * documentation of the function that calls the callback. 6291 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 6292 * my_callback should return 1 if it wants BN_is_prime_ex() 6293 * to continue, or 0 to stop. 6294 */ 6295 6296 [Geoff Thorpe] 6297 6298 *) Change the ZLIB compression method to be stateful, and make it 6299 available to TLS with the number defined in 6300 draft-ietf-tls-compression-04.txt. 6301 [Richard Levitte] 6302 6303 *) Add the ASN.1 structures and functions for CertificatePair, which 6304 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 6305 6306 CertificatePair ::= SEQUENCE { 6307 forward [0] Certificate OPTIONAL, 6308 reverse [1] Certificate OPTIONAL, 6309 -- at least one of the pair shall be present -- } 6310 6311 Also implement the PEM functions to read and write certificate 6312 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 6313 6314 This needed to be defined, mostly for the sake of the LDAP 6315 attribute crossCertificatePair, but may prove useful elsewhere as 6316 well. 6317 [Richard Levitte] 6318 6319 *) Make it possible to inhibit symlinking of shared libraries in 6320 Makefile.shared, for Cygwin's sake. 6321 [Richard Levitte] 6322 6323 *) Extend the BIGNUM API by creating a function 6324 void BN_set_negative(BIGNUM *a, int neg); 6325 and a macro that behave like 6326 int BN_is_negative(const BIGNUM *a); 6327 6328 to avoid the need to access 'a->neg' directly in applications. 6329 [Nils Larsch] 6330 6331 *) Implement fast modular reduction for pseudo-Mersenne primes 6332 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 6333 EC_GROUP_new_curve_GFp() will now automatically use this 6334 if applicable. 6335 [Nils Larsch <nla@trustcenter.de>] 6336 6337 *) Add new lock type (CRYPTO_LOCK_BN). 6338 [Bodo Moeller] 6339 6340 *) Change the ENGINE framework to automatically load engines 6341 dynamically from specific directories unless they could be 6342 found to already be built in or loaded. Move all the 6343 current engines except for the cryptodev one to a new 6344 directory engines/. 6345 The engines in engines/ are built as shared libraries if 6346 the "shared" options was given to ./Configure or ./config. 6347 Otherwise, they are inserted in libcrypto.a. 6348 /usr/local/ssl/engines is the default directory for dynamic 6349 engines, but that can be overridden at configure time through 6350 the usual use of --prefix and/or --openssldir, and at run 6351 time with the environment variable OPENSSL_ENGINES. 6352 [Geoff Thorpe and Richard Levitte] 6353 6354 *) Add Makefile.shared, a helper makefile to build shared 6355 libraries. Adapt Makefile.org. 6356 [Richard Levitte] 6357 6358 *) Add version info to Win32 DLLs. 6359 [Peter 'Luna' Runestig" <peter@runestig.com>] 6360 6361 *) Add new 'medium level' PKCS#12 API. Certificates and keys 6362 can be added using this API to created arbitrary PKCS#12 6363 files while avoiding the low level API. 6364 6365 New options to PKCS12_create(), key or cert can be NULL and 6366 will then be omitted from the output file. The encryption 6367 algorithm NIDs can be set to -1 for no encryption, the mac 6368 iteration count can be set to 0 to omit the mac. 6369 6370 Enhance pkcs12 utility by making the -nokeys and -nocerts 6371 options work when creating a PKCS#12 file. New option -nomac 6372 to omit the mac, NONE can be set for an encryption algorithm. 6373 New code is modified to use the enhanced PKCS12_create() 6374 instead of the low level API. 6375 [Steve Henson] 6376 6377 *) Extend ASN1 encoder to support indefinite length constructed 6378 encoding. This can output sequences tags and octet strings in 6379 this form. Modify pk7_asn1.c to support indefinite length 6380 encoding. This is experimental and needs additional code to 6381 be useful, such as an ASN1 bio and some enhanced streaming 6382 PKCS#7 code. 6383 6384 Extend template encode functionality so that tagging is passed 6385 down to the template encoder. 6386 [Steve Henson] 6387 6388 *) Let 'openssl req' fail if an argument to '-newkey' is not 6389 recognized instead of using RSA as a default. 6390 [Bodo Moeller] 6391 6392 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 6393 As these are not official, they are not included in "ALL"; 6394 the "ECCdraft" ciphersuite group alias can be used to select them. 6395 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 6396 6397 *) Add ECDH engine support. 6398 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 6399 6400 *) Add ECDH in new directory crypto/ecdh/. 6401 [Douglas Stebila (Sun Microsystems Laboratories)] 6402 6403 *) Let BN_rand_range() abort with an error after 100 iterations 6404 without success (which indicates a broken PRNG). 6405 [Bodo Moeller] 6406 6407 *) Change BN_mod_sqrt() so that it verifies that the input value 6408 is really the square of the return value. (Previously, 6409 BN_mod_sqrt would show GIGO behaviour.) 6410 [Bodo Moeller] 6411 6412 *) Add named elliptic curves over binary fields from X9.62, SECG, 6413 and WAP/WTLS; add OIDs that were still missing. 6414 6415 [Sheueling Chang Shantz and Douglas Stebila 6416 (Sun Microsystems Laboratories)] 6417 6418 *) Extend the EC library for elliptic curves over binary fields 6419 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 6420 New EC_METHOD: 6421 6422 EC_GF2m_simple_method 6423 6424 New API functions: 6425 6426 EC_GROUP_new_curve_GF2m 6427 EC_GROUP_set_curve_GF2m 6428 EC_GROUP_get_curve_GF2m 6429 EC_POINT_set_affine_coordinates_GF2m 6430 EC_POINT_get_affine_coordinates_GF2m 6431 EC_POINT_set_compressed_coordinates_GF2m 6432 6433 Point compression for binary fields is disabled by default for 6434 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 6435 enable it). 6436 6437 As binary polynomials are represented as BIGNUMs, various members 6438 of the EC_GROUP and EC_POINT data structures can be shared 6439 between the implementations for prime fields and binary fields; 6440 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 6441 are essentially identical to their ..._GFp counterparts. 6442 (For simplicity, the '..._GFp' prefix has been dropped from 6443 various internal method names.) 6444 6445 An internal 'field_div' method (similar to 'field_mul' and 6446 'field_sqr') has been added; this is used only for binary fields. 6447 6448 [Sheueling Chang Shantz and Douglas Stebila 6449 (Sun Microsystems Laboratories)] 6450 6451 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 6452 through methods ('mul', 'precompute_mult'). 6453 6454 The generic implementations (now internally called 'ec_wNAF_mul' 6455 and 'ec_wNAF_precomputed_mult') remain the default if these 6456 methods are undefined. 6457 6458 [Sheueling Chang Shantz and Douglas Stebila 6459 (Sun Microsystems Laboratories)] 6460 6461 *) New function EC_GROUP_get_degree, which is defined through 6462 EC_METHOD. For curves over prime fields, this returns the bit 6463 length of the modulus. 6464 6465 [Sheueling Chang Shantz and Douglas Stebila 6466 (Sun Microsystems Laboratories)] 6467 6468 *) New functions EC_GROUP_dup, EC_POINT_dup. 6469 (These simply call ..._new and ..._copy). 6470 6471 [Sheueling Chang Shantz and Douglas Stebila 6472 (Sun Microsystems Laboratories)] 6473 6474 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 6475 Polynomials are represented as BIGNUMs (where the sign bit is not 6476 used) in the following functions [macros]: 6477 6478 BN_GF2m_add 6479 BN_GF2m_sub [= BN_GF2m_add] 6480 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 6481 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 6482 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 6483 BN_GF2m_mod_inv 6484 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 6485 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 6486 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 6487 BN_GF2m_cmp [= BN_ucmp] 6488 6489 (Note that only the 'mod' functions are actually for fields GF(2^m). 6490 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 6491 6492 For some functions, an the irreducible polynomial defining a 6493 field can be given as an 'unsigned int[]' with strictly 6494 decreasing elements giving the indices of those bits that are set; 6495 i.e., p[] represents the polynomial 6496 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 6497 where 6498 p[0] > p[1] > ... > p[k] = 0. 6499 This applies to the following functions: 6500 6501 BN_GF2m_mod_arr 6502 BN_GF2m_mod_mul_arr 6503 BN_GF2m_mod_sqr_arr 6504 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 6505 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 6506 BN_GF2m_mod_exp_arr 6507 BN_GF2m_mod_sqrt_arr 6508 BN_GF2m_mod_solve_quad_arr 6509 BN_GF2m_poly2arr 6510 BN_GF2m_arr2poly 6511 6512 Conversion can be performed by the following functions: 6513 6514 BN_GF2m_poly2arr 6515 BN_GF2m_arr2poly 6516 6517 bntest.c has additional tests for binary polynomial arithmetic. 6518 6519 Two implementations for BN_GF2m_mod_div() are available. 6520 The default algorithm simply uses BN_GF2m_mod_inv() and 6521 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 6522 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 6523 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 6524 6525 [Sheueling Chang Shantz and Douglas Stebila 6526 (Sun Microsystems Laboratories)] 6527 6528 *) Add new error code 'ERR_R_DISABLED' that can be used when some 6529 functionality is disabled at compile-time. 6530 [Douglas Stebila <douglas.stebila@sun.com>] 6531 6532 *) Change default behaviour of 'openssl asn1parse' so that more 6533 information is visible when viewing, e.g., a certificate: 6534 6535 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 6536 mode the content of non-printable OCTET STRINGs is output in a 6537 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 6538 avoid the appearance of a printable string. 6539 [Nils Larsch <nla@trustcenter.de>] 6540 6541 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 6542 functions 6543 EC_GROUP_set_asn1_flag() 6544 EC_GROUP_get_asn1_flag() 6545 EC_GROUP_set_point_conversion_form() 6546 EC_GROUP_get_point_conversion_form() 6547 These control ASN1 encoding details: 6548 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 6549 has been set to OPENSSL_EC_NAMED_CURVE. 6550 - Points are encoded in uncompressed form by default; options for 6551 asn1_for are as for point2oct, namely 6552 POINT_CONVERSION_COMPRESSED 6553 POINT_CONVERSION_UNCOMPRESSED 6554 POINT_CONVERSION_HYBRID 6555 6556 Also add 'seed' and 'seed_len' members to EC_GROUP with access 6557 functions 6558 EC_GROUP_set_seed() 6559 EC_GROUP_get0_seed() 6560 EC_GROUP_get_seed_len() 6561 This is used only for ASN1 purposes (so far). 6562 [Nils Larsch <nla@trustcenter.de>] 6563 6564 *) Add 'field_type' member to EC_METHOD, which holds the NID 6565 of the appropriate field type OID. The new function 6566 EC_METHOD_get_field_type() returns this value. 6567 [Nils Larsch <nla@trustcenter.de>] 6568 6569 *) Add functions 6570 EC_POINT_point2bn() 6571 EC_POINT_bn2point() 6572 EC_POINT_point2hex() 6573 EC_POINT_hex2point() 6574 providing useful interfaces to EC_POINT_point2oct() and 6575 EC_POINT_oct2point(). 6576 [Nils Larsch <nla@trustcenter.de>] 6577 6578 *) Change internals of the EC library so that the functions 6579 EC_GROUP_set_generator() 6580 EC_GROUP_get_generator() 6581 EC_GROUP_get_order() 6582 EC_GROUP_get_cofactor() 6583 are implemented directly in crypto/ec/ec_lib.c and not dispatched 6584 to methods, which would lead to unnecessary code duplication when 6585 adding different types of curves. 6586 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 6587 6588 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 6589 arithmetic, and such that modified wNAFs are generated 6590 (which avoid length expansion in many cases). 6591 [Bodo Moeller] 6592 6593 *) Add a function EC_GROUP_check_discriminant() (defined via 6594 EC_METHOD) that verifies that the curve discriminant is non-zero. 6595 6596 Add a function EC_GROUP_check() that makes some sanity tests 6597 on a EC_GROUP, its generator and order. This includes 6598 EC_GROUP_check_discriminant(). 6599 [Nils Larsch <nla@trustcenter.de>] 6600 6601 *) Add ECDSA in new directory crypto/ecdsa/. 6602 6603 Add applications 'openssl ecparam' and 'openssl ecdsa' 6604 (these are based on 'openssl dsaparam' and 'openssl dsa'). 6605 6606 ECDSA support is also included in various other files across the 6607 library. Most notably, 6608 - 'openssl req' now has a '-newkey ecdsa:file' option; 6609 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 6610 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 6611 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 6612 them suitable for ECDSA where domain parameters must be 6613 extracted before the specific public key; 6614 - ECDSA engine support has been added. 6615 [Nils Larsch <nla@trustcenter.de>] 6616 6617 *) Include some named elliptic curves, and add OIDs from X9.62, 6618 SECG, and WAP/WTLS. Each curve can be obtained from the new 6619 function 6620 EC_GROUP_new_by_curve_name(), 6621 and the list of available named curves can be obtained with 6622 EC_get_builtin_curves(). 6623 Also add a 'curve_name' member to EC_GROUP objects, which can be 6624 accessed via 6625 EC_GROUP_set_curve_name() 6626 EC_GROUP_get_curve_name() 6627 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 6628 6629 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 6630 was actually never needed) and in BN_mul(). The removal in BN_mul() 6631 required a small change in bn_mul_part_recursive() and the addition 6632 of the functions bn_cmp_part_words(), bn_sub_part_words() and 6633 bn_add_part_words(), which do the same thing as bn_cmp_words(), 6634 bn_sub_words() and bn_add_words() except they take arrays with 6635 differing sizes. 6636 [Richard Levitte] 6637 6638 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 6639 6640 *) Cleanse PEM buffers before freeing them since they may contain 6641 sensitive data. 6642 [Benjamin Bennett <ben@psc.edu>] 6643 6644 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 6645 a ciphersuite string such as "DEFAULT:RSA" cannot enable 6646 authentication-only ciphersuites. 6647 [Bodo Moeller] 6648 6649 *) Since AES128 and AES256 share a single mask bit in the logic of 6650 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 6651 kludge to work properly if AES128 is available and AES256 isn't. 6652 [Victor Duchovni] 6653 6654 *) Expand security boundary to match 1.1.1 module. 6655 [Steve Henson] 6656 6657 *) Remove redundant features: hash file source, editing of test vectors 6658 modify fipsld to use external fips_premain.c signature. 6659 [Steve Henson] 6660 6661 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 6662 run algorithm test programs. 6663 [Steve Henson] 6664 6665 *) Make algorithm test programs more tolerant of whitespace. 6666 [Steve Henson] 6667 6668 *) Have SSL/TLS server implementation tolerate "mismatched" record 6669 protocol version while receiving ClientHello even if the 6670 ClientHello is fragmented. (The server can't insist on the 6671 particular protocol version it has chosen before the ServerHello 6672 message has informed the client about his choice.) 6673 [Bodo Moeller] 6674 6675 *) Load error codes if they are not already present instead of using a 6676 static variable. This allows them to be cleanly unloaded and reloaded. 6677 [Steve Henson] 6678 6679 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 6680 6681 *) Introduce limits to prevent malicious keys being able to 6682 cause a denial of service. (CVE-2006-2940) 6683 [Steve Henson, Bodo Moeller] 6684 6685 *) Fix ASN.1 parsing of certain invalid structures that can result 6686 in a denial of service. (CVE-2006-2937) [Steve Henson] 6687 6688 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 6689 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 6690 6691 *) Fix SSL client code which could crash if connecting to a 6692 malicious SSLv2 server. (CVE-2006-4343) 6693 [Tavis Ormandy and Will Drewry, Google Security Team] 6694 6695 *) Change ciphersuite string processing so that an explicit 6696 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 6697 will no longer include "AES128-SHA"), and any other similar 6698 ciphersuite (same bitmap) from *other* protocol versions (so that 6699 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 6700 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 6701 changes from 0.9.8b and 0.9.8d. 6702 [Bodo Moeller] 6703 6704 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 6705 6706 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 6707 (CVE-2006-4339) [Ben Laurie and Google Security Team] 6708 6709 *) Change the Unix randomness entropy gathering to use poll() when 6710 possible instead of select(), since the latter has some 6711 undesirable limitations. 6712 [Darryl Miles via Richard Levitte and Bodo Moeller] 6713 6714 *) Disable rogue ciphersuites: 6715 6716 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 6717 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 6718 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 6719 6720 The latter two were purportedly from 6721 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 6722 appear there. 6723 6724 Also deactivate the remaining ciphersuites from 6725 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 6726 unofficial, and the ID has long expired. 6727 [Bodo Moeller] 6728 6729 *) Fix RSA blinding Heisenbug (problems sometimes occurred on 6730 dual-core machines) and other potential thread-safety issues. 6731 [Bodo Moeller] 6732 6733 Changes between 0.9.7i and 0.9.7j [04 May 2006] 6734 6735 *) Adapt fipsld and the build system to link against the validated FIPS 6736 module in FIPS mode. 6737 [Steve Henson] 6738 6739 *) Fixes for VC++ 2005 build under Windows. 6740 [Steve Henson] 6741 6742 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 6743 from a Windows bash shell such as MSYS. It is autodetected from the 6744 "config" script when run from a VC++ environment. Modify standard VC++ 6745 build to use fipscanister.o from the GNU make build. 6746 [Steve Henson] 6747 6748 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 6749 6750 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 6751 The value now differs depending on if you build for FIPS or not. 6752 BEWARE! A program linked with a shared FIPSed libcrypto can't be 6753 safely run with a non-FIPSed libcrypto, as it may crash because of 6754 the difference induced by this change. 6755 [Andy Polyakov] 6756 6757 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 6758 6759 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 6760 (part of SSL_OP_ALL). This option used to disable the 6761 countermeasure against man-in-the-middle protocol-version 6762 rollback in the SSL 2.0 server implementation, which is a bad 6763 idea. (CVE-2005-2969) 6764 6765 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 6766 for Information Security, National Institute of Advanced Industrial 6767 Science and Technology [AIST], Japan)] 6768 6769 *) Minimal support for X9.31 signatures and PSS padding modes. This is 6770 mainly for FIPS compliance and not fully integrated at this stage. 6771 [Steve Henson] 6772 6773 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 6774 the exponentiation using a fixed-length exponent. (Otherwise, 6775 the information leaked through timing could expose the secret key 6776 after many signatures; cf. Bleichenbacher's attack on DSA with 6777 biased k.) 6778 [Bodo Moeller] 6779 6780 *) Make a new fixed-window mod_exp implementation the default for 6781 RSA, DSA, and DH private-key operations so that the sequence of 6782 squares and multiplies and the memory access pattern are 6783 independent of the particular secret key. This will mitigate 6784 cache-timing and potential related attacks. 6785 6786 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 6787 and this is automatically used by BN_mod_exp_mont() if the new flag 6788 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 6789 will use this BN flag for private exponents unless the flag 6790 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 6791 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 6792 6793 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 6794 6795 *) Change the client implementation for SSLv23_method() and 6796 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 6797 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 6798 (Previously, the SSL 2.0 backwards compatible Client Hello 6799 message format would be used even with SSL_OP_NO_SSLv2.) 6800 [Bodo Moeller] 6801 6802 *) Add support for smime-type MIME parameter in S/MIME messages which some 6803 clients need. 6804 [Steve Henson] 6805 6806 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 6807 a threadsafe manner. Modify rsa code to use new function and add calls 6808 to dsa and dh code (which had race conditions before). 6809 [Steve Henson] 6810 6811 *) Include the fixed error library code in the C error file definitions 6812 instead of fixing them up at runtime. This keeps the error code 6813 structures constant. 6814 [Steve Henson] 6815 6816 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 6817 6818 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 6819 OpenSSL 0.9.8.] 6820 6821 *) Fixes for newer kerberos headers. NB: the casts are needed because 6822 the 'length' field is signed on one version and unsigned on another 6823 with no (?) obvious way to tell the difference, without these VC++ 6824 complains. Also the "definition" of FAR (blank) is no longer included 6825 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 6826 some needed definitions. 6827 [Steve Henson] 6828 6829 *) Undo Cygwin change. 6830 [Ulf Möller] 6831 6832 *) Added support for proxy certificates according to RFC 3820. 6833 Because they may be a security thread to unaware applications, 6834 they must be explicitly allowed in run-time. See 6835 docs/HOWTO/proxy_certificates.txt for further information. 6836 [Richard Levitte] 6837 6838 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 6839 6840 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 6841 server and client random values. Previously 6842 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 6843 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 6844 6845 This change has negligible security impact because: 6846 6847 1. Server and client random values still have 24 bytes of pseudo random 6848 data. 6849 6850 2. Server and client random values are sent in the clear in the initial 6851 handshake. 6852 6853 3. The master secret is derived using the premaster secret (48 bytes in 6854 size for static RSA ciphersuites) as well as client server and random 6855 values. 6856 6857 The OpenSSL team would like to thank the UK NISCC for bringing this issue 6858 to our attention. 6859 6860 [Stephen Henson, reported by UK NISCC] 6861 6862 *) Use Windows randomness collection on Cygwin. 6863 [Ulf Möller] 6864 6865 *) Fix hang in EGD/PRNGD query when communication socket is closed 6866 prematurely by EGD/PRNGD. 6867 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014] 6868 6869 *) Prompt for pass phrases when appropriate for PKCS12 input format. 6870 [Steve Henson] 6871 6872 *) Back-port of selected performance improvements from development 6873 branch, as well as improved support for PowerPC platforms. 6874 [Andy Polyakov] 6875 6876 *) Add lots of checks for memory allocation failure, error codes to indicate 6877 failure and freeing up memory if a failure occurs. 6878 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 6879 6880 *) Add new -passin argument to dgst. 6881 [Steve Henson] 6882 6883 *) Perform some character comparisons of different types in X509_NAME_cmp: 6884 this is needed for some certificates that re-encode DNs into UTF8Strings 6885 (in violation of RFC3280) and can't or won't issue name rollover 6886 certificates. 6887 [Steve Henson] 6888 6889 *) Make an explicit check during certificate validation to see that 6890 the CA setting in each certificate on the chain is correct. As a 6891 side effect always do the following basic checks on extensions, 6892 not just when there's an associated purpose to the check: 6893 6894 - if there is an unhandled critical extension (unless the user 6895 has chosen to ignore this fault) 6896 - if the path length has been exceeded (if one is set at all) 6897 - that certain extensions fit the associated purpose (if one has 6898 been given) 6899 [Richard Levitte] 6900 6901 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 6902 6903 *) Avoid a race condition when CRLs are checked in a multi threaded 6904 environment. This would happen due to the reordering of the revoked 6905 entries during signature checking and serial number lookup. Now the 6906 encoding is cached and the serial number sort performed under a lock. 6907 Add new STACK function sk_is_sorted(). 6908 [Steve Henson] 6909 6910 *) Add Delta CRL to the extension code. 6911 [Steve Henson] 6912 6913 *) Various fixes to s3_pkt.c so alerts are sent properly. 6914 [David Holmes <d.holmes@f5.com>] 6915 6916 *) Reduce the chances of duplicate issuer name and serial numbers (in 6917 violation of RFC3280) using the OpenSSL certificate creation utilities. 6918 This is done by creating a random 64 bit value for the initial serial 6919 number when a serial number file is created or when a self signed 6920 certificate is created using 'openssl req -x509'. The initial serial 6921 number file is created using 'openssl x509 -next_serial' in CA.pl 6922 rather than being initialized to 1. 6923 [Steve Henson] 6924 6925 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 6926 6927 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 6928 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 6929 [Joe Orton, Steve Henson] 6930 6931 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 6932 (CVE-2004-0112) 6933 [Joe Orton, Steve Henson] 6934 6935 *) Make it possible to have multiple active certificates with the same 6936 subject in the CA index file. This is done only if the keyword 6937 'unique_subject' is set to 'no' in the main CA section (default 6938 if 'CA_default') of the configuration file. The value is saved 6939 with the database itself in a separate index attribute file, 6940 named like the index file with '.attr' appended to the name. 6941 [Richard Levitte] 6942 6943 *) X509 verify fixes. Disable broken certificate workarounds when 6944 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 6945 keyUsage extension present. Don't accept CRLs with unhandled critical 6946 extensions: since verify currently doesn't process CRL extensions this 6947 rejects a CRL with *any* critical extensions. Add new verify error codes 6948 for these cases. 6949 [Steve Henson] 6950 6951 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 6952 A clarification of RFC2560 will require the use of OCTET STRINGs and 6953 some implementations cannot handle the current raw format. Since OpenSSL 6954 copies and compares OCSP nonces as opaque blobs without any attempt at 6955 parsing them this should not create any compatibility issues. 6956 [Steve Henson] 6957 6958 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 6959 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 6960 this HMAC (and other) operations are several times slower than OpenSSL 6961 < 0.9.7. 6962 [Steve Henson] 6963 6964 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 6965 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 6966 6967 *) Use the correct content when signing type "other". 6968 [Steve Henson] 6969 6970 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 6971 6972 *) Fix various bugs revealed by running the NISCC test suite: 6973 6974 Stop out of bounds reads in the ASN1 code when presented with 6975 invalid tags (CVE-2003-0543 and CVE-2003-0544). 6976 6977 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 6978 6979 If verify callback ignores invalid public key errors don't try to check 6980 certificate signature with the NULL public key. 6981 6982 [Steve Henson] 6983 6984 *) New -ignore_err option in ocsp application to stop the server 6985 exiting on the first error in a request. 6986 [Steve Henson] 6987 6988 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 6989 if the server requested one: as stated in TLS 1.0 and SSL 3.0 6990 specifications. 6991 [Steve Henson] 6992 6993 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 6994 extra data after the compression methods not only for TLS 1.0 6995 but also for SSL 3.0 (as required by the specification). 6996 [Bodo Moeller; problem pointed out by Matthias Loepfe] 6997 6998 *) Change X509_certificate_type() to mark the key as exported/exportable 6999 when it's 512 *bits* long, not 512 bytes. 7000 [Richard Levitte] 7001 7002 *) Change AES_cbc_encrypt() so it outputs exact multiple of 7003 blocks during encryption. 7004 [Richard Levitte] 7005 7006 *) Various fixes to base64 BIO and non blocking I/O. On write 7007 flushes were not handled properly if the BIO retried. On read 7008 data was not being buffered properly and had various logic bugs. 7009 This also affects blocking I/O when the data being decoded is a 7010 certain size. 7011 [Steve Henson] 7012 7013 *) Various S/MIME bugfixes and compatibility changes: 7014 output correct application/pkcs7 MIME type if 7015 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 7016 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 7017 of files as .eml work). Correctly handle very long lines in MIME 7018 parser. 7019 [Steve Henson] 7020 7021 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 7022 7023 *) Countermeasure against the Klima-Pokorny-Rosa extension of 7024 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 7025 a protocol version number mismatch like a decryption error 7026 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 7027 [Bodo Moeller] 7028 7029 *) Turn on RSA blinding by default in the default implementation 7030 to avoid a timing attack. Applications that don't want it can call 7031 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 7032 They would be ill-advised to do so in most cases. 7033 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 7034 7035 *) Change RSA blinding code so that it works when the PRNG is not 7036 seeded (in this case, the secret RSA exponent is abused as 7037 an unpredictable seed -- if it is not unpredictable, there 7038 is no point in blinding anyway). Make RSA blinding thread-safe 7039 by remembering the creator's thread ID in rsa->blinding and 7040 having all other threads use local one-time blinding factors 7041 (this requires more computation than sharing rsa->blinding, but 7042 avoids excessive locking; and if an RSA object is not shared 7043 between threads, blinding will still be very fast). 7044 [Bodo Moeller] 7045 7046 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 7047 ENGINE as defaults for all supported algorithms irrespective of 7048 the 'flags' parameter. 'flags' is now honoured, so applications 7049 should make sure they are passing it correctly. 7050 [Geoff Thorpe] 7051 7052 *) Target "mingw" now allows native Windows code to be generated in 7053 the Cygwin environment as well as with the MinGW compiler. 7054 [Ulf Moeller] 7055 7056 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 7057 7058 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 7059 via timing by performing a MAC computation even if incorrect 7060 block cipher padding has been found. This is a countermeasure 7061 against active attacks where the attacker has to distinguish 7062 between bad padding and a MAC verification error. (CVE-2003-0078) 7063 7064 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 7065 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 7066 Martin Vuagnoux (EPFL, Ilion)] 7067 7068 *) Make the no-err option work as intended. The intention with no-err 7069 is not to have the whole error stack handling routines removed from 7070 libcrypto, it's only intended to remove all the function name and 7071 reason texts, thereby removing some of the footprint that may not 7072 be interesting if those errors aren't displayed anyway. 7073 7074 NOTE: it's still possible for any application or module to have its 7075 own set of error texts inserted. The routines are there, just not 7076 used by default when no-err is given. 7077 [Richard Levitte] 7078 7079 *) Add support for FreeBSD on IA64. 7080 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 7081 7082 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 7083 Kerberos function mit_des_cbc_cksum(). Before this change, 7084 the value returned by DES_cbc_cksum() was like the one from 7085 mit_des_cbc_cksum(), except the bytes were swapped. 7086 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 7087 7088 *) Allow an application to disable the automatic SSL chain building. 7089 Before this a rather primitive chain build was always performed in 7090 ssl3_output_cert_chain(): an application had no way to send the 7091 correct chain if the automatic operation produced an incorrect result. 7092 7093 Now the chain builder is disabled if either: 7094 7095 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 7096 7097 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 7098 7099 The reasoning behind this is that an application would not want the 7100 auto chain building to take place if extra chain certificates are 7101 present and it might also want a means of sending no additional 7102 certificates (for example the chain has two certificates and the 7103 root is omitted). 7104 [Steve Henson] 7105 7106 *) Add the possibility to build without the ENGINE framework. 7107 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 7108 7109 *) Under Win32 gmtime() can return NULL: check return value in 7110 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 7111 [Steve Henson] 7112 7113 *) DSA routines: under certain error conditions uninitialized BN objects 7114 could be freed. Solution: make sure initialization is performed early 7115 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 7116 Nils Larsch <nla@trustcenter.de> via PR#459) 7117 [Lutz Jaenicke] 7118 7119 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 7120 checked on reconnect on the client side, therefore session resumption 7121 could still fail with a "ssl session id is different" error. This 7122 behaviour is masked when SSL_OP_ALL is used due to 7123 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 7124 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 7125 followup to PR #377. 7126 [Lutz Jaenicke] 7127 7128 *) IA-32 assembler support enhancements: unified ELF targets, support 7129 for SCO/Caldera platforms, fix for Cygwin shared build. 7130 [Andy Polyakov] 7131 7132 *) Add support for FreeBSD on sparc64. As a consequence, support for 7133 FreeBSD on non-x86 processors is separate from x86 processors on 7134 the config script, much like the NetBSD support. 7135 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 7136 7137 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 7138 7139 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 7140 OpenSSL 0.9.7.] 7141 7142 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 7143 code (06) was taken as the first octet of the session ID and the last 7144 octet was ignored consequently. As a result SSLv2 client side session 7145 caching could not have worked due to the session ID mismatch between 7146 client and server. 7147 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 7148 PR #377. 7149 [Lutz Jaenicke] 7150 7151 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 7152 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 7153 removed entirely. 7154 [Richard Levitte] 7155 7156 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 7157 seems that in spite of existing for more than a year, many application 7158 author have done nothing to provide the necessary callbacks, which 7159 means that this particular engine will not work properly anywhere. 7160 This is a very unfortunate situation which forces us, in the name 7161 of usability, to give the hw_ncipher.c a static lock, which is part 7162 of libcrypto. 7163 NOTE: This is for the 0.9.7 series ONLY. This hack will never 7164 appear in 0.9.8 or later. We EXPECT application authors to have 7165 dealt properly with this when 0.9.8 is released (unless we actually 7166 make such changes in the libcrypto locking code that changes will 7167 have to be made anyway). 7168 [Richard Levitte] 7169 7170 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 7171 octets have been read, EOF or an error occurs. Without this change 7172 some truncated ASN1 structures will not produce an error. 7173 [Steve Henson] 7174 7175 *) Disable Heimdal support, since it hasn't been fully implemented. 7176 Still give the possibility to force the use of Heimdal, but with 7177 warnings and a request that patches get sent to openssl-dev. 7178 [Richard Levitte] 7179 7180 *) Add the VC-CE target, introduce the WINCE sysname, and add 7181 INSTALL.WCE and appropriate conditionals to make it build. 7182 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 7183 7184 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 7185 cygssl-x.y.z.dll, where x, y and z are the major, minor and 7186 edit numbers of the version. 7187 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 7188 7189 *) Introduce safe string copy and catenation functions 7190 (BUF_strlcpy() and BUF_strlcat()). 7191 [Ben Laurie (CHATS) and Richard Levitte] 7192 7193 *) Avoid using fixed-size buffers for one-line DNs. 7194 [Ben Laurie (CHATS)] 7195 7196 *) Add BUF_MEM_grow_clean() to avoid information leakage when 7197 resizing buffers containing secrets, and use where appropriate. 7198 [Ben Laurie (CHATS)] 7199 7200 *) Avoid using fixed size buffers for configuration file location. 7201 [Ben Laurie (CHATS)] 7202 7203 *) Avoid filename truncation for various CA files. 7204 [Ben Laurie (CHATS)] 7205 7206 *) Use sizeof in preference to magic numbers. 7207 [Ben Laurie (CHATS)] 7208 7209 *) Avoid filename truncation in cert requests. 7210 [Ben Laurie (CHATS)] 7211 7212 *) Add assertions to check for (supposedly impossible) buffer 7213 overflows. 7214 [Ben Laurie (CHATS)] 7215 7216 *) Don't cache truncated DNS entries in the local cache (this could 7217 potentially lead to a spoofing attack). 7218 [Ben Laurie (CHATS)] 7219 7220 *) Fix various buffers to be large enough for hex/decimal 7221 representations in a platform independent manner. 7222 [Ben Laurie (CHATS)] 7223 7224 *) Add CRYPTO_realloc_clean() to avoid information leakage when 7225 resizing buffers containing secrets, and use where appropriate. 7226 [Ben Laurie (CHATS)] 7227 7228 *) Add BIO_indent() to avoid much slightly worrying code to do 7229 indents. 7230 [Ben Laurie (CHATS)] 7231 7232 *) Convert sprintf()/BIO_puts() to BIO_printf(). 7233 [Ben Laurie (CHATS)] 7234 7235 *) buffer_gets() could terminate with the buffer only half 7236 full. Fixed. 7237 [Ben Laurie (CHATS)] 7238 7239 *) Add assertions to prevent user-supplied crypto functions from 7240 overflowing internal buffers by having large block sizes, etc. 7241 [Ben Laurie (CHATS)] 7242 7243 *) New OPENSSL_assert() macro (similar to assert(), but enabled 7244 unconditionally). 7245 [Ben Laurie (CHATS)] 7246 7247 *) Eliminate unused copy of key in RC4. 7248 [Ben Laurie (CHATS)] 7249 7250 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 7251 [Ben Laurie (CHATS)] 7252 7253 *) Fix off-by-one error in EGD path. 7254 [Ben Laurie (CHATS)] 7255 7256 *) If RANDFILE path is too long, ignore instead of truncating. 7257 [Ben Laurie (CHATS)] 7258 7259 *) Eliminate unused and incorrectly sized X.509 structure 7260 CBCParameter. 7261 [Ben Laurie (CHATS)] 7262 7263 *) Eliminate unused and dangerous function knumber(). 7264 [Ben Laurie (CHATS)] 7265 7266 *) Eliminate unused and dangerous structure, KSSL_ERR. 7267 [Ben Laurie (CHATS)] 7268 7269 *) Protect against overlong session ID context length in an encoded 7270 session object. Since these are local, this does not appear to be 7271 exploitable. 7272 [Ben Laurie (CHATS)] 7273 7274 *) Change from security patch (see 0.9.6e below) that did not affect 7275 the 0.9.6 release series: 7276 7277 Remote buffer overflow in SSL3 protocol - an attacker could 7278 supply an oversized master key in Kerberos-enabled versions. 7279 (CVE-2002-0657) 7280 [Ben Laurie (CHATS)] 7281 7282 *) Change the SSL kerb5 codes to match RFC 2712. 7283 [Richard Levitte] 7284 7285 *) Make -nameopt work fully for req and add -reqopt switch. 7286 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 7287 7288 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 7289 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 7290 7291 *) Make sure tests can be performed even if the corresponding algorithms 7292 have been removed entirely. This was also the last step to make 7293 OpenSSL compilable with DJGPP under all reasonable conditions. 7294 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 7295 7296 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 7297 to allow version independent disabling of normally unselected ciphers, 7298 which may be activated as a side-effect of selecting a single cipher. 7299 7300 (E.g., cipher list string "RSA" enables ciphersuites that are left 7301 out of "ALL" because they do not provide symmetric encryption. 7302 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 7303 [Lutz Jaenicke, Bodo Moeller] 7304 7305 *) Add appropriate support for separate platform-dependent build 7306 directories. The recommended way to make a platform-dependent 7307 build directory is the following (tested on Linux), maybe with 7308 some local tweaks: 7309 7310 # Place yourself outside of the OpenSSL source tree. In 7311 # this example, the environment variable OPENSSL_SOURCE 7312 # is assumed to contain the absolute OpenSSL source directory. 7313 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 7314 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 7315 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 7316 mkdir -p `dirname $F` 7317 ln -s $OPENSSL_SOURCE/$F $F 7318 done 7319 7320 To be absolutely sure not to disturb the source tree, a "make clean" 7321 is a good thing. If it isn't successful, don't worry about it, 7322 it probably means the source directory is very clean. 7323 [Richard Levitte] 7324 7325 *) Make sure any ENGINE control commands make local copies of string 7326 pointers passed to them whenever necessary. Otherwise it is possible 7327 the caller may have overwritten (or deallocated) the original string 7328 data when a later ENGINE operation tries to use the stored values. 7329 [Götz Babin-Ebell <babinebell@trustcenter.de>] 7330 7331 *) Improve diagnostics in file reading and command-line digests. 7332 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 7333 7334 *) Add AES modes CFB and OFB to the object database. Correct an 7335 error in AES-CFB decryption. 7336 [Richard Levitte] 7337 7338 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 7339 allows existing EVP_CIPHER_CTX structures to be reused after 7340 calling EVP_*Final(). This behaviour is used by encryption 7341 BIOs and some applications. This has the side effect that 7342 applications must explicitly clean up cipher contexts with 7343 EVP_CIPHER_CTX_cleanup() or they will leak memory. 7344 [Steve Henson] 7345 7346 *) Check the values of dna and dnb in bn_mul_recursive before calling 7347 bn_mul_comba (a non zero value means the a or b arrays do not contain 7348 n2 elements) and fallback to bn_mul_normal if either is not zero. 7349 [Steve Henson] 7350 7351 *) Fix escaping of non-ASCII characters when using the -subj option 7352 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 7353 [Lutz Jaenicke] 7354 7355 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 7356 form for "surname", serialNumber has no short form. 7357 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 7358 therefore remove "mail" short name for "internet 7". 7359 The OID for unique identifiers in X509 certificates is 7360 x500UniqueIdentifier, not uniqueIdentifier. 7361 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 7362 [Lutz Jaenicke] 7363 7364 *) Add an "init" command to the ENGINE config module and auto initialize 7365 ENGINEs. Without any "init" command the ENGINE will be initialized 7366 after all ctrl commands have been executed on it. If init=1 the 7367 ENGINE is initialized at that point (ctrls before that point are run 7368 on the uninitialized ENGINE and after on the initialized one). If 7369 init=0 then the ENGINE will not be initialized at all. 7370 [Steve Henson] 7371 7372 *) Fix the 'app_verify_callback' interface so that the user-defined 7373 argument is actually passed to the callback: In the 7374 SSL_CTX_set_cert_verify_callback() prototype, the callback 7375 declaration has been changed from 7376 int (*cb)() 7377 into 7378 int (*cb)(X509_STORE_CTX *,void *); 7379 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 7380 i=s->ctx->app_verify_callback(&ctx) 7381 has been changed into 7382 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 7383 7384 To update applications using SSL_CTX_set_cert_verify_callback(), 7385 a dummy argument can be added to their callback functions. 7386 [D. K. Smetters <smetters@parc.xerox.com>] 7387 7388 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 7389 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 7390 7391 *) Add and OPENSSL_LOAD_CONF define which will cause 7392 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 7393 This allows older applications to transparently support certain 7394 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 7395 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 7396 load the config file and OPENSSL_add_all_algorithms_conf() which will 7397 always load it have also been added. 7398 [Steve Henson] 7399 7400 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 7401 Adjust NIDs and EVP layer. 7402 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 7403 7404 *) Config modules support in openssl utility. 7405 7406 Most commands now load modules from the config file, 7407 though in a few (such as version) this isn't done 7408 because it couldn't be used for anything. 7409 7410 In the case of ca and req the config file used is 7411 the same as the utility itself: that is the -config 7412 command line option can be used to specify an 7413 alternative file. 7414 [Steve Henson] 7415 7416 *) Move default behaviour from OPENSSL_config(). If appname is NULL 7417 use "openssl_conf" if filename is NULL use default openssl config file. 7418 [Steve Henson] 7419 7420 *) Add an argument to OPENSSL_config() to allow the use of an alternative 7421 config section name. Add a new flag to tolerate a missing config file 7422 and move code to CONF_modules_load_file(). 7423 [Steve Henson] 7424 7425 *) Support for crypto accelerator cards from Accelerated Encryption 7426 Processing, www.aep.ie. (Use engine 'aep') 7427 The support was copied from 0.9.6c [engine] and adapted/corrected 7428 to work with the new engine framework. 7429 [AEP Inc. and Richard Levitte] 7430 7431 *) Support for SureWare crypto accelerator cards from Baltimore 7432 Technologies. (Use engine 'sureware') 7433 The support was copied from 0.9.6c [engine] and adapted 7434 to work with the new engine framework. 7435 [Richard Levitte] 7436 7437 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 7438 make the newer ENGINE framework commands for the CHIL engine work. 7439 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 7440 7441 *) Make it possible to produce shared libraries on ReliantUNIX. 7442 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 7443 7444 *) Add the configuration target debug-linux-ppro. 7445 Make 'openssl rsa' use the general key loading routines 7446 implemented in apps.c, and make those routines able to 7447 handle the key format FORMAT_NETSCAPE and the variant 7448 FORMAT_IISSGC. 7449 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 7450 7451 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 7452 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 7453 7454 *) Add -keyform to rsautl, and document -engine. 7455 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 7456 7457 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 7458 BIO_R_NO_SUCH_FILE error code rather than the generic 7459 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 7460 [Ben Laurie] 7461 7462 *) Add new functions 7463 ERR_peek_last_error 7464 ERR_peek_last_error_line 7465 ERR_peek_last_error_line_data. 7466 These are similar to 7467 ERR_peek_error 7468 ERR_peek_error_line 7469 ERR_peek_error_line_data, 7470 but report on the latest error recorded rather than the first one 7471 still in the error queue. 7472 [Ben Laurie, Bodo Moeller] 7473 7474 *) default_algorithms option in ENGINE config module. This allows things 7475 like: 7476 default_algorithms = ALL 7477 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 7478 [Steve Henson] 7479 7480 *) Preliminary ENGINE config module. 7481 [Steve Henson] 7482 7483 *) New experimental application configuration code. 7484 [Steve Henson] 7485 7486 *) Change the AES code to follow the same name structure as all other 7487 symmetric ciphers, and behave the same way. Move everything to 7488 the directory crypto/aes, thereby obsoleting crypto/rijndael. 7489 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 7490 7491 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 7492 [Ben Laurie and Theo de Raadt] 7493 7494 *) Add option to output public keys in req command. 7495 [Massimiliano Pala madwolf@openca.org] 7496 7497 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 7498 (up to about 10% better than before for P-192 and P-224). 7499 [Bodo Moeller] 7500 7501 *) New functions/macros 7502 7503 SSL_CTX_set_msg_callback(ctx, cb) 7504 SSL_CTX_set_msg_callback_arg(ctx, arg) 7505 SSL_set_msg_callback(ssl, cb) 7506 SSL_set_msg_callback_arg(ssl, arg) 7507 7508 to request calling a callback function 7509 7510 void cb(int write_p, int version, int content_type, 7511 const void *buf, size_t len, SSL *ssl, void *arg) 7512 7513 whenever a protocol message has been completely received 7514 (write_p == 0) or sent (write_p == 1). Here 'version' is the 7515 protocol version according to which the SSL library interprets 7516 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 7517 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 7518 the content type as defined in the SSL 3.0/TLS 1.0 protocol 7519 specification (change_cipher_spec(20), alert(21), handshake(22)). 7520 'buf' and 'len' point to the actual message, 'ssl' to the 7521 SSL object, and 'arg' is the application-defined value set by 7522 SSL[_CTX]_set_msg_callback_arg(). 7523 7524 'openssl s_client' and 'openssl s_server' have new '-msg' options 7525 to enable a callback that displays all protocol messages. 7526 [Bodo Moeller] 7527 7528 *) Change the shared library support so shared libraries are built as 7529 soon as the corresponding static library is finished, and thereby get 7530 openssl and the test programs linked against the shared library. 7531 This still only happens when the keyword "shard" has been given to 7532 the configuration scripts. 7533 7534 NOTE: shared library support is still an experimental thing, and 7535 backward binary compatibility is still not guaranteed. 7536 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 7537 7538 *) Add support for Subject Information Access extension. 7539 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 7540 7541 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 7542 additional bytes when new memory had to be allocated, not just 7543 when reusing an existing buffer. 7544 [Bodo Moeller] 7545 7546 *) New command line and configuration option 'utf8' for the req command. 7547 This allows field values to be specified as UTF8 strings. 7548 [Steve Henson] 7549 7550 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 7551 runs for the former and machine-readable output for the latter. 7552 [Ben Laurie] 7553 7554 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 7555 of the e-mail address in the DN (i.e., it will go into a certificate 7556 extension only). The new configuration file option 'email_in_dn = no' 7557 has the same effect. 7558 [Massimiliano Pala madwolf@openca.org] 7559 7560 *) Change all functions with names starting with des_ to be starting 7561 with DES_ instead. Add wrappers that are compatible with libdes, 7562 but are named _ossl_old_des_*. Finally, add macros that map the 7563 des_* symbols to the corresponding _ossl_old_des_* if libdes 7564 compatibility is desired. If OpenSSL 0.9.6c compatibility is 7565 desired, the des_* symbols will be mapped to DES_*, with one 7566 exception. 7567 7568 Since we provide two compatibility mappings, the user needs to 7569 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 7570 compatibility is desired. The default (i.e., when that macro 7571 isn't defined) is OpenSSL 0.9.6c compatibility. 7572 7573 There are also macros that enable and disable the support of old 7574 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 7575 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 7576 are defined, the default will apply: to support the old des routines. 7577 7578 In either case, one must include openssl/des.h to get the correct 7579 definitions. Do not try to just include openssl/des_old.h, that 7580 won't work. 7581 7582 NOTE: This is a major break of an old API into a new one. Software 7583 authors are encouraged to switch to the DES_ style functions. Some 7584 time in the future, des_old.h and the libdes compatibility functions 7585 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 7586 default), and then completely removed. 7587 [Richard Levitte] 7588 7589 *) Test for certificates which contain unsupported critical extensions. 7590 If such a certificate is found during a verify operation it is 7591 rejected by default: this behaviour can be overridden by either 7592 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 7593 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 7594 X509_supported_extension() has also been added which returns 1 if a 7595 particular extension is supported. 7596 [Steve Henson] 7597 7598 *) Modify the behaviour of EVP cipher functions in similar way to digests 7599 to retain compatibility with existing code. 7600 [Steve Henson] 7601 7602 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 7603 compatibility with existing code. In particular the 'ctx' parameter does 7604 not have to be to be initialized before the call to EVP_DigestInit() and 7605 it is tidied up after a call to EVP_DigestFinal(). New function 7606 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 7607 EVP_MD_CTX_copy() changed to not require the destination to be 7608 initialized valid and new function EVP_MD_CTX_copy_ex() added which 7609 requires the destination to be valid. 7610 7611 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 7612 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 7613 [Steve Henson] 7614 7615 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 7616 so that complete 'Handshake' protocol structures are kept in memory 7617 instead of overwriting 'msg_type' and 'length' with 'body' data. 7618 [Bodo Moeller] 7619 7620 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 7621 [Massimo Santin via Richard Levitte] 7622 7623 *) Major restructuring to the underlying ENGINE code. This includes 7624 reduction of linker bloat, separation of pure "ENGINE" manipulation 7625 (initialisation, etc) from functionality dealing with implementations 7626 of specific crypto interfaces. This change also introduces integrated 7627 support for symmetric ciphers and digest implementations - so ENGINEs 7628 can now accelerate these by providing EVP_CIPHER and EVP_MD 7629 implementations of their own. This is detailed in crypto/engine/README 7630 as it couldn't be adequately described here. However, there are a few 7631 API changes worth noting - some RSA, DSA, DH, and RAND functions that 7632 were changed in the original introduction of ENGINE code have now 7633 reverted back - the hooking from this code to ENGINE is now a good 7634 deal more passive and at run-time, operations deal directly with 7635 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 7636 dereferencing through an ENGINE pointer any more. Also, the ENGINE 7637 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 7638 they were not being used by the framework as there is no concept of a 7639 BIGNUM_METHOD and they could not be generalised to the new 7640 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 7641 ENGINE_cpy() has been removed as it cannot be consistently defined in 7642 the new code. 7643 [Geoff Thorpe] 7644 7645 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 7646 [Steve Henson] 7647 7648 *) Change mkdef.pl to sort symbols that get the same entry number, 7649 and make sure the automatically generated functions ERR_load_* 7650 become part of libeay.num as well. 7651 [Richard Levitte] 7652 7653 *) New function SSL_renegotiate_pending(). This returns true once 7654 renegotiation has been requested (either SSL_renegotiate() call 7655 or HelloRequest/ClientHello received from the peer) and becomes 7656 false once a handshake has been completed. 7657 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 7658 sends a HelloRequest, but does not ensure that a handshake takes 7659 place. SSL_renegotiate_pending() is useful for checking if the 7660 client has followed the request.) 7661 [Bodo Moeller] 7662 7663 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 7664 By default, clients may request session resumption even during 7665 renegotiation (if session ID contexts permit); with this option, 7666 session resumption is possible only in the first handshake. 7667 7668 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 7669 more bits available for options that should not be part of 7670 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 7671 [Bodo Moeller] 7672 7673 *) Add some demos for certificate and certificate request creation. 7674 [Steve Henson] 7675 7676 *) Make maximum certificate chain size accepted from the peer application 7677 settable (SSL*_get/set_max_cert_list()), as proposed by 7678 "Douglas E. Engert" <deengert@anl.gov>. 7679 [Lutz Jaenicke] 7680 7681 *) Add support for shared libraries for Unixware-7 7682 (Boyd Lynn Gerber <gerberb@zenez.com>). 7683 [Lutz Jaenicke] 7684 7685 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 7686 be done prior to destruction. Use this to unload error strings from 7687 ENGINEs that load their own error strings. NB: This adds two new API 7688 functions to "get" and "set" this destroy handler in an ENGINE. 7689 [Geoff Thorpe] 7690 7691 *) Alter all existing ENGINE implementations (except "openssl" and 7692 "openbsd") to dynamically instantiate their own error strings. This 7693 makes them more flexible to be built both as statically-linked ENGINEs 7694 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 7695 Also, add stub code to each that makes building them as self-contained 7696 shared-libraries easier (see README.ENGINE). 7697 [Geoff Thorpe] 7698 7699 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 7700 implementations into applications that are completely implemented in 7701 self-contained shared-libraries. The "dynamic" ENGINE exposes control 7702 commands that can be used to configure what shared-library to load and 7703 to control aspects of the way it is handled. Also, made an update to 7704 the README.ENGINE file that brings its information up-to-date and 7705 provides some information and instructions on the "dynamic" ENGINE 7706 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 7707 [Geoff Thorpe] 7708 7709 *) Make it possible to unload ranges of ERR strings with a new 7710 "ERR_unload_strings" function. 7711 [Geoff Thorpe] 7712 7713 *) Add a copy() function to EVP_MD. 7714 [Ben Laurie] 7715 7716 *) Make EVP_MD routines take a context pointer instead of just the 7717 md_data void pointer. 7718 [Ben Laurie] 7719 7720 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 7721 that the digest can only process a single chunk of data 7722 (typically because it is provided by a piece of 7723 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 7724 is only going to provide a single chunk of data, and hence the 7725 framework needn't accumulate the data for oneshot drivers. 7726 [Ben Laurie] 7727 7728 *) As with "ERR", make it possible to replace the underlying "ex_data" 7729 functions. This change also alters the storage and management of global 7730 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 7731 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 7732 index counters. The API functions that use this state have been changed 7733 to take a "class_index" rather than pointers to the class's local STACK 7734 and counter, and there is now an API function to dynamically create new 7735 classes. This centralisation allows us to (a) plug a lot of the 7736 thread-safety problems that existed, and (b) makes it possible to clean 7737 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 7738 such data would previously have always leaked in application code and 7739 workarounds were in place to make the memory debugging turn a blind eye 7740 to it. Application code that doesn't use this new function will still 7741 leak as before, but their memory debugging output will announce it now 7742 rather than letting it slide. 7743 7744 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 7745 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 7746 has a return value to indicate success or failure. 7747 [Geoff Thorpe] 7748 7749 *) Make it possible to replace the underlying "ERR" functions such that the 7750 global state (2 LHASH tables and 2 locks) is only used by the "default" 7751 implementation. This change also adds two functions to "get" and "set" 7752 the implementation prior to it being automatically set the first time 7753 any other ERR function takes place. Ie. an application can call "get", 7754 pass the return value to a module it has just loaded, and that module 7755 can call its own "set" function using that value. This means the 7756 module's "ERR" operations will use (and modify) the error state in the 7757 application and not in its own statically linked copy of OpenSSL code. 7758 [Geoff Thorpe] 7759 7760 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 7761 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 7762 the operation, and provides a more encapsulated way for external code 7763 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 7764 to use these functions rather than manually incrementing the counts. 7765 7766 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 7767 [Geoff Thorpe] 7768 7769 *) Add EVP test program. 7770 [Ben Laurie] 7771 7772 *) Add symmetric cipher support to ENGINE. Expect the API to change! 7773 [Ben Laurie] 7774 7775 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 7776 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 7777 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 7778 These allow a CRL to be built without having to access X509_CRL fields 7779 directly. Modify 'ca' application to use new functions. 7780 [Steve Henson] 7781 7782 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 7783 bug workarounds. Rollback attack detection is a security feature. 7784 The problem will only arise on OpenSSL servers when TLSv1 is not 7785 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 7786 Software authors not wanting to support TLSv1 will have special reasons 7787 for their choice and can explicitly enable this option. 7788 [Bodo Moeller, Lutz Jaenicke] 7789 7790 *) Rationalise EVP so it can be extended: don't include a union of 7791 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 7792 (similar to those existing for EVP_CIPHER_CTX). 7793 Usage example: 7794 7795 EVP_MD_CTX md; 7796 7797 EVP_MD_CTX_init(&md); /* new function call */ 7798 EVP_DigestInit(&md, EVP_sha1()); 7799 EVP_DigestUpdate(&md, in, len); 7800 EVP_DigestFinal(&md, out, NULL); 7801 EVP_MD_CTX_cleanup(&md); /* new function call */ 7802 7803 [Ben Laurie] 7804 7805 *) Make DES key schedule conform to the usual scheme, as well as 7806 correcting its structure. This means that calls to DES functions 7807 now have to pass a pointer to a des_key_schedule instead of a 7808 plain des_key_schedule (which was actually always a pointer 7809 anyway): E.g., 7810 7811 des_key_schedule ks; 7812 7813 des_set_key_checked(..., &ks); 7814 des_ncbc_encrypt(..., &ks, ...); 7815 7816 (Note that a later change renames 'des_...' into 'DES_...'.) 7817 [Ben Laurie] 7818 7819 *) Initial reduction of linker bloat: the use of some functions, such as 7820 PEM causes large amounts of unused functions to be linked in due to 7821 poor organisation. For example pem_all.c contains every PEM function 7822 which has a knock on effect of linking in large amounts of (unused) 7823 ASN1 code. Grouping together similar functions and splitting unrelated 7824 functions prevents this. 7825 [Steve Henson] 7826 7827 *) Cleanup of EVP macros. 7828 [Ben Laurie] 7829 7830 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 7831 correct _ecb suffix. 7832 [Ben Laurie] 7833 7834 *) Add initial OCSP responder support to ocsp application. The 7835 revocation information is handled using the text based index 7836 use by the ca application. The responder can either handle 7837 requests generated internally, supplied in files (for example 7838 via a CGI script) or using an internal minimal server. 7839 [Steve Henson] 7840 7841 *) Add configuration choices to get zlib compression for TLS. 7842 [Richard Levitte] 7843 7844 *) Changes to Kerberos SSL for RFC 2712 compliance: 7845 1. Implemented real KerberosWrapper, instead of just using 7846 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 7847 2. Implemented optional authenticator field of KerberosWrapper. 7848 7849 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 7850 and authenticator structs; see crypto/krb5/. 7851 7852 Generalized Kerberos calls to support multiple Kerberos libraries. 7853 [Vern Staats <staatsvr@asc.hpc.mil>, 7854 Jeffrey Altman <jaltman@columbia.edu> 7855 via Richard Levitte] 7856 7857 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 7858 already does with RSA. testdsa.h now has 'priv_key/pub_key' 7859 values for each of the key sizes rather than having just 7860 parameters (and 'speed' generating keys each time). 7861 [Geoff Thorpe] 7862 7863 *) Speed up EVP routines. 7864 Before: 7865encrypt 7866type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 7867des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 7868des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 7869des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 7870decrypt 7871des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 7872des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 7873des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 7874 After: 7875encrypt 7876des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 7877decrypt 7878des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 7879 [Ben Laurie] 7880 7881 *) Added the OS2-EMX target. 7882 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 7883 7884 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 7885 to support NCONF routines in extension code. New function CONF_set_nconf() 7886 to allow functions which take an NCONF to also handle the old LHASH 7887 structure: this means that the old CONF compatible routines can be 7888 retained (in particular wrt extensions) without having to duplicate the 7889 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 7890 [Steve Henson] 7891 7892 *) Enhance the general user interface with mechanisms for inner control 7893 and with possibilities to have yes/no kind of prompts. 7894 [Richard Levitte] 7895 7896 *) Change all calls to low level digest routines in the library and 7897 applications to use EVP. Add missing calls to HMAC_cleanup() and 7898 don't assume HMAC_CTX can be copied using memcpy(). 7899 [Verdon Walker <VWalker@novell.com>, Steve Henson] 7900 7901 *) Add the possibility to control engines through control names but with 7902 arbitrary arguments instead of just a string. 7903 Change the key loaders to take a UI_METHOD instead of a callback 7904 function pointer. NOTE: this breaks binary compatibility with earlier 7905 versions of OpenSSL [engine]. 7906 Adapt the nCipher code for these new conditions and add a card insertion 7907 callback. 7908 [Richard Levitte] 7909 7910 *) Enhance the general user interface with mechanisms to better support 7911 dialog box interfaces, application-defined prompts, the possibility 7912 to use defaults (for example default passwords from somewhere else) 7913 and interrupts/cancellations. 7914 [Richard Levitte] 7915 7916 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 7917 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 7918 [Steve Henson] 7919 7920 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 7921 tidy up some unnecessarily weird code in 'sk_new()'). 7922 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 7923 7924 *) Change the key loading routines for ENGINEs to use the same kind 7925 callback (pem_password_cb) as all other routines that need this 7926 kind of callback. 7927 [Richard Levitte] 7928 7929 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 7930 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 7931 than this minimum value is recommended. 7932 [Lutz Jaenicke] 7933 7934 *) New random seeder for OpenVMS, using the system process statistics 7935 that are easily reachable. 7936 [Richard Levitte] 7937 7938 *) Windows apparently can't transparently handle global 7939 variables defined in DLLs. Initialisations such as: 7940 7941 const ASN1_ITEM *it = &ASN1_INTEGER_it; 7942 7943 won't compile. This is used by the any applications that need to 7944 declare their own ASN1 modules. This was fixed by adding the option 7945 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 7946 needed for static libraries under Win32. 7947 [Steve Henson] 7948 7949 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 7950 setting of purpose and trust fields. New X509_STORE trust and 7951 purpose functions and tidy up setting in other SSL functions. 7952 [Steve Henson] 7953 7954 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 7955 structure. These are inherited by X509_STORE_CTX when it is 7956 initialised. This allows various defaults to be set in the 7957 X509_STORE structure (such as flags for CRL checking and custom 7958 purpose or trust settings) for functions which only use X509_STORE_CTX 7959 internally such as S/MIME. 7960 7961 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 7962 trust settings if they are not set in X509_STORE. This allows X509_STORE 7963 purposes and trust (in S/MIME for example) to override any set by default. 7964 7965 Add command line options for CRL checking to smime, s_client and s_server 7966 applications. 7967 [Steve Henson] 7968 7969 *) Initial CRL based revocation checking. If the CRL checking flag(s) 7970 are set then the CRL is looked up in the X509_STORE structure and 7971 its validity and signature checked, then if the certificate is found 7972 in the CRL the verify fails with a revoked error. 7973 7974 Various new CRL related callbacks added to X509_STORE_CTX structure. 7975 7976 Command line options added to 'verify' application to support this. 7977 7978 This needs some additional work, such as being able to handle multiple 7979 CRLs with different times, extension based lookup (rather than just 7980 by subject name) and ultimately more complete V2 CRL extension 7981 handling. 7982 [Steve Henson] 7983 7984 *) Add a general user interface API (crypto/ui/). This is designed 7985 to replace things like des_read_password and friends (backward 7986 compatibility functions using this new API are provided). 7987 The purpose is to remove prompting functions from the DES code 7988 section as well as provide for prompting through dialog boxes in 7989 a window system and the like. 7990 [Richard Levitte] 7991 7992 *) Add "ex_data" support to ENGINE so implementations can add state at a 7993 per-structure level rather than having to store it globally. 7994 [Geoff] 7995 7996 *) Make it possible for ENGINE structures to be copied when retrieved by 7997 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 7998 This causes the "original" ENGINE structure to act like a template, 7999 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 8000 operational state can be localised to each ENGINE structure, despite the 8001 fact they all share the same "methods". New ENGINE structures returned in 8002 this case have no functional references and the return value is the single 8003 structural reference. This matches the single structural reference returned 8004 by ENGINE_by_id() normally, when it is incremented on the pre-existing 8005 ENGINE structure. 8006 [Geoff] 8007 8008 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 8009 needs to match any other type at all we need to manually clear the 8010 tag cache. 8011 [Steve Henson] 8012 8013 *) Changes to the "openssl engine" utility to include; 8014 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 8015 about an ENGINE's available control commands. 8016 - executing control commands from command line arguments using the 8017 '-pre' and '-post' switches. '-post' is only used if '-t' is 8018 specified and the ENGINE is successfully initialised. The syntax for 8019 the individual commands are colon-separated, for example; 8020 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 8021 [Geoff] 8022 8023 *) New dynamic control command support for ENGINEs. ENGINEs can now 8024 declare their own commands (numbers), names (strings), descriptions, 8025 and input types for run-time discovery by calling applications. A 8026 subset of these commands are implicitly classed as "executable" 8027 depending on their input type, and only these can be invoked through 8028 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 8029 can be based on user input, config files, etc). The distinction is 8030 that "executable" commands cannot return anything other than a boolean 8031 result and can only support numeric or string input, whereas some 8032 discoverable commands may only be for direct use through 8033 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 8034 pointers, or other custom uses. The "executable" commands are to 8035 support parameterisations of ENGINE behaviour that can be 8036 unambiguously defined by ENGINEs and used consistently across any 8037 OpenSSL-based application. Commands have been added to all the 8038 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 8039 control over shared-library paths without source code alterations. 8040 [Geoff] 8041 8042 *) Changed all ENGINE implementations to dynamically allocate their 8043 ENGINEs rather than declaring them statically. Apart from this being 8044 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 8045 this also allows the implementations to compile without using the 8046 internal engine_int.h header. 8047 [Geoff] 8048 8049 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 8050 'const' value. Any code that should be able to modify a RAND_METHOD 8051 should already have non-const pointers to it (ie. they should only 8052 modify their own ones). 8053 [Geoff] 8054 8055 *) Made a variety of little tweaks to the ENGINE code. 8056 - "atalla" and "ubsec" string definitions were moved from header files 8057 to C code. "nuron" string definitions were placed in variables 8058 rather than hard-coded - allowing parameterisation of these values 8059 later on via ctrl() commands. 8060 - Removed unused "#if 0"'d code. 8061 - Fixed engine list iteration code so it uses ENGINE_free() to release 8062 structural references. 8063 - Constified the RAND_METHOD element of ENGINE structures. 8064 - Constified various get/set functions as appropriate and added 8065 missing functions (including a catch-all ENGINE_cpy that duplicates 8066 all ENGINE values onto a new ENGINE except reference counts/state). 8067 - Removed NULL parameter checks in get/set functions. Setting a method 8068 or function to NULL is a way of cancelling out a previously set 8069 value. Passing a NULL ENGINE parameter is just plain stupid anyway 8070 and doesn't justify the extra error symbols and code. 8071 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 8072 flags from engine_int.h to engine.h. 8073 - Changed prototypes for ENGINE handler functions (init(), finish(), 8074 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 8075 [Geoff] 8076 8077 *) Implement binary inversion algorithm for BN_mod_inverse in addition 8078 to the algorithm using long division. The binary algorithm can be 8079 used only if the modulus is odd. On 32-bit systems, it is faster 8080 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 8081 roughly 5-15% for 256-bit moduli), so we use it only for moduli 8082 up to 450 bits. In 64-bit environments, the binary algorithm 8083 appears to be advantageous for much longer moduli; here we use it 8084 for moduli up to 2048 bits. 8085 [Bodo Moeller] 8086 8087 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 8088 could not support the combine flag in choice fields. 8089 [Steve Henson] 8090 8091 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 8092 extensions from a certificate request to the certificate. 8093 [Steve Henson] 8094 8095 *) Allow multiple 'certopt' and 'nameopt' options to be separated 8096 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 8097 file: this allows the display of the certificate about to be 8098 signed to be customised, to allow certain fields to be included 8099 or excluded and extension details. The old system didn't display 8100 multicharacter strings properly, omitted fields not in the policy 8101 and couldn't display additional details such as extensions. 8102 [Steve Henson] 8103 8104 *) Function EC_POINTs_mul for multiple scalar multiplication 8105 of an arbitrary number of elliptic curve points 8106 \sum scalars[i]*points[i], 8107 optionally including the generator defined for the EC_GROUP: 8108 scalar*generator + \sum scalars[i]*points[i]. 8109 8110 EC_POINT_mul is a simple wrapper function for the typical case 8111 that the point list has just one item (besides the optional 8112 generator). 8113 [Bodo Moeller] 8114 8115 *) First EC_METHODs for curves over GF(p): 8116 8117 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 8118 operations and provides various method functions that can also 8119 operate with faster implementations of modular arithmetic. 8120 8121 EC_GFp_mont_method() reuses most functions that are part of 8122 EC_GFp_simple_method, but uses Montgomery arithmetic. 8123 8124 [Bodo Moeller; point addition and point doubling 8125 implementation directly derived from source code provided by 8126 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 8127 8128 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 8129 crypto/ec/ec_lib.c): 8130 8131 Curves are EC_GROUP objects (with an optional group generator) 8132 based on EC_METHODs that are built into the library. 8133 8134 Points are EC_POINT objects based on EC_GROUP objects. 8135 8136 Most of the framework would be able to handle curves over arbitrary 8137 finite fields, but as there are no obvious types for fields other 8138 than GF(p), some functions are limited to that for now. 8139 [Bodo Moeller] 8140 8141 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 8142 that the file contains a complete HTTP response. 8143 [Richard Levitte] 8144 8145 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 8146 change the def and num file printf format specifier from "%-40sXXX" 8147 to "%-39s XXX". The latter will always guarantee a space after the 8148 field while the former will cause them to run together if the field 8149 is 40 of more characters long. 8150 [Steve Henson] 8151 8152 *) Constify the cipher and digest 'method' functions and structures 8153 and modify related functions to take constant EVP_MD and EVP_CIPHER 8154 pointers. 8155 [Steve Henson] 8156 8157 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 8158 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 8159 [Bodo Moeller] 8160 8161 *) Modify EVP_Digest*() routines so they now return values. Although the 8162 internal software routines can never fail additional hardware versions 8163 might. 8164 [Steve Henson] 8165 8166 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 8167 8168 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 8169 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 8170 8171 ASN1 error codes 8172 ERR_R_NESTED_ASN1_ERROR 8173 ... 8174 ERR_R_MISSING_ASN1_EOS 8175 were 4 .. 9, conflicting with 8176 ERR_LIB_RSA (= ERR_R_RSA_LIB) 8177 ... 8178 ERR_LIB_PEM (= ERR_R_PEM_LIB). 8179 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 8180 8181 Add new error code 'ERR_R_INTERNAL_ERROR'. 8182 [Bodo Moeller] 8183 8184 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 8185 suffices. 8186 [Bodo Moeller] 8187 8188 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 8189 sets the subject name for a new request or supersedes the 8190 subject name in a given request. Formats that can be parsed are 8191 'CN=Some Name, OU=myOU, C=IT' 8192 and 8193 'CN=Some Name/OU=myOU/C=IT'. 8194 8195 Add options '-batch' and '-verbose' to 'openssl req'. 8196 [Massimiliano Pala <madwolf@hackmasters.net>] 8197 8198 *) Introduce the possibility to access global variables through 8199 functions on platform were that's the best way to handle exporting 8200 global variables in shared libraries. To enable this functionality, 8201 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 8202 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 8203 is normally done by Configure or something similar). 8204 8205 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 8206 in the source file (foo.c) like this: 8207 8208 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 8209 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 8210 8211 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 8212 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 8213 8214 OPENSSL_DECLARE_GLOBAL(int,foo); 8215 #define foo OPENSSL_GLOBAL_REF(foo) 8216 OPENSSL_DECLARE_GLOBAL(double,bar); 8217 #define bar OPENSSL_GLOBAL_REF(bar) 8218 8219 The #defines are very important, and therefore so is including the 8220 header file everywhere where the defined globals are used. 8221 8222 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 8223 of ASN.1 items, but that structure is a bit different. 8224 8225 The largest change is in util/mkdef.pl which has been enhanced with 8226 better and easier to understand logic to choose which symbols should 8227 go into the Windows .def files as well as a number of fixes and code 8228 cleanup (among others, algorithm keywords are now sorted 8229 lexicographically to avoid constant rewrites). 8230 [Richard Levitte] 8231 8232 *) In BN_div() keep a copy of the sign of 'num' before writing the 8233 result to 'rm' because if rm==num the value will be overwritten 8234 and produce the wrong result if 'num' is negative: this caused 8235 problems with BN_mod() and BN_nnmod(). 8236 [Steve Henson] 8237 8238 *) Function OCSP_request_verify(). This checks the signature on an 8239 OCSP request and verifies the signer certificate. The signer 8240 certificate is just checked for a generic purpose and OCSP request 8241 trust settings. 8242 [Steve Henson] 8243 8244 *) Add OCSP_check_validity() function to check the validity of OCSP 8245 responses. OCSP responses are prepared in real time and may only 8246 be a few seconds old. Simply checking that the current time lies 8247 between thisUpdate and nextUpdate max reject otherwise valid responses 8248 caused by either OCSP responder or client clock inaccuracy. Instead 8249 we allow thisUpdate and nextUpdate to fall within a certain period of 8250 the current time. The age of the response can also optionally be 8251 checked. Two new options -validity_period and -status_age added to 8252 ocsp utility. 8253 [Steve Henson] 8254 8255 *) If signature or public key algorithm is unrecognized print out its 8256 OID rather that just UNKNOWN. 8257 [Steve Henson] 8258 8259 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 8260 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 8261 ID to be generated from the issuer certificate alone which can then be 8262 passed to OCSP_id_issuer_cmp(). 8263 [Steve Henson] 8264 8265 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 8266 ASN1 modules to export functions returning ASN1_ITEM pointers 8267 instead of the ASN1_ITEM structures themselves. This adds several 8268 new macros which allow the underlying ASN1 function/structure to 8269 be accessed transparently. As a result code should not use ASN1_ITEM 8270 references directly (such as &X509_it) but instead use the relevant 8271 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 8272 use of the new ASN1 code on platforms where exporting structures 8273 is problematical (for example in shared libraries) but exporting 8274 functions returning pointers to structures is not. 8275 [Steve Henson] 8276 8277 *) Add support for overriding the generation of SSL/TLS session IDs. 8278 These callbacks can be registered either in an SSL_CTX or per SSL. 8279 The purpose of this is to allow applications to control, if they wish, 8280 the arbitrary values chosen for use as session IDs, particularly as it 8281 can be useful for session caching in multiple-server environments. A 8282 command-line switch for testing this (and any client code that wishes 8283 to use such a feature) has been added to "s_server". 8284 [Geoff Thorpe, Lutz Jaenicke] 8285 8286 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 8287 of the form '#if defined(...) || defined(...) || ...' and 8288 '#if !defined(...) && !defined(...) && ...'. This also avoids 8289 the growing number of special cases it was previously handling. 8290 [Richard Levitte] 8291 8292 *) Make all configuration macros available for application by making 8293 sure they are available in opensslconf.h, by giving them names starting 8294 with "OPENSSL_" to avoid conflicts with other packages and by making 8295 sure e_os2.h will cover all platform-specific cases together with 8296 opensslconf.h. 8297 Additionally, it is now possible to define configuration/platform- 8298 specific names (called "system identities"). In the C code, these 8299 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 8300 macro with the name beginning with "OPENSSL_SYS_", which is determined 8301 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 8302 what is available. 8303 [Richard Levitte] 8304 8305 *) New option -set_serial to 'req' and 'x509' this allows the serial 8306 number to use to be specified on the command line. Previously self 8307 signed certificates were hard coded with serial number 0 and the 8308 CA options of 'x509' had to use a serial number in a file which was 8309 auto incremented. 8310 [Steve Henson] 8311 8312 *) New options to 'ca' utility to support V2 CRL entry extensions. 8313 Currently CRL reason, invalidity date and hold instruction are 8314 supported. Add new CRL extensions to V3 code and some new objects. 8315 [Steve Henson] 8316 8317 *) New function EVP_CIPHER_CTX_set_padding() this is used to 8318 disable standard block padding (aka PKCS#5 padding) in the EVP 8319 API, which was previously mandatory. This means that the data is 8320 not padded in any way and so the total length much be a multiple 8321 of the block size, otherwise an error occurs. 8322 [Steve Henson] 8323 8324 *) Initial (incomplete) OCSP SSL support. 8325 [Steve Henson] 8326 8327 *) New function OCSP_parse_url(). This splits up a URL into its host, 8328 port and path components: primarily to parse OCSP URLs. New -url 8329 option to ocsp utility. 8330 [Steve Henson] 8331 8332 *) New nonce behavior. The return value of OCSP_check_nonce() now 8333 reflects the various checks performed. Applications can decide 8334 whether to tolerate certain situations such as an absent nonce 8335 in a response when one was present in a request: the ocsp application 8336 just prints out a warning. New function OCSP_add1_basic_nonce() 8337 this is to allow responders to include a nonce in a response even if 8338 the request is nonce-less. 8339 [Steve Henson] 8340 8341 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 8342 skipped when using openssl x509 multiple times on a single input file, 8343 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 8344 [Bodo Moeller] 8345 8346 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 8347 set string type: to handle setting ASN1_TIME structures. Fix ca 8348 utility to correctly initialize revocation date of CRLs. 8349 [Steve Henson] 8350 8351 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 8352 the clients preferred ciphersuites and rather use its own preferences. 8353 Should help to work around M$ SGC (Server Gated Cryptography) bug in 8354 Internet Explorer by ensuring unchanged hash method during stepup. 8355 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 8356 [Lutz Jaenicke] 8357 8358 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 8359 to aes and add a new 'exist' option to print out symbols that don't 8360 appear to exist. 8361 [Steve Henson] 8362 8363 *) Additional options to ocsp utility to allow flags to be set and 8364 additional certificates supplied. 8365 [Steve Henson] 8366 8367 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 8368 OCSP client a number of certificate to only verify the response 8369 signature against. 8370 [Richard Levitte] 8371 8372 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 8373 handle the new API. Currently only ECB, CBC modes supported. Add new 8374 AES OIDs. 8375 8376 Add TLS AES ciphersuites as described in RFC3268, "Advanced 8377 Encryption Standard (AES) Ciphersuites for Transport Layer 8378 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 8379 not enabled by default and were not part of the "ALL" ciphersuite 8380 alias because they were not yet official; they could be 8381 explicitly requested by specifying the "AESdraft" ciphersuite 8382 group alias. In the final release of OpenSSL 0.9.7, the group 8383 alias is called "AES" and is part of "ALL".) 8384 [Ben Laurie, Steve Henson, Bodo Moeller] 8385 8386 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 8387 request to response. 8388 [Steve Henson] 8389 8390 *) Functions for OCSP responders. OCSP_request_onereq_count(), 8391 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 8392 extract information from a certificate request. OCSP_response_create() 8393 creates a response and optionally adds a basic response structure. 8394 OCSP_basic_add1_status() adds a complete single response to a basic 8395 response and returns the OCSP_SINGLERESP structure just added (to allow 8396 extensions to be included for example). OCSP_basic_add1_cert() adds a 8397 certificate to a basic response and OCSP_basic_sign() signs a basic 8398 response with various flags. New helper functions ASN1_TIME_check() 8399 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 8400 (converts ASN1_TIME to GeneralizedTime). 8401 [Steve Henson] 8402 8403 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 8404 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 8405 structure from a certificate. X509_pubkey_digest() digests the public_key 8406 contents: this is used in various key identifiers. 8407 [Steve Henson] 8408 8409 *) Make sk_sort() tolerate a NULL argument. 8410 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 8411 8412 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 8413 passed by the function are trusted implicitly. If any of them signed the 8414 response then it is assumed to be valid and is not verified. 8415 [Steve Henson] 8416 8417 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 8418 to data. This was previously part of the PKCS7 ASN1 code. This 8419 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 8420 [Steve Henson, reported by Kenneth R. Robinette 8421 <support@securenetterm.com>] 8422 8423 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 8424 routines: without these tracing memory leaks is very painful. 8425 Fix leaks in PKCS12 and PKCS7 routines. 8426 [Steve Henson] 8427 8428 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 8429 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 8430 effectively meant GeneralizedTime would never be used. Now it 8431 is initialised to -1 but X509_time_adj() now has to check the value 8432 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 8433 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 8434 [Steve Henson, reported by Kenneth R. Robinette 8435 <support@securenetterm.com>] 8436 8437 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 8438 result in a zero length in the ASN1_INTEGER structure which was 8439 not consistent with the structure when d2i_ASN1_INTEGER() was used 8440 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 8441 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 8442 where it did not print out a minus for negative ASN1_INTEGER. 8443 [Steve Henson] 8444 8445 *) Add summary printout to ocsp utility. The various functions which 8446 convert status values to strings have been renamed to: 8447 OCSP_response_status_str(), OCSP_cert_status_str() and 8448 OCSP_crl_reason_str() and are no longer static. New options 8449 to verify nonce values and to disable verification. OCSP response 8450 printout format cleaned up. 8451 [Steve Henson] 8452 8453 *) Add additional OCSP certificate checks. These are those specified 8454 in RFC2560. This consists of two separate checks: the CA of the 8455 certificate being checked must either be the OCSP signer certificate 8456 or the issuer of the OCSP signer certificate. In the latter case the 8457 OCSP signer certificate must contain the OCSP signing extended key 8458 usage. This check is performed by attempting to match the OCSP 8459 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 8460 in the OCSP_CERTID structures of the response. 8461 [Steve Henson] 8462 8463 *) Initial OCSP certificate verification added to OCSP_basic_verify() 8464 and related routines. This uses the standard OpenSSL certificate 8465 verify routines to perform initial checks (just CA validity) and 8466 to obtain the certificate chain. Then additional checks will be 8467 performed on the chain. Currently the root CA is checked to see 8468 if it is explicitly trusted for OCSP signing. This is used to set 8469 a root CA as a global signing root: that is any certificate that 8470 chains to that CA is an acceptable OCSP signing certificate. 8471 [Steve Henson] 8472 8473 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 8474 extensions from a separate configuration file. 8475 As when reading extensions from the main configuration file, 8476 the '-extensions ...' option may be used for specifying the 8477 section to use. 8478 [Massimiliano Pala <madwolf@comune.modena.it>] 8479 8480 *) New OCSP utility. Allows OCSP requests to be generated or 8481 read. The request can be sent to a responder and the output 8482 parsed, outputted or printed in text form. Not complete yet: 8483 still needs to check the OCSP response validity. 8484 [Steve Henson] 8485 8486 *) New subcommands for 'openssl ca': 8487 'openssl ca -status <serial>' prints the status of the cert with 8488 the given serial number (according to the index file). 8489 'openssl ca -updatedb' updates the expiry status of certificates 8490 in the index file. 8491 [Massimiliano Pala <madwolf@comune.modena.it>] 8492 8493 *) New '-newreq-nodes' command option to CA.pl. This is like 8494 '-newreq', but calls 'openssl req' with the '-nodes' option 8495 so that the resulting key is not encrypted. 8496 [Damien Miller <djm@mindrot.org>] 8497 8498 *) New configuration for the GNU Hurd. 8499 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 8500 8501 *) Initial code to implement OCSP basic response verify. This 8502 is currently incomplete. Currently just finds the signer's 8503 certificate and verifies the signature on the response. 8504 [Steve Henson] 8505 8506 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 8507 value of OPENSSLDIR. This is available via the new '-d' option 8508 to 'openssl version', and is also included in 'openssl version -a'. 8509 [Bodo Moeller] 8510 8511 *) Allowing defining memory allocation callbacks that will be given 8512 file name and line number information in additional arguments 8513 (a const char* and an int). The basic functionality remains, as 8514 well as the original possibility to just replace malloc(), 8515 realloc() and free() by functions that do not know about these 8516 additional arguments. To register and find out the current 8517 settings for extended allocation functions, the following 8518 functions are provided: 8519 8520 CRYPTO_set_mem_ex_functions 8521 CRYPTO_set_locked_mem_ex_functions 8522 CRYPTO_get_mem_ex_functions 8523 CRYPTO_get_locked_mem_ex_functions 8524 8525 These work the same way as CRYPTO_set_mem_functions and friends. 8526 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 8527 extended allocation function is enabled. 8528 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 8529 a conventional allocation function is enabled. 8530 [Richard Levitte, Bodo Moeller] 8531 8532 *) Finish off removing the remaining LHASH function pointer casts. 8533 There should no longer be any prototype-casting required when using 8534 the LHASH abstraction, and any casts that remain are "bugs". See 8535 the callback types and macros at the head of lhash.h for details 8536 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 8537 [Geoff Thorpe] 8538 8539 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 8540 If /dev/[u]random devices are not available or do not return enough 8541 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 8542 be queried. 8543 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 8544 /etc/entropy will be queried once each in this sequence, querying stops 8545 when enough entropy was collected without querying more sockets. 8546 [Lutz Jaenicke] 8547 8548 *) Change the Unix RAND_poll() variant to be able to poll several 8549 random devices, as specified by DEVRANDOM, until a sufficient amount 8550 of data has been collected. We spend at most 10 ms on each file 8551 (select timeout) and read in non-blocking mode. DEVRANDOM now 8552 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 8553 (previously it was just the string "/dev/urandom"), so on typical 8554 platforms the 10 ms delay will never occur. 8555 Also separate out the Unix variant to its own file, rand_unix.c. 8556 For VMS, there's a currently-empty rand_vms.c. 8557 [Richard Levitte] 8558 8559 *) Move OCSP client related routines to ocsp_cl.c. These 8560 provide utility functions which an application needing 8561 to issue a request to an OCSP responder and analyse the 8562 response will typically need: as opposed to those which an 8563 OCSP responder itself would need which will be added later. 8564 8565 OCSP_request_sign() signs an OCSP request with an API similar 8566 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 8567 response. OCSP_response_get1_basic() extracts basic response 8568 from response. OCSP_resp_find_status(): finds and extracts status 8569 information from an OCSP_CERTID structure (which will be created 8570 when the request structure is built). These are built from lower 8571 level functions which work on OCSP_SINGLERESP structures but 8572 won't normally be used unless the application wishes to examine 8573 extensions in the OCSP response for example. 8574 8575 Replace nonce routines with a pair of functions. 8576 OCSP_request_add1_nonce() adds a nonce value and optionally 8577 generates a random value. OCSP_check_nonce() checks the 8578 validity of the nonce in an OCSP response. 8579 [Steve Henson] 8580 8581 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 8582 This doesn't copy the supplied OCSP_CERTID and avoids the 8583 need to free up the newly created id. Change return type 8584 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 8585 This can then be used to add extensions to the request. 8586 Deleted OCSP_request_new(), since most of its functionality 8587 is now in OCSP_REQUEST_new() (and the case insensitive name 8588 clash) apart from the ability to set the request name which 8589 will be added elsewhere. 8590 [Steve Henson] 8591 8592 *) Update OCSP API. Remove obsolete extensions argument from 8593 various functions. Extensions are now handled using the new 8594 OCSP extension code. New simple OCSP HTTP function which 8595 can be used to send requests and parse the response. 8596 [Steve Henson] 8597 8598 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 8599 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 8600 uses the special reorder version of SET OF to sort the attributes 8601 and reorder them to match the encoded order. This resolves a long 8602 standing problem: a verify on a PKCS7 structure just after signing 8603 it used to fail because the attribute order did not match the 8604 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 8605 it uses the received order. This is necessary to tolerate some broken 8606 software that does not order SET OF. This is handled by encoding 8607 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 8608 to produce the required SET OF. 8609 [Steve Henson] 8610 8611 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 8612 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 8613 files to get correct declarations of the ASN.1 item variables. 8614 [Richard Levitte] 8615 8616 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 8617 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 8618 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 8619 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 8620 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 8621 ASN1_ITEM and no wrapper functions. 8622 [Steve Henson] 8623 8624 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 8625 replace the old function pointer based I/O routines. Change most of 8626 the *_d2i_bio() and *_d2i_fp() functions to use these. 8627 [Steve Henson] 8628 8629 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 8630 lines, recognize more "algorithms" that can be deselected, and make 8631 it complain about algorithm deselection that isn't recognised. 8632 [Richard Levitte] 8633 8634 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 8635 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 8636 to use new functions. Add NO_ASN1_OLD which can be set to remove 8637 some old style ASN1 functions: this can be used to determine if old 8638 code will still work when these eventually go away. 8639 [Steve Henson] 8640 8641 *) New extension functions for OCSP structures, these follow the 8642 same conventions as certificates and CRLs. 8643 [Steve Henson] 8644 8645 *) New function X509V3_add1_i2d(). This automatically encodes and 8646 adds an extension. Its behaviour can be customised with various 8647 flags to append, replace or delete. Various wrappers added for 8648 certificates and CRLs. 8649 [Steve Henson] 8650 8651 *) Fix to avoid calling the underlying ASN1 print routine when 8652 an extension cannot be parsed. Correct a typo in the 8653 OCSP_SERVICELOC extension. Tidy up print OCSP format. 8654 [Steve Henson] 8655 8656 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate 8657 entries for variables. 8658 [Steve Henson] 8659 8660 *) Add functionality to apps/openssl.c for detecting locking 8661 problems: As the program is single-threaded, all we have 8662 to do is register a locking callback using an array for 8663 storing which locks are currently held by the program. 8664 [Bodo Moeller] 8665 8666 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 8667 SSL_get_ex_data_X509_STORE_idx(), which is used in 8668 ssl_verify_cert_chain() and thus can be called at any time 8669 during TLS/SSL handshakes so that thread-safety is essential. 8670 Unfortunately, the ex_data design is not at all suited 8671 for multi-threaded use, so it probably should be abolished. 8672 [Bodo Moeller] 8673 8674 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 8675 [Broadcom, tweaked and integrated by Geoff Thorpe] 8676 8677 *) Move common extension printing code to new function 8678 X509V3_print_extensions(). Reorganise OCSP print routines and 8679 implement some needed OCSP ASN1 functions. Add OCSP extensions. 8680 [Steve Henson] 8681 8682 *) New function X509_signature_print() to remove duplication in some 8683 print routines. 8684 [Steve Henson] 8685 8686 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 8687 set (this was treated exactly the same as SET OF previously). This 8688 is used to reorder the STACK representing the structure to match the 8689 encoding. This will be used to get round a problem where a PKCS7 8690 structure which was signed could not be verified because the STACK 8691 order did not reflect the encoded order. 8692 [Steve Henson] 8693 8694 *) Reimplement the OCSP ASN1 module using the new code. 8695 [Steve Henson] 8696 8697 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 8698 for its ASN1 operations. The old style function pointers still exist 8699 for now but they will eventually go away. 8700 [Steve Henson] 8701 8702 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 8703 completely replaces the old ASN1 functionality with a table driven 8704 encoder and decoder which interprets an ASN1_ITEM structure describing 8705 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 8706 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 8707 has also been converted to the new form. 8708 [Steve Henson] 8709 8710 *) Change BN_mod_exp_recp so that negative moduli are tolerated 8711 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 8712 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 8713 for negative moduli. 8714 [Bodo Moeller] 8715 8716 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 8717 of not touching the result's sign bit. 8718 [Bodo Moeller] 8719 8720 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 8721 set. 8722 [Bodo Moeller] 8723 8724 *) Changed the LHASH code to use prototypes for callbacks, and created 8725 macros to declare and implement thin (optionally static) functions 8726 that provide type-safety and avoid function pointer casting for the 8727 type-specific callbacks. 8728 [Geoff Thorpe] 8729 8730 *) Added Kerberos Cipher Suites to be used with TLS, as written in 8731 RFC 2712. 8732 [Veers Staats <staatsvr@asc.hpc.mil>, 8733 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 8734 8735 *) Reformat the FAQ so the different questions and answers can be divided 8736 in sections depending on the subject. 8737 [Richard Levitte] 8738 8739 *) Have the zlib compression code load ZLIB.DLL dynamically under 8740 Windows. 8741 [Richard Levitte] 8742 8743 *) New function BN_mod_sqrt for computing square roots modulo a prime 8744 (using the probabilistic Tonelli-Shanks algorithm unless 8745 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 8746 be handled deterministically). 8747 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 8748 8749 *) Make BN_mod_inverse faster by explicitly handling small quotients 8750 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 8751 512 bits], about 30% for larger ones [1024 or 2048 bits].) 8752 [Bodo Moeller] 8753 8754 *) New function BN_kronecker. 8755 [Bodo Moeller] 8756 8757 *) Fix BN_gcd so that it works on negative inputs; the result is 8758 positive unless both parameters are zero. 8759 Previously something reasonably close to an infinite loop was 8760 possible because numbers could be growing instead of shrinking 8761 in the implementation of Euclid's algorithm. 8762 [Bodo Moeller] 8763 8764 *) Fix BN_is_word() and BN_is_one() macros to take into account the 8765 sign of the number in question. 8766 8767 Fix BN_is_word(a,w) to work correctly for w == 0. 8768 8769 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 8770 because its test if the absolute value of 'a' equals 'w'. 8771 Note that BN_abs_is_word does *not* handle w == 0 reliably; 8772 it exists mostly for use in the implementations of BN_is_zero(), 8773 BN_is_one(), and BN_is_word(). 8774 [Bodo Moeller] 8775 8776 *) New function BN_swap. 8777 [Bodo Moeller] 8778 8779 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 8780 the exponentiation functions are more likely to produce reasonable 8781 results on negative inputs. 8782 [Bodo Moeller] 8783 8784 *) Change BN_mod_mul so that the result is always non-negative. 8785 Previously, it could be negative if one of the factors was negative; 8786 I don't think anyone really wanted that behaviour. 8787 [Bodo Moeller] 8788 8789 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 8790 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 8791 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 8792 and add new functions: 8793 8794 BN_nnmod 8795 BN_mod_sqr 8796 BN_mod_add 8797 BN_mod_add_quick 8798 BN_mod_sub 8799 BN_mod_sub_quick 8800 BN_mod_lshift1 8801 BN_mod_lshift1_quick 8802 BN_mod_lshift 8803 BN_mod_lshift_quick 8804 8805 These functions always generate non-negative results. 8806 8807 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 8808 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 8809 8810 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 8811 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 8812 be reduced modulo m. 8813 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 8814 8815#if 0 8816 The following entry accidentally appeared in the CHANGES file 8817 distributed with OpenSSL 0.9.7. The modifications described in 8818 it do *not* apply to OpenSSL 0.9.7. 8819 8820 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 8821 was actually never needed) and in BN_mul(). The removal in BN_mul() 8822 required a small change in bn_mul_part_recursive() and the addition 8823 of the functions bn_cmp_part_words(), bn_sub_part_words() and 8824 bn_add_part_words(), which do the same thing as bn_cmp_words(), 8825 bn_sub_words() and bn_add_words() except they take arrays with 8826 differing sizes. 8827 [Richard Levitte] 8828#endif 8829 8830 *) In 'openssl passwd', verify passwords read from the terminal 8831 unless the '-salt' option is used (which usually means that 8832 verification would just waste user's time since the resulting 8833 hash is going to be compared with some given password hash) 8834 or the new '-noverify' option is used. 8835 8836 This is an incompatible change, but it does not affect 8837 non-interactive use of 'openssl passwd' (passwords on the command 8838 line, '-stdin' option, '-in ...' option) and thus should not 8839 cause any problems. 8840 [Bodo Moeller] 8841 8842 *) Remove all references to RSAref, since there's no more need for it. 8843 [Richard Levitte] 8844 8845 *) Make DSO load along a path given through an environment variable 8846 (SHLIB_PATH) with shl_load(). 8847 [Richard Levitte] 8848 8849 *) Constify the ENGINE code as a result of BIGNUM constification. 8850 Also constify the RSA code and most things related to it. In a 8851 few places, most notable in the depth of the ASN.1 code, ugly 8852 casts back to non-const were required (to be solved at a later 8853 time) 8854 [Richard Levitte] 8855 8856 *) Make it so the openssl application has all engines loaded by default. 8857 [Richard Levitte] 8858 8859 *) Constify the BIGNUM routines a little more. 8860 [Richard Levitte] 8861 8862 *) Add the following functions: 8863 8864 ENGINE_load_cswift() 8865 ENGINE_load_chil() 8866 ENGINE_load_atalla() 8867 ENGINE_load_nuron() 8868 ENGINE_load_builtin_engines() 8869 8870 That way, an application can itself choose if external engines that 8871 are built-in in OpenSSL shall ever be used or not. The benefit is 8872 that applications won't have to be linked with libdl or other dso 8873 libraries unless it's really needed. 8874 8875 Changed 'openssl engine' to load all engines on demand. 8876 Changed the engine header files to avoid the duplication of some 8877 declarations (they differed!). 8878 [Richard Levitte] 8879 8880 *) 'openssl engine' can now list capabilities. 8881 [Richard Levitte] 8882 8883 *) Better error reporting in 'openssl engine'. 8884 [Richard Levitte] 8885 8886 *) Never call load_dh_param(NULL) in s_server. 8887 [Bodo Moeller] 8888 8889 *) Add engine application. It can currently list engines by name and 8890 identity, and test if they are actually available. 8891 [Richard Levitte] 8892 8893 *) Improve RPM specification file by forcing symbolic linking and making 8894 sure the installed documentation is also owned by root.root. 8895 [Damien Miller <djm@mindrot.org>] 8896 8897 *) Give the OpenSSL applications more possibilities to make use of 8898 keys (public as well as private) handled by engines. 8899 [Richard Levitte] 8900 8901 *) Add OCSP code that comes from CertCo. 8902 [Richard Levitte] 8903 8904 *) Add VMS support for the Rijndael code. 8905 [Richard Levitte] 8906 8907 *) Added untested support for Nuron crypto accelerator. 8908 [Ben Laurie] 8909 8910 *) Add support for external cryptographic devices. This code was 8911 previously distributed separately as the "engine" branch. 8912 [Geoff Thorpe, Richard Levitte] 8913 8914 *) Rework the filename-translation in the DSO code. It is now possible to 8915 have far greater control over how a "name" is turned into a filename 8916 depending on the operating environment and any oddities about the 8917 different shared library filenames on each system. 8918 [Geoff Thorpe] 8919 8920 *) Support threads on FreeBSD-elf in Configure. 8921 [Richard Levitte] 8922 8923 *) Fix for SHA1 assembly problem with MASM: it produces 8924 warnings about corrupt line number information when assembling 8925 with debugging information. This is caused by the overlapping 8926 of two sections. 8927 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 8928 8929 *) NCONF changes. 8930 NCONF_get_number() has no error checking at all. As a replacement, 8931 NCONF_get_number_e() is defined (_e for "error checking") and is 8932 promoted strongly. The old NCONF_get_number is kept around for 8933 binary backward compatibility. 8934 Make it possible for methods to load from something other than a BIO, 8935 by providing a function pointer that is given a name instead of a BIO. 8936 For example, this could be used to load configuration data from an 8937 LDAP server. 8938 [Richard Levitte] 8939 8940 *) Fix for non blocking accept BIOs. Added new I/O special reason 8941 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 8942 with non blocking I/O was not possible because no retry code was 8943 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 8944 this case. 8945 [Steve Henson] 8946 8947 *) Added the beginnings of Rijndael support. 8948 [Ben Laurie] 8949 8950 *) Fix for bug in DirectoryString mask setting. Add support for 8951 X509_NAME_print_ex() in 'req' and X509_print_ex() function 8952 to allow certificate printing to more controllable, additional 8953 'certopt' option to 'x509' to allow new printing options to be 8954 set. 8955 [Steve Henson] 8956 8957 *) Clean old EAY MD5 hack from e_os.h. 8958 [Richard Levitte] 8959 8960 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 8961 8962 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 8963 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 8964 [Joe Orton, Steve Henson] 8965 8966 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 8967 8968 *) Fix additional bug revealed by the NISCC test suite: 8969 8970 Stop bug triggering large recursion when presented with 8971 certain ASN.1 tags (CVE-2003-0851) 8972 [Steve Henson] 8973 8974 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 8975 8976 *) Fix various bugs revealed by running the NISCC test suite: 8977 8978 Stop out of bounds reads in the ASN1 code when presented with 8979 invalid tags (CVE-2003-0543 and CVE-2003-0544). 8980 8981 If verify callback ignores invalid public key errors don't try to check 8982 certificate signature with the NULL public key. 8983 8984 [Steve Henson] 8985 8986 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 8987 if the server requested one: as stated in TLS 1.0 and SSL 3.0 8988 specifications. 8989 [Steve Henson] 8990 8991 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 8992 extra data after the compression methods not only for TLS 1.0 8993 but also for SSL 3.0 (as required by the specification). 8994 [Bodo Moeller; problem pointed out by Matthias Loepfe] 8995 8996 *) Change X509_certificate_type() to mark the key as exported/exportable 8997 when it's 512 *bits* long, not 512 bytes. 8998 [Richard Levitte] 8999 9000 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 9001 9002 *) Countermeasure against the Klima-Pokorny-Rosa extension of 9003 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 9004 a protocol version number mismatch like a decryption error 9005 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 9006 [Bodo Moeller] 9007 9008 *) Turn on RSA blinding by default in the default implementation 9009 to avoid a timing attack. Applications that don't want it can call 9010 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 9011 They would be ill-advised to do so in most cases. 9012 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 9013 9014 *) Change RSA blinding code so that it works when the PRNG is not 9015 seeded (in this case, the secret RSA exponent is abused as 9016 an unpredictable seed -- if it is not unpredictable, there 9017 is no point in blinding anyway). Make RSA blinding thread-safe 9018 by remembering the creator's thread ID in rsa->blinding and 9019 having all other threads use local one-time blinding factors 9020 (this requires more computation than sharing rsa->blinding, but 9021 avoids excessive locking; and if an RSA object is not shared 9022 between threads, blinding will still be very fast). 9023 [Bodo Moeller] 9024 9025 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 9026 9027 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 9028 via timing by performing a MAC computation even if incorrect 9029 block cipher padding has been found. This is a countermeasure 9030 against active attacks where the attacker has to distinguish 9031 between bad padding and a MAC verification error. (CVE-2003-0078) 9032 9033 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 9034 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 9035 Martin Vuagnoux (EPFL, Ilion)] 9036 9037 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 9038 9039 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 9040 memory from its contents. This is done with a counter that will 9041 place alternating values in each byte. This can be used to solve 9042 two issues: 1) the removal of calls to memset() by highly optimizing 9043 compilers, and 2) cleansing with other values than 0, since those can 9044 be read through on certain media, for example a swap space on disk. 9045 [Geoff Thorpe] 9046 9047 *) Bugfix: client side session caching did not work with external caching, 9048 because the session->cipher setting was not restored when reloading 9049 from the external cache. This problem was masked, when 9050 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 9051 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 9052 [Lutz Jaenicke] 9053 9054 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 9055 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 9056 [Zeev Lieber <zeev-l@yahoo.com>] 9057 9058 *) Undo an undocumented change introduced in 0.9.6e which caused 9059 repeated calls to OpenSSL_add_all_ciphers() and 9060 OpenSSL_add_all_digests() to be ignored, even after calling 9061 EVP_cleanup(). 9062 [Richard Levitte] 9063 9064 *) Change the default configuration reader to deal with last line not 9065 being properly terminated. 9066 [Richard Levitte] 9067 9068 *) Change X509_NAME_cmp() so it applies the special rules on handling 9069 DN values that are of type PrintableString, as well as RDNs of type 9070 emailAddress where the value has the type ia5String. 9071 [stefank@valicert.com via Richard Levitte] 9072 9073 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 9074 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 9075 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 9076 the bitwise-OR of the two for use by the majority of applications 9077 wanting this behaviour, and update the docs. The documented 9078 behaviour and actual behaviour were inconsistent and had been 9079 changing anyway, so this is more a bug-fix than a behavioural 9080 change. 9081 [Geoff Thorpe, diagnosed by Nadav Har'El] 9082 9083 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 9084 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 9085 [Bodo Moeller] 9086 9087 *) Fix initialization code race conditions in 9088 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 9089 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 9090 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 9091 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 9092 ssl2_get_cipher_by_char(), 9093 ssl3_get_cipher_by_char(). 9094 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 9095 9096 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 9097 the cached sessions are flushed, as the remove_cb() might use ex_data 9098 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 9099 (see [openssl.org #212]). 9100 [Geoff Thorpe, Lutz Jaenicke] 9101 9102 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 9103 length, instead of the encoding length to d2i_ASN1_OBJECT. 9104 [Steve Henson] 9105 9106 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 9107 9108 *) [In 0.9.6g-engine release:] 9109 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 9110 [Lynn Gazis <lgazis@rainbow.com>] 9111 9112 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 9113 9114 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 9115 and get fix the header length calculation. 9116 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 9117 Alon Kantor <alonk@checkpoint.com> (and others), 9118 Steve Henson] 9119 9120 *) Use proper error handling instead of 'assertions' in buffer 9121 overflow checks added in 0.9.6e. This prevents DoS (the 9122 assertions could call abort()). 9123 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 9124 9125 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 9126 9127 *) Add various sanity checks to asn1_get_length() to reject 9128 the ASN1 length bytes if they exceed sizeof(long), will appear 9129 negative or the content length exceeds the length of the 9130 supplied buffer. 9131 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 9132 9133 *) Fix cipher selection routines: ciphers without encryption had no flags 9134 for the cipher strength set and where therefore not handled correctly 9135 by the selection routines (PR #130). 9136 [Lutz Jaenicke] 9137 9138 *) Fix EVP_dsa_sha macro. 9139 [Nils Larsch] 9140 9141 *) New option 9142 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 9143 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 9144 that was added in OpenSSL 0.9.6d. 9145 9146 As the countermeasure turned out to be incompatible with some 9147 broken SSL implementations, the new option is part of SSL_OP_ALL. 9148 SSL_OP_ALL is usually employed when compatibility with weird SSL 9149 implementations is desired (e.g. '-bugs' option to 's_client' and 9150 's_server'), so the new option is automatically set in many 9151 applications. 9152 [Bodo Moeller] 9153 9154 *) Changes in security patch: 9155 9156 Changes marked "(CHATS)" were sponsored by the Defense Advanced 9157 Research Projects Agency (DARPA) and Air Force Research Laboratory, 9158 Air Force Materiel Command, USAF, under agreement number 9159 F30602-01-2-0537. 9160 9161 *) Add various sanity checks to asn1_get_length() to reject 9162 the ASN1 length bytes if they exceed sizeof(long), will appear 9163 negative or the content length exceeds the length of the 9164 supplied buffer. (CVE-2002-0659) 9165 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 9166 9167 *) Assertions for various potential buffer overflows, not known to 9168 happen in practice. 9169 [Ben Laurie (CHATS)] 9170 9171 *) Various temporary buffers to hold ASCII versions of integers were 9172 too small for 64 bit platforms. (CVE-2002-0655) 9173 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 9174 9175 *) Remote buffer overflow in SSL3 protocol - an attacker could 9176 supply an oversized session ID to a client. (CVE-2002-0656) 9177 [Ben Laurie (CHATS)] 9178 9179 *) Remote buffer overflow in SSL2 protocol - an attacker could 9180 supply an oversized client master key. (CVE-2002-0656) 9181 [Ben Laurie (CHATS)] 9182 9183 Changes between 0.9.6c and 0.9.6d [9 May 2002] 9184 9185 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 9186 encoded as NULL) with id-dsa-with-sha1. 9187 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 9188 9189 *) Check various X509_...() return values in apps/req.c. 9190 [Nils Larsch <nla@trustcenter.de>] 9191 9192 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 9193 an end-of-file condition would erroneously be flagged, when the CRLF 9194 was just at the end of a processed block. The bug was discovered when 9195 processing data through a buffering memory BIO handing the data to a 9196 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 9197 <ptsekov@syntrex.com> and Nedelcho Stanev. 9198 [Lutz Jaenicke] 9199 9200 *) Implement a countermeasure against a vulnerability recently found 9201 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 9202 before application data chunks to avoid the use of known IVs 9203 with data potentially chosen by the attacker. 9204 [Bodo Moeller] 9205 9206 *) Fix length checks in ssl3_get_client_hello(). 9207 [Bodo Moeller] 9208 9209 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 9210 to prevent ssl3_read_internal() from incorrectly assuming that 9211 ssl3_read_bytes() found application data while handshake 9212 processing was enabled when in fact s->s3->in_read_app_data was 9213 merely automatically cleared during the initial handshake. 9214 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 9215 9216 *) Fix object definitions for Private and Enterprise: they were not 9217 recognized in their shortname (=lowercase) representation. Extend 9218 obj_dat.pl to issue an error when using undefined keywords instead 9219 of silently ignoring the problem (Svenning Sorensen 9220 <sss@sss.dnsalias.net>). 9221 [Lutz Jaenicke] 9222 9223 *) Fix DH_generate_parameters() so that it works for 'non-standard' 9224 generators, i.e. generators other than 2 and 5. (Previously, the 9225 code did not properly initialise the 'add' and 'rem' values to 9226 BN_generate_prime().) 9227 9228 In the new general case, we do not insist that 'generator' is 9229 actually a primitive root: This requirement is rather pointless; 9230 a generator of the order-q subgroup is just as good, if not 9231 better. 9232 [Bodo Moeller] 9233 9234 *) Map new X509 verification errors to alerts. Discovered and submitted by 9235 Tom Wu <tom@arcot.com>. 9236 [Lutz Jaenicke] 9237 9238 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 9239 returning non-zero before the data has been completely received 9240 when using non-blocking I/O. 9241 [Bodo Moeller; problem pointed out by John Hughes] 9242 9243 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 9244 [Ben Laurie, Lutz Jaenicke] 9245 9246 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 9247 Yoram Zahavi <YoramZ@gilian.com>). 9248 [Lutz Jaenicke] 9249 9250 *) Add information about CygWin 1.3 and on, and preserve proper 9251 configuration for the versions before that. 9252 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 9253 9254 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 9255 check whether we deal with a copy of a session and do not delete from 9256 the cache in this case. Problem reported by "Izhar Shoshani Levi" 9257 <izhar@checkpoint.com>. 9258 [Lutz Jaenicke] 9259 9260 *) Do not store session data into the internal session cache, if it 9261 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 9262 flag is set). Proposed by Aslam <aslam@funk.com>. 9263 [Lutz Jaenicke] 9264 9265 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 9266 value is 0. 9267 [Richard Levitte] 9268 9269 *) [In 0.9.6d-engine release:] 9270 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 9271 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 9272 9273 *) Add the configuration target linux-s390x. 9274 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 9275 9276 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 9277 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 9278 variable as an indication that a ClientHello message has been 9279 received. As the flag value will be lost between multiple 9280 invocations of ssl3_accept when using non-blocking I/O, the 9281 function may not be aware that a handshake has actually taken 9282 place, thus preventing a new session from being added to the 9283 session cache. 9284 9285 To avoid this problem, we now set s->new_session to 2 instead of 9286 using a local variable. 9287 [Lutz Jaenicke, Bodo Moeller] 9288 9289 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 9290 if the SSL_R_LENGTH_MISMATCH error is detected. 9291 [Geoff Thorpe, Bodo Moeller] 9292 9293 *) New 'shared_ldflag' column in Configure platform table. 9294 [Richard Levitte] 9295 9296 *) Fix EVP_CIPHER_mode macro. 9297 ["Dan S. Camper" <dan@bti.net>] 9298 9299 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 9300 type, we must throw them away by setting rr->length to 0. 9301 [D P Chang <dpc@qualys.com>] 9302 9303 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 9304 9305 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 9306 <Dominikus.Scherkl@biodata.com>. (The previous implementation 9307 worked incorrectly for those cases where range = 10..._2 and 9308 3*range is two bits longer than range.) 9309 [Bodo Moeller] 9310 9311 *) Only add signing time to PKCS7 structures if it is not already 9312 present. 9313 [Steve Henson] 9314 9315 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 9316 OBJ_ld_ce should be OBJ_id_ce. 9317 Also some ip-pda OIDs in crypto/objects/objects.txt were 9318 incorrect (cf. RFC 3039). 9319 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 9320 9321 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 9322 returns early because it has nothing to do. 9323 [Andy Schneider <andy.schneider@bjss.co.uk>] 9324 9325 *) [In 0.9.6c-engine release:] 9326 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 9327 [Andy Schneider <andy.schneider@bjss.co.uk>] 9328 9329 *) [In 0.9.6c-engine release:] 9330 Add support for Cryptographic Appliance's keyserver technology. 9331 (Use engine 'keyclient') 9332 [Cryptographic Appliances and Geoff Thorpe] 9333 9334 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 9335 is called via tools/c89.sh because arguments have to be 9336 rearranged (all '-L' options must appear before the first object 9337 modules). 9338 [Richard Shapiro <rshapiro@abinitio.com>] 9339 9340 *) [In 0.9.6c-engine release:] 9341 Add support for Broadcom crypto accelerator cards, backported 9342 from 0.9.7. 9343 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 9344 9345 *) [In 0.9.6c-engine release:] 9346 Add support for SureWare crypto accelerator cards from 9347 Baltimore Technologies. (Use engine 'sureware') 9348 [Baltimore Technologies and Mark Cox] 9349 9350 *) [In 0.9.6c-engine release:] 9351 Add support for crypto accelerator cards from Accelerated 9352 Encryption Processing, www.aep.ie. (Use engine 'aep') 9353 [AEP Inc. and Mark Cox] 9354 9355 *) Add a configuration entry for gcc on UnixWare. 9356 [Gary Benson <gbenson@redhat.com>] 9357 9358 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 9359 messages are stored in a single piece (fixed-length part and 9360 variable-length part combined) and fix various bugs found on the way. 9361 [Bodo Moeller] 9362 9363 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 9364 instead. BIO_gethostbyname() does not know what timeouts are 9365 appropriate, so entries would stay in cache even when they have 9366 become invalid. 9367 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 9368 9369 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 9370 faced with a pathologically small ClientHello fragment that does 9371 not contain client_version: Instead of aborting with an error, 9372 simply choose the highest available protocol version (i.e., 9373 TLS 1.0 unless it is disabled). In practice, ClientHello 9374 messages are never sent like this, but this change gives us 9375 strictly correct behaviour at least for TLS. 9376 [Bodo Moeller] 9377 9378 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 9379 never resets s->method to s->ctx->method when called from within 9380 one of the SSL handshake functions. 9381 [Bodo Moeller; problem pointed out by Niko Baric] 9382 9383 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 9384 (sent using the client's version number) if client_version is 9385 smaller than the protocol version in use. Also change 9386 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 9387 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 9388 the client will at least see that alert. 9389 [Bodo Moeller] 9390 9391 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 9392 correctly. 9393 [Bodo Moeller] 9394 9395 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 9396 client receives HelloRequest while in a handshake. 9397 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 9398 9399 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 9400 should end in 'break', not 'goto end' which circumvents various 9401 cleanups done in state SSL_ST_OK. But session related stuff 9402 must be disabled for SSL_ST_OK in the case that we just sent a 9403 HelloRequest. 9404 9405 Also avoid some overhead by not calling ssl_init_wbio_buffer() 9406 before just sending a HelloRequest. 9407 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 9408 9409 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 9410 reveal whether illegal block cipher padding was found or a MAC 9411 verification error occurred. (Neither SSLerr() codes nor alerts 9412 are directly visible to potential attackers, but the information 9413 may leak via logfiles.) 9414 9415 Similar changes are not required for the SSL 2.0 implementation 9416 because the number of padding bytes is sent in clear for SSL 2.0, 9417 and the extra bytes are just ignored. However ssl/s2_pkt.c 9418 failed to verify that the purported number of padding bytes is in 9419 the legal range. 9420 [Bodo Moeller] 9421 9422 *) Add OpenUNIX-8 support including shared libraries 9423 (Boyd Lynn Gerber <gerberb@zenez.com>). 9424 [Lutz Jaenicke] 9425 9426 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 9427 'wristwatch attack' using huge encoding parameters (cf. 9428 James H. Manger's CRYPTO 2001 paper). Note that the 9429 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 9430 encoding parameters and hence was not vulnerable. 9431 [Bodo Moeller] 9432 9433 *) BN_sqr() bug fix. 9434 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>] 9435 9436 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 9437 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 9438 followed by modular reduction. 9439 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 9440 9441 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 9442 equivalent based on BN_pseudo_rand() instead of BN_rand(). 9443 [Bodo Moeller] 9444 9445 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 9446 This function was broken, as the check for a new client hello message 9447 to handle SGC did not allow these large messages. 9448 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 9449 [Lutz Jaenicke] 9450 9451 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 9452 [Lutz Jaenicke] 9453 9454 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 9455 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 9456 [Lutz Jaenicke] 9457 9458 *) Rework the configuration and shared library support for Tru64 Unix. 9459 The configuration part makes use of modern compiler features and 9460 still retains old compiler behavior for those that run older versions 9461 of the OS. The shared library support part includes a variant that 9462 uses the RPATH feature, and is available through the special 9463 configuration target "alpha-cc-rpath", which will never be selected 9464 automatically. 9465 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 9466 9467 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 9468 with the same message size as in ssl3_get_certificate_request(). 9469 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 9470 messages might inadvertently be reject as too long. 9471 [Petr Lampa <lampa@fee.vutbr.cz>] 9472 9473 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 9474 [Andy Polyakov] 9475 9476 *) Modified SSL library such that the verify_callback that has been set 9477 specifically for an SSL object with SSL_set_verify() is actually being 9478 used. Before the change, a verify_callback set with this function was 9479 ignored and the verify_callback() set in the SSL_CTX at the time of 9480 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 9481 to allow the necessary settings. 9482 [Lutz Jaenicke] 9483 9484 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 9485 explicitly to NULL, as at least on Solaris 8 this seems not always to be 9486 done automatically (in contradiction to the requirements of the C 9487 standard). This made problems when used from OpenSSH. 9488 [Lutz Jaenicke] 9489 9490 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 9491 dh->length and always used 9492 9493 BN_rand_range(priv_key, dh->p). 9494 9495 BN_rand_range() is not necessary for Diffie-Hellman, and this 9496 specific range makes Diffie-Hellman unnecessarily inefficient if 9497 dh->length (recommended exponent length) is much smaller than the 9498 length of dh->p. We could use BN_rand_range() if the order of 9499 the subgroup was stored in the DH structure, but we only have 9500 dh->length. 9501 9502 So switch back to 9503 9504 BN_rand(priv_key, l, ...) 9505 9506 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 9507 otherwise. 9508 [Bodo Moeller] 9509 9510 *) In 9511 9512 RSA_eay_public_encrypt 9513 RSA_eay_private_decrypt 9514 RSA_eay_private_encrypt (signing) 9515 RSA_eay_public_decrypt (signature verification) 9516 9517 (default implementations for RSA_public_encrypt, 9518 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 9519 always reject numbers >= n. 9520 [Bodo Moeller] 9521 9522 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 9523 to synchronize access to 'locking_thread'. This is necessary on 9524 systems where access to 'locking_thread' (an 'unsigned long' 9525 variable) is not atomic. 9526 [Bodo Moeller] 9527 9528 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 9529 *before* setting the 'crypto_lock_rand' flag. The previous code had 9530 a race condition if 0 is a valid thread ID. 9531 [Travis Vitek <vitek@roguewave.com>] 9532 9533 *) Add support for shared libraries under Irix. 9534 [Albert Chin-A-Young <china@thewrittenword.com>] 9535 9536 *) Add configuration option to build on Linux on both big-endian and 9537 little-endian MIPS. 9538 [Ralf Baechle <ralf@uni-koblenz.de>] 9539 9540 *) Add the possibility to create shared libraries on HP-UX. 9541 [Richard Levitte] 9542 9543 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 9544 9545 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 9546 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 9547 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 9548 PRNG state recovery was possible based on the output of 9549 one PRNG request appropriately sized to gain knowledge on 9550 'md' followed by enough consecutive 1-byte PRNG requests 9551 to traverse all of 'state'. 9552 9553 1. When updating 'md_local' (the current thread's copy of 'md') 9554 during PRNG output generation, hash all of the previous 9555 'md_local' value, not just the half used for PRNG output. 9556 9557 2. Make the number of bytes from 'state' included into the hash 9558 independent from the number of PRNG bytes requested. 9559 9560 The first measure alone would be sufficient to avoid 9561 Markku-Juhani's attack. (Actually it had never occurred 9562 to me that the half of 'md_local' used for chaining was the 9563 half from which PRNG output bytes were taken -- I had always 9564 assumed that the secret half would be used.) The second 9565 measure makes sure that additional data from 'state' is never 9566 mixed into 'md_local' in small portions; this heuristically 9567 further strengthens the PRNG. 9568 [Bodo Moeller] 9569 9570 *) Fix crypto/bn/asm/mips3.s. 9571 [Andy Polyakov] 9572 9573 *) When only the key is given to "enc", the IV is undefined. Print out 9574 an error message in this case. 9575 [Lutz Jaenicke] 9576 9577 *) Handle special case when X509_NAME is empty in X509 printing routines. 9578 [Steve Henson] 9579 9580 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 9581 positive and less than q. 9582 [Bodo Moeller] 9583 9584 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 9585 used: it isn't thread safe and the add_lock_callback should handle 9586 that itself. 9587 [Paul Rose <Paul.Rose@bridge.com>] 9588 9589 *) Verify that incoming data obeys the block size in 9590 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 9591 [Bodo Moeller] 9592 9593 *) Fix OAEP check. 9594 [Ulf Möller, Bodo Möller] 9595 9596 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 9597 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 9598 when fixing the server behaviour for backwards-compatible 'client 9599 hello' messages. (Note that the attack is impractical against 9600 SSL 3.0 and TLS 1.0 anyway because length and version checking 9601 means that the probability of guessing a valid ciphertext is 9602 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 9603 paper.) 9604 9605 Before 0.9.5, the countermeasure (hide the error by generating a 9606 random 'decryption result') did not work properly because 9607 ERR_clear_error() was missing, meaning that SSL_get_error() would 9608 detect the supposedly ignored error. 9609 9610 Both problems are now fixed. 9611 [Bodo Moeller] 9612 9613 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 9614 (previously it was 1024). 9615 [Bodo Moeller] 9616 9617 *) Fix for compatibility mode trust settings: ignore trust settings 9618 unless some valid trust or reject settings are present. 9619 [Steve Henson] 9620 9621 *) Fix for blowfish EVP: its a variable length cipher. 9622 [Steve Henson] 9623 9624 *) Fix various bugs related to DSA S/MIME verification. Handle missing 9625 parameters in DSA public key structures and return an error in the 9626 DSA routines if parameters are absent. 9627 [Steve Henson] 9628 9629 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 9630 in the current directory if neither $RANDFILE nor $HOME was set. 9631 RAND_file_name() in 0.9.6a returned NULL in this case. This has 9632 caused some confusion to Windows users who haven't defined $HOME. 9633 Thus RAND_file_name() is changed again: e_os.h can define a 9634 DEFAULT_HOME, which will be used if $HOME is not set. 9635 For Windows, we use "C:"; on other platforms, we still require 9636 environment variables. 9637 9638 *) Move 'if (!initialized) RAND_poll()' into regions protected by 9639 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 9640 having multiple threads call RAND_poll() concurrently. 9641 [Bodo Moeller] 9642 9643 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 9644 combination of a flag and a thread ID variable. 9645 Otherwise while one thread is in ssleay_rand_bytes (which sets the 9646 flag), *other* threads can enter ssleay_add_bytes without obeying 9647 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 9648 that they do not hold after the first thread unsets add_do_not_lock). 9649 [Bodo Moeller] 9650 9651 *) Change bctest again: '-x' expressions are not available in all 9652 versions of 'test'. 9653 [Bodo Moeller] 9654 9655 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 9656 9657 *) Fix a couple of memory leaks in PKCS7_dataDecode() 9658 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 9659 9660 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 9661 the default extension for executables, if any. Also, make the perl 9662 scripts that use symlink() to test if it really exists and use "cp" 9663 if it doesn't. All this made OpenSSL compilable and installable in 9664 CygWin. 9665 [Richard Levitte] 9666 9667 *) Fix for asn1_GetSequence() for indefinite length constructed data. 9668 If SEQUENCE is length is indefinite just set c->slen to the total 9669 amount of data available. 9670 [Steve Henson, reported by shige@FreeBSD.org] 9671 [This change does not apply to 0.9.7.] 9672 9673 *) Change bctest to avoid here-documents inside command substitution 9674 (workaround for FreeBSD /bin/sh bug). 9675 For compatibility with Ultrix, avoid shell functions (introduced 9676 in the bctest version that searches along $PATH). 9677 [Bodo Moeller] 9678 9679 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 9680 with des_encrypt() defined on some operating systems, like Solaris 9681 and UnixWare. 9682 [Richard Levitte] 9683 9684 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 9685 On the Importance of Eliminating Errors in Cryptographic 9686 Computations, J. Cryptology 14 (2001) 2, 101-119, 9687 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 9688 [Ulf Moeller] 9689 9690 *) MIPS assembler BIGNUM division bug fix. 9691 [Andy Polyakov] 9692 9693 *) Disabled incorrect Alpha assembler code. 9694 [Richard Levitte] 9695 9696 *) Fix PKCS#7 decode routines so they correctly update the length 9697 after reading an EOC for the EXPLICIT tag. 9698 [Steve Henson] 9699 [This change does not apply to 0.9.7.] 9700 9701 *) Fix bug in PKCS#12 key generation routines. This was triggered 9702 if a 3DES key was generated with a 0 initial byte. Include 9703 PKCS12_BROKEN_KEYGEN compilation option to retain the old 9704 (but broken) behaviour. 9705 [Steve Henson] 9706 9707 *) Enhance bctest to search for a working bc along $PATH and print 9708 it when found. 9709 [Tim Rice <tim@multitalents.net> via Richard Levitte] 9710 9711 *) Fix memory leaks in err.c: free err_data string if necessary; 9712 don't write to the wrong index in ERR_set_error_data. 9713 [Bodo Moeller] 9714 9715 *) Implement ssl23_peek (analogous to ssl23_read), which previously 9716 did not exist. 9717 [Bodo Moeller] 9718 9719 *) Replace rdtsc with _emit statements for VC++ version 5. 9720 [Jeremy Cooper <jeremy@baymoo.org>] 9721 9722 *) Make it possible to reuse SSLv2 sessions. 9723 [Richard Levitte] 9724 9725 *) In copy_email() check for >= 0 as a return value for 9726 X509_NAME_get_index_by_NID() since 0 is a valid index. 9727 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 9728 9729 *) Avoid coredump with unsupported or invalid public keys by checking if 9730 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 9731 PKCS7_verify() fails with non detached data. 9732 [Steve Henson] 9733 9734 *) Don't use getenv in library functions when run as setuid/setgid. 9735 New function OPENSSL_issetugid(). 9736 [Ulf Moeller] 9737 9738 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 9739 due to incorrect handling of multi-threading: 9740 9741 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 9742 9743 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 9744 9745 3. Count how many times MemCheck_off() has been called so that 9746 nested use can be treated correctly. This also avoids 9747 inband-signalling in the previous code (which relied on the 9748 assumption that thread ID 0 is impossible). 9749 [Bodo Moeller] 9750 9751 *) Add "-rand" option also to s_client and s_server. 9752 [Lutz Jaenicke] 9753 9754 *) Fix CPU detection on Irix 6.x. 9755 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 9756 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 9757 9758 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 9759 was empty. 9760 [Steve Henson] 9761 [This change does not apply to 0.9.7.] 9762 9763 *) Use the cached encoding of an X509_NAME structure rather than 9764 copying it. This is apparently the reason for the libsafe "errors" 9765 but the code is actually correct. 9766 [Steve Henson] 9767 9768 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 9769 Bleichenbacher's DSA attack. 9770 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 9771 to be set and top=0 forces the highest bit to be set; top=-1 is new 9772 and leaves the highest bit random. 9773 [Ulf Moeller, Bodo Moeller] 9774 9775 *) In the NCONF_...-based implementations for CONF_... queries 9776 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 9777 a temporary CONF structure with the data component set to NULL 9778 (which gives segmentation faults in lh_retrieve). 9779 Instead, use NULL for the CONF pointer in CONF_get_string and 9780 CONF_get_number (which may use environment variables) and directly 9781 return NULL from CONF_get_section. 9782 [Bodo Moeller] 9783 9784 *) Fix potential buffer overrun for EBCDIC. 9785 [Ulf Moeller] 9786 9787 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 9788 keyUsage if basicConstraints absent for a CA. 9789 [Steve Henson] 9790 9791 *) Make SMIME_write_PKCS7() write mail header values with a format that 9792 is more generally accepted (no spaces before the semicolon), since 9793 some programs can't parse those values properly otherwise. Also make 9794 sure BIO's that break lines after each write do not create invalid 9795 headers. 9796 [Richard Levitte] 9797 9798 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 9799 macros previously used would not encode an empty SEQUENCE OF 9800 and break the signature. 9801 [Steve Henson] 9802 [This change does not apply to 0.9.7.] 9803 9804 *) Zero the premaster secret after deriving the master secret in 9805 DH ciphersuites. 9806 [Steve Henson] 9807 9808 *) Add some EVP_add_digest_alias registrations (as found in 9809 OpenSSL_add_all_digests()) to SSL_library_init() 9810 aka OpenSSL_add_ssl_algorithms(). This provides improved 9811 compatibility with peers using X.509 certificates 9812 with unconventional AlgorithmIdentifier OIDs. 9813 [Bodo Moeller] 9814 9815 *) Fix for Irix with NO_ASM. 9816 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 9817 9818 *) ./config script fixes. 9819 [Ulf Moeller, Richard Levitte] 9820 9821 *) Fix 'openssl passwd -1'. 9822 [Bodo Moeller] 9823 9824 *) Change PKCS12_key_gen_asc() so it can cope with non null 9825 terminated strings whose length is passed in the passlen 9826 parameter, for example from PEM callbacks. This was done 9827 by adding an extra length parameter to asc2uni(). 9828 [Steve Henson, reported by <oddissey@samsung.co.kr>] 9829 9830 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 9831 call failed, free the DSA structure. 9832 [Bodo Moeller] 9833 9834 *) Fix to uni2asc() to cope with zero length Unicode strings. 9835 These are present in some PKCS#12 files. 9836 [Steve Henson] 9837 9838 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 9839 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 9840 when writing a 32767 byte record. 9841 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 9842 9843 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 9844 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 9845 9846 (RSA objects have a reference count access to which is protected 9847 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 9848 so they are meant to be shared between threads.) 9849 [Bodo Moeller, Geoff Thorpe; original patch submitted by 9850 "Reddie, Steven" <Steven.Reddie@ca.com>] 9851 9852 *) Fix a deadlock in CRYPTO_mem_leaks(). 9853 [Bodo Moeller] 9854 9855 *) Use better test patterns in bntest. 9856 [Ulf Möller] 9857 9858 *) rand_win.c fix for Borland C. 9859 [Ulf Möller] 9860 9861 *) BN_rshift bugfix for n == 0. 9862 [Bodo Moeller] 9863 9864 *) Add a 'bctest' script that checks for some known 'bc' bugs 9865 so that 'make test' does not abort just because 'bc' is broken. 9866 [Bodo Moeller] 9867 9868 *) Store verify_result within SSL_SESSION also for client side to 9869 avoid potential security hole. (Re-used sessions on the client side 9870 always resulted in verify_result==X509_V_OK, not using the original 9871 result of the server certificate verification.) 9872 [Lutz Jaenicke] 9873 9874 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 9875 SSL3_RT_APPLICATION_DATA, return 0. 9876 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 9877 [Bodo Moeller] 9878 9879 *) Fix SSL_peek: 9880 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 9881 releases, have been re-implemented by renaming the previous 9882 implementations of ssl2_read and ssl3_read to ssl2_read_internal 9883 and ssl3_read_internal, respectively, and adding 'peek' parameters 9884 to them. The new ssl[23]_{read,peek} functions are calls to 9885 ssl[23]_read_internal with the 'peek' flag set appropriately. 9886 A 'peek' parameter has also been added to ssl3_read_bytes, which 9887 does the actual work for ssl3_read_internal. 9888 [Bodo Moeller] 9889 9890 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 9891 the method-specific "init()" handler. Also clean up ex_data after 9892 calling the method-specific "finish()" handler. Previously, this was 9893 happening the other way round. 9894 [Geoff Thorpe] 9895 9896 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 9897 The previous value, 12, was not always sufficient for BN_mod_exp(). 9898 [Bodo Moeller] 9899 9900 *) Make sure that shared libraries get the internal name engine with 9901 the full version number and not just 0. This should mark the 9902 shared libraries as not backward compatible. Of course, this should 9903 be changed again when we can guarantee backward binary compatibility. 9904 [Richard Levitte] 9905 9906 *) Fix typo in get_cert_by_subject() in by_dir.c 9907 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 9908 9909 *) Rework the system to generate shared libraries: 9910 9911 - Make note of the expected extension for the shared libraries and 9912 if there is a need for symbolic links from for example libcrypto.so.0 9913 to libcrypto.so.0.9.7. There is extended info in Configure for 9914 that. 9915 9916 - Make as few rebuilds of the shared libraries as possible. 9917 9918 - Still avoid linking the OpenSSL programs with the shared libraries. 9919 9920 - When installing, install the shared libraries separately from the 9921 static ones. 9922 [Richard Levitte] 9923 9924 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 9925 9926 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 9927 and not in SSL_clear because the latter is also used by the 9928 accept/connect functions; previously, the settings made by 9929 SSL_set_read_ahead would be lost during the handshake. 9930 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 9931 9932 *) Correct util/mkdef.pl to be selective about disabled algorithms. 9933 Previously, it would create entries for disabled algorithms no 9934 matter what. 9935 [Richard Levitte] 9936 9937 *) Added several new manual pages for SSL_* function. 9938 [Lutz Jaenicke] 9939 9940 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 9941 9942 *) In ssl23_get_client_hello, generate an error message when faced 9943 with an initial SSL 3.0/TLS record that is too small to contain the 9944 first two bytes of the ClientHello message, i.e. client_version. 9945 (Note that this is a pathologic case that probably has never happened 9946 in real life.) The previous approach was to use the version number 9947 from the record header as a substitute; but our protocol choice 9948 should not depend on that one because it is not authenticated 9949 by the Finished messages. 9950 [Bodo Moeller] 9951 9952 *) More robust randomness gathering functions for Windows. 9953 [Jeffrey Altman <jaltman@columbia.edu>] 9954 9955 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 9956 not set then we don't setup the error code for issuer check errors 9957 to avoid possibly overwriting other errors which the callback does 9958 handle. If an application does set the flag then we assume it knows 9959 what it is doing and can handle the new informational codes 9960 appropriately. 9961 [Steve Henson] 9962 9963 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 9964 a general "ANY" type, as such it should be able to decode anything 9965 including tagged types. However it didn't check the class so it would 9966 wrongly interpret tagged types in the same way as their universal 9967 counterpart and unknown types were just rejected. Changed so that the 9968 tagged and unknown types are handled in the same way as a SEQUENCE: 9969 that is the encoding is stored intact. There is also a new type 9970 "V_ASN1_OTHER" which is used when the class is not universal, in this 9971 case we have no idea what the actual type is so we just lump them all 9972 together. 9973 [Steve Henson] 9974 9975 *) On VMS, stdout may very well lead to a file that is written to 9976 in a record-oriented fashion. That means that every write() will 9977 write a separate record, which will be read separately by the 9978 programs trying to read from it. This can be very confusing. 9979 9980 The solution is to put a BIO filter in the way that will buffer 9981 text until a linefeed is reached, and then write everything a 9982 line at a time, so every record written will be an actual line, 9983 not chunks of lines and not (usually doesn't happen, but I've 9984 seen it once) several lines in one record. BIO_f_linebuffer() is 9985 the answer. 9986 9987 Currently, it's a VMS-only method, because that's where it has 9988 been tested well enough. 9989 [Richard Levitte] 9990 9991 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 9992 it can return incorrect results. 9993 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 9994 but it was in 0.9.6-beta[12].) 9995 [Bodo Moeller] 9996 9997 *) Disable the check for content being present when verifying detached 9998 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 9999 include zero length content when signing messages. 10000 [Steve Henson] 10001 10002 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 10003 BIO_ctrl (for BIO pairs). 10004 [Bodo Möller] 10005 10006 *) Add DSO method for VMS. 10007 [Richard Levitte] 10008 10009 *) Bug fix: Montgomery multiplication could produce results with the 10010 wrong sign. 10011 [Ulf Möller] 10012 10013 *) Add RPM specification openssl.spec and modify it to build three 10014 packages. The default package contains applications, application 10015 documentation and run-time libraries. The devel package contains 10016 include files, static libraries and function documentation. The 10017 doc package contains the contents of the doc directory. The original 10018 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 10019 [Richard Levitte] 10020 10021 *) Add a large number of documentation files for many SSL routines. 10022 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 10023 10024 *) Add a configuration entry for Sony News 4. 10025 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 10026 10027 *) Don't set the two most significant bits to one when generating a 10028 random number < q in the DSA library. 10029 [Ulf Möller] 10030 10031 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 10032 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 10033 the underlying transport is blocking) if a handshake took place. 10034 (The default behaviour is needed by applications such as s_client 10035 and s_server that use select() to determine when to use SSL_read; 10036 but for applications that know in advance when to expect data, it 10037 just makes things more complicated.) 10038 [Bodo Moeller] 10039 10040 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 10041 from EGD. 10042 [Ben Laurie] 10043 10044 *) Add a few more EBCDIC conditionals that make `req' and `x509' 10045 work better on such systems. 10046 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10047 10048 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 10049 Update PKCS12_parse() so it copies the friendlyName and the 10050 keyid to the certificates aux info. 10051 [Steve Henson] 10052 10053 *) Fix bug in PKCS7_verify() which caused an infinite loop 10054 if there was more than one signature. 10055 [Sven Uszpelkat <su@celocom.de>] 10056 10057 *) Major change in util/mkdef.pl to include extra information 10058 about each symbol, as well as presenting variables as well 10059 as functions. This change means that there's n more need 10060 to rebuild the .num files when some algorithms are excluded. 10061 [Richard Levitte] 10062 10063 *) Allow the verify time to be set by an application, 10064 rather than always using the current time. 10065 [Steve Henson] 10066 10067 *) Phase 2 verify code reorganisation. The certificate 10068 verify code now looks up an issuer certificate by a 10069 number of criteria: subject name, authority key id 10070 and key usage. It also verifies self signed certificates 10071 by the same criteria. The main comparison function is 10072 X509_check_issued() which performs these checks. 10073 10074 Lot of changes were necessary in order to support this 10075 without completely rewriting the lookup code. 10076 10077 Authority and subject key identifier are now cached. 10078 10079 The LHASH 'certs' is X509_STORE has now been replaced 10080 by a STACK_OF(X509_OBJECT). This is mainly because an 10081 LHASH can't store or retrieve multiple objects with 10082 the same hash value. 10083 10084 As a result various functions (which were all internal 10085 use only) have changed to handle the new X509_STORE 10086 structure. This will break anything that messed round 10087 with X509_STORE internally. 10088 10089 The functions X509_STORE_add_cert() now checks for an 10090 exact match, rather than just subject name. 10091 10092 The X509_STORE API doesn't directly support the retrieval 10093 of multiple certificates matching a given criteria, however 10094 this can be worked round by performing a lookup first 10095 (which will fill the cache with candidate certificates) 10096 and then examining the cache for matches. This is probably 10097 the best we can do without throwing out X509_LOOKUP 10098 entirely (maybe later...). 10099 10100 The X509_VERIFY_CTX structure has been enhanced considerably. 10101 10102 All certificate lookup operations now go via a get_issuer() 10103 callback. Although this currently uses an X509_STORE it 10104 can be replaced by custom lookups. This is a simple way 10105 to bypass the X509_STORE hackery necessary to make this 10106 work and makes it possible to use more efficient techniques 10107 in future. A very simple version which uses a simple 10108 STACK for its trusted certificate store is also provided 10109 using X509_STORE_CTX_trusted_stack(). 10110 10111 The verify_cb() and verify() callbacks now have equivalents 10112 in the X509_STORE_CTX structure. 10113 10114 X509_STORE_CTX also has a 'flags' field which can be used 10115 to customise the verify behaviour. 10116 [Steve Henson] 10117 10118 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 10119 excludes S/MIME capabilities. 10120 [Steve Henson] 10121 10122 *) When a certificate request is read in keep a copy of the 10123 original encoding of the signed data and use it when outputting 10124 again. Signatures then use the original encoding rather than 10125 a decoded, encoded version which may cause problems if the 10126 request is improperly encoded. 10127 [Steve Henson] 10128 10129 *) For consistency with other BIO_puts implementations, call 10130 buffer_write(b, ...) directly in buffer_puts instead of calling 10131 BIO_write(b, ...). 10132 10133 In BIO_puts, increment b->num_write as in BIO_write. 10134 [Peter.Sylvester@EdelWeb.fr] 10135 10136 *) Fix BN_mul_word for the case where the word is 0. (We have to use 10137 BN_zero, we may not return a BIGNUM with an array consisting of 10138 words set to zero.) 10139 [Bodo Moeller] 10140 10141 *) Avoid calling abort() from within the library when problems are 10142 detected, except if preprocessor symbols have been defined 10143 (such as REF_CHECK, BN_DEBUG etc.). 10144 [Bodo Moeller] 10145 10146 *) New openssl application 'rsautl'. This utility can be 10147 used for low level RSA operations. DER public key 10148 BIO/fp routines also added. 10149 [Steve Henson] 10150 10151 *) New Configure entry and patches for compiling on QNX 4. 10152 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 10153 10154 *) A demo state-machine implementation was sponsored by 10155 Nuron (http://www.nuron.com/) and is now available in 10156 demos/state_machine. 10157 [Ben Laurie] 10158 10159 *) New options added to the 'dgst' utility for signature 10160 generation and verification. 10161 [Steve Henson] 10162 10163 *) Unrecognized PKCS#7 content types are now handled via a 10164 catch all ASN1_TYPE structure. This allows unsupported 10165 types to be stored as a "blob" and an application can 10166 encode and decode it manually. 10167 [Steve Henson] 10168 10169 *) Fix various signed/unsigned issues to make a_strex.c 10170 compile under VC++. 10171 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 10172 10173 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 10174 length if passed a buffer. ASN1_INTEGER_to_BN failed 10175 if passed a NULL BN and its argument was negative. 10176 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 10177 10178 *) Modification to PKCS#7 encoding routines to output definite 10179 length encoding. Since currently the whole structures are in 10180 memory there's not real point in using indefinite length 10181 constructed encoding. However if OpenSSL is compiled with 10182 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 10183 [Steve Henson] 10184 10185 *) Added BIO_vprintf() and BIO_vsnprintf(). 10186 [Richard Levitte] 10187 10188 *) Added more prefixes to parse for in the strings written 10189 through a logging bio, to cover all the levels that are available 10190 through syslog. The prefixes are now: 10191 10192 PANIC, EMERG, EMR => LOG_EMERG 10193 ALERT, ALR => LOG_ALERT 10194 CRIT, CRI => LOG_CRIT 10195 ERROR, ERR => LOG_ERR 10196 WARNING, WARN, WAR => LOG_WARNING 10197 NOTICE, NOTE, NOT => LOG_NOTICE 10198 INFO, INF => LOG_INFO 10199 DEBUG, DBG => LOG_DEBUG 10200 10201 and as before, if none of those prefixes are present at the 10202 beginning of the string, LOG_ERR is chosen. 10203 10204 On Win32, the LOG_* levels are mapped according to this: 10205 10206 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 10207 LOG_WARNING => EVENTLOG_WARNING_TYPE 10208 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 10209 10210 [Richard Levitte] 10211 10212 *) Made it possible to reconfigure with just the configuration 10213 argument "reconf" or "reconfigure". The command line arguments 10214 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 10215 and are retrieved from there when reconfiguring. 10216 [Richard Levitte] 10217 10218 *) MD4 implemented. 10219 [Assar Westerlund <assar@sics.se>, Richard Levitte] 10220 10221 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 10222 [Richard Levitte] 10223 10224 *) The obj_dat.pl script was messing up the sorting of object 10225 names. The reason was that it compared the quoted version 10226 of strings as a result "OCSP" > "OCSP Signing" because 10227 " > SPACE. Changed script to store unquoted versions of 10228 names and add quotes on output. It was also omitting some 10229 names from the lookup table if they were given a default 10230 value (that is if SN is missing it is given the same 10231 value as LN and vice versa), these are now added on the 10232 grounds that if an object has a name we should be able to 10233 look it up. Finally added warning output when duplicate 10234 short or long names are found. 10235 [Steve Henson] 10236 10237 *) Changes needed for Tandem NSK. 10238 [Scott Uroff <scott@xypro.com>] 10239 10240 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 10241 RSA_padding_check_SSLv23(), special padding was never detected 10242 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 10243 version rollback attacks was not effective. 10244 10245 In s23_clnt.c, don't use special rollback-attack detection padding 10246 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 10247 client; similarly, in s23_srvr.c, don't do the rollback check if 10248 SSL 2.0 is the only protocol enabled in the server. 10249 [Bodo Moeller] 10250 10251 *) Make it possible to get hexdumps of unprintable data with 'openssl 10252 asn1parse'. By implication, the functions ASN1_parse_dump() and 10253 BIO_dump_indent() are added. 10254 [Richard Levitte] 10255 10256 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 10257 these print out strings and name structures based on various 10258 flags including RFC2253 support and proper handling of 10259 multibyte characters. Added options to the 'x509' utility 10260 to allow the various flags to be set. 10261 [Steve Henson] 10262 10263 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 10264 Also change the functions X509_cmp_current_time() and 10265 X509_gmtime_adj() work with an ASN1_TIME structure, 10266 this will enable certificates using GeneralizedTime in validity 10267 dates to be checked. 10268 [Steve Henson] 10269 10270 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 10271 negative public key encodings) on by default, 10272 NO_NEG_PUBKEY_BUG can be set to disable it. 10273 [Steve Henson] 10274 10275 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 10276 content octets. An i2c_ASN1_OBJECT is unnecessary because 10277 the encoding can be trivially obtained from the structure. 10278 [Steve Henson] 10279 10280 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 10281 not read locks (CRYPTO_r_[un]lock). 10282 [Bodo Moeller] 10283 10284 *) A first attempt at creating official support for shared 10285 libraries through configuration. I've kept it so the 10286 default is static libraries only, and the OpenSSL programs 10287 are always statically linked for now, but there are 10288 preparations for dynamic linking in place. 10289 This has been tested on Linux and Tru64. 10290 [Richard Levitte] 10291 10292 *) Randomness polling function for Win9x, as described in: 10293 Peter Gutmann, Software Generation of Practically Strong 10294 Random Numbers. 10295 [Ulf Möller] 10296 10297 *) Fix so PRNG is seeded in req if using an already existing 10298 DSA key. 10299 [Steve Henson] 10300 10301 *) New options to smime application. -inform and -outform 10302 allow alternative formats for the S/MIME message including 10303 PEM and DER. The -content option allows the content to be 10304 specified separately. This should allow things like Netscape 10305 form signing output easier to verify. 10306 [Steve Henson] 10307 10308 *) Fix the ASN1 encoding of tags using the 'long form'. 10309 [Steve Henson] 10310 10311 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 10312 STRING types. These convert content octets to and from the 10313 underlying type. The actual tag and length octets are 10314 already assumed to have been read in and checked. These 10315 are needed because all other string types have virtually 10316 identical handling apart from the tag. By having versions 10317 of the ASN1 functions that just operate on content octets 10318 IMPLICIT tagging can be handled properly. It also allows 10319 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 10320 and ASN1_INTEGER are identical apart from the tag. 10321 [Steve Henson] 10322 10323 *) Change the handling of OID objects as follows: 10324 10325 - New object identifiers are inserted in objects.txt, following 10326 the syntax given in objects.README. 10327 - objects.pl is used to process obj_mac.num and create a new 10328 obj_mac.h. 10329 - obj_dat.pl is used to create a new obj_dat.h, using the data in 10330 obj_mac.h. 10331 10332 This is currently kind of a hack, and the perl code in objects.pl 10333 isn't very elegant, but it works as I intended. The simplest way 10334 to check that it worked correctly is to look in obj_dat.h and 10335 check the array nid_objs and make sure the objects haven't moved 10336 around (this is important!). Additions are OK, as well as 10337 consistent name changes. 10338 [Richard Levitte] 10339 10340 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 10341 [Bodo Moeller] 10342 10343 *) Addition of the command line parameter '-rand file' to 'openssl req'. 10344 The given file adds to whatever has already been seeded into the 10345 random pool through the RANDFILE configuration file option or 10346 environment variable, or the default random state file. 10347 [Richard Levitte] 10348 10349 *) mkstack.pl now sorts each macro group into lexical order. 10350 Previously the output order depended on the order the files 10351 appeared in the directory, resulting in needless rewriting 10352 of safestack.h . 10353 [Steve Henson] 10354 10355 *) Patches to make OpenSSL compile under Win32 again. Mostly 10356 work arounds for the VC++ problem that it treats func() as 10357 func(void). Also stripped out the parts of mkdef.pl that 10358 added extra typesafe functions: these no longer exist. 10359 [Steve Henson] 10360 10361 *) Reorganisation of the stack code. The macros are now all 10362 collected in safestack.h . Each macro is defined in terms of 10363 a "stack macro" of the form SKM_<name>(type, a, b). The 10364 DEBUG_SAFESTACK is now handled in terms of function casts, 10365 this has the advantage of retaining type safety without the 10366 use of additional functions. If DEBUG_SAFESTACK is not defined 10367 then the non typesafe macros are used instead. Also modified the 10368 mkstack.pl script to handle the new form. Needs testing to see 10369 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 10370 the default if no major problems. Similar behaviour for ASN1_SET_OF 10371 and PKCS12_STACK_OF. 10372 [Steve Henson] 10373 10374 *) When some versions of IIS use the 'NET' form of private key the 10375 key derivation algorithm is different. Normally MD5(password) is 10376 used as a 128 bit RC4 key. In the modified case 10377 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 10378 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 10379 as the old Netscape_RSA functions except they have an additional 10380 'sgckey' parameter which uses the modified algorithm. Also added 10381 an -sgckey command line option to the rsa utility. Thanks to 10382 Adrian Peck <bertie@ncipher.com> for posting details of the modified 10383 algorithm to openssl-dev. 10384 [Steve Henson] 10385 10386 *) The evp_local.h macros were using 'c.##kname' which resulted in 10387 invalid expansion on some systems (SCO 5.0.5 for example). 10388 Corrected to 'c.kname'. 10389 [Phillip Porch <root@theporch.com>] 10390 10391 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 10392 a STACK of email addresses from a certificate or request, these look 10393 in the subject name and the subject alternative name extensions and 10394 omit any duplicate addresses. 10395 [Steve Henson] 10396 10397 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 10398 This makes DSA verification about 2 % faster. 10399 [Bodo Moeller] 10400 10401 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 10402 (meaning that now 2^5 values will be precomputed, which is only 4 KB 10403 plus overhead for 1024 bit moduli). 10404 This makes exponentiations about 0.5 % faster for 1024 bit 10405 exponents (as measured by "openssl speed rsa2048"). 10406 [Bodo Moeller] 10407 10408 *) Rename memory handling macros to avoid conflicts with other 10409 software: 10410 Malloc => OPENSSL_malloc 10411 Malloc_locked => OPENSSL_malloc_locked 10412 Realloc => OPENSSL_realloc 10413 Free => OPENSSL_free 10414 [Richard Levitte] 10415 10416 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 10417 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 10418 [Bodo Moeller] 10419 10420 *) CygWin32 support. 10421 [John Jarvie <jjarvie@newsguy.com>] 10422 10423 *) The type-safe stack code has been rejigged. It is now only compiled 10424 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 10425 by default all type-specific stack functions are "#define"d back to 10426 standard stack functions. This results in more streamlined output 10427 but retains the type-safety checking possibilities of the original 10428 approach. 10429 [Geoff Thorpe] 10430 10431 *) The STACK code has been cleaned up, and certain type declarations 10432 that didn't make a lot of sense have been brought in line. This has 10433 also involved a cleanup of sorts in safestack.h to more correctly 10434 map type-safe stack functions onto their plain stack counterparts. 10435 This work has also resulted in a variety of "const"ifications of 10436 lots of the code, especially "_cmp" operations which should normally 10437 be prototyped with "const" parameters anyway. 10438 [Geoff Thorpe] 10439 10440 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 10441 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 10442 (The PRNG state consists of two parts, the large pool 'state' and 'md', 10443 where all of 'md' is used each time the PRNG is used, but 'state' 10444 is used only indexed by a cyclic counter. As entropy may not be 10445 well distributed from the beginning, 'md' is important as a 10446 chaining variable. However, the output function chains only half 10447 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 10448 all of 'md', and seeding with STATE_SIZE dummy bytes will result 10449 in all of 'state' being rewritten, with the new values depending 10450 on virtually all of 'md'. This overcomes the 80 bit limitation.) 10451 [Bodo Moeller] 10452 10453 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 10454 the handshake is continued after ssl_verify_cert_chain(); 10455 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 10456 can lead to 'unexplainable' connection aborts later. 10457 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 10458 10459 *) Major EVP API cipher revision. 10460 Add hooks for extra EVP features. This allows various cipher 10461 parameters to be set in the EVP interface. Support added for variable 10462 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 10463 setting of RC2 and RC5 parameters. 10464 10465 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 10466 ciphers. 10467 10468 Remove lots of duplicated code from the EVP library. For example *every* 10469 cipher init() function handles the 'iv' in the same way according to the 10470 cipher mode. They also all do nothing if the 'key' parameter is NULL and 10471 for CFB and OFB modes they zero ctx->num. 10472 10473 New functionality allows removal of S/MIME code RC2 hack. 10474 10475 Most of the routines have the same form and so can be declared in terms 10476 of macros. 10477 10478 By shifting this to the top level EVP_CipherInit() it can be removed from 10479 all individual ciphers. If the cipher wants to handle IVs or keys 10480 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 10481 flags. 10482 10483 Change lots of functions like EVP_EncryptUpdate() to now return a 10484 value: although software versions of the algorithms cannot fail 10485 any installed hardware versions can. 10486 [Steve Henson] 10487 10488 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 10489 this option is set, tolerate broken clients that send the negotiated 10490 protocol version number instead of the requested protocol version 10491 number. 10492 [Bodo Moeller] 10493 10494 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 10495 i.e. non-zero for export ciphersuites, zero otherwise. 10496 Previous versions had this flag inverted, inconsistent with 10497 rsa_tmp_cb (..._TMP_RSA_CB). 10498 [Bodo Moeller; problem reported by Amit Chopra] 10499 10500 *) Add missing DSA library text string. Work around for some IIS 10501 key files with invalid SEQUENCE encoding. 10502 [Steve Henson] 10503 10504 *) Add a document (doc/standards.txt) that list all kinds of standards 10505 and so on that are implemented in OpenSSL. 10506 [Richard Levitte] 10507 10508 *) Enhance c_rehash script. Old version would mishandle certificates 10509 with the same subject name hash and wouldn't handle CRLs at all. 10510 Added -fingerprint option to crl utility, to support new c_rehash 10511 features. 10512 [Steve Henson] 10513 10514 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 10515 [Ulf Möller] 10516 10517 *) Fix for SSL server purpose checking. Server checking was 10518 rejecting certificates which had extended key usage present 10519 but no ssl client purpose. 10520 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 10521 10522 *) Make PKCS#12 code work with no password. The PKCS#12 spec 10523 is a little unclear about how a blank password is handled. 10524 Since the password in encoded as a BMPString with terminating 10525 double NULL a zero length password would end up as just the 10526 double NULL. However no password at all is different and is 10527 handled differently in the PKCS#12 key generation code. NS 10528 treats a blank password as zero length. MSIE treats it as no 10529 password on export: but it will try both on import. We now do 10530 the same: PKCS12_parse() tries zero length and no password if 10531 the password is set to "" or NULL (NULL is now a valid password: 10532 it wasn't before) as does the pkcs12 application. 10533 [Steve Henson] 10534 10535 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 10536 perror when PEM_read_bio_X509_REQ fails, the error message must 10537 be obtained from the error queue. 10538 [Bodo Moeller] 10539 10540 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 10541 it in ERR_remove_state if appropriate, and change ERR_get_state 10542 accordingly to avoid race conditions (this is necessary because 10543 thread_hash is no longer constant once set). 10544 [Bodo Moeller] 10545 10546 *) Bugfix for linux-elf makefile.one. 10547 [Ulf Möller] 10548 10549 *) RSA_get_default_method() will now cause a default 10550 RSA_METHOD to be chosen if one doesn't exist already. 10551 Previously this was only set during a call to RSA_new() 10552 or RSA_new_method(NULL) meaning it was possible for 10553 RSA_get_default_method() to return NULL. 10554 [Geoff Thorpe] 10555 10556 *) Added native name translation to the existing DSO code 10557 that will convert (if the flag to do so is set) filenames 10558 that are sufficiently small and have no path information 10559 into a canonical native form. Eg. "blah" converted to 10560 "libblah.so" or "blah.dll" etc. 10561 [Geoff Thorpe] 10562 10563 *) New function ERR_error_string_n(e, buf, len) which is like 10564 ERR_error_string(e, buf), but writes at most 'len' bytes 10565 including the 0 terminator. For ERR_error_string_n, 'buf' 10566 may not be NULL. 10567 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 10568 10569 *) CONF library reworked to become more general. A new CONF 10570 configuration file reader "class" is implemented as well as a 10571 new functions (NCONF_*, for "New CONF") to handle it. The now 10572 old CONF_* functions are still there, but are reimplemented to 10573 work in terms of the new functions. Also, a set of functions 10574 to handle the internal storage of the configuration data is 10575 provided to make it easier to write new configuration file 10576 reader "classes" (I can definitely see something reading a 10577 configuration file in XML format, for example), called _CONF_*, 10578 or "the configuration storage API"... 10579 10580 The new configuration file reading functions are: 10581 10582 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 10583 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 10584 10585 NCONF_default, NCONF_WIN32 10586 10587 NCONF_dump_fp, NCONF_dump_bio 10588 10589 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 10590 NCONF_new creates a new CONF object. This works in the same way 10591 as other interfaces in OpenSSL, like the BIO interface. 10592 NCONF_dump_* dump the internal storage of the configuration file, 10593 which is useful for debugging. All other functions take the same 10594 arguments as the old CONF_* functions with the exception of the 10595 first that must be a `CONF *' instead of a `LHASH *'. 10596 10597 To make it easier to use the new classes with the old CONF_* functions, 10598 the function CONF_set_default_method is provided. 10599 [Richard Levitte] 10600 10601 *) Add '-tls1' option to 'openssl ciphers', which was already 10602 mentioned in the documentation but had not been implemented. 10603 (This option is not yet really useful because even the additional 10604 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 10605 [Bodo Moeller] 10606 10607 *) Initial DSO code added into libcrypto for letting OpenSSL (and 10608 OpenSSL-based applications) load shared libraries and bind to 10609 them in a portable way. 10610 [Geoff Thorpe, with contributions from Richard Levitte] 10611 10612 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 10613 10614 *) Make sure _lrotl and _lrotr are only used with MSVC. 10615 10616 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 10617 (the default implementation of RAND_status). 10618 10619 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 10620 to '-clrext' (= clear extensions), as intended and documented. 10621 [Bodo Moeller; inconsistency pointed out by Michael Attili 10622 <attili@amaxo.com>] 10623 10624 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 10625 was larger than the MD block size. 10626 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 10627 10628 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 10629 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 10630 using the passed key: if the passed key was a private key the result 10631 of X509_print(), for example, would be to print out all the private key 10632 components. 10633 [Steve Henson] 10634 10635 *) des_quad_cksum() byte order bug fix. 10636 [Ulf Möller, using the problem description in krb4-0.9.7, where 10637 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 10638 10639 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 10640 discouraged. 10641 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 10642 10643 *) For easily testing in shell scripts whether some command 10644 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 10645 returns with exit code 0 iff no command of the given name is available. 10646 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 10647 the output goes to stdout and nothing is printed to stderr. 10648 Additional arguments are always ignored. 10649 10650 Since for each cipher there is a command of the same name, 10651 the 'no-cipher' compilation switches can be tested this way. 10652 10653 ('openssl no-XXX' is not able to detect pseudo-commands such 10654 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 10655 [Bodo Moeller] 10656 10657 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 10658 [Bodo Moeller] 10659 10660 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 10661 is set; it will be thrown away anyway because each handshake creates 10662 its own key. 10663 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 10664 to parameters -- in previous versions (since OpenSSL 0.9.3) the 10665 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 10666 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 10667 [Bodo Moeller] 10668 10669 *) New s_client option -ign_eof: EOF at stdin is ignored, and 10670 'Q' and 'R' lose their special meanings (quit/renegotiate). 10671 This is part of what -quiet does; unlike -quiet, -ign_eof 10672 does not suppress any output. 10673 [Richard Levitte] 10674 10675 *) Add compatibility options to the purpose and trust code. The 10676 purpose X509_PURPOSE_ANY is "any purpose" which automatically 10677 accepts a certificate or CA, this was the previous behaviour, 10678 with all the associated security issues. 10679 10680 X509_TRUST_COMPAT is the old trust behaviour: only and 10681 automatically trust self signed roots in certificate store. A 10682 new trust setting X509_TRUST_DEFAULT is used to specify that 10683 a purpose has no associated trust setting and it should instead 10684 use the value in the default purpose. 10685 [Steve Henson] 10686 10687 *) Fix the PKCS#8 DSA private key code so it decodes keys again 10688 and fix a memory leak. 10689 [Steve Henson] 10690 10691 *) In util/mkerr.pl (which implements 'make errors'), preserve 10692 reason strings from the previous version of the .c file, as 10693 the default to have only downcase letters (and digits) in 10694 automatically generated reasons codes is not always appropriate. 10695 [Bodo Moeller] 10696 10697 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 10698 using strerror. Previously, ERR_reason_error_string() returned 10699 library names as reason strings for SYSerr; but SYSerr is a special 10700 case where small numbers are errno values, not library numbers. 10701 [Bodo Moeller] 10702 10703 *) Add '-dsaparam' option to 'openssl dhparam' application. This 10704 converts DSA parameters into DH parameters. (When creating parameters, 10705 DSA_generate_parameters is used.) 10706 [Bodo Moeller] 10707 10708 *) Include 'length' (recommended exponent length) in C code generated 10709 by 'openssl dhparam -C'. 10710 [Bodo Moeller] 10711 10712 *) The second argument to set_label in perlasm was already being used 10713 so couldn't be used as a "file scope" flag. Moved to third argument 10714 which was free. 10715 [Steve Henson] 10716 10717 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 10718 instead of RAND_bytes for encryption IVs and salts. 10719 [Bodo Moeller] 10720 10721 *) Include RAND_status() into RAND_METHOD instead of implementing 10722 it only for md_rand.c Otherwise replacing the PRNG by calling 10723 RAND_set_rand_method would be impossible. 10724 [Bodo Moeller] 10725 10726 *) Don't let DSA_generate_key() enter an infinite loop if the random 10727 number generation fails. 10728 [Bodo Moeller] 10729 10730 *) New 'rand' application for creating pseudo-random output. 10731 [Bodo Moeller] 10732 10733 *) Added configuration support for Linux/IA64 10734 [Rolf Haberrecker <rolf@suse.de>] 10735 10736 *) Assembler module support for Mingw32. 10737 [Ulf Möller] 10738 10739 *) Shared library support for HPUX (in shlib/). 10740 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 10741 10742 *) Shared library support for Solaris gcc. 10743 [Lutz Behnke <behnke@trustcenter.de>] 10744 10745 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 10746 10747 *) PKCS7_encrypt() was adding text MIME headers twice because they 10748 were added manually and by SMIME_crlf_copy(). 10749 [Steve Henson] 10750 10751 *) In bntest.c don't call BN_rand with zero bits argument. 10752 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 10753 10754 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 10755 case was implemented. This caused BN_div_recp() to fail occasionally. 10756 [Ulf Möller] 10757 10758 *) Add an optional second argument to the set_label() in the perl 10759 assembly language builder. If this argument exists and is set 10760 to 1 it signals that the assembler should use a symbol whose 10761 scope is the entire file, not just the current function. This 10762 is needed with MASM which uses the format label:: for this scope. 10763 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 10764 10765 *) Change the ASN1 types so they are typedefs by default. Before 10766 almost all types were #define'd to ASN1_STRING which was causing 10767 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 10768 for example. 10769 [Steve Henson] 10770 10771 *) Change names of new functions to the new get1/get0 naming 10772 convention: After 'get1', the caller owns a reference count 10773 and has to call ..._free; 'get0' returns a pointer to some 10774 data structure without incrementing reference counters. 10775 (Some of the existing 'get' functions increment a reference 10776 counter, some don't.) 10777 Similarly, 'set1' and 'add1' functions increase reference 10778 counters or duplicate objects. 10779 [Steve Henson] 10780 10781 *) Allow for the possibility of temp RSA key generation failure: 10782 the code used to assume it always worked and crashed on failure. 10783 [Steve Henson] 10784 10785 *) Fix potential buffer overrun problem in BIO_printf(). 10786 [Ulf Möller, using public domain code by Patrick Powell; problem 10787 pointed out by David Sacerdote <das33@cornell.edu>] 10788 10789 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 10790 RAND_egd() and RAND_status(). In the command line application, 10791 the EGD socket can be specified like a seed file using RANDFILE 10792 or -rand. 10793 [Ulf Möller] 10794 10795 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 10796 Some CAs (e.g. Verisign) distribute certificates in this form. 10797 [Steve Henson] 10798 10799 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 10800 list to exclude them. This means that no special compilation option 10801 is needed to use anonymous DH: it just needs to be included in the 10802 cipher list. 10803 [Steve Henson] 10804 10805 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 10806 EVP_MD_type. The old functionality is available in a new macro called 10807 EVP_MD_md(). Change code that uses it and update docs. 10808 [Steve Henson] 10809 10810 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 10811 where the 'void *' argument is replaced by a function pointer argument. 10812 Previously 'void *' was abused to point to functions, which works on 10813 many platforms, but is not correct. As these functions are usually 10814 called by macros defined in OpenSSL header files, most source code 10815 should work without changes. 10816 [Richard Levitte] 10817 10818 *) <openssl/opensslconf.h> (which is created by Configure) now contains 10819 sections with information on -D... compiler switches used for 10820 compiling the library so that applications can see them. To enable 10821 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 10822 must be defined. E.g., 10823 #define OPENSSL_ALGORITHM_DEFINES 10824 #include <openssl/opensslconf.h> 10825 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 10826 [Richard Levitte, Ulf and Bodo Möller] 10827 10828 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 10829 record layer. 10830 [Bodo Moeller] 10831 10832 *) Change the 'other' type in certificate aux info to a STACK_OF 10833 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 10834 the required ASN1 format: arbitrary types determined by an OID. 10835 [Steve Henson] 10836 10837 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 10838 argument to 'req'. This is not because the function is newer or 10839 better than others it just uses the work 'NEW' in the certificate 10840 request header lines. Some software needs this. 10841 [Steve Henson] 10842 10843 *) Reorganise password command line arguments: now passwords can be 10844 obtained from various sources. Delete the PEM_cb function and make 10845 it the default behaviour: i.e. if the callback is NULL and the 10846 usrdata argument is not NULL interpret it as a null terminated pass 10847 phrase. If usrdata and the callback are NULL then the pass phrase 10848 is prompted for as usual. 10849 [Steve Henson] 10850 10851 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 10852 the support is automatically enabled. The resulting binaries will 10853 autodetect the card and use it if present. 10854 [Ben Laurie and Compaq Inc.] 10855 10856 *) Work around for Netscape hang bug. This sends certificate request 10857 and server done in one record. Since this is perfectly legal in the 10858 SSL/TLS protocol it isn't a "bug" option and is on by default. See 10859 the bugs/SSLv3 entry for more info. 10860 [Steve Henson] 10861 10862 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 10863 [Andy Polyakov] 10864 10865 *) Add -rand argument to smime and pkcs12 applications and read/write 10866 of seed file. 10867 [Steve Henson] 10868 10869 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 10870 [Bodo Moeller] 10871 10872 *) Add command line password options to the remaining applications. 10873 [Steve Henson] 10874 10875 *) Bug fix for BN_div_recp() for numerators with an even number of 10876 bits. 10877 [Ulf Möller] 10878 10879 *) More tests in bntest.c, and changed test_bn output. 10880 [Ulf Möller] 10881 10882 *) ./config recognizes MacOS X now. 10883 [Andy Polyakov] 10884 10885 *) Bug fix for BN_div() when the first words of num and divisor are 10886 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 10887 [Ulf Möller] 10888 10889 *) Add support for various broken PKCS#8 formats, and command line 10890 options to produce them. 10891 [Steve Henson] 10892 10893 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 10894 get temporary BIGNUMs from a BN_CTX. 10895 [Ulf Möller] 10896 10897 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 10898 for p == 0. 10899 [Ulf Möller] 10900 10901 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 10902 include a #define from the old name to the new. The original intent 10903 was that statically linked binaries could for example just call 10904 SSLeay_add_all_ciphers() to just add ciphers to the table and not 10905 link with digests. This never worked because SSLeay_add_all_digests() 10906 and SSLeay_add_all_ciphers() were in the same source file so calling 10907 one would link with the other. They are now in separate source files. 10908 [Steve Henson] 10909 10910 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 10911 [Steve Henson] 10912 10913 *) Use a less unusual form of the Miller-Rabin primality test (it used 10914 a binary algorithm for exponentiation integrated into the Miller-Rabin 10915 loop, our standard modexp algorithms are faster). 10916 [Bodo Moeller] 10917 10918 *) Support for the EBCDIC character set completed. 10919 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 10920 10921 *) Source code cleanups: use const where appropriate, eliminate casts, 10922 use void * instead of char * in lhash. 10923 [Ulf Möller] 10924 10925 *) Bugfix: ssl3_send_server_key_exchange was not restartable 10926 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 10927 this the server could overwrite ephemeral keys that the client 10928 has already seen). 10929 [Bodo Moeller] 10930 10931 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 10932 using 50 iterations of the Rabin-Miller test. 10933 10934 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 10935 iterations of the Rabin-Miller test as required by the appendix 10936 to FIPS PUB 186[-1]) instead of DSA_is_prime. 10937 As BN_is_prime_fasttest includes trial division, DSA parameter 10938 generation becomes much faster. 10939 10940 This implies a change for the callback functions in DSA_is_prime 10941 and DSA_generate_parameters: The callback function is called once 10942 for each positive witness in the Rabin-Miller test, not just 10943 occasionally in the inner loop; and the parameters to the 10944 callback function now provide an iteration count for the outer 10945 loop rather than for the current invocation of the inner loop. 10946 DSA_generate_parameters additionally can call the callback 10947 function with an 'iteration count' of -1, meaning that a 10948 candidate has passed the trial division test (when q is generated 10949 from an application-provided seed, trial division is skipped). 10950 [Bodo Moeller] 10951 10952 *) New function BN_is_prime_fasttest that optionally does trial 10953 division before starting the Rabin-Miller test and has 10954 an additional BN_CTX * argument (whereas BN_is_prime always 10955 has to allocate at least one BN_CTX). 10956 'callback(1, -1, cb_arg)' is called when a number has passed the 10957 trial division stage. 10958 [Bodo Moeller] 10959 10960 *) Fix for bug in CRL encoding. The validity dates weren't being handled 10961 as ASN1_TIME. 10962 [Steve Henson] 10963 10964 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 10965 [Steve Henson] 10966 10967 *) New function BN_pseudo_rand(). 10968 [Ulf Möller] 10969 10970 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 10971 bignum version of BN_from_montgomery() with the working code from 10972 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 10973 the comments. 10974 [Ulf Möller] 10975 10976 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 10977 made it impossible to use the same SSL_SESSION data structure in 10978 SSL2 clients in multiple threads. 10979 [Bodo Moeller] 10980 10981 *) The return value of RAND_load_file() no longer counts bytes obtained 10982 by stat(). RAND_load_file(..., -1) is new and uses the complete file 10983 to seed the PRNG (previously an explicit byte count was required). 10984 [Ulf Möller, Bodo Möller] 10985 10986 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 10987 used (char *) instead of (void *) and had casts all over the place. 10988 [Steve Henson] 10989 10990 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 10991 [Ulf Möller] 10992 10993 *) Retain source code compatibility for BN_prime_checks macro: 10994 BN_is_prime(..., BN_prime_checks, ...) now uses 10995 BN_prime_checks_for_size to determine the appropriate number of 10996 Rabin-Miller iterations. 10997 [Ulf Möller] 10998 10999 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 11000 DH_CHECK_P_NOT_SAFE_PRIME. 11001 (Check if this is true? OpenPGP calls them "strong".) 11002 [Ulf Möller] 11003 11004 *) Merge the functionality of "dh" and "gendh" programs into a new program 11005 "dhparam". The old programs are retained for now but will handle DH keys 11006 (instead of parameters) in future. 11007 [Steve Henson] 11008 11009 *) Make the ciphers, s_server and s_client programs check the return values 11010 when a new cipher list is set. 11011 [Steve Henson] 11012 11013 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 11014 ciphers. Before when the 56bit ciphers were enabled the sorting was 11015 wrong. 11016 11017 The syntax for the cipher sorting has been extended to support sorting by 11018 cipher-strength (using the strength_bits hard coded in the tables). 11019 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 11020 11021 Fix a bug in the cipher-command parser: when supplying a cipher command 11022 string with an "undefined" symbol (neither command nor alphanumeric 11023 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 11024 an error is flagged. 11025 11026 Due to the strength-sorting extension, the code of the 11027 ssl_create_cipher_list() function was completely rearranged. I hope that 11028 the readability was also increased :-) 11029 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 11030 11031 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 11032 for the first serial number and places 2 in the serial number file. This 11033 avoids problems when the root CA is created with serial number zero and 11034 the first user certificate has the same issuer name and serial number 11035 as the root CA. 11036 [Steve Henson] 11037 11038 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 11039 the new code. Add documentation for this stuff. 11040 [Steve Henson] 11041 11042 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 11043 X509_*() to X509at_*() on the grounds that they don't handle X509 11044 structures and behave in an analogous way to the X509v3 functions: 11045 they shouldn't be called directly but wrapper functions should be used 11046 instead. 11047 11048 So we also now have some wrapper functions that call the X509at functions 11049 when passed certificate requests. (TO DO: similar things can be done with 11050 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 11051 things. Some of these need some d2i or i2d and print functionality 11052 because they handle more complex structures.) 11053 [Steve Henson] 11054 11055 *) Add missing #ifndefs that caused missing symbols when building libssl 11056 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 11057 NO_RSA in ssl/s2*.c. 11058 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller] 11059 11060 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 11061 has a return value which indicates the quality of the random data 11062 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 11063 error queue. New function RAND_pseudo_bytes() generates output that is 11064 guaranteed to be unique but not unpredictable. RAND_add is like 11065 RAND_seed, but takes an extra argument for an entropy estimate 11066 (RAND_seed always assumes full entropy). 11067 [Ulf Möller] 11068 11069 *) Do more iterations of Rabin-Miller probable prime test (specifically, 11070 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 11071 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 11072 in crypto/bn/bn_prime.c for the complete table). This guarantees a 11073 false-positive rate of at most 2^-80 for random input. 11074 [Bodo Moeller] 11075 11076 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 11077 [Bodo Moeller] 11078 11079 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 11080 in the 0.9.5 release), this returns the chain 11081 from an X509_CTX structure with a dup of the stack and all 11082 the X509 reference counts upped: so the stack will exist 11083 after X509_CTX_cleanup() has been called. Modify pkcs12.c 11084 to use this. 11085 11086 Also make SSL_SESSION_print() print out the verify return 11087 code. 11088 [Steve Henson] 11089 11090 *) Add manpage for the pkcs12 command. Also change the default 11091 behaviour so MAC iteration counts are used unless the new 11092 -nomaciter option is used. This improves file security and 11093 only older versions of MSIE (4.0 for example) need it. 11094 [Steve Henson] 11095 11096 *) Honor the no-xxx Configure options when creating .DEF files. 11097 [Ulf Möller] 11098 11099 *) Add PKCS#10 attributes to field table: challengePassword, 11100 unstructuredName and unstructuredAddress. These are taken from 11101 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 11102 international characters are used. 11103 11104 More changes to X509_ATTRIBUTE code: allow the setting of types 11105 based on strings. Remove the 'loc' parameter when adding 11106 attributes because these will be a SET OF encoding which is sorted 11107 in ASN1 order. 11108 [Steve Henson] 11109 11110 *) Initial changes to the 'req' utility to allow request generation 11111 automation. This will allow an application to just generate a template 11112 file containing all the field values and have req construct the 11113 request. 11114 11115 Initial support for X509_ATTRIBUTE handling. Stacks of these are 11116 used all over the place including certificate requests and PKCS#7 11117 structures. They are currently handled manually where necessary with 11118 some primitive wrappers for PKCS#7. The new functions behave in a 11119 manner analogous to the X509 extension functions: they allow 11120 attributes to be looked up by NID and added. 11121 11122 Later something similar to the X509V3 code would be desirable to 11123 automatically handle the encoding, decoding and printing of the 11124 more complex types. The string types like challengePassword can 11125 be handled by the string table functions. 11126 11127 Also modified the multi byte string table handling. Now there is 11128 a 'global mask' which masks out certain types. The table itself 11129 can use the flag STABLE_NO_MASK to ignore the mask setting: this 11130 is useful when for example there is only one permissible type 11131 (as in countryName) and using the mask might result in no valid 11132 types at all. 11133 [Steve Henson] 11134 11135 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 11136 SSL_get_peer_finished to allow applications to obtain the latest 11137 Finished messages sent to the peer or expected from the peer, 11138 respectively. (SSL_get_peer_finished is usually the Finished message 11139 actually received from the peer, otherwise the protocol will be aborted.) 11140 11141 As the Finished message are message digests of the complete handshake 11142 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 11143 be used for external authentication procedures when the authentication 11144 provided by SSL/TLS is not desired or is not enough. 11145 [Bodo Moeller] 11146 11147 *) Enhanced support for Alpha Linux is added. Now ./config checks if 11148 the host supports BWX extension and if Compaq C is present on the 11149 $PATH. Just exploiting of the BWX extension results in 20-30% 11150 performance kick for some algorithms, e.g. DES and RC4 to mention 11151 a couple. Compaq C in turn generates ~20% faster code for MD5 and 11152 SHA1. 11153 [Andy Polyakov] 11154 11155 *) Add support for MS "fast SGC". This is arguably a violation of the 11156 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 11157 weak crypto and after checking the certificate is SGC a second one 11158 with strong crypto. MS SGC stops the first handshake after receiving 11159 the server certificate message and sends a second client hello. Since 11160 a server will typically do all the time consuming operations before 11161 expecting any further messages from the client (server key exchange 11162 is the most expensive) there is little difference between the two. 11163 11164 To get OpenSSL to support MS SGC we have to permit a second client 11165 hello message after we have sent server done. In addition we have to 11166 reset the MAC if we do get this second client hello. 11167 [Steve Henson] 11168 11169 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 11170 if a DER encoded private key is RSA or DSA traditional format. Changed 11171 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 11172 format DER encoded private key. Newer code should use PKCS#8 format which 11173 has the key type encoded in the ASN1 structure. Added DER private key 11174 support to pkcs8 application. 11175 [Steve Henson] 11176 11177 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 11178 ciphersuites has been selected (as required by the SSL 3/TLS 1 11179 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 11180 is set, we interpret this as a request to violate the specification 11181 (the worst that can happen is a handshake failure, and 'correct' 11182 behaviour would result in a handshake failure anyway). 11183 [Bodo Moeller] 11184 11185 *) In SSL_CTX_add_session, take into account that there might be multiple 11186 SSL_SESSION structures with the same session ID (e.g. when two threads 11187 concurrently obtain them from an external cache). 11188 The internal cache can handle only one SSL_SESSION with a given ID, 11189 so if there's a conflict, we now throw out the old one to achieve 11190 consistency. 11191 [Bodo Moeller] 11192 11193 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 11194 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 11195 some routines that use cipher OIDs: some ciphers do not have OIDs 11196 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 11197 example. 11198 [Steve Henson] 11199 11200 *) Simplify the trust setting structure and code. Now we just have 11201 two sequences of OIDs for trusted and rejected settings. These will 11202 typically have values the same as the extended key usage extension 11203 and any application specific purposes. 11204 11205 The trust checking code now has a default behaviour: it will just 11206 check for an object with the same NID as the passed id. Functions can 11207 be provided to override either the default behaviour or the behaviour 11208 for a given id. SSL client, server and email already have functions 11209 in place for compatibility: they check the NID and also return "trusted" 11210 if the certificate is self signed. 11211 [Steve Henson] 11212 11213 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 11214 traditional format into an EVP_PKEY structure. 11215 [Steve Henson] 11216 11217 *) Add a password callback function PEM_cb() which either prompts for 11218 a password if usr_data is NULL or otherwise assumes it is a null 11219 terminated password. Allow passwords to be passed on command line 11220 environment or config files in a few more utilities. 11221 [Steve Henson] 11222 11223 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 11224 keys. Add some short names for PKCS#8 PBE algorithms and allow them 11225 to be specified on the command line for the pkcs8 and pkcs12 utilities. 11226 Update documentation. 11227 [Steve Henson] 11228 11229 *) Support for ASN1 "NULL" type. This could be handled before by using 11230 ASN1_TYPE but there wasn't any function that would try to read a NULL 11231 and produce an error if it couldn't. For compatibility we also have 11232 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 11233 don't allocate anything because they don't need to. 11234 [Steve Henson] 11235 11236 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 11237 for details. 11238 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 11239 11240 *) Rebuild of the memory allocation routines used by OpenSSL code and 11241 possibly others as well. The purpose is to make an interface that 11242 provide hooks so anyone can build a separate set of allocation and 11243 deallocation routines to be used by OpenSSL, for example memory 11244 pool implementations, or something else, which was previously hard 11245 since Malloc(), Realloc() and Free() were defined as macros having 11246 the values malloc, realloc and free, respectively (except for Win32 11247 compilations). The same is provided for memory debugging code. 11248 OpenSSL already comes with functionality to find memory leaks, but 11249 this gives people a chance to debug other memory problems. 11250 11251 With these changes, a new set of functions and macros have appeared: 11252 11253 CRYPTO_set_mem_debug_functions() [F] 11254 CRYPTO_get_mem_debug_functions() [F] 11255 CRYPTO_dbg_set_options() [F] 11256 CRYPTO_dbg_get_options() [F] 11257 CRYPTO_malloc_debug_init() [M] 11258 11259 The memory debug functions are NULL by default, unless the library 11260 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 11261 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 11262 gives the standard debugging functions that come with OpenSSL) or 11263 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 11264 provided by the library user) must be used. When the standard 11265 debugging functions are used, CRYPTO_dbg_set_options can be used to 11266 request additional information: 11267 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 11268 the CRYPTO_MDEBUG_xxx macro when compiling the library. 11269 11270 Also, things like CRYPTO_set_mem_functions will always give the 11271 expected result (the new set of functions is used for allocation 11272 and deallocation) at all times, regardless of platform and compiler 11273 options. 11274 11275 To finish it up, some functions that were never use in any other 11276 way than through macros have a new API and new semantic: 11277 11278 CRYPTO_dbg_malloc() 11279 CRYPTO_dbg_realloc() 11280 CRYPTO_dbg_free() 11281 11282 All macros of value have retained their old syntax. 11283 [Richard Levitte and Bodo Moeller] 11284 11285 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 11286 ordering of SMIMECapabilities wasn't in "strength order" and there 11287 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 11288 algorithm. 11289 [Steve Henson] 11290 11291 *) Some ASN1 types with illegal zero length encoding (INTEGER, 11292 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 11293 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 11294 11295 *) Merge in my S/MIME library for OpenSSL. This provides a simple 11296 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 11297 functionality to handle multipart/signed properly) and a utility 11298 called 'smime' to call all this stuff. This is based on code I 11299 originally wrote for Celo who have kindly allowed it to be 11300 included in OpenSSL. 11301 [Steve Henson] 11302 11303 *) Add variants des_set_key_checked and des_set_key_unchecked of 11304 des_set_key (aka des_key_sched). Global variable des_check_key 11305 decides which of these is called by des_set_key; this way 11306 des_check_key behaves as it always did, but applications and 11307 the library itself, which was buggy for des_check_key == 1, 11308 have a cleaner way to pick the version they need. 11309 [Bodo Moeller] 11310 11311 *) New function PKCS12_newpass() which changes the password of a 11312 PKCS12 structure. 11313 [Steve Henson] 11314 11315 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 11316 dynamic mix. In both cases the ids can be used as an index into the 11317 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 11318 functions so they accept a list of the field values and the 11319 application doesn't need to directly manipulate the X509_TRUST 11320 structure. 11321 [Steve Henson] 11322 11323 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 11324 need initialising. 11325 [Steve Henson] 11326 11327 *) Modify the way the V3 extension code looks up extensions. This now 11328 works in a similar way to the object code: we have some "standard" 11329 extensions in a static table which is searched with OBJ_bsearch() 11330 and the application can add dynamic ones if needed. The file 11331 crypto/x509v3/ext_dat.h now has the info: this file needs to be 11332 updated whenever a new extension is added to the core code and kept 11333 in ext_nid order. There is a simple program 'tabtest.c' which checks 11334 this. New extensions are not added too often so this file can readily 11335 be maintained manually. 11336 11337 There are two big advantages in doing things this way. The extensions 11338 can be looked up immediately and no longer need to be "added" using 11339 X509V3_add_standard_extensions(): this function now does nothing. 11340 [Side note: I get *lots* of email saying the extension code doesn't 11341 work because people forget to call this function] 11342 Also no dynamic allocation is done unless new extensions are added: 11343 so if we don't add custom extensions there is no need to call 11344 X509V3_EXT_cleanup(). 11345 [Steve Henson] 11346 11347 *) Modify enc utility's salting as follows: make salting the default. Add a 11348 magic header, so unsalted files fail gracefully instead of just decrypting 11349 to garbage. This is because not salting is a big security hole, so people 11350 should be discouraged from doing it. 11351 [Ben Laurie] 11352 11353 *) Fixes and enhancements to the 'x509' utility. It allowed a message 11354 digest to be passed on the command line but it only used this 11355 parameter when signing a certificate. Modified so all relevant 11356 operations are affected by the digest parameter including the 11357 -fingerprint and -x509toreq options. Also -x509toreq choked if a 11358 DSA key was used because it didn't fix the digest. 11359 [Steve Henson] 11360 11361 *) Initial certificate chain verify code. Currently tests the untrusted 11362 certificates for consistency with the verify purpose (which is set 11363 when the X509_STORE_CTX structure is set up) and checks the pathlength. 11364 11365 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 11366 this is because it will reject chains with invalid extensions whereas 11367 every previous version of OpenSSL and SSLeay made no checks at all. 11368 11369 Trust code: checks the root CA for the relevant trust settings. Trust 11370 settings have an initial value consistent with the verify purpose: e.g. 11371 if the verify purpose is for SSL client use it expects the CA to be 11372 trusted for SSL client use. However the default value can be changed to 11373 permit custom trust settings: one example of this would be to only trust 11374 certificates from a specific "secure" set of CAs. 11375 11376 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 11377 which should be used for version portability: especially since the 11378 verify structure is likely to change more often now. 11379 11380 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 11381 to set them. If not set then assume SSL clients will verify SSL servers 11382 and vice versa. 11383 11384 Two new options to the verify program: -untrusted allows a set of 11385 untrusted certificates to be passed in and -purpose which sets the 11386 intended purpose of the certificate. If a purpose is set then the 11387 new chain verify code is used to check extension consistency. 11388 [Steve Henson] 11389 11390 *) Support for the authority information access extension. 11391 [Steve Henson] 11392 11393 *) Modify RSA and DSA PEM read routines to transparently handle 11394 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 11395 public keys in a format compatible with certificate 11396 SubjectPublicKeyInfo structures. Unfortunately there were already 11397 functions called *_PublicKey_* which used various odd formats so 11398 these are retained for compatibility: however the DSA variants were 11399 never in a public release so they have been deleted. Changed dsa/rsa 11400 utilities to handle the new format: note no releases ever handled public 11401 keys so we should be OK. 11402 11403 The primary motivation for this change is to avoid the same fiasco 11404 that dogs private keys: there are several incompatible private key 11405 formats some of which are standard and some OpenSSL specific and 11406 require various evil hacks to allow partial transparent handling and 11407 even then it doesn't work with DER formats. Given the option anything 11408 other than PKCS#8 should be dumped: but the other formats have to 11409 stay in the name of compatibility. 11410 11411 With public keys and the benefit of hindsight one standard format 11412 is used which works with EVP_PKEY, RSA or DSA structures: though 11413 it clearly returns an error if you try to read the wrong kind of key. 11414 11415 Added a -pubkey option to the 'x509' utility to output the public key. 11416 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 11417 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 11418 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 11419 that do the same as the EVP_PKEY_assign_*() except they up the 11420 reference count of the added key (they don't "swallow" the 11421 supplied key). 11422 [Steve Henson] 11423 11424 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 11425 CRLs would fail if the file contained no certificates or no CRLs: 11426 added a new function to read in both types and return the number 11427 read: this means that if none are read it will be an error. The 11428 DER versions of the certificate and CRL reader would always fail 11429 because it isn't possible to mix certificates and CRLs in DER format 11430 without choking one or the other routine. Changed this to just read 11431 a certificate: this is the best we can do. Also modified the code 11432 in apps/verify.c to take notice of return codes: it was previously 11433 attempting to read in certificates from NULL pointers and ignoring 11434 any errors: this is one reason why the cert and CRL reader seemed 11435 to work. It doesn't check return codes from the default certificate 11436 routines: these may well fail if the certificates aren't installed. 11437 [Steve Henson] 11438 11439 *) Code to support otherName option in GeneralName. 11440 [Steve Henson] 11441 11442 *) First update to verify code. Change the verify utility 11443 so it warns if it is passed a self signed certificate: 11444 for consistency with the normal behaviour. X509_verify 11445 has been modified to it will now verify a self signed 11446 certificate if *exactly* the same certificate appears 11447 in the store: it was previously impossible to trust a 11448 single self signed certificate. This means that: 11449 openssl verify ss.pem 11450 now gives a warning about a self signed certificate but 11451 openssl verify -CAfile ss.pem ss.pem 11452 is OK. 11453 [Steve Henson] 11454 11455 *) For servers, store verify_result in SSL_SESSION data structure 11456 (and add it to external session representation). 11457 This is needed when client certificate verifications fails, 11458 but an application-provided verification callback (set by 11459 SSL_CTX_set_cert_verify_callback) allows accepting the session 11460 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 11461 but returns 1): When the session is reused, we have to set 11462 ssl->verify_result to the appropriate error code to avoid 11463 security holes. 11464 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 11465 11466 *) Fix a bug in the new PKCS#7 code: it didn't consider the 11467 case in PKCS7_dataInit() where the signed PKCS7 structure 11468 didn't contain any existing data because it was being created. 11469 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 11470 11471 *) Add a salt to the key derivation routines in enc.c. This 11472 forms the first 8 bytes of the encrypted file. Also add a 11473 -S option to allow a salt to be input on the command line. 11474 [Steve Henson] 11475 11476 *) New function X509_cmp(). Oddly enough there wasn't a function 11477 to compare two certificates. We do this by working out the SHA1 11478 hash and comparing that. X509_cmp() will be needed by the trust 11479 code. 11480 [Steve Henson] 11481 11482 *) SSL_get1_session() is like SSL_get_session(), but increments 11483 the reference count in the SSL_SESSION returned. 11484 [Geoff Thorpe <geoff@eu.c2.net>] 11485 11486 *) Fix for 'req': it was adding a null to request attributes. 11487 Also change the X509_LOOKUP and X509_INFO code to handle 11488 certificate auxiliary information. 11489 [Steve Henson] 11490 11491 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 11492 the 'enc' command. 11493 [Steve Henson] 11494 11495 *) Add the possibility to add extra information to the memory leak 11496 detecting output, to form tracebacks, showing from where each 11497 allocation was originated: CRYPTO_push_info("constant string") adds 11498 the string plus current file name and line number to a per-thread 11499 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 11500 is like calling CYRPTO_pop_info() until the stack is empty. 11501 Also updated memory leak detection code to be multi-thread-safe. 11502 [Richard Levitte] 11503 11504 *) Add options -text and -noout to pkcs7 utility and delete the 11505 encryption options which never did anything. Update docs. 11506 [Steve Henson] 11507 11508 *) Add options to some of the utilities to allow the pass phrase 11509 to be included on either the command line (not recommended on 11510 OSes like Unix) or read from the environment. Update the 11511 manpages and fix a few bugs. 11512 [Steve Henson] 11513 11514 *) Add a few manpages for some of the openssl commands. 11515 [Steve Henson] 11516 11517 *) Fix the -revoke option in ca. It was freeing up memory twice, 11518 leaking and not finding already revoked certificates. 11519 [Steve Henson] 11520 11521 *) Extensive changes to support certificate auxiliary information. 11522 This involves the use of X509_CERT_AUX structure and X509_AUX 11523 functions. An X509_AUX function such as PEM_read_X509_AUX() 11524 can still read in a certificate file in the usual way but it 11525 will also read in any additional "auxiliary information". By 11526 doing things this way a fair degree of compatibility can be 11527 retained: existing certificates can have this information added 11528 using the new 'x509' options. 11529 11530 Current auxiliary information includes an "alias" and some trust 11531 settings. The trust settings will ultimately be used in enhanced 11532 certificate chain verification routines: currently a certificate 11533 can only be trusted if it is self signed and then it is trusted 11534 for all purposes. 11535 [Steve Henson] 11536 11537 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 11538 The problem was that one of the replacement routines had not been working 11539 since SSLeay releases. For now the offending routine has been replaced 11540 with non-optimised assembler. Even so, this now gives around 95% 11541 performance improvement for 1024 bit RSA signs. 11542 [Mark Cox] 11543 11544 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 11545 handling. Most clients have the effective key size in bits equal to 11546 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 11547 A few however don't do this and instead use the size of the decrypted key 11548 to determine the RC2 key length and the AlgorithmIdentifier to determine 11549 the effective key length. In this case the effective key length can still 11550 be 40 bits but the key length can be 168 bits for example. This is fixed 11551 by manually forcing an RC2 key into the EVP_PKEY structure because the 11552 EVP code can't currently handle unusual RC2 key sizes: it always assumes 11553 the key length and effective key length are equal. 11554 [Steve Henson] 11555 11556 *) Add a bunch of functions that should simplify the creation of 11557 X509_NAME structures. Now you should be able to do: 11558 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 11559 and have it automatically work out the correct field type and fill in 11560 the structures. The more adventurous can try: 11561 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 11562 and it will (hopefully) work out the correct multibyte encoding. 11563 [Steve Henson] 11564 11565 *) Change the 'req' utility to use the new field handling and multibyte 11566 copy routines. Before the DN field creation was handled in an ad hoc 11567 way in req, ca, and x509 which was rather broken and didn't support 11568 BMPStrings or UTF8Strings. Since some software doesn't implement 11569 BMPStrings or UTF8Strings yet, they can be enabled using the config file 11570 using the dirstring_type option. See the new comment in the default 11571 openssl.cnf for more info. 11572 [Steve Henson] 11573 11574 *) Make crypto/rand/md_rand.c more robust: 11575 - Assure unique random numbers after fork(). 11576 - Make sure that concurrent threads access the global counter and 11577 md serializably so that we never lose entropy in them 11578 or use exactly the same state in multiple threads. 11579 Access to the large state is not always serializable because 11580 the additional locking could be a performance killer, and 11581 md should be large enough anyway. 11582 [Bodo Moeller] 11583 11584 *) New file apps/app_rand.c with commonly needed functionality 11585 for handling the random seed file. 11586 11587 Use the random seed file in some applications that previously did not: 11588 ca, 11589 dsaparam -genkey (which also ignored its '-rand' option), 11590 s_client, 11591 s_server, 11592 x509 (when signing). 11593 Except on systems with /dev/urandom, it is crucial to have a random 11594 seed file at least for key creation, DSA signing, and for DH exchanges; 11595 for RSA signatures we could do without one. 11596 11597 gendh and gendsa (unlike genrsa) used to read only the first byte 11598 of each file listed in the '-rand' option. The function as previously 11599 found in genrsa is now in app_rand.c and is used by all programs 11600 that support '-rand'. 11601 [Bodo Moeller] 11602 11603 *) In RAND_write_file, use mode 0600 for creating files; 11604 don't just chmod when it may be too late. 11605 [Bodo Moeller] 11606 11607 *) Report an error from X509_STORE_load_locations 11608 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 11609 [Bill Perry] 11610 11611 *) New function ASN1_mbstring_copy() this copies a string in either 11612 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 11613 into an ASN1_STRING type. A mask of permissible types is passed 11614 and it chooses the "minimal" type to use or an error if not type 11615 is suitable. 11616 [Steve Henson] 11617 11618 *) Add function equivalents to the various macros in asn1.h. The old 11619 macros are retained with an M_ prefix. Code inside the library can 11620 use the M_ macros. External code (including the openssl utility) 11621 should *NOT* in order to be "shared library friendly". 11622 [Steve Henson] 11623 11624 *) Add various functions that can check a certificate's extensions 11625 to see if it usable for various purposes such as SSL client, 11626 server or S/MIME and CAs of these types. This is currently 11627 VERY EXPERIMENTAL but will ultimately be used for certificate chain 11628 verification. Also added a -purpose flag to x509 utility to 11629 print out all the purposes. 11630 [Steve Henson] 11631 11632 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 11633 functions. 11634 [Steve Henson] 11635 11636 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 11637 for, obtain and decode and extension and obtain its critical flag. 11638 This allows all the necessary extension code to be handled in a 11639 single function call. 11640 [Steve Henson] 11641 11642 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 11643 platforms. See crypto/rc4/rc4_enc.c for further details. 11644 [Andy Polyakov] 11645 11646 *) New -noout option to asn1parse. This causes no output to be produced 11647 its main use is when combined with -strparse and -out to extract data 11648 from a file (which may not be in ASN.1 format). 11649 [Steve Henson] 11650 11651 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 11652 when producing the local key id. 11653 [Richard Levitte <levitte@stacken.kth.se>] 11654 11655 *) New option -dhparam in s_server. This allows a DH parameter file to be 11656 stated explicitly. If it is not stated then it tries the first server 11657 certificate file. The previous behaviour hard coded the filename 11658 "server.pem". 11659 [Steve Henson] 11660 11661 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 11662 a public key to be input or output. For example: 11663 openssl rsa -in key.pem -pubout -out pubkey.pem 11664 Also added necessary DSA public key functions to handle this. 11665 [Steve Henson] 11666 11667 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 11668 in the message. This was handled by allowing 11669 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 11670 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 11671 11672 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 11673 to the end of the strings whereas this didn't. This would cause problems 11674 if strings read with d2i_ASN1_bytes() were later modified. 11675 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 11676 11677 *) Fix for base64 decode bug. When a base64 bio reads only one line of 11678 data and it contains EOF it will end up returning an error. This is 11679 caused by input 46 bytes long. The cause is due to the way base64 11680 BIOs find the start of base64 encoded data. They do this by trying a 11681 trial decode on each line until they find one that works. When they 11682 do a flag is set and it starts again knowing it can pass all the 11683 data directly through the decoder. Unfortunately it doesn't reset 11684 the context it uses. This means that if EOF is reached an attempt 11685 is made to pass two EOFs through the context and this causes the 11686 resulting error. This can also cause other problems as well. As is 11687 usual with these problems it takes *ages* to find and the fix is 11688 trivial: move one line. 11689 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 11690 11691 *) Ugly workaround to get s_client and s_server working under Windows. The 11692 old code wouldn't work because it needed to select() on sockets and the 11693 tty (for keypresses and to see if data could be written). Win32 only 11694 supports select() on sockets so we select() with a 1s timeout on the 11695 sockets and then see if any characters are waiting to be read, if none 11696 are present then we retry, we also assume we can always write data to 11697 the tty. This isn't nice because the code then blocks until we've 11698 received a complete line of data and it is effectively polling the 11699 keyboard at 1s intervals: however it's quite a bit better than not 11700 working at all :-) A dedicated Windows application might handle this 11701 with an event loop for example. 11702 [Steve Henson] 11703 11704 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 11705 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 11706 will be called when RSA_sign() and RSA_verify() are used. This is useful 11707 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 11708 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 11709 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 11710 This necessitated the support of an extra signature type NID_md5_sha1 11711 for SSL signatures and modifications to the SSL library to use it instead 11712 of calling RSA_public_decrypt() and RSA_private_encrypt(). 11713 [Steve Henson] 11714 11715 *) Add new -verify -CAfile and -CApath options to the crl program, these 11716 will lookup a CRL issuers certificate and verify the signature in a 11717 similar way to the verify program. Tidy up the crl program so it 11718 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 11719 less strict. It will now permit CRL extensions even if it is not 11720 a V2 CRL: this will allow it to tolerate some broken CRLs. 11721 [Steve Henson] 11722 11723 *) Initialize all non-automatic variables each time one of the openssl 11724 sub-programs is started (this is necessary as they may be started 11725 multiple times from the "OpenSSL>" prompt). 11726 [Lennart Bang, Bodo Moeller] 11727 11728 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 11729 removing all other RSA functionality (this is what NO_RSA does). This 11730 is so (for example) those in the US can disable those operations covered 11731 by the RSA patent while allowing storage and parsing of RSA keys and RSA 11732 key generation. 11733 [Steve Henson] 11734 11735 *) Non-copying interface to BIO pairs. 11736 (still largely untested) 11737 [Bodo Moeller] 11738 11739 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 11740 ASCII string. This was handled independently in various places before. 11741 [Steve Henson] 11742 11743 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 11744 UTF8 strings a character at a time. 11745 [Steve Henson] 11746 11747 *) Use client_version from client hello to select the protocol 11748 (s23_srvr.c) and for RSA client key exchange verification 11749 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 11750 [Bodo Moeller] 11751 11752 *) Add various utility functions to handle SPKACs, these were previously 11753 handled by poking round in the structure internals. Added new function 11754 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 11755 print, verify and generate SPKACs. Based on an original idea from 11756 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 11757 [Steve Henson] 11758 11759 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 11760 [Andy Polyakov] 11761 11762 *) Allow the config file extension section to be overwritten on the 11763 command line. Based on an original idea from Massimiliano Pala 11764 <madwolf@comune.modena.it>. The new option is called -extensions 11765 and can be applied to ca, req and x509. Also -reqexts to override 11766 the request extensions in req and -crlexts to override the crl extensions 11767 in ca. 11768 [Steve Henson] 11769 11770 *) Add new feature to the SPKAC handling in ca. Now you can include 11771 the same field multiple times by preceding it by "XXXX." for example: 11772 1.OU="Unit name 1" 11773 2.OU="Unit name 2" 11774 this is the same syntax as used in the req config file. 11775 [Steve Henson] 11776 11777 *) Allow certificate extensions to be added to certificate requests. These 11778 are specified in a 'req_extensions' option of the req section of the 11779 config file. They can be printed out with the -text option to req but 11780 are otherwise ignored at present. 11781 [Steve Henson] 11782 11783 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 11784 data read consists of only the final block it would not decrypted because 11785 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 11786 A misplaced 'break' also meant the decrypted final block might not be 11787 copied until the next read. 11788 [Steve Henson] 11789 11790 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 11791 a few extra parameters to the DH structure: these will be useful if 11792 for example we want the value of 'q' or implement X9.42 DH. 11793 [Steve Henson] 11794 11795 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 11796 provides hooks that allow the default DSA functions or functions on a 11797 "per key" basis to be replaced. This allows hardware acceleration and 11798 hardware key storage to be handled without major modification to the 11799 library. Also added low level modexp hooks and CRYPTO_EX structure and 11800 associated functions. 11801 [Steve Henson] 11802 11803 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 11804 as "read only": it can't be written to and the buffer it points to will 11805 not be freed. Reading from a read only BIO is much more efficient than 11806 a normal memory BIO. This was added because there are several times when 11807 an area of memory needs to be read from a BIO. The previous method was 11808 to create a memory BIO and write the data to it, this results in two 11809 copies of the data and an O(n^2) reading algorithm. There is a new 11810 function BIO_new_mem_buf() which creates a read only memory BIO from 11811 an area of memory. Also modified the PKCS#7 routines to use read only 11812 memory BIOs. 11813 [Steve Henson] 11814 11815 *) Bugfix: ssl23_get_client_hello did not work properly when called in 11816 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 11817 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 11818 but a retry condition occurred while trying to read the rest. 11819 [Bodo Moeller] 11820 11821 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 11822 NID_pkcs7_encrypted by default: this was wrong since this should almost 11823 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 11824 the encrypted data type: this is a more sensible place to put it and it 11825 allows the PKCS#12 code to be tidied up that duplicated this 11826 functionality. 11827 [Steve Henson] 11828 11829 *) Changed obj_dat.pl script so it takes its input and output files on 11830 the command line. This should avoid shell escape redirection problems 11831 under Win32. 11832 [Steve Henson] 11833 11834 *) Initial support for certificate extension requests, these are included 11835 in things like Xenroll certificate requests. Included functions to allow 11836 extensions to be obtained and added. 11837 [Steve Henson] 11838 11839 *) -crlf option to s_client and s_server for sending newlines as 11840 CRLF (as required by many protocols). 11841 [Bodo Moeller] 11842 11843 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 11844 11845 *) Install libRSAglue.a when OpenSSL is built with RSAref. 11846 [Ralf S. Engelschall] 11847 11848 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 11849 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 11850 11851 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 11852 program. 11853 [Steve Henson] 11854 11855 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 11856 DH parameters/keys (q is lost during that conversion, but the resulting 11857 DH parameters contain its length). 11858 11859 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 11860 much faster than DH_generate_parameters (which creates parameters 11861 where p = 2*q + 1), and also the smaller q makes DH computations 11862 much more efficient (160-bit exponentiation instead of 1024-bit 11863 exponentiation); so this provides a convenient way to support DHE 11864 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 11865 utter importance to use 11866 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 11867 or 11868 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 11869 when such DH parameters are used, because otherwise small subgroup 11870 attacks may become possible! 11871 [Bodo Moeller] 11872 11873 *) Avoid memory leak in i2d_DHparams. 11874 [Bodo Moeller] 11875 11876 *) Allow the -k option to be used more than once in the enc program: 11877 this allows the same encrypted message to be read by multiple recipients. 11878 [Steve Henson] 11879 11880 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 11881 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 11882 it will always use the numerical form of the OID, even if it has a short 11883 or long name. 11884 [Steve Henson] 11885 11886 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 11887 method only got called if p,q,dmp1,dmq1,iqmp components were present, 11888 otherwise bn_mod_exp was called. In the case of hardware keys for example 11889 no private key components need be present and it might store extra data 11890 in the RSA structure, which cannot be accessed from bn_mod_exp. 11891 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 11892 private key operations. 11893 [Steve Henson] 11894 11895 *) Added support for SPARC Linux. 11896 [Andy Polyakov] 11897 11898 *) pem_password_cb function type incompatibly changed from 11899 typedef int pem_password_cb(char *buf, int size, int rwflag); 11900 to 11901 ....(char *buf, int size, int rwflag, void *userdata); 11902 so that applications can pass data to their callbacks: 11903 The PEM[_ASN1]_{read,write}... functions and macros now take an 11904 additional void * argument, which is just handed through whenever 11905 the password callback is called. 11906 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 11907 11908 New function SSL_CTX_set_default_passwd_cb_userdata. 11909 11910 Compatibility note: As many C implementations push function arguments 11911 onto the stack in reverse order, the new library version is likely to 11912 interoperate with programs that have been compiled with the old 11913 pem_password_cb definition (PEM_whatever takes some data that 11914 happens to be on the stack as its last argument, and the callback 11915 just ignores this garbage); but there is no guarantee whatsoever that 11916 this will work. 11917 11918 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 11919 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 11920 problems not only on Windows, but also on some Unix platforms. 11921 To avoid problematic command lines, these definitions are now in an 11922 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 11923 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 11924 [Bodo Moeller] 11925 11926 *) MIPS III/IV assembler module is reimplemented. 11927 [Andy Polyakov] 11928 11929 *) More DES library cleanups: remove references to srand/rand and 11930 delete an unused file. 11931 [Ulf Möller] 11932 11933 *) Add support for the free Netwide assembler (NASM) under Win32, 11934 since not many people have MASM (ml) and it can be hard to obtain. 11935 This is currently experimental but it seems to work OK and pass all 11936 the tests. Check out INSTALL.W32 for info. 11937 [Steve Henson] 11938 11939 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 11940 without temporary keys kept an extra copy of the server key, 11941 and connections with temporary keys did not free everything in case 11942 of an error. 11943 [Bodo Moeller] 11944 11945 *) New function RSA_check_key and new openssl rsa option -check 11946 for verifying the consistency of RSA keys. 11947 [Ulf Moeller, Bodo Moeller] 11948 11949 *) Various changes to make Win32 compile work: 11950 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 11951 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 11952 comparison" warnings. 11953 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 11954 [Steve Henson] 11955 11956 *) Add a debugging option to PKCS#5 v2 key generation function: when 11957 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 11958 derived keys are printed to stderr. 11959 [Steve Henson] 11960 11961 *) Copy the flags in ASN1_STRING_dup(). 11962 [Roman E. Pavlov <pre@mo.msk.ru>] 11963 11964 *) The x509 application mishandled signing requests containing DSA 11965 keys when the signing key was also DSA and the parameters didn't match. 11966 11967 It was supposed to omit the parameters when they matched the signing key: 11968 the verifying software was then supposed to automatically use the CA's 11969 parameters if they were absent from the end user certificate. 11970 11971 Omitting parameters is no longer recommended. The test was also 11972 the wrong way round! This was probably due to unusual behaviour in 11973 EVP_cmp_parameters() which returns 1 if the parameters match. 11974 This meant that parameters were omitted when they *didn't* match and 11975 the certificate was useless. Certificates signed with 'ca' didn't have 11976 this bug. 11977 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 11978 11979 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 11980 The interface is as follows: 11981 Applications can use 11982 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 11983 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 11984 "off" is now the default. 11985 The library internally uses 11986 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 11987 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 11988 to disable memory-checking temporarily. 11989 11990 Some inconsistent states that previously were possible (and were 11991 even the default) are now avoided. 11992 11993 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 11994 with each memory chunk allocated; this is occasionally more helpful 11995 than just having a counter. 11996 11997 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 11998 11999 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 12000 extensions. 12001 [Bodo Moeller] 12002 12003 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 12004 which largely parallels "options", but is for changing API behaviour, 12005 whereas "options" are about protocol behaviour. 12006 Initial "mode" flags are: 12007 12008 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 12009 a single record has been written. 12010 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 12011 retries use the same buffer location. 12012 (But all of the contents must be 12013 copied!) 12014 [Bodo Moeller] 12015 12016 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 12017 worked. 12018 12019 *) Fix problems with no-hmac etc. 12020 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>] 12021 12022 *) New functions RSA_get_default_method(), RSA_set_method() and 12023 RSA_get_method(). These allows replacement of RSA_METHODs without having 12024 to mess around with the internals of an RSA structure. 12025 [Steve Henson] 12026 12027 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 12028 Also really enable memory leak checks in openssl.c and in some 12029 test programs. 12030 [Chad C. Mulligan, Bodo Moeller] 12031 12032 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 12033 up the length of negative integers. This has now been simplified to just 12034 store the length when it is first determined and use it later, rather 12035 than trying to keep track of where data is copied and updating it to 12036 point to the end. 12037 [Steve Henson, reported by Brien Wheeler 12038 <bwheeler@authentica-security.com>] 12039 12040 *) Add a new function PKCS7_signatureVerify. This allows the verification 12041 of a PKCS#7 signature but with the signing certificate passed to the 12042 function itself. This contrasts with PKCS7_dataVerify which assumes the 12043 certificate is present in the PKCS#7 structure. This isn't always the 12044 case: certificates can be omitted from a PKCS#7 structure and be 12045 distributed by "out of band" means (such as a certificate database). 12046 [Steve Henson] 12047 12048 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 12049 function prototypes in pem.h, also change util/mkdef.pl to add the 12050 necessary function names. 12051 [Steve Henson] 12052 12053 *) mk1mf.pl (used by Windows builds) did not properly read the 12054 options set by Configure in the top level Makefile, and Configure 12055 was not even able to write more than one option correctly. 12056 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 12057 [Bodo Moeller] 12058 12059 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 12060 file to be loaded from a BIO or FILE pointer. The BIO version will 12061 for example allow memory BIOs to contain config info. 12062 [Steve Henson] 12063 12064 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 12065 Whoever hopes to achieve shared-library compatibility across versions 12066 must use this, not the compile-time macro. 12067 (Exercise 0.9.4: Which is the minimum library version required by 12068 such programs?) 12069 Note: All this applies only to multi-threaded programs, others don't 12070 need locks. 12071 [Bodo Moeller] 12072 12073 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 12074 through a BIO pair triggered the default case, i.e. 12075 SSLerr(...,SSL_R_UNKNOWN_STATE). 12076 [Bodo Moeller] 12077 12078 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 12079 can use the SSL library even if none of the specific BIOs is 12080 appropriate. 12081 [Bodo Moeller] 12082 12083 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 12084 for the encoded length. 12085 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 12086 12087 *) Add initial documentation of the X509V3 functions. 12088 [Steve Henson] 12089 12090 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 12091 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 12092 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 12093 secure PKCS#8 private key format with a high iteration count. 12094 [Steve Henson] 12095 12096 *) Fix determination of Perl interpreter: A perl or perl5 12097 _directory_ in $PATH was also accepted as the interpreter. 12098 [Ralf S. Engelschall] 12099 12100 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 12101 wrong with it but it was very old and did things like calling 12102 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 12103 unusual formatting. 12104 [Steve Henson] 12105 12106 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 12107 to use the new extension code. 12108 [Steve Henson] 12109 12110 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 12111 with macros. This should make it easier to change their form, add extra 12112 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 12113 constant. 12114 [Steve Henson] 12115 12116 *) Add to configuration table a new entry that can specify an alternative 12117 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 12118 according to Mark Crispin <MRC@Panda.COM>. 12119 [Bodo Moeller] 12120 12121#if 0 12122 *) DES CBC did not update the IV. Weird. 12123 [Ben Laurie] 12124#else 12125 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 12126 Changing the behaviour of the former might break existing programs -- 12127 where IV updating is needed, des_ncbc_encrypt can be used. 12128#endif 12129 12130 *) When bntest is run from "make test" it drives bc to check its 12131 calculations, as well as internally checking them. If an internal check 12132 fails, it needs to cause bc to give a non-zero result or make test carries 12133 on without noticing the failure. Fixed. 12134 [Ben Laurie] 12135 12136 *) DES library cleanups. 12137 [Ulf Möller] 12138 12139 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 12140 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 12141 ciphers. NOTE: although the key derivation function has been verified 12142 against some published test vectors it has not been extensively tested 12143 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 12144 of v2.0. 12145 [Steve Henson] 12146 12147 *) Instead of "mkdir -p", which is not fully portable, use new 12148 Perl script "util/mkdir-p.pl". 12149 [Bodo Moeller] 12150 12151 *) Rewrite the way password based encryption (PBE) is handled. It used to 12152 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 12153 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 12154 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 12155 the 'parameter' field of the AlgorithmIdentifier is passed to the 12156 underlying key generation function so it must do its own ASN1 parsing. 12157 This has also changed the EVP_PBE_CipherInit() function which now has a 12158 'parameter' argument instead of literal salt and iteration count values 12159 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 12160 [Steve Henson] 12161 12162 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 12163 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 12164 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 12165 KEY" because this clashed with PKCS#8 unencrypted string. Since this 12166 value was just used as a "magic string" and not used directly its 12167 value doesn't matter. 12168 [Steve Henson] 12169 12170 *) Introduce some semblance of const correctness to BN. Shame C doesn't 12171 support mutable. 12172 [Ben Laurie] 12173 12174 *) "linux-sparc64" configuration (ultrapenguin). 12175 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 12176 "linux-sparc" configuration. 12177 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 12178 12179 *) config now generates no-xxx options for missing ciphers. 12180 [Ulf Möller] 12181 12182 *) Support the EBCDIC character set (work in progress). 12183 File ebcdic.c not yet included because it has a different license. 12184 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 12185 12186 *) Support BS2000/OSD-POSIX. 12187 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 12188 12189 *) Make callbacks for key generation use void * instead of char *. 12190 [Ben Laurie] 12191 12192 *) Make S/MIME samples compile (not yet tested). 12193 [Ben Laurie] 12194 12195 *) Additional typesafe stacks. 12196 [Ben Laurie] 12197 12198 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 12199 [Bodo Moeller] 12200 12201 12202 Changes between 0.9.3 and 0.9.3a [29 May 1999] 12203 12204 *) New configuration variant "sco5-gcc". 12205 12206 *) Updated some demos. 12207 [Sean O Riordain, Wade Scholine] 12208 12209 *) Add missing BIO_free at exit of pkcs12 application. 12210 [Wu Zhigang] 12211 12212 *) Fix memory leak in conf.c. 12213 [Steve Henson] 12214 12215 *) Updates for Win32 to assembler version of MD5. 12216 [Steve Henson] 12217 12218 *) Set #! path to perl in apps/der_chop to where we found it 12219 instead of using a fixed path. 12220 [Bodo Moeller] 12221 12222 *) SHA library changes for irix64-mips4-cc. 12223 [Andy Polyakov] 12224 12225 *) Improvements for VMS support. 12226 [Richard Levitte] 12227 12228 12229 Changes between 0.9.2b and 0.9.3 [24 May 1999] 12230 12231 *) Bignum library bug fix. IRIX 6 passes "make test" now! 12232 This also avoids the problems with SC4.2 and unpatched SC5. 12233 [Andy Polyakov <appro@fy.chalmers.se>] 12234 12235 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 12236 These are required because of the typesafe stack would otherwise break 12237 existing code. If old code used a structure member which used to be STACK 12238 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 12239 sk_num or sk_value it would produce an error because the num, data members 12240 are not present in STACK_OF. Now it just produces a warning. sk_set 12241 replaces the old method of assigning a value to sk_value 12242 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 12243 that does this will no longer work (and should use sk_set instead) but 12244 this could be regarded as a "questionable" behaviour anyway. 12245 [Steve Henson] 12246 12247 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 12248 correctly handle encrypted S/MIME data. 12249 [Steve Henson] 12250 12251 *) Change type of various DES function arguments from des_cblock 12252 (which means, in function argument declarations, pointer to char) 12253 to des_cblock * (meaning pointer to array with 8 char elements), 12254 which allows the compiler to do more typechecking; it was like 12255 that back in SSLeay, but with lots of ugly casts. 12256 12257 Introduce new type const_des_cblock. 12258 [Bodo Moeller] 12259 12260 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 12261 problems: find RecipientInfo structure that matches recipient certificate 12262 and initialise the ASN1 structures properly based on passed cipher. 12263 [Steve Henson] 12264 12265 *) Belatedly make the BN tests actually check the results. 12266 [Ben Laurie] 12267 12268 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 12269 to and from BNs: it was completely broken. New compilation option 12270 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 12271 key elements as negative integers. 12272 [Steve Henson] 12273 12274 *) Reorganize and speed up MD5. 12275 [Andy Polyakov <appro@fy.chalmers.se>] 12276 12277 *) VMS support. 12278 [Richard Levitte <richard@levitte.org>] 12279 12280 *) New option -out to asn1parse to allow the parsed structure to be 12281 output to a file. This is most useful when combined with the -strparse 12282 option to examine the output of things like OCTET STRINGS. 12283 [Steve Henson] 12284 12285 *) Make SSL library a little more fool-proof by not requiring any longer 12286 that SSL_set_{accept,connect}_state be called before 12287 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 12288 in many applications because usually everything *appeared* to work as 12289 intended anyway -- now it really works as intended). 12290 [Bodo Moeller] 12291 12292 *) Move openssl.cnf out of lib/. 12293 [Ulf Möller] 12294 12295 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 12296 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 12297 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 12298 [Ralf S. Engelschall] 12299 12300 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 12301 handle PKCS#7 enveloped data properly. 12302 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 12303 12304 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 12305 copying pointers. The cert_st handling is changed by this in 12306 various ways (and thus what used to be known as ctx->default_cert 12307 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 12308 any longer when s->cert does not give us what we need). 12309 ssl_cert_instantiate becomes obsolete by this change. 12310 As soon as we've got the new code right (possibly it already is?), 12311 we have solved a couple of bugs of the earlier code where s->cert 12312 was used as if it could not have been shared with other SSL structures. 12313 12314 Note that using the SSL API in certain dirty ways now will result 12315 in different behaviour than observed with earlier library versions: 12316 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 12317 does not influence s as it used to. 12318 12319 In order to clean up things more thoroughly, inside SSL_SESSION 12320 we don't use CERT any longer, but a new structure SESS_CERT 12321 that holds per-session data (if available); currently, this is 12322 the peer's certificate chain and, for clients, the server's certificate 12323 and temporary key. CERT holds only those values that can have 12324 meaningful defaults in an SSL_CTX. 12325 [Bodo Moeller] 12326 12327 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 12328 from the internal representation. Various PKCS#7 fixes: remove some 12329 evil casts and set the enc_dig_alg field properly based on the signing 12330 key type. 12331 [Steve Henson] 12332 12333 *) Allow PKCS#12 password to be set from the command line or the 12334 environment. Let 'ca' get its config file name from the environment 12335 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 12336 and 'x509'). 12337 [Steve Henson] 12338 12339 *) Allow certificate policies extension to use an IA5STRING for the 12340 organization field. This is contrary to the PKIX definition but 12341 VeriSign uses it and IE5 only recognises this form. Document 'x509' 12342 extension option. 12343 [Steve Henson] 12344 12345 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 12346 without disallowing inline assembler and the like for non-pedantic builds. 12347 [Ben Laurie] 12348 12349 *) Support Borland C++ builder. 12350 [Janez Jere <jj@void.si>, modified by Ulf Möller] 12351 12352 *) Support Mingw32. 12353 [Ulf Möller] 12354 12355 *) SHA-1 cleanups and performance enhancements. 12356 [Andy Polyakov <appro@fy.chalmers.se>] 12357 12358 *) Sparc v8plus assembler for the bignum library. 12359 [Andy Polyakov <appro@fy.chalmers.se>] 12360 12361 *) Accept any -xxx and +xxx compiler options in Configure. 12362 [Ulf Möller] 12363 12364 *) Update HPUX configuration. 12365 [Anonymous] 12366 12367 *) Add missing sk_<type>_unshift() function to safestack.h 12368 [Ralf S. Engelschall] 12369 12370 *) New function SSL_CTX_use_certificate_chain_file that sets the 12371 "extra_cert"s in addition to the certificate. (This makes sense 12372 only for "PEM" format files, as chains as a whole are not 12373 DER-encoded.) 12374 [Bodo Moeller] 12375 12376 *) Support verify_depth from the SSL API. 12377 x509_vfy.c had what can be considered an off-by-one-error: 12378 Its depth (which was not part of the external interface) 12379 was actually counting the number of certificates in a chain; 12380 now it really counts the depth. 12381 [Bodo Moeller] 12382 12383 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 12384 instead of X509err, which often resulted in confusing error 12385 messages since the error codes are not globally unique 12386 (e.g. an alleged error in ssl3_accept when a certificate 12387 didn't match the private key). 12388 12389 *) New function SSL_CTX_set_session_id_context that allows to set a default 12390 value (so that you don't need SSL_set_session_id_context for each 12391 connection using the SSL_CTX). 12392 [Bodo Moeller] 12393 12394 *) OAEP decoding bug fix. 12395 [Ulf Möller] 12396 12397 *) Support INSTALL_PREFIX for package builders, as proposed by 12398 David Harris. 12399 [Bodo Moeller] 12400 12401 *) New Configure options "threads" and "no-threads". For systems 12402 where the proper compiler options are known (currently Solaris 12403 and Linux), "threads" is the default. 12404 [Bodo Moeller] 12405 12406 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 12407 [Bodo Moeller] 12408 12409 *) Install various scripts to $(OPENSSLDIR)/misc, not to 12410 $(INSTALLTOP)/bin -- they shouldn't clutter directories 12411 such as /usr/local/bin. 12412 [Bodo Moeller] 12413 12414 *) "make linux-shared" to build shared libraries. 12415 [Niels Poppe <niels@netbox.org>] 12416 12417 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 12418 [Ulf Möller] 12419 12420 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 12421 extension adding in x509 utility. 12422 [Steve Henson] 12423 12424 *) Remove NOPROTO sections and error code comments. 12425 [Ulf Möller] 12426 12427 *) Partial rewrite of the DEF file generator to now parse the ANSI 12428 prototypes. 12429 [Steve Henson] 12430 12431 *) New Configure options --prefix=DIR and --openssldir=DIR. 12432 [Ulf Möller] 12433 12434 *) Complete rewrite of the error code script(s). It is all now handled 12435 by one script at the top level which handles error code gathering, 12436 header rewriting and C source file generation. It should be much better 12437 than the old method: it now uses a modified version of Ulf's parser to 12438 read the ANSI prototypes in all header files (thus the old K&R definitions 12439 aren't needed for error creation any more) and do a better job of 12440 translating function codes into names. The old 'ASN1 error code embedded 12441 in a comment' is no longer necessary and it doesn't use .err files which 12442 have now been deleted. Also the error code call doesn't have to appear all 12443 on one line (which resulted in some large lines...). 12444 [Steve Henson] 12445 12446 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 12447 [Bodo Moeller] 12448 12449 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 12450 0 (which usually indicates a closed connection), but continue reading. 12451 [Bodo Moeller] 12452 12453 *) Fix some race conditions. 12454 [Bodo Moeller] 12455 12456 *) Add support for CRL distribution points extension. Add Certificate 12457 Policies and CRL distribution points documentation. 12458 [Steve Henson] 12459 12460 *) Move the autogenerated header file parts to crypto/opensslconf.h. 12461 [Ulf Möller] 12462 12463 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 12464 8 of keying material. Merlin has also confirmed interop with this fix 12465 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 12466 [Merlin Hughes <merlin@baltimore.ie>] 12467 12468 *) Fix lots of warnings. 12469 [Richard Levitte <levitte@stacken.kth.se>] 12470 12471 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 12472 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 12473 [Richard Levitte <levitte@stacken.kth.se>] 12474 12475 *) Fix problems with sizeof(long) == 8. 12476 [Andy Polyakov <appro@fy.chalmers.se>] 12477 12478 *) Change functions to ANSI C. 12479 [Ulf Möller] 12480 12481 *) Fix typos in error codes. 12482 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller] 12483 12484 *) Remove defunct assembler files from Configure. 12485 [Ulf Möller] 12486 12487 *) SPARC v8 assembler BIGNUM implementation. 12488 [Andy Polyakov <appro@fy.chalmers.se>] 12489 12490 *) Support for Certificate Policies extension: both print and set. 12491 Various additions to support the r2i method this uses. 12492 [Steve Henson] 12493 12494 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 12495 return a const string when you are expecting an allocated buffer. 12496 [Ben Laurie] 12497 12498 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 12499 types DirectoryString and DisplayText. 12500 [Steve Henson] 12501 12502 *) Add code to allow r2i extensions to access the configuration database, 12503 add an LHASH database driver and add several ctx helper functions. 12504 [Steve Henson] 12505 12506 *) Fix an evil bug in bn_expand2() which caused various BN functions to 12507 fail when they extended the size of a BIGNUM. 12508 [Steve Henson] 12509 12510 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 12511 support typesafe stack. 12512 [Steve Henson] 12513 12514 *) Fix typo in SSL_[gs]et_options(). 12515 [Nils Frostberg <nils@medcom.se>] 12516 12517 *) Delete various functions and files that belonged to the (now obsolete) 12518 old X509V3 handling code. 12519 [Steve Henson] 12520 12521 *) New Configure option "rsaref". 12522 [Ulf Möller] 12523 12524 *) Don't auto-generate pem.h. 12525 [Bodo Moeller] 12526 12527 *) Introduce type-safe ASN.1 SETs. 12528 [Ben Laurie] 12529 12530 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 12531 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 12532 12533 *) Introduce type-safe STACKs. This will almost certainly break lots of code 12534 that links with OpenSSL (well at least cause lots of warnings), but fear 12535 not: the conversion is trivial, and it eliminates loads of evil casts. A 12536 few STACKed things have been converted already. Feel free to convert more. 12537 In the fullness of time, I'll do away with the STACK type altogether. 12538 [Ben Laurie] 12539 12540 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 12541 specified in <certfile> by updating the entry in the index.txt file. 12542 This way one no longer has to edit the index.txt file manually for 12543 revoking a certificate. The -revoke option does the gory details now. 12544 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 12545 12546 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 12547 `-text' option at all and this way the `-noout -text' combination was 12548 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 12549 [Ralf S. Engelschall] 12550 12551 *) Make sure a corresponding plain text error message exists for the 12552 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 12553 verify callback function determined that a certificate was revoked. 12554 [Ralf S. Engelschall] 12555 12556 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 12557 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 12558 all available ciphers including rc5, which was forgotten until now. 12559 In order to let the testing shell script know which algorithms 12560 are available, a new (up to now undocumented) command 12561 "openssl list-cipher-commands" is used. 12562 [Bodo Moeller] 12563 12564 *) Bugfix: s_client occasionally would sleep in select() when 12565 it should have checked SSL_pending() first. 12566 [Bodo Moeller] 12567 12568 *) New functions DSA_do_sign and DSA_do_verify to provide access to 12569 the raw DSA values prior to ASN.1 encoding. 12570 [Ulf Möller] 12571 12572 *) Tweaks to Configure 12573 [Niels Poppe <niels@netbox.org>] 12574 12575 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 12576 yet... 12577 [Steve Henson] 12578 12579 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 12580 [Ulf Möller] 12581 12582 *) New config option to avoid instructions that are illegal on the 80386. 12583 The default code is faster, but requires at least a 486. 12584 [Ulf Möller] 12585 12586 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 12587 SSL2_SERVER_VERSION (not used at all) macros, which are now the 12588 same as SSL2_VERSION anyway. 12589 [Bodo Moeller] 12590 12591 *) New "-showcerts" option for s_client. 12592 [Bodo Moeller] 12593 12594 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 12595 application. Various cleanups and fixes. 12596 [Steve Henson] 12597 12598 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 12599 modify error routines to work internally. Add error codes and PBE init 12600 to library startup routines. 12601 [Steve Henson] 12602 12603 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 12604 packing functions to asn1 and evp. Changed function names and error 12605 codes along the way. 12606 [Steve Henson] 12607 12608 *) PKCS12 integration: and so it begins... First of several patches to 12609 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 12610 objects to objects.h 12611 [Steve Henson] 12612 12613 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 12614 and display support for Thawte strong extranet extension. 12615 [Steve Henson] 12616 12617 *) Add LinuxPPC support. 12618 [Jeff Dubrule <igor@pobox.org>] 12619 12620 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 12621 bn_div_words in alpha.s. 12622 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 12623 12624 *) Make sure the RSA OAEP test is skipped under -DRSAref because 12625 OAEP isn't supported when OpenSSL is built with RSAref. 12626 [Ulf Moeller <ulf@fitug.de>] 12627 12628 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 12629 so they no longer are missing under -DNOPROTO. 12630 [Soren S. Jorvang <soren@t.dk>] 12631 12632 12633 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 12634 12635 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 12636 doesn't work when the session is reused. Coming soon! 12637 [Ben Laurie] 12638 12639 *) Fix a security hole, that allows sessions to be reused in the wrong 12640 context thus bypassing client cert protection! All software that uses 12641 client certs and session caches in multiple contexts NEEDS PATCHING to 12642 allow session reuse! A fuller solution is in the works. 12643 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 12644 12645 *) Some more source tree cleanups (removed obsolete files 12646 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 12647 permission on "config" script to be executable) and a fix for the INSTALL 12648 document. 12649 [Ulf Moeller <ulf@fitug.de>] 12650 12651 *) Remove some legacy and erroneous uses of malloc, free instead of 12652 Malloc, Free. 12653 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 12654 12655 *) Make rsa_oaep_test return non-zero on error. 12656 [Ulf Moeller <ulf@fitug.de>] 12657 12658 *) Add support for native Solaris shared libraries. Configure 12659 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 12660 if someone would make that last step automatic. 12661 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 12662 12663 *) ctx_size was not built with the right compiler during "make links". Fixed. 12664 [Ben Laurie] 12665 12666 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 12667 except NULL ciphers". This means the default cipher list will no longer 12668 enable NULL ciphers. They need to be specifically enabled e.g. with 12669 the string "DEFAULT:eNULL". 12670 [Steve Henson] 12671 12672 *) Fix to RSA private encryption routines: if p < q then it would 12673 occasionally produce an invalid result. This will only happen with 12674 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 12675 [Steve Henson] 12676 12677 *) Be less restrictive and allow also `perl util/perlpath.pl 12678 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 12679 because this way one can also use an interpreter named `perl5' (which is 12680 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 12681 installed as `perl'). 12682 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 12683 12684 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 12685 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 12686 12687 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 12688 advapi32.lib to Win32 build and change the pem test comparison 12689 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 12690 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 12691 and crypto/des/ede_cbcm_enc.c. 12692 [Steve Henson] 12693 12694 *) DES quad checksum was broken on big-endian architectures. Fixed. 12695 [Ben Laurie] 12696 12697 *) Comment out two functions in bio.h that aren't implemented. Fix up the 12698 Win32 test batch file so it (might) work again. The Win32 test batch file 12699 is horrible: I feel ill.... 12700 [Steve Henson] 12701 12702 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 12703 in e_os.h. Audit of header files to check ANSI and non ANSI 12704 sections: 10 functions were absent from non ANSI section and not exported 12705 from Windows DLLs. Fixed up libeay.num for new functions. 12706 [Steve Henson] 12707 12708 *) Make `openssl version' output lines consistent. 12709 [Ralf S. Engelschall] 12710 12711 *) Fix Win32 symbol export lists for BIO functions: Added 12712 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 12713 to ms/libeay{16,32}.def. 12714 [Ralf S. Engelschall] 12715 12716 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 12717 fine under Unix and passes some trivial tests I've now added. But the 12718 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 12719 added to make sure no one expects that this stuff really works in the 12720 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 12721 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 12722 openssl_bio.xs. 12723 [Ralf S. Engelschall] 12724 12725 *) Fix the generation of two part addresses in perl. 12726 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 12727 12728 *) Add config entry for Linux on MIPS. 12729 [John Tobey <jtobey@channel1.com>] 12730 12731 *) Make links whenever Configure is run, unless we are on Windoze. 12732 [Ben Laurie] 12733 12734 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 12735 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 12736 in CRLs. 12737 [Steve Henson] 12738 12739 *) Add a useful kludge to allow package maintainers to specify compiler and 12740 other platforms details on the command line without having to patch the 12741 Configure script every time: One now can use ``perl Configure 12742 <id>:<details>'', i.e. platform ids are allowed to have details appended 12743 to them (separated by colons). This is treated as there would be a static 12744 pre-configured entry in Configure's %table under key <id> with value 12745 <details> and ``perl Configure <id>'' is called. So, when you want to 12746 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 12747 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 12748 now, which overrides the FreeBSD-elf entry on-the-fly. 12749 [Ralf S. Engelschall] 12750 12751 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 12752 [Ben Laurie] 12753 12754 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 12755 on the `perl Configure ...' command line. This way one can compile 12756 OpenSSL libraries with Position Independent Code (PIC) which is needed 12757 for linking it into DSOs. 12758 [Ralf S. Engelschall] 12759 12760 *) Remarkably, export ciphers were totally broken and no-one had noticed! 12761 Fixed. 12762 [Ben Laurie] 12763 12764 *) Cleaned up the LICENSE document: The official contact for any license 12765 questions now is the OpenSSL core team under openssl-core@openssl.org. 12766 And add a paragraph about the dual-license situation to make sure people 12767 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 12768 to the OpenSSL toolkit. 12769 [Ralf S. Engelschall] 12770 12771 *) General source tree makefile cleanups: Made `making xxx in yyy...' 12772 display consistent in the source tree and replaced `/bin/rm' by `rm'. 12773 Additionally cleaned up the `make links' target: Remove unnecessary 12774 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 12775 to speed processing and no longer clutter the display with confusing 12776 stuff. Instead only the actually done links are displayed. 12777 [Ralf S. Engelschall] 12778 12779 *) Permit null encryption ciphersuites, used for authentication only. It used 12780 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 12781 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 12782 encryption. 12783 [Ben Laurie] 12784 12785 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 12786 signed attributes when verifying signatures (this would break them), 12787 the detached data encoding was wrong and public keys obtained using 12788 X509_get_pubkey() weren't freed. 12789 [Steve Henson] 12790 12791 *) Add text documentation for the BUFFER functions. Also added a work around 12792 to a Win95 console bug. This was triggered by the password read stuff: the 12793 last character typed gets carried over to the next fread(). If you were 12794 generating a new cert request using 'req' for example then the last 12795 character of the passphrase would be CR which would then enter the first 12796 field as blank. 12797 [Steve Henson] 12798 12799 *) Added the new `Includes OpenSSL Cryptography Software' button as 12800 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 12801 button and can be used by applications based on OpenSSL to show the 12802 relationship to the OpenSSL project. 12803 [Ralf S. Engelschall] 12804 12805 *) Remove confusing variables in function signatures in files 12806 ssl/ssl_lib.c and ssl/ssl.h. 12807 [Lennart Bong <lob@kulthea.stacken.kth.se>] 12808 12809 *) Don't install bss_file.c under PREFIX/include/ 12810 [Lennart Bong <lob@kulthea.stacken.kth.se>] 12811 12812 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 12813 functions that return function pointers and has support for NT specific 12814 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 12815 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 12816 unsigned to signed types: this was killing the Win32 compile. 12817 [Steve Henson] 12818 12819 *) Add new certificate file to stack functions, 12820 SSL_add_dir_cert_subjects_to_stack() and 12821 SSL_add_file_cert_subjects_to_stack(). These largely supplant 12822 SSL_load_client_CA_file(), and can be used to add multiple certs easily 12823 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 12824 This means that Apache-SSL and similar packages don't have to mess around 12825 to add as many CAs as they want to the preferred list. 12826 [Ben Laurie] 12827 12828 *) Experiment with doxygen documentation. Currently only partially applied to 12829 ssl/ssl_lib.c. 12830 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 12831 openssl.doxy as the configuration file. 12832 [Ben Laurie] 12833 12834 *) Get rid of remaining C++-style comments which strict C compilers hate. 12835 [Ralf S. Engelschall, pointed out by Carlos Amengual] 12836 12837 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 12838 compiled in by default: it has problems with large keys. 12839 [Steve Henson] 12840 12841 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 12842 DH private keys and/or callback functions which directly correspond to 12843 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 12844 is needed for applications which have to configure certificates on a 12845 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 12846 (e.g. s_server). 12847 For the RSA certificate situation is makes no difference, but 12848 for the DSA certificate situation this fixes the "no shared cipher" 12849 problem where the OpenSSL cipher selection procedure failed because the 12850 temporary keys were not overtaken from the context and the API provided 12851 no way to reconfigure them. 12852 The new functions now let applications reconfigure the stuff and they 12853 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 12854 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 12855 non-public-API function ssl_cert_instantiate() is used as a helper 12856 function and also to reduce code redundancy inside ssl_rsa.c. 12857 [Ralf S. Engelschall] 12858 12859 *) Move s_server -dcert and -dkey options out of the undocumented feature 12860 area because they are useful for the DSA situation and should be 12861 recognized by the users. 12862 [Ralf S. Engelschall] 12863 12864 *) Fix the cipher decision scheme for export ciphers: the export bits are 12865 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 12866 SSL_EXP_MASK. So, the original variable has to be used instead of the 12867 already masked variable. 12868 [Richard Levitte <levitte@stacken.kth.se>] 12869 12870 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 12871 [Richard Levitte <levitte@stacken.kth.se>] 12872 12873 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 12874 from `int' to `unsigned int' because it's a length and initialized by 12875 EVP_DigestFinal() which expects an `unsigned int *'. 12876 [Richard Levitte <levitte@stacken.kth.se>] 12877 12878 *) Don't hard-code path to Perl interpreter on shebang line of Configure 12879 script. Instead use the usual Shell->Perl transition trick. 12880 [Ralf S. Engelschall] 12881 12882 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 12883 (in addition to RSA certificates) to match the behaviour of `openssl dsa 12884 -noout -modulus' as it's already the case for `openssl rsa -noout 12885 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 12886 currently the public key is printed (a decision which was already done by 12887 `openssl dsa -modulus' in the past) which serves a similar purpose. 12888 Additionally the NO_RSA no longer completely removes the whole -modulus 12889 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 12890 now, too. 12891 [Ralf S. Engelschall] 12892 12893 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 12894 BIO. See the source (crypto/evp/bio_ok.c) for more info. 12895 [Arne Ansper <arne@ats.cyber.ee>] 12896 12897 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 12898 to be added. Now both 'req' and 'ca' can use new objects defined in the 12899 config file. 12900 [Steve Henson] 12901 12902 *) Add cool BIO that does syslog (or event log on NT). 12903 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 12904 12905 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 12906 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 12907 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 12908 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 12909 [Ben Laurie] 12910 12911 *) Add preliminary config info for new extension code. 12912 [Steve Henson] 12913 12914 *) Make RSA_NO_PADDING really use no padding. 12915 [Ulf Moeller <ulf@fitug.de>] 12916 12917 *) Generate errors when private/public key check is done. 12918 [Ben Laurie] 12919 12920 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 12921 for some CRL extensions and new objects added. 12922 [Steve Henson] 12923 12924 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 12925 key usage extension and fuller support for authority key id. 12926 [Steve Henson] 12927 12928 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 12929 padding method for RSA, which is recommended for new applications in PKCS 12930 #1 v2.0 (RFC 2437, October 1998). 12931 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 12932 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 12933 against Bleichbacher's attack on RSA. 12934 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 12935 Ben Laurie] 12936 12937 *) Updates to the new SSL compression code 12938 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 12939 12940 *) Fix so that the version number in the master secret, when passed 12941 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 12942 (because the server will not accept higher), that the version number 12943 is 0x03,0x01, not 0x03,0x00 12944 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 12945 12946 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 12947 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 12948 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 12949 [Steve Henson] 12950 12951 *) Support for RAW extensions where an arbitrary extension can be 12952 created by including its DER encoding. See apps/openssl.cnf for 12953 an example. 12954 [Steve Henson] 12955 12956 *) Make sure latest Perl versions don't interpret some generated C array 12957 code as Perl array code in the crypto/err/err_genc.pl script. 12958 [Lars Weber <3weber@informatik.uni-hamburg.de>] 12959 12960 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 12961 not many people have the assembler. Various Win32 compilation fixes and 12962 update to the INSTALL.W32 file with (hopefully) more accurate Win32 12963 build instructions. 12964 [Steve Henson] 12965 12966 *) Modify configure script 'Configure' to automatically create crypto/date.h 12967 file under Win32 and also build pem.h from pem.org. New script 12968 util/mkfiles.pl to create the MINFO file on environments that can't do a 12969 'make files': perl util/mkfiles.pl >MINFO should work. 12970 [Steve Henson] 12971 12972 *) Major rework of DES function declarations, in the pursuit of correctness 12973 and purity. As a result, many evil casts evaporated, and some weirdness, 12974 too. You may find this causes warnings in your code. Zapping your evil 12975 casts will probably fix them. Mostly. 12976 [Ben Laurie] 12977 12978 *) Fix for a typo in asn1.h. Bug fix to object creation script 12979 obj_dat.pl. It considered a zero in an object definition to mean 12980 "end of object": none of the objects in objects.h have any zeros 12981 so it wasn't spotted. 12982 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 12983 12984 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 12985 Masking (CBCM). In the absence of test vectors, the best I have been able 12986 to do is check that the decrypt undoes the encrypt, so far. Send me test 12987 vectors if you have them. 12988 [Ben Laurie] 12989 12990 *) Correct calculation of key length for export ciphers (too much space was 12991 allocated for null ciphers). This has not been tested! 12992 [Ben Laurie] 12993 12994 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 12995 message is now correct (it understands "crypto" and "ssl" on its 12996 command line). There is also now an "update" option. This will update 12997 the util/ssleay.num and util/libeay.num files with any new functions. 12998 If you do a: 12999 perl util/mkdef.pl crypto ssl update 13000 it will update them. 13001 [Steve Henson] 13002 13003 *) Overhauled the Perl interface (perl/*): 13004 - ported BN stuff to OpenSSL's different BN library 13005 - made the perl/ source tree CVS-aware 13006 - renamed the package from SSLeay to OpenSSL (the files still contain 13007 their history because I've copied them in the repository) 13008 - removed obsolete files (the test scripts will be replaced 13009 by better Test::Harness variants in the future) 13010 [Ralf S. Engelschall] 13011 13012 *) First cut for a very conservative source tree cleanup: 13013 1. merge various obsolete readme texts into doc/ssleay.txt 13014 where we collect the old documents and readme texts. 13015 2. remove the first part of files where I'm already sure that we no 13016 longer need them because of three reasons: either they are just temporary 13017 files which were left by Eric or they are preserved original files where 13018 I've verified that the diff is also available in the CVS via "cvs diff 13019 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 13020 the crypto/md/ stuff). 13021 [Ralf S. Engelschall] 13022 13023 *) More extension code. Incomplete support for subject and issuer alt 13024 name, issuer and authority key id. Change the i2v function parameters 13025 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 13026 what that's for :-) Fix to ASN1 macro which messed up 13027 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 13028 [Steve Henson] 13029 13030 *) Preliminary support for ENUMERATED type. This is largely copied from the 13031 INTEGER code. 13032 [Steve Henson] 13033 13034 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 13035 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 13036 13037 *) Make sure `make rehash' target really finds the `openssl' program. 13038 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 13039 13040 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 13041 like to hear about it if this slows down other processors. 13042 [Ben Laurie] 13043 13044 *) Add CygWin32 platform information to Configure script. 13045 [Alan Batie <batie@aahz.jf.intel.com>] 13046 13047 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 13048 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 13049 13050 *) New program nseq to manipulate netscape certificate sequences 13051 [Steve Henson] 13052 13053 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 13054 few typos. 13055 [Steve Henson] 13056 13057 *) Fixes to BN code. Previously the default was to define BN_RECURSION 13058 but the BN code had some problems that would cause failures when 13059 doing certificate verification and some other functions. 13060 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 13061 13062 *) Add ASN1 and PEM code to support netscape certificate sequences. 13063 [Steve Henson] 13064 13065 *) Add ASN1 and PEM code to support netscape certificate sequences. 13066 [Steve Henson] 13067 13068 *) Add several PKIX and private extended key usage OIDs. 13069 [Steve Henson] 13070 13071 *) Modify the 'ca' program to handle the new extension code. Modify 13072 openssl.cnf for new extension format, add comments. 13073 [Steve Henson] 13074 13075 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 13076 and add a sample to openssl.cnf so req -x509 now adds appropriate 13077 CA extensions. 13078 [Steve Henson] 13079 13080 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 13081 error code, add initial support to X509_print() and x509 application. 13082 [Steve Henson] 13083 13084 *) Takes a deep breath and start adding X509 V3 extension support code. Add 13085 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 13086 stuff is currently isolated and isn't even compiled yet. 13087 [Steve Henson] 13088 13089 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 13090 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 13091 Removed the versions check from X509 routines when loading extensions: 13092 this allows certain broken certificates that don't set the version 13093 properly to be processed. 13094 [Steve Henson] 13095 13096 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 13097 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 13098 can still be regenerated with "make depend". 13099 [Ben Laurie] 13100 13101 *) Spelling mistake in C version of CAST-128. 13102 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 13103 13104 *) Changes to the error generation code. The perl script err-code.pl 13105 now reads in the old error codes and retains the old numbers, only 13106 adding new ones if necessary. It also only changes the .err files if new 13107 codes are added. The makefiles have been modified to only insert errors 13108 when needed (to avoid needlessly modifying header files). This is done 13109 by only inserting errors if the .err file is newer than the auto generated 13110 C file. To rebuild all the error codes from scratch (the old behaviour) 13111 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 13112 or delete all the .err files. 13113 [Steve Henson] 13114 13115 *) CAST-128 was incorrectly implemented for short keys. The C version has 13116 been fixed, but is untested. The assembler versions are also fixed, but 13117 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 13118 to regenerate it if needed. 13119 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 13120 Hagino <itojun@kame.net>] 13121 13122 *) File was opened incorrectly in randfile.c. 13123 [Ulf Möller <ulf@fitug.de>] 13124 13125 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 13126 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 13127 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 13128 al: it's just almost always a UTCTime. Note this patch adds new error 13129 codes so do a "make errors" if there are problems. 13130 [Steve Henson] 13131 13132 *) Correct Linux 1 recognition in config. 13133 [Ulf Möller <ulf@fitug.de>] 13134 13135 *) Remove pointless MD5 hash when using DSA keys in ca. 13136 [Anonymous <nobody@replay.com>] 13137 13138 *) Generate an error if given an empty string as a cert directory. Also 13139 generate an error if handed NULL (previously returned 0 to indicate an 13140 error, but didn't set one). 13141 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 13142 13143 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 13144 [Ben Laurie] 13145 13146 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 13147 parameters. This was causing a warning which killed off the Win32 compile. 13148 [Steve Henson] 13149 13150 *) Remove C++ style comments from crypto/bn/bn_local.h. 13151 [Neil Costigan <neil.costigan@celocom.com>] 13152 13153 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 13154 based on a text string, looking up short and long names and finally 13155 "dot" format. The "dot" format stuff didn't work. Added new function 13156 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 13157 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 13158 OID is not part of the table. 13159 [Steve Henson] 13160 13161 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 13162 X509_LOOKUP_by_alias(). 13163 [Ben Laurie] 13164 13165 *) Sort openssl functions by name. 13166 [Ben Laurie] 13167 13168 *) Get the gendsa program working (hopefully) and add it to app list. Remove 13169 encryption from sample DSA keys (in case anyone is interested the password 13170 was "1234"). 13171 [Steve Henson] 13172 13173 *) Make _all_ *_free functions accept a NULL pointer. 13174 [Frans Heymans <fheymans@isaserver.be>] 13175 13176 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 13177 NULL pointers. 13178 [Anonymous <nobody@replay.com>] 13179 13180 *) s_server should send the CAfile as acceptable CAs, not its own cert. 13181 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 13182 13183 *) Don't blow it for numeric -newkey arguments to apps/req. 13184 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 13185 13186 *) Temp key "for export" tests were wrong in s3_srvr.c. 13187 [Anonymous <nobody@replay.com>] 13188 13189 *) Add prototype for temp key callback functions 13190 SSL_CTX_set_tmp_{rsa,dh}_callback(). 13191 [Ben Laurie] 13192 13193 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 13194 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 13195 [Steve Henson] 13196 13197 *) X509_name_add_entry() freed the wrong thing after an error. 13198 [Arne Ansper <arne@ats.cyber.ee>] 13199 13200 *) rsa_eay.c would attempt to free a NULL context. 13201 [Arne Ansper <arne@ats.cyber.ee>] 13202 13203 *) BIO_s_socket() had a broken should_retry() on Windoze. 13204 [Arne Ansper <arne@ats.cyber.ee>] 13205 13206 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 13207 [Arne Ansper <arne@ats.cyber.ee>] 13208 13209 *) Make sure the already existing X509_STORE->depth variable is initialized 13210 in X509_STORE_new(), but document the fact that this variable is still 13211 unused in the certificate verification process. 13212 [Ralf S. Engelschall] 13213 13214 *) Fix the various library and apps files to free up pkeys obtained from 13215 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 13216 [Steve Henson] 13217 13218 *) Fix reference counting in X509_PUBKEY_get(). This makes 13219 demos/maurice/example2.c work, amongst others, probably. 13220 [Steve Henson and Ben Laurie] 13221 13222 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 13223 `openssl' and second, the shortcut symlinks for the `openssl <command>' 13224 are no longer created. This way we have a single and consistent command 13225 line interface `openssl <command>', similar to `cvs <command>'. 13226 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 13227 13228 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 13229 BIT STRING wrapper always have zero unused bits. 13230 [Steve Henson] 13231 13232 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 13233 [Steve Henson] 13234 13235 *) Make the top-level INSTALL documentation easier to understand. 13236 [Paul Sutton] 13237 13238 *) Makefiles updated to exit if an error occurs in a sub-directory 13239 make (including if user presses ^C) [Paul Sutton] 13240 13241 *) Make Montgomery context stuff explicit in RSA data structure. 13242 [Ben Laurie] 13243 13244 *) Fix build order of pem and err to allow for generated pem.h. 13245 [Ben Laurie] 13246 13247 *) Fix renumbering bug in X509_NAME_delete_entry(). 13248 [Ben Laurie] 13249 13250 *) Enhanced the err-ins.pl script so it makes the error library number 13251 global and can add a library name. This is needed for external ASN1 and 13252 other error libraries. 13253 [Steve Henson] 13254 13255 *) Fixed sk_insert which never worked properly. 13256 [Steve Henson] 13257 13258 *) Fix ASN1 macros so they can handle indefinite length constructed 13259 EXPLICIT tags. Some non standard certificates use these: they can now 13260 be read in. 13261 [Steve Henson] 13262 13263 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 13264 into a single doc/ssleay.txt bundle. This way the information is still 13265 preserved but no longer messes up this directory. Now it's new room for 13266 the new set of documentation files. 13267 [Ralf S. Engelschall] 13268 13269 *) SETs were incorrectly DER encoded. This was a major pain, because they 13270 shared code with SEQUENCEs, which aren't coded the same. This means that 13271 almost everything to do with SETs or SEQUENCEs has either changed name or 13272 number of arguments. 13273 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 13274 13275 *) Fix test data to work with the above. 13276 [Ben Laurie] 13277 13278 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 13279 was already fixed by Eric for 0.9.1 it seems. 13280 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>] 13281 13282 *) Autodetect FreeBSD3. 13283 [Ben Laurie] 13284 13285 *) Fix various bugs in Configure. This affects the following platforms: 13286 nextstep 13287 ncr-scde 13288 unixware-2.0 13289 unixware-2.0-pentium 13290 sco5-cc. 13291 [Ben Laurie] 13292 13293 *) Eliminate generated files from CVS. Reorder tests to regenerate files 13294 before they are needed. 13295 [Ben Laurie] 13296 13297 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 13298 [Ben Laurie] 13299 13300 13301 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 13302 13303 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 13304 changed SSLeay to OpenSSL in version strings. 13305 [Ralf S. Engelschall] 13306 13307 *) Some fixups to the top-level documents. 13308 [Paul Sutton] 13309 13310 *) Fixed the nasty bug where rsaref.h was not found under compile-time 13311 because the symlink to include/ was missing. 13312 [Ralf S. Engelschall] 13313 13314 *) Incorporated the popular no-RSA/DSA-only patches 13315 which allow to compile a RSA-free SSLeay. 13316 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 13317 13318 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 13319 when "ssleay" is still not found. 13320 [Ralf S. Engelschall] 13321 13322 *) Added more platforms to Configure: Cray T3E, HPUX 11, 13323 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 13324 13325 *) Updated the README file. 13326 [Ralf S. Engelschall] 13327 13328 *) Added various .cvsignore files in the CVS repository subdirs 13329 to make a "cvs update" really silent. 13330 [Ralf S. Engelschall] 13331 13332 *) Recompiled the error-definition header files and added 13333 missing symbols to the Win32 linker tables. 13334 [Ralf S. Engelschall] 13335 13336 *) Cleaned up the top-level documents; 13337 o new files: CHANGES and LICENSE 13338 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 13339 o merged COPYRIGHT into LICENSE 13340 o removed obsolete TODO file 13341 o renamed MICROSOFT to INSTALL.W32 13342 [Ralf S. Engelschall] 13343 13344 *) Removed dummy files from the 0.9.1b source tree: 13345 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 13346 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 13347 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 13348 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 13349 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 13350 [Ralf S. Engelschall] 13351 13352 *) Added various platform portability fixes. 13353 [Mark J. Cox] 13354 13355 *) The Genesis of the OpenSSL rpject: 13356 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 13357 Young and Tim J. Hudson created while they were working for C2Net until 13358 summer 1998. 13359 [The OpenSSL Project] 13360 13361 13362 Changes between 0.9.0b and 0.9.1b [not released] 13363 13364 *) Updated a few CA certificates under certs/ 13365 [Eric A. Young] 13366 13367 *) Changed some BIGNUM api stuff. 13368 [Eric A. Young] 13369 13370 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 13371 DGUX x86, Linux Alpha, etc. 13372 [Eric A. Young] 13373 13374 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 13375 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 13376 available). 13377 [Eric A. Young] 13378 13379 *) Add -strparse option to asn1pars program which parses nested 13380 binary structures 13381 [Dr Stephen Henson <shenson@bigfoot.com>] 13382 13383 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 13384 [Eric A. Young] 13385 13386 *) DSA fix for "ca" program. 13387 [Eric A. Young] 13388 13389 *) Added "-genkey" option to "dsaparam" program. 13390 [Eric A. Young] 13391 13392 *) Added RIPE MD160 (rmd160) message digest. 13393 [Eric A. Young] 13394 13395 *) Added -a (all) option to "ssleay version" command. 13396 [Eric A. Young] 13397 13398 *) Added PLATFORM define which is the id given to Configure. 13399 [Eric A. Young] 13400 13401 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 13402 [Eric A. Young] 13403 13404 *) Extended the ASN.1 parser routines. 13405 [Eric A. Young] 13406 13407 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 13408 [Eric A. Young] 13409 13410 *) Added a BN_CTX to the BN library. 13411 [Eric A. Young] 13412 13413 *) Fixed the weak key values in DES library 13414 [Eric A. Young] 13415 13416 *) Changed API in EVP library for cipher aliases. 13417 [Eric A. Young] 13418 13419 *) Added support for RC2/64bit cipher. 13420 [Eric A. Young] 13421 13422 *) Converted the lhash library to the crypto/mem.c functions. 13423 [Eric A. Young] 13424 13425 *) Added more recognized ASN.1 object ids. 13426 [Eric A. Young] 13427 13428 *) Added more RSA padding checks for SSL/TLS. 13429 [Eric A. Young] 13430 13431 *) Added BIO proxy/filter functionality. 13432 [Eric A. Young] 13433 13434 *) Added extra_certs to SSL_CTX which can be used 13435 send extra CA certificates to the client in the CA cert chain sending 13436 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 13437 [Eric A. Young] 13438 13439 *) Now Fortezza is denied in the authentication phase because 13440 this is key exchange mechanism is not supported by SSLeay at all. 13441 [Eric A. Young] 13442 13443 *) Additional PKCS1 checks. 13444 [Eric A. Young] 13445 13446 *) Support the string "TLSv1" for all TLS v1 ciphers. 13447 [Eric A. Young] 13448 13449 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 13450 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 13451 [Eric A. Young] 13452 13453 *) Fixed a few memory leaks. 13454 [Eric A. Young] 13455 13456 *) Fixed various code and comment typos. 13457 [Eric A. Young] 13458 13459 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 13460 bytes sent in the client random. 13461 [Edward Bishop <ebishop@spyglass.com>] 13462