1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.2j and 1.0.2k [xx XXX xxxx] 6 7 *) Montgomery multiplication may produce incorrect results 8 9 There is a carry propagating bug in the Broadwell-specific Montgomery 10 multiplication procedure that handles input lengths divisible by, but 11 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 12 and DH private keys are impossible. This is because the subroutine in 13 question is not used in operations with the private key itself and an input 14 of the attacker's direct choice. Otherwise the bug can manifest itself as 15 transient authentication and key negotiation failures or reproducible 16 erroneous outcome of public-key operations with specially crafted input. 17 Among EC algorithms only Brainpool P-512 curves are affected and one 18 presumably can attack ECDH key negotiation. Impact was not analyzed in 19 detail, because pre-requisites for attack are considered unlikely. Namely 20 multiple clients have to choose the curve in question and the server has to 21 share the private key among them, neither of which is default behaviour. 22 Even then only clients that chose the curve will be affected. 23 24 This issue was publicly reported as transient failures and was not 25 initially recognized as a security issue. Thanks to Richard Morgan for 26 providing reproducible case. 27 (CVE-2016-7055) 28 [Andy Polyakov] 29 30 *) OpenSSL now fails if it receives an unrecognised record type in TLS1.0 31 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 32 prevent issues where no progress is being made and the peer continually 33 sends unrecognised record types, using up resources processing them. 34 [Matt Caswell] 35 36 Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 37 38 *) Missing CRL sanity check 39 40 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 41 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 42 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 43 44 This issue only affects the OpenSSL 1.0.2i 45 (CVE-2016-7052) 46 [Matt Caswell] 47 48 Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 49 50 *) OCSP Status Request extension unbounded memory growth 51 52 A malicious client can send an excessively large OCSP Status Request 53 extension. If that client continually requests renegotiation, sending a 54 large OCSP Status Request extension each time, then there will be unbounded 55 memory growth on the server. This will eventually lead to a Denial Of 56 Service attack through memory exhaustion. Servers with a default 57 configuration are vulnerable even if they do not support OCSP. Builds using 58 the "no-ocsp" build time option are not affected. 59 60 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 61 (CVE-2016-6304) 62 [Matt Caswell] 63 64 *) In order to mitigate the SWEET32 attack, the DES ciphers were moved from 65 HIGH to MEDIUM. 66 67 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 68 Leurent (INRIA) 69 (CVE-2016-2183) 70 [Rich Salz] 71 72 *) OOB write in MDC2_Update() 73 74 An overflow can occur in MDC2_Update() either if called directly or 75 through the EVP_DigestUpdate() function using MDC2. If an attacker 76 is able to supply very large amounts of input data after a previous 77 call to EVP_EncryptUpdate() with a partial block then a length check 78 can overflow resulting in a heap corruption. 79 80 The amount of data needed is comparable to SIZE_MAX which is impractical 81 on most platforms. 82 83 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 84 (CVE-2016-6303) 85 [Stephen Henson] 86 87 *) Malformed SHA512 ticket DoS 88 89 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 90 DoS attack where a malformed ticket will result in an OOB read which will 91 ultimately crash. 92 93 The use of SHA512 in TLS session tickets is comparatively rare as it requires 94 a custom server callback and ticket lookup mechanism. 95 96 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 97 (CVE-2016-6302) 98 [Stephen Henson] 99 100 *) OOB write in BN_bn2dec() 101 102 The function BN_bn2dec() does not check the return value of BN_div_word(). 103 This can cause an OOB write if an application uses this function with an 104 overly large BIGNUM. This could be a problem if an overly large certificate 105 or CRL is printed out from an untrusted source. TLS is not affected because 106 record limits will reject an oversized certificate before it is parsed. 107 108 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 109 (CVE-2016-2182) 110 [Stephen Henson] 111 112 *) OOB read in TS_OBJ_print_bio() 113 114 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 115 the total length the OID text representation would use and not the amount 116 of data written. This will result in OOB reads when large OIDs are 117 presented. 118 119 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 120 (CVE-2016-2180) 121 [Stephen Henson] 122 123 *) Pointer arithmetic undefined behaviour 124 125 Avoid some undefined pointer arithmetic 126 127 A common idiom in the codebase is to check limits in the following manner: 128 "p + len > limit" 129 130 Where "p" points to some malloc'd data of SIZE bytes and 131 limit == p + SIZE 132 133 "len" here could be from some externally supplied data (e.g. from a TLS 134 message). 135 136 The rules of C pointer arithmetic are such that "p + len" is only well 137 defined where len <= SIZE. Therefore the above idiom is actually 138 undefined behaviour. 139 140 For example this could cause problems if some malloc implementation 141 provides an address for "p" such that "p + len" actually overflows for 142 values of len that are too big and therefore p + len < limit. 143 144 This issue was reported to OpenSSL by Guido Vranken 145 (CVE-2016-2177) 146 [Matt Caswell] 147 148 *) Constant time flag not preserved in DSA signing 149 150 Operations in the DSA signing algorithm should run in constant time in 151 order to avoid side channel attacks. A flaw in the OpenSSL DSA 152 implementation means that a non-constant time codepath is followed for 153 certain operations. This has been demonstrated through a cache-timing 154 attack to be sufficient for an attacker to recover the private DSA key. 155 156 This issue was reported by César Pereida (Aalto University), Billy Brumley 157 (Tampere University of Technology), and Yuval Yarom (The University of 158 Adelaide and NICTA). 159 (CVE-2016-2178) 160 [César Pereida] 161 162 *) DTLS buffered message DoS 163 164 In a DTLS connection where handshake messages are delivered out-of-order 165 those messages that OpenSSL is not yet ready to process will be buffered 166 for later use. Under certain circumstances, a flaw in the logic means that 167 those messages do not get removed from the buffer even though the handshake 168 has been completed. An attacker could force up to approx. 15 messages to 169 remain in the buffer when they are no longer required. These messages will 170 be cleared when the DTLS connection is closed. The default maximum size for 171 a message is 100k. Therefore the attacker could force an additional 1500k 172 to be consumed per connection. By opening many simulataneous connections an 173 attacker could cause a DoS attack through memory exhaustion. 174 175 This issue was reported to OpenSSL by Quan Luo. 176 (CVE-2016-2179) 177 [Matt Caswell] 178 179 *) DTLS replay protection DoS 180 181 A flaw in the DTLS replay attack protection mechanism means that records 182 that arrive for future epochs update the replay protection "window" before 183 the MAC for the record has been validated. This could be exploited by an 184 attacker by sending a record for the next epoch (which does not have to 185 decrypt or have a valid MAC), with a very large sequence number. This means 186 that all subsequent legitimate packets are dropped causing a denial of 187 service for a specific DTLS connection. 188 189 This issue was reported to OpenSSL by the OCAP audit team. 190 (CVE-2016-2181) 191 [Matt Caswell] 192 193 *) Certificate message OOB reads 194 195 In OpenSSL 1.0.2 and earlier some missing message length checks can result 196 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 197 theoretical DoS risk but this has not been observed in practice on common 198 platforms. 199 200 The messages affected are client certificate, client certificate request 201 and server certificate. As a result the attack can only be performed 202 against a client or a server which enables client authentication. 203 204 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 205 (CVE-2016-6306) 206 [Stephen Henson] 207 208 Changes between 1.0.2g and 1.0.2h [3 May 2016] 209 210 *) Prevent padding oracle in AES-NI CBC MAC check 211 212 A MITM attacker can use a padding oracle attack to decrypt traffic 213 when the connection uses an AES CBC cipher and the server support 214 AES-NI. 215 216 This issue was introduced as part of the fix for Lucky 13 padding 217 attack (CVE-2013-0169). The padding check was rewritten to be in 218 constant time by making sure that always the same bytes are read and 219 compared against either the MAC or padding bytes. But it no longer 220 checked that there was enough data to have both the MAC and padding 221 bytes. 222 223 This issue was reported by Juraj Somorovsky using TLS-Attacker. 224 (CVE-2016-2107) 225 [Kurt Roeckx] 226 227 *) Fix EVP_EncodeUpdate overflow 228 229 An overflow can occur in the EVP_EncodeUpdate() function which is used for 230 Base64 encoding of binary data. If an attacker is able to supply very large 231 amounts of input data then a length check can overflow resulting in a heap 232 corruption. 233 234 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 235 the PEM_write_bio* family of functions. These are mainly used within the 236 OpenSSL command line applications, so any application which processes data 237 from an untrusted source and outputs it as a PEM file should be considered 238 vulnerable to this issue. User applications that call these APIs directly 239 with large amounts of untrusted data may also be vulnerable. 240 241 This issue was reported by Guido Vranken. 242 (CVE-2016-2105) 243 [Matt Caswell] 244 245 *) Fix EVP_EncryptUpdate overflow 246 247 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 248 is able to supply very large amounts of input data after a previous call to 249 EVP_EncryptUpdate() with a partial block then a length check can overflow 250 resulting in a heap corruption. Following an analysis of all OpenSSL 251 internal usage of the EVP_EncryptUpdate() function all usage is one of two 252 forms. The first form is where the EVP_EncryptUpdate() call is known to be 253 the first called function after an EVP_EncryptInit(), and therefore that 254 specific call must be safe. The second form is where the length passed to 255 EVP_EncryptUpdate() can be seen from the code to be some small value and 256 therefore there is no possibility of an overflow. Since all instances are 257 one of these two forms, it is believed that there can be no overflows in 258 internal code due to this problem. It should be noted that 259 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 260 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 261 of these calls have also been analysed too and it is believed there are no 262 instances in internal usage where an overflow could occur. 263 264 This issue was reported by Guido Vranken. 265 (CVE-2016-2106) 266 [Matt Caswell] 267 268 *) Prevent ASN.1 BIO excessive memory allocation 269 270 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 271 a short invalid encoding can casuse allocation of large amounts of memory 272 potentially consuming excessive resources or exhausting memory. 273 274 Any application parsing untrusted data through d2i BIO functions is 275 affected. The memory based functions such as d2i_X509() are *not* affected. 276 Since the memory based functions are used by the TLS library, TLS 277 applications are not affected. 278 279 This issue was reported by Brian Carpenter. 280 (CVE-2016-2109) 281 [Stephen Henson] 282 283 *) EBCDIC overread 284 285 ASN1 Strings that are over 1024 bytes can cause an overread in applications 286 using the X509_NAME_oneline() function on EBCDIC systems. This could result 287 in arbitrary stack data being returned in the buffer. 288 289 This issue was reported by Guido Vranken. 290 (CVE-2016-2176) 291 [Matt Caswell] 292 293 *) Modify behavior of ALPN to invoke callback after SNI/servername 294 callback, such that updates to the SSL_CTX affect ALPN. 295 [Todd Short] 296 297 *) Remove LOW from the DEFAULT cipher list. This removes singles DES from the 298 default. 299 [Kurt Roeckx] 300 301 *) Only remove the SSLv2 methods with the no-ssl2-method option. When the 302 methods are enabled and ssl2 is disabled the methods return NULL. 303 [Kurt Roeckx] 304 305 Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 306 307 * Builds that are not configured with "enable-ssl2" will not support SSLv2. 308 Even if "enable-ssl2" is used, users who want to negotiate SSLv2 via the 309 version-flexible SSLv23_method() will need to explicitly call either of: 310 311 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 312 or 313 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 314 315 as appropriate. Even if either of those is used, or the application 316 explicitly uses the version-specific SSLv2_method() or its client and 317 server variants, SSLv2 ciphers vulnerable to exhaustive search key 318 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 319 ciphers, and SSLv2 56-bit DES are no longer available. 320 (CVE-2016-0800) 321 [Viktor Dukhovni] 322 323 *) Fix a double-free in DSA code 324 325 A double free bug was discovered when OpenSSL parses malformed DSA private 326 keys and could lead to a DoS attack or memory corruption for applications 327 that receive DSA private keys from untrusted sources. This scenario is 328 considered rare. 329 330 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 331 libFuzzer. 332 (CVE-2016-0705) 333 [Stephen Henson] 334 335 *) Disable SRP fake user seed to address a server memory leak. 336 337 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 338 339 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 340 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 341 was changed to ignore the "fake user" SRP seed, even if the seed 342 is configured. 343 344 Users should use SRP_VBASE_get1_by_user instead. Note that in 345 SRP_VBASE_get1_by_user, caller must free the returned value. Note 346 also that even though configuring the SRP seed attempts to hide 347 invalid usernames by continuing the handshake with fake 348 credentials, this behaviour is not constant time and no strong 349 guarantees are made that the handshake is indistinguishable from 350 that of a valid user. 351 (CVE-2016-0798) 352 [Emilia Käsper] 353 354 *) Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 355 356 In the BN_hex2bn function the number of hex digits is calculated using an 357 int value |i|. Later |bn_expand| is called with a value of |i * 4|. For 358 large values of |i| this can result in |bn_expand| not allocating any 359 memory because |i * 4| is negative. This can leave the internal BIGNUM data 360 field as NULL leading to a subsequent NULL ptr deref. For very large values 361 of |i|, the calculation |i * 4| could be a positive value smaller than |i|. 362 In this case memory is allocated to the internal BIGNUM data field, but it 363 is insufficiently sized leading to heap corruption. A similar issue exists 364 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 365 is ever called by user applications with very large untrusted hex/dec data. 366 This is anticipated to be a rare occurrence. 367 368 All OpenSSL internal usage of these functions use data that is not expected 369 to be untrusted, e.g. config file data or application command line 370 arguments. If user developed applications generate config file data based 371 on untrusted data then it is possible that this could also lead to security 372 consequences. This is also anticipated to be rare. 373 374 This issue was reported to OpenSSL by Guido Vranken. 375 (CVE-2016-0797) 376 [Matt Caswell] 377 378 *) Fix memory issues in BIO_*printf functions 379 380 The internal |fmtstr| function used in processing a "%s" format string in 381 the BIO_*printf functions could overflow while calculating the length of a 382 string and cause an OOB read when printing very long strings. 383 384 Additionally the internal |doapr_outch| function can attempt to write to an 385 OOB memory location (at an offset from the NULL pointer) in the event of a 386 memory allocation failure. In 1.0.2 and below this could be caused where 387 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 388 could be in processing a very long "%s" format string. Memory leaks can 389 also occur. 390 391 The first issue may mask the second issue dependent on compiler behaviour. 392 These problems could enable attacks where large amounts of untrusted data 393 is passed to the BIO_*printf functions. If applications use these functions 394 in this way then they could be vulnerable. OpenSSL itself uses these 395 functions when printing out human-readable dumps of ASN.1 data. Therefore 396 applications that print this data could be vulnerable if the data is from 397 untrusted sources. OpenSSL command line applications could also be 398 vulnerable where they print out ASN.1 data, or if untrusted data is passed 399 as command line arguments. 400 401 Libssl is not considered directly vulnerable. Additionally certificates etc 402 received via remote connections via libssl are also unlikely to be able to 403 trigger these issues because of message size limits enforced within libssl. 404 405 This issue was reported to OpenSSL Guido Vranken. 406 (CVE-2016-0799) 407 [Matt Caswell] 408 409 *) Side channel attack on modular exponentiation 410 411 A side-channel attack was found which makes use of cache-bank conflicts on 412 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 413 of RSA keys. The ability to exploit this issue is limited as it relies on 414 an attacker who has control of code in a thread running on the same 415 hyper-threaded core as the victim thread which is performing decryptions. 416 417 This issue was reported to OpenSSL by Yuval Yarom, The University of 418 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 419 Nadia Heninger, University of Pennsylvania with more information at 420 http://cachebleed.info. 421 (CVE-2016-0702) 422 [Andy Polyakov] 423 424 *) Change the req app to generate a 2048-bit RSA/DSA key by default, 425 if no keysize is specified with default_bits. This fixes an 426 omission in an earlier change that changed all RSA/DSA key generation 427 apps to use 2048 bits by default. 428 [Emilia Käsper] 429 430 Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 431 432 *) DH small subgroups 433 434 Historically OpenSSL only ever generated DH parameters based on "safe" 435 primes. More recently (in version 1.0.2) support was provided for 436 generating X9.42 style parameter files such as those required for RFC 5114 437 support. The primes used in such files may not be "safe". Where an 438 application is using DH configured with parameters based on primes that are 439 not "safe" then an attacker could use this fact to find a peer's private 440 DH exponent. This attack requires that the attacker complete multiple 441 handshakes in which the peer uses the same private DH exponent. For example 442 this could be used to discover a TLS server's private DH exponent if it's 443 reusing the private DH exponent or it's using a static DH ciphersuite. 444 445 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 446 TLS. It is not on by default. If the option is not set then the server 447 reuses the same private DH exponent for the life of the server process and 448 would be vulnerable to this attack. It is believed that many popular 449 applications do set this option and would therefore not be at risk. 450 451 The fix for this issue adds an additional check where a "q" parameter is 452 available (as is the case in X9.42 based parameters). This detects the 453 only known attack, and is the only possible defense for static DH 454 ciphersuites. This could have some performance impact. 455 456 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 457 default and cannot be disabled. This could have some performance impact. 458 459 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 460 (CVE-2016-0701) 461 [Matt Caswell] 462 463 *) SSLv2 doesn't block disabled ciphers 464 465 A malicious client can negotiate SSLv2 ciphers that have been disabled on 466 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 467 been disabled, provided that the SSLv2 protocol was not also disabled via 468 SSL_OP_NO_SSLv2. 469 470 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 471 and Sebastian Schinzel. 472 (CVE-2015-3197) 473 [Viktor Dukhovni] 474 475 *) Reject DH handshakes with parameters shorter than 1024 bits. 476 [Kurt Roeckx] 477 478 Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 479 480 *) BN_mod_exp may produce incorrect results on x86_64 481 482 There is a carry propagating bug in the x86_64 Montgomery squaring 483 procedure. No EC algorithms are affected. Analysis suggests that attacks 484 against RSA and DSA as a result of this defect would be very difficult to 485 perform and are not believed likely. Attacks against DH are considered just 486 feasible (although very difficult) because most of the work necessary to 487 deduce information about a private key may be performed offline. The amount 488 of resources required for such an attack would be very significant and 489 likely only accessible to a limited number of attackers. An attacker would 490 additionally need online access to an unpatched system using the target 491 private key in a scenario with persistent DH parameters and a private 492 key that is shared between multiple clients. For example this can occur by 493 default in OpenSSL DHE based SSL/TLS ciphersuites. 494 495 This issue was reported to OpenSSL by Hanno Böck. 496 (CVE-2015-3193) 497 [Andy Polyakov] 498 499 *) Certificate verify crash with missing PSS parameter 500 501 The signature verification routines will crash with a NULL pointer 502 dereference if presented with an ASN.1 signature using the RSA PSS 503 algorithm and absent mask generation function parameter. Since these 504 routines are used to verify certificate signature algorithms this can be 505 used to crash any certificate verification operation and exploited in a 506 DoS attack. Any application which performs certificate verification is 507 vulnerable including OpenSSL clients and servers which enable client 508 authentication. 509 510 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 511 (CVE-2015-3194) 512 [Stephen Henson] 513 514 *) X509_ATTRIBUTE memory leak 515 516 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 517 memory. This structure is used by the PKCS#7 and CMS routines so any 518 application which reads PKCS#7 or CMS data from untrusted sources is 519 affected. SSL/TLS is not affected. 520 521 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 522 libFuzzer. 523 (CVE-2015-3195) 524 [Stephen Henson] 525 526 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 527 This changes the decoding behaviour for some invalid messages, 528 though the change is mostly in the more lenient direction, and 529 legacy behaviour is preserved as much as possible. 530 [Emilia Käsper] 531 532 *) In DSA_generate_parameters_ex, if the provided seed is too short, 533 use a random seed, as already documented. 534 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 535 536 Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 537 538 *) Alternate chains certificate forgery 539 540 During certificate verfification, OpenSSL will attempt to find an 541 alternative certificate chain if the first attempt to build such a chain 542 fails. An error in the implementation of this logic can mean that an 543 attacker could cause certain checks on untrusted certificates to be 544 bypassed, such as the CA flag, enabling them to use a valid leaf 545 certificate to act as a CA and "issue" an invalid certificate. 546 547 This issue was reported to OpenSSL by Adam Langley/David Benjamin 548 (Google/BoringSSL). 549 (CVE-2015-1793) 550 [Matt Caswell] 551 552 *) Race condition handling PSK identify hint 553 554 If PSK identity hints are received by a multi-threaded client then 555 the values are wrongly updated in the parent SSL_CTX structure. This can 556 result in a race condition potentially leading to a double free of the 557 identify hint data. 558 (CVE-2015-3196) 559 [Stephen Henson] 560 561 Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 562 563 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 564 incompatibility in the handling of HMAC. The previous ABI has now been 565 restored. 566 567 Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 568 569 *) Malformed ECParameters causes infinite loop 570 571 When processing an ECParameters structure OpenSSL enters an infinite loop 572 if the curve specified is over a specially malformed binary polynomial 573 field. 574 575 This can be used to perform denial of service against any 576 system which processes public keys, certificate requests or 577 certificates. This includes TLS clients and TLS servers with 578 client authentication enabled. 579 580 This issue was reported to OpenSSL by Joseph Barr-Pixton. 581 (CVE-2015-1788) 582 [Andy Polyakov] 583 584 *) Exploitable out-of-bounds read in X509_cmp_time 585 586 X509_cmp_time does not properly check the length of the ASN1_TIME 587 string and can read a few bytes out of bounds. In addition, 588 X509_cmp_time accepts an arbitrary number of fractional seconds in the 589 time string. 590 591 An attacker can use this to craft malformed certificates and CRLs of 592 various sizes and potentially cause a segmentation fault, resulting in 593 a DoS on applications that verify certificates or CRLs. TLS clients 594 that verify CRLs are affected. TLS clients and servers with client 595 authentication enabled may be affected if they use custom verification 596 callbacks. 597 598 This issue was reported to OpenSSL by Robert Swiecki (Google), and 599 independently by Hanno Böck. 600 (CVE-2015-1789) 601 [Emilia Käsper] 602 603 *) PKCS7 crash with missing EnvelopedContent 604 605 The PKCS#7 parsing code does not handle missing inner EncryptedContent 606 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 607 with missing content and trigger a NULL pointer dereference on parsing. 608 609 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 610 structures from untrusted sources are affected. OpenSSL clients and 611 servers are not affected. 612 613 This issue was reported to OpenSSL by Michal Zalewski (Google). 614 (CVE-2015-1790) 615 [Emilia Käsper] 616 617 *) CMS verify infinite loop with unknown hash function 618 619 When verifying a signedData message the CMS code can enter an infinite loop 620 if presented with an unknown hash function OID. This can be used to perform 621 denial of service against any system which verifies signedData messages using 622 the CMS code. 623 This issue was reported to OpenSSL by Johannes Bauer. 624 (CVE-2015-1792) 625 [Stephen Henson] 626 627 *) Race condition handling NewSessionTicket 628 629 If a NewSessionTicket is received by a multi-threaded client when attempting to 630 reuse a previous ticket then a race condition can occur potentially leading to 631 a double free of the ticket data. 632 (CVE-2015-1791) 633 [Matt Caswell] 634 635 *) Reject DH handshakes with parameters shorter than 768 bits. 636 [Kurt Roeckx and Emilia Kasper] 637 638 Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 639 640 *) ClientHello sigalgs DoS fix 641 642 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 643 invalid signature algorithms extension a NULL pointer dereference will 644 occur. This can be exploited in a DoS attack against the server. 645 646 This issue was was reported to OpenSSL by David Ramos of Stanford 647 University. 648 (CVE-2015-0291) 649 [Stephen Henson and Matt Caswell] 650 651 *) Multiblock corrupted pointer fix 652 653 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 654 feature only applies on 64 bit x86 architecture platforms that support AES 655 NI instructions. A defect in the implementation of "multiblock" can cause 656 OpenSSL's internal write buffer to become incorrectly set to NULL when 657 using non-blocking IO. Typically, when the user application is using a 658 socket BIO for writing, this will only result in a failed connection. 659 However if some other BIO is used then it is likely that a segmentation 660 fault will be triggered, thus enabling a potential DoS attack. 661 662 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 663 (CVE-2015-0290) 664 [Matt Caswell] 665 666 *) Segmentation fault in DTLSv1_listen fix 667 668 The DTLSv1_listen function is intended to be stateless and processes the 669 initial ClientHello from many peers. It is common for user code to loop 670 over the call to DTLSv1_listen until a valid ClientHello is received with 671 an associated cookie. A defect in the implementation of DTLSv1_listen means 672 that state is preserved in the SSL object from one invocation to the next 673 that can lead to a segmentation fault. Errors processing the initial 674 ClientHello can trigger this scenario. An example of such an error could be 675 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 676 server. 677 678 *) SRTP Memory Leak. 679 This issue was reported to OpenSSL by Per Allansson. 680 (CVE-2015-0207) 681 [Matt Caswell] 682 683 *) Segmentation fault in ASN1_TYPE_cmp fix 684 685 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 686 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 687 certificate signature algorithm consistency this can be used to crash any 688 certificate verification operation and exploited in a DoS attack. Any 689 application which performs certificate verification is vulnerable including 690 OpenSSL clients and servers which enable client authentication. 691 (CVE-2015-0286) 692 [Stephen Henson] 693 694 *) Segmentation fault for invalid PSS parameters fix 695 696 The signature verification routines will crash with a NULL pointer 697 dereference if presented with an ASN.1 signature using the RSA PSS 698 algorithm and invalid parameters. Since these routines are used to verify 699 certificate signature algorithms this can be used to crash any 700 certificate verification operation and exploited in a DoS attack. Any 701 application which performs certificate verification is vulnerable including 702 OpenSSL clients and servers which enable client authentication. 703 704 This issue was was reported to OpenSSL by Brian Carpenter. 705 (CVE-2015-0208) 706 [Stephen Henson] 707 708 *) ASN.1 structure reuse memory corruption fix 709 710 Reusing a structure in ASN.1 parsing may allow an attacker to cause 711 memory corruption via an invalid write. Such reuse is and has been 712 strongly discouraged and is believed to be rare. 713 714 Applications that parse structures containing CHOICE or ANY DEFINED BY 715 components may be affected. Certificate parsing (d2i_X509 and related 716 functions) are however not affected. OpenSSL clients and servers are 717 not affected. 718 (CVE-2015-0287) 719 [Stephen Henson] 720 721 *) PKCS7 NULL pointer dereferences fix 722 723 The PKCS#7 parsing code does not handle missing outer ContentInfo 724 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 725 missing content and trigger a NULL pointer dereference on parsing. 726 727 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 728 otherwise parse PKCS#7 structures from untrusted sources are 729 affected. OpenSSL clients and servers are not affected. 730 731 This issue was reported to OpenSSL by Michal Zalewski (Google). 732 (CVE-2015-0289) 733 [Emilia Käsper] 734 735 *) DoS via reachable assert in SSLv2 servers fix 736 737 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 738 servers that both support SSLv2 and enable export cipher suites by sending 739 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 740 741 This issue was discovered by Sean Burford (Google) and Emilia Käsper 742 (OpenSSL development team). 743 (CVE-2015-0293) 744 [Emilia Käsper] 745 746 *) Empty CKE with client auth and DHE fix 747 748 If client auth is used then a server can seg fault in the event of a DHE 749 ciphersuite being selected and a zero length ClientKeyExchange message 750 being sent by the client. This could be exploited in a DoS attack. 751 (CVE-2015-1787) 752 [Matt Caswell] 753 754 *) Handshake with unseeded PRNG fix 755 756 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 757 with an unseeded PRNG. The conditions are: 758 - The client is on a platform where the PRNG has not been seeded 759 automatically, and the user has not seeded manually 760 - A protocol specific client method version has been used (i.e. not 761 SSL_client_methodv23) 762 - A ciphersuite is used that does not require additional random data from 763 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 764 765 If the handshake succeeds then the client random that has been used will 766 have been generated from a PRNG with insufficient entropy and therefore the 767 output may be predictable. 768 769 For example using the following command with an unseeded openssl will 770 succeed on an unpatched platform: 771 772 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 773 (CVE-2015-0285) 774 [Matt Caswell] 775 776 *) Use After Free following d2i_ECPrivatekey error fix 777 778 A malformed EC private key file consumed via the d2i_ECPrivateKey function 779 could cause a use after free condition. This, in turn, could cause a double 780 free in several private key parsing functions (such as d2i_PrivateKey 781 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 782 for applications that receive EC private keys from untrusted 783 sources. This scenario is considered rare. 784 785 This issue was discovered by the BoringSSL project and fixed in their 786 commit 517073cd4b. 787 (CVE-2015-0209) 788 [Matt Caswell] 789 790 *) X509_to_X509_REQ NULL pointer deref fix 791 792 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 793 the certificate key is invalid. This function is rarely used in practice. 794 795 This issue was discovered by Brian Carpenter. 796 (CVE-2015-0288) 797 [Stephen Henson] 798 799 *) Removed the export ciphers from the DEFAULT ciphers 800 [Kurt Roeckx] 801 802 Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 803 804 *) Support for TLS-RSA-PSK ciphersuites has been added. 805 [Giuseppe D'Angelo, Christian J. Dietrich] 806 807 *) Change RSA and DH/DSA key generation apps to generate 2048-bit 808 keys by default. 809 [Kurt Roeckx] 810 811 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 812 ARMv5 through ARMv8, as opposite to "locking" it to single one. 813 So far those who have to target multiple plaforms would compromise 814 and argue that binary targeting say ARMv5 would still execute on 815 ARMv8. "Universal" build resolves this compromise by providing 816 near-optimal performance even on newer platforms. 817 [Andy Polyakov] 818 819 *) Accelerated NIST P-256 elliptic curve implementation for x86_64 820 (other platforms pending). 821 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] 822 823 *) Add support for the SignedCertificateTimestampList certificate and 824 OCSP response extensions from RFC6962. 825 [Rob Stradling] 826 827 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 828 for corner cases. (Certain input points at infinity could lead to 829 bogus results, with non-infinity inputs mapped to infinity too.) 830 [Bodo Moeller] 831 832 *) Initial support for PowerISA 2.0.7, first implemented in POWER8. 833 This covers AES, SHA256/512 and GHASH. "Initial" means that most 834 common cases are optimized and there still is room for further 835 improvements. Vector Permutation AES for Altivec is also added. 836 [Andy Polyakov] 837 838 *) Add support for little-endian ppc64 Linux target. 839 [Marcelo Cerri (IBM)] 840 841 *) Initial support for AMRv8 ISA crypto extensions. This covers AES, 842 SHA1, SHA256 and GHASH. "Initial" means that most common cases 843 are optimized and there still is room for further improvements. 844 Both 32- and 64-bit modes are supported. 845 [Andy Polyakov, Ard Biesheuvel (Linaro)] 846 847 *) Improved ARMv7 NEON support. 848 [Andy Polyakov] 849 850 *) Support for SPARC Architecture 2011 crypto extensions, first 851 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 852 SHA256/512, MD5, GHASH and modular exponentiation. 853 [Andy Polyakov, David Miller] 854 855 *) Accelerated modular exponentiation for Intel processors, a.k.a. 856 RSAZ. 857 [Shay Gueron & Vlad Krasnov (Intel Corp)] 858 859 *) Support for new and upcoming Intel processors, including AVX2, 860 BMI and SHA ISA extensions. This includes additional "stitched" 861 implementations, AESNI-SHA256 and GCM, and multi-buffer support 862 for TLS encrypt. 863 864 This work was sponsored by Intel Corp. 865 [Andy Polyakov] 866 867 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 868 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 869 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 870 [Steve Henson] 871 872 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 873 this fixes a limiation in previous versions of OpenSSL. 874 [Steve Henson] 875 876 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 877 MGF1 digest and OAEP label. 878 [Steve Henson] 879 880 *) Add EVP support for key wrapping algorithms, to avoid problems with 881 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 882 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 883 algorithms and include tests cases. 884 [Steve Henson] 885 886 *) Add functions to allocate and set the fields of an ECDSA_METHOD 887 structure. 888 [Douglas E. Engert, Steve Henson] 889 890 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 891 difference in days and seconds between two tm or ASN1_TIME structures. 892 [Steve Henson] 893 894 *) Add -rev test option to s_server to just reverse order of characters 895 received by client and send back to server. Also prints an abbreviated 896 summary of the connection parameters. 897 [Steve Henson] 898 899 *) New option -brief for s_client and s_server to print out a brief summary 900 of connection parameters. 901 [Steve Henson] 902 903 *) Add callbacks for arbitrary TLS extensions. 904 [Trevor Perrin <trevp@trevp.net> and Ben Laurie] 905 906 *) New option -crl_download in several openssl utilities to download CRLs 907 from CRLDP extension in certificates. 908 [Steve Henson] 909 910 *) New options -CRL and -CRLform for s_client and s_server for CRLs. 911 [Steve Henson] 912 913 *) New function X509_CRL_diff to generate a delta CRL from the difference 914 of two full CRLs. Add support to "crl" utility. 915 [Steve Henson] 916 917 *) New functions to set lookup_crls function and to retrieve 918 X509_STORE from X509_STORE_CTX. 919 [Steve Henson] 920 921 *) Print out deprecated issuer and subject unique ID fields in 922 certificates. 923 [Steve Henson] 924 925 *) Extend OCSP I/O functions so they can be used for simple general purpose 926 HTTP as well as OCSP. New wrapper function which can be used to download 927 CRLs using the OCSP API. 928 [Steve Henson] 929 930 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. 931 [Steve Henson] 932 933 *) SSL_CONF* functions. These provide a common framework for application 934 configuration using configuration files or command lines. 935 [Steve Henson] 936 937 *) SSL/TLS tracing code. This parses out SSL/TLS records using the 938 message callback and prints the results. Needs compile time option 939 "enable-ssl-trace". New options to s_client and s_server to enable 940 tracing. 941 [Steve Henson] 942 943 *) New ctrl and macro to retrieve supported points extensions. 944 Print out extension in s_server and s_client. 945 [Steve Henson] 946 947 *) New functions to retrieve certificate signature and signature 948 OID NID. 949 [Steve Henson] 950 951 *) Add functions to retrieve and manipulate the raw cipherlist sent by a 952 client to OpenSSL. 953 [Steve Henson] 954 955 *) New Suite B modes for TLS code. These use and enforce the requirements 956 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 957 only use Suite B curves. The Suite B modes can be set by using the 958 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 959 [Steve Henson] 960 961 *) New chain verification flags for Suite B levels of security. Check 962 algorithms are acceptable when flags are set in X509_verify_cert. 963 [Steve Henson] 964 965 *) Make tls1_check_chain return a set of flags indicating checks passed 966 by a certificate chain. Add additional tests to handle client 967 certificates: checks for matching certificate type and issuer name 968 comparison. 969 [Steve Henson] 970 971 *) If an attempt is made to use a signature algorithm not in the peer 972 preference list abort the handshake. If client has no suitable 973 signature algorithms in response to a certificate request do not 974 use the certificate. 975 [Steve Henson] 976 977 *) If server EC tmp key is not in client preference list abort handshake. 978 [Steve Henson] 979 980 *) Add support for certificate stores in CERT structure. This makes it 981 possible to have different stores per SSL structure or one store in 982 the parent SSL_CTX. Include distint stores for certificate chain 983 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 984 to build and store a certificate chain in CERT structure: returing 985 an error if the chain cannot be built: this will allow applications 986 to test if a chain is correctly configured. 987 988 Note: if the CERT based stores are not set then the parent SSL_CTX 989 store is used to retain compatibility with existing behaviour. 990 991 [Steve Henson] 992 993 *) New function ssl_set_client_disabled to set a ciphersuite disabled 994 mask based on the current session, check mask when sending client 995 hello and checking the requested ciphersuite. 996 [Steve Henson] 997 998 *) New ctrls to retrieve and set certificate types in a certificate 999 request message. Print out received values in s_client. If certificate 1000 types is not set with custom values set sensible values based on 1001 supported signature algorithms. 1002 [Steve Henson] 1003 1004 *) Support for distinct client and server supported signature algorithms. 1005 [Steve Henson] 1006 1007 *) Add certificate callback. If set this is called whenever a certificate 1008 is required by client or server. An application can decide which 1009 certificate chain to present based on arbitrary criteria: for example 1010 supported signature algorithms. Add very simple example to s_server. 1011 This fixes many of the problems and restrictions of the existing client 1012 certificate callback: for example you can now clear an existing 1013 certificate and specify the whole chain. 1014 [Steve Henson] 1015 1016 *) Add new "valid_flags" field to CERT_PKEY structure which determines what 1017 the certificate can be used for (if anything). Set valid_flags field 1018 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 1019 to have similar checks in it. 1020 1021 Add new "cert_flags" field to CERT structure and include a "strict mode". 1022 This enforces some TLS certificate requirements (such as only permitting 1023 certificate signature algorithms contained in the supported algorithms 1024 extension) which some implementations ignore: this option should be used 1025 with caution as it could cause interoperability issues. 1026 [Steve Henson] 1027 1028 *) Update and tidy signature algorithm extension processing. Work out 1029 shared signature algorithms based on preferences and peer algorithms 1030 and print them out in s_client and s_server. Abort handshake if no 1031 shared signature algorithms. 1032 [Steve Henson] 1033 1034 *) Add new functions to allow customised supported signature algorithms 1035 for SSL and SSL_CTX structures. Add options to s_client and s_server 1036 to support them. 1037 [Steve Henson] 1038 1039 *) New function SSL_certs_clear() to delete all references to certificates 1040 from an SSL structure. Before this once a certificate had been added 1041 it couldn't be removed. 1042 [Steve Henson] 1043 1044 *) Integrate hostname, email address and IP address checking with certificate 1045 verification. New verify options supporting checking in opensl utility. 1046 [Steve Henson] 1047 1048 *) Fixes and wildcard matching support to hostname and email checking 1049 functions. Add manual page. 1050 [Florian Weimer (Red Hat Product Security Team)] 1051 1052 *) New functions to check a hostname email or IP address against a 1053 certificate. Add options x509 utility to print results of checks against 1054 a certificate. 1055 [Steve Henson] 1056 1057 *) Fix OCSP checking. 1058 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie] 1059 1060 *) Initial experimental support for explicitly trusted non-root CAs. 1061 OpenSSL still tries to build a complete chain to a root but if an 1062 intermediate CA has a trust setting included that is used. The first 1063 setting is used: whether to trust (e.g., -addtrust option to the x509 1064 utility) or reject. 1065 [Steve Henson] 1066 1067 *) Add -trusted_first option which attempts to find certificates in the 1068 trusted store even if an untrusted chain is also supplied. 1069 [Steve Henson] 1070 1071 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 1072 platform support for Linux and Android. 1073 [Andy Polyakov] 1074 1075 *) Support for linux-x32, ILP32 environment in x86_64 framework. 1076 [Andy Polyakov] 1077 1078 *) Experimental multi-implementation support for FIPS capable OpenSSL. 1079 When in FIPS mode the approved implementations are used as normal, 1080 when not in FIPS mode the internal unapproved versions are used instead. 1081 This means that the FIPS capable OpenSSL isn't forced to use the 1082 (often lower perfomance) FIPS implementations outside FIPS mode. 1083 [Steve Henson] 1084 1085 *) Transparently support X9.42 DH parameters when calling 1086 PEM_read_bio_DHparameters. This means existing applications can handle 1087 the new parameter format automatically. 1088 [Steve Henson] 1089 1090 *) Initial experimental support for X9.42 DH parameter format: mainly 1091 to support use of 'q' parameter for RFC5114 parameters. 1092 [Steve Henson] 1093 1094 *) Add DH parameters from RFC5114 including test data to dhtest. 1095 [Steve Henson] 1096 1097 *) Support for automatic EC temporary key parameter selection. If enabled 1098 the most preferred EC parameters are automatically used instead of 1099 hardcoded fixed parameters. Now a server just has to call: 1100 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 1101 support ECDH and use the most appropriate parameters. 1102 [Steve Henson] 1103 1104 *) Enhance and tidy EC curve and point format TLS extension code. Use 1105 static structures instead of allocation if default values are used. 1106 New ctrls to set curves we wish to support and to retrieve shared curves. 1107 Print out shared curves in s_server. New options to s_server and s_client 1108 to set list of supported curves. 1109 [Steve Henson] 1110 1111 *) New ctrls to retrieve supported signature algorithms and 1112 supported curve values as an array of NIDs. Extend openssl utility 1113 to print out received values. 1114 [Steve Henson] 1115 1116 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 1117 between NIDs and the more common NIST names such as "P-256". Enhance 1118 ecparam utility and ECC method to recognise the NIST names for curves. 1119 [Steve Henson] 1120 1121 *) Enhance SSL/TLS certificate chain handling to support different 1122 chains for each certificate instead of one chain in the parent SSL_CTX. 1123 [Steve Henson] 1124 1125 *) Support for fixed DH ciphersuite client authentication: where both 1126 server and client use DH certificates with common parameters. 1127 [Steve Henson] 1128 1129 *) Support for fixed DH ciphersuites: those requiring DH server 1130 certificates. 1131 [Steve Henson] 1132 1133 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of 1134 the certificate. 1135 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 1136 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 1137 X509_CINF_get_signature were reverted post internal team review. 1138 1139 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 1140 1141 *) Build fixes for the Windows and OpenVMS platforms 1142 [Matt Caswell and Richard Levitte] 1143 1144 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 1145 1146 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 1147 message can cause a segmentation fault in OpenSSL due to a NULL pointer 1148 dereference. This could lead to a Denial Of Service attack. Thanks to 1149 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 1150 (CVE-2014-3571) 1151 [Steve Henson] 1152 1153 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 1154 dtls1_buffer_record function under certain conditions. In particular this 1155 could occur if an attacker sent repeated DTLS records with the same 1156 sequence number but for the next epoch. The memory leak could be exploited 1157 by an attacker in a Denial of Service attack through memory exhaustion. 1158 Thanks to Chris Mueller for reporting this issue. 1159 (CVE-2015-0206) 1160 [Matt Caswell] 1161 1162 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 1163 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 1164 method would be set to NULL which could later result in a NULL pointer 1165 dereference. Thanks to Frank Schmirler for reporting this issue. 1166 (CVE-2014-3569) 1167 [Kurt Roeckx] 1168 1169 *) Abort handshake if server key exchange message is omitted for ephemeral 1170 ECDH ciphersuites. 1171 1172 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 1173 reporting this issue. 1174 (CVE-2014-3572) 1175 [Steve Henson] 1176 1177 *) Remove non-export ephemeral RSA code on client and server. This code 1178 violated the TLS standard by allowing the use of temporary RSA keys in 1179 non-export ciphersuites and could be used by a server to effectively 1180 downgrade the RSA key length used to a value smaller than the server 1181 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 1182 INRIA or reporting this issue. 1183 (CVE-2015-0204) 1184 [Steve Henson] 1185 1186 *) Fixed issue where DH client certificates are accepted without verification. 1187 An OpenSSL server will accept a DH certificate for client authentication 1188 without the certificate verify message. This effectively allows a client to 1189 authenticate without the use of a private key. This only affects servers 1190 which trust a client certificate authority which issues certificates 1191 containing DH keys: these are extremely rare and hardly ever encountered. 1192 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 1193 this issue. 1194 (CVE-2015-0205) 1195 [Steve Henson] 1196 1197 *) Ensure that the session ID context of an SSL is updated when its 1198 SSL_CTX is updated via SSL_set_SSL_CTX. 1199 1200 The session ID context is typically set from the parent SSL_CTX, 1201 and can vary with the CTX. 1202 [Adam Langley] 1203 1204 *) Fix various certificate fingerprint issues. 1205 1206 By using non-DER or invalid encodings outside the signed portion of a 1207 certificate the fingerprint can be changed without breaking the signature. 1208 Although no details of the signed portion of the certificate can be changed 1209 this can cause problems with some applications: e.g. those using the 1210 certificate fingerprint for blacklists. 1211 1212 1. Reject signatures with non zero unused bits. 1213 1214 If the BIT STRING containing the signature has non zero unused bits reject 1215 the signature. All current signature algorithms require zero unused bits. 1216 1217 2. Check certificate algorithm consistency. 1218 1219 Check the AlgorithmIdentifier inside TBS matches the one in the 1220 certificate signature. NB: this will result in signature failure 1221 errors for some broken certificates. 1222 1223 Thanks to Konrad Kraszewski from Google for reporting this issue. 1224 1225 3. Check DSA/ECDSA signatures use DER. 1226 1227 Reencode DSA/ECDSA signatures and compare with the original received 1228 signature. Return an error if there is a mismatch. 1229 1230 This will reject various cases including garbage after signature 1231 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 1232 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 1233 (negative or with leading zeroes). 1234 1235 Further analysis was conducted and fixes were developed by Stephen Henson 1236 of the OpenSSL core team. 1237 1238 (CVE-2014-8275) 1239 [Steve Henson] 1240 1241 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 1242 results on some platforms, including x86_64. This bug occurs at random 1243 with a very low probability, and is not known to be exploitable in any 1244 way, though its exact impact is difficult to determine. Thanks to Pieter 1245 Wuille (Blockstream) who reported this issue and also suggested an initial 1246 fix. Further analysis was conducted by the OpenSSL development team and 1247 Adam Langley of Google. The final fix was developed by Andy Polyakov of 1248 the OpenSSL core team. 1249 (CVE-2014-3570) 1250 [Andy Polyakov] 1251 1252 *) Do not resume sessions on the server if the negotiated protocol 1253 version does not match the session's version. Resuming with a different 1254 version, while not strictly forbidden by the RFC, is of questionable 1255 sanity and breaks all known clients. 1256 [David Benjamin, Emilia Käsper] 1257 1258 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 1259 early CCS messages during renegotiation. (Note that because 1260 renegotiation is encrypted, this early CCS was not exploitable.) 1261 [Emilia Käsper] 1262 1263 *) Tighten client-side session ticket handling during renegotiation: 1264 ensure that the client only accepts a session ticket if the server sends 1265 the extension anew in the ServerHello. Previously, a TLS client would 1266 reuse the old extension state and thus accept a session ticket if one was 1267 announced in the initial ServerHello. 1268 1269 Similarly, ensure that the client requires a session ticket if one 1270 was advertised in the ServerHello. Previously, a TLS client would 1271 ignore a missing NewSessionTicket message. 1272 [Emilia Käsper] 1273 1274 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 1275 1276 *) SRTP Memory Leak. 1277 1278 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 1279 sends a carefully crafted handshake message, to cause OpenSSL to fail 1280 to free up to 64k of memory causing a memory leak. This could be 1281 exploited in a Denial Of Service attack. This issue affects OpenSSL 1282 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 1283 whether SRTP is used or configured. Implementations of OpenSSL that 1284 have been compiled with OPENSSL_NO_SRTP defined are not affected. 1285 1286 The fix was developed by the OpenSSL team. 1287 (CVE-2014-3513) 1288 [OpenSSL team] 1289 1290 *) Session Ticket Memory Leak. 1291 1292 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 1293 integrity of that ticket is first verified. In the event of a session 1294 ticket integrity check failing, OpenSSL will fail to free memory 1295 causing a memory leak. By sending a large number of invalid session 1296 tickets an attacker could exploit this issue in a Denial Of Service 1297 attack. 1298 (CVE-2014-3567) 1299 [Steve Henson] 1300 1301 *) Build option no-ssl3 is incomplete. 1302 1303 When OpenSSL is configured with "no-ssl3" as a build option, servers 1304 could accept and complete a SSL 3.0 handshake, and clients could be 1305 configured to send them. 1306 (CVE-2014-3568) 1307 [Akamai and the OpenSSL team] 1308 1309 *) Add support for TLS_FALLBACK_SCSV. 1310 Client applications doing fallback retries should call 1311 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 1312 (CVE-2014-3566) 1313 [Adam Langley, Bodo Moeller] 1314 1315 *) Add additional DigestInfo checks. 1316 1317 Reencode DigestInto in DER and check against the original when 1318 verifying RSA signature: this will reject any improperly encoded 1319 DigestInfo structures. 1320 1321 Note: this is a precautionary measure and no attacks are currently known. 1322 1323 [Steve Henson] 1324 1325 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 1326 1327 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 1328 SRP code can be overrun an internal buffer. Add sanity check that 1329 g, A, B < N to SRP code. 1330 1331 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 1332 Group for discovering this issue. 1333 (CVE-2014-3512) 1334 [Steve Henson] 1335 1336 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 1337 TLS 1.0 instead of higher protocol versions when the ClientHello message 1338 is badly fragmented. This allows a man-in-the-middle attacker to force a 1339 downgrade to TLS 1.0 even if both the server and the client support a 1340 higher protocol version, by modifying the client's TLS records. 1341 1342 Thanks to David Benjamin and Adam Langley (Google) for discovering and 1343 researching this issue. 1344 (CVE-2014-3511) 1345 [David Benjamin] 1346 1347 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 1348 to a denial of service attack. A malicious server can crash the client 1349 with a null pointer dereference (read) by specifying an anonymous (EC)DH 1350 ciphersuite and sending carefully crafted handshake messages. 1351 1352 Thanks to Felix Gröbert (Google) for discovering and researching this 1353 issue. 1354 (CVE-2014-3510) 1355 [Emilia Käsper] 1356 1357 *) By sending carefully crafted DTLS packets an attacker could cause openssl 1358 to leak memory. This can be exploited through a Denial of Service attack. 1359 Thanks to Adam Langley for discovering and researching this issue. 1360 (CVE-2014-3507) 1361 [Adam Langley] 1362 1363 *) An attacker can force openssl to consume large amounts of memory whilst 1364 processing DTLS handshake messages. This can be exploited through a 1365 Denial of Service attack. 1366 Thanks to Adam Langley for discovering and researching this issue. 1367 (CVE-2014-3506) 1368 [Adam Langley] 1369 1370 *) An attacker can force an error condition which causes openssl to crash 1371 whilst processing DTLS packets due to memory being freed twice. This 1372 can be exploited through a Denial of Service attack. 1373 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 1374 this issue. 1375 (CVE-2014-3505) 1376 [Adam Langley] 1377 1378 *) If a multithreaded client connects to a malicious server using a resumed 1379 session and the server sends an ec point format extension it could write 1380 up to 255 bytes to freed memory. 1381 1382 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 1383 issue. 1384 (CVE-2014-3509) 1385 [Gabor Tyukasz] 1386 1387 *) A malicious server can crash an OpenSSL client with a null pointer 1388 dereference (read) by specifying an SRP ciphersuite even though it was not 1389 properly negotiated with the client. This can be exploited through a 1390 Denial of Service attack. 1391 1392 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 1393 discovering and researching this issue. 1394 (CVE-2014-5139) 1395 [Steve Henson] 1396 1397 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 1398 X509_name_oneline, X509_name_print_ex et al. to leak some information 1399 from the stack. Applications may be affected if they echo pretty printing 1400 output to the attacker. 1401 1402 Thanks to Ivan Fratric (Google) for discovering this issue. 1403 (CVE-2014-3508) 1404 [Emilia Käsper, and Steve Henson] 1405 1406 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 1407 for corner cases. (Certain input points at infinity could lead to 1408 bogus results, with non-infinity inputs mapped to infinity too.) 1409 [Bodo Moeller] 1410 1411 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 1412 1413 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 1414 handshake can force the use of weak keying material in OpenSSL 1415 SSL/TLS clients and servers. 1416 1417 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 1418 researching this issue. (CVE-2014-0224) 1419 [KIKUCHI Masashi, Steve Henson] 1420 1421 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 1422 OpenSSL DTLS client the code can be made to recurse eventually crashing 1423 in a DoS attack. 1424 1425 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 1426 (CVE-2014-0221) 1427 [Imre Rad, Steve Henson] 1428 1429 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 1430 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 1431 client or server. This is potentially exploitable to run arbitrary 1432 code on a vulnerable client or server. 1433 1434 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195) 1435 [Jüri Aedla, Steve Henson] 1436 1437 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 1438 are subject to a denial of service attack. 1439 1440 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 1441 this issue. (CVE-2014-3470) 1442 [Felix Gröbert, Ivan Fratric, Steve Henson] 1443 1444 *) Harmonize version and its documentation. -f flag is used to display 1445 compilation flags. 1446 [mancha <mancha1@zoho.com>] 1447 1448 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 1449 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 1450 [mancha <mancha1@zoho.com>] 1451 1452 *) Fix some double frees. These are not thought to be exploitable. 1453 [mancha <mancha1@zoho.com>] 1454 1455 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 1456 1457 *) A missing bounds check in the handling of the TLS heartbeat extension 1458 can be used to reveal up to 64k of memory to a connected client or 1459 server. 1460 1461 Thanks for Neel Mehta of Google Security for discovering this bug and to 1462 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 1463 preparing the fix (CVE-2014-0160) 1464 [Adam Langley, Bodo Moeller] 1465 1466 *) Fix for the attack described in the paper "Recovering OpenSSL 1467 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 1468 by Yuval Yarom and Naomi Benger. Details can be obtained from: 1469 http://eprint.iacr.org/2014/140 1470 1471 Thanks to Yuval Yarom and Naomi Benger for discovering this 1472 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 1473 [Yuval Yarom and Naomi Benger] 1474 1475 *) TLS pad extension: draft-agl-tls-padding-03 1476 1477 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 1478 TLS client Hello record length value would otherwise be > 255 and 1479 less that 512 pad with a dummy extension containing zeroes so it 1480 is at least 512 bytes long. 1481 1482 [Adam Langley, Steve Henson] 1483 1484 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 1485 1486 *) Fix for TLS record tampering bug. A carefully crafted invalid 1487 handshake could crash OpenSSL with a NULL pointer exception. 1488 Thanks to Anton Johansson for reporting this issues. 1489 (CVE-2013-4353) 1490 1491 *) Keep original DTLS digest and encryption contexts in retransmission 1492 structures so we can use the previous session parameters if they need 1493 to be resent. (CVE-2013-6450) 1494 [Steve Henson] 1495 1496 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 1497 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 1498 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 1499 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 1500 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 1501 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 1502 [Rob Stradling, Adam Langley] 1503 1504 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 1505 1506 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 1507 supporting platforms or when small records were transferred. 1508 [Andy Polyakov, Steve Henson] 1509 1510 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 1511 1512 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 1513 1514 This addresses the flaw in CBC record processing discovered by 1515 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 1516 at: http://www.isg.rhul.ac.uk/tls/ 1517 1518 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1519 Security Group at Royal Holloway, University of London 1520 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 1521 Emilia Käsper for the initial patch. 1522 (CVE-2013-0169) 1523 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 1524 1525 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 1526 ciphersuites which can be exploited in a denial of service attack. 1527 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 1528 and detecting this bug and to Wolfgang Ettlinger 1529 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 1530 (CVE-2012-2686) 1531 [Adam Langley] 1532 1533 *) Return an error when checking OCSP signatures when key is NULL. 1534 This fixes a DoS attack. (CVE-2013-0166) 1535 [Steve Henson] 1536 1537 *) Make openssl verify return errors. 1538 [Chris Palmer <palmer@google.com> and Ben Laurie] 1539 1540 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1541 the right response is stapled. Also change SSL_get_certificate() 1542 so it returns the certificate actually sent. 1543 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1544 [Rob Stradling <rob.stradling@comodo.com>] 1545 1546 *) Fix possible deadlock when decoding public keys. 1547 [Steve Henson] 1548 1549 *) Don't use TLS 1.0 record version number in initial client hello 1550 if renegotiating. 1551 [Steve Henson] 1552 1553 Changes between 1.0.1b and 1.0.1c [10 May 2012] 1554 1555 *) Sanity check record length before skipping explicit IV in TLS 1556 1.2, 1.1 and DTLS to fix DoS attack. 1557 1558 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1559 fuzzing as a service testing platform. 1560 (CVE-2012-2333) 1561 [Steve Henson] 1562 1563 *) Initialise tkeylen properly when encrypting CMS messages. 1564 Thanks to Solar Designer of Openwall for reporting this issue. 1565 [Steve Henson] 1566 1567 *) In FIPS mode don't try to use composite ciphers as they are not 1568 approved. 1569 [Steve Henson] 1570 1571 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 1572 1573 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 1574 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 1575 mean any application compiled against OpenSSL 1.0.0 headers setting 1576 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 1577 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 1578 0x10000000L Any application which was previously compiled against 1579 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 1580 will need to be recompiled as a result. Letting be results in 1581 inability to disable specifically TLS 1.1 and in client context, 1582 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 1583 [Steve Henson] 1584 1585 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 1586 disable just protocol X, but all protocols above X *if* there are 1587 protocols *below* X still enabled. In more practical terms it means 1588 that if application wants to disable TLS1.0 in favor of TLS1.1 and 1589 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 1590 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 1591 client side. 1592 [Andy Polyakov] 1593 1594 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 1595 1596 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1597 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1598 in CRYPTO_realloc_clean. 1599 1600 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1601 issue and to Adam Langley <agl@chromium.org> for fixing it. 1602 (CVE-2012-2110) 1603 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1604 1605 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 1606 [Adam Langley] 1607 1608 *) Workarounds for some broken servers that "hang" if a client hello 1609 record length exceeds 255 bytes. 1610 1611 1. Do not use record version number > TLS 1.0 in initial client 1612 hello: some (but not all) hanging servers will now work. 1613 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 1614 the number of ciphers sent in the client hello. This should be 1615 set to an even number, such as 50, for example by passing: 1616 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 1617 Most broken servers should now work. 1618 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 1619 TLS 1.2 client support entirely. 1620 [Steve Henson] 1621 1622 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 1623 [Andy Polyakov] 1624 1625 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 1626 1627 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 1628 STRING form instead of a DigestInfo. 1629 [Steve Henson] 1630 1631 *) The format used for MDC2 RSA signatures is inconsistent between EVP 1632 and the RSA_sign/RSA_verify functions. This was made more apparent when 1633 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 1634 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 1635 the correct format in RSA_verify so both forms transparently work. 1636 [Steve Henson] 1637 1638 *) Some servers which support TLS 1.0 can choke if we initially indicate 1639 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 1640 encrypted premaster secret. As a workaround use the maximum pemitted 1641 client version in client hello, this should keep such servers happy 1642 and still work with previous versions of OpenSSL. 1643 [Steve Henson] 1644 1645 *) Add support for TLS/DTLS heartbeats. 1646 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1647 1648 *) Add support for SCTP. 1649 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1650 1651 *) Improved PRNG seeding for VOS. 1652 [Paul Green <Paul.Green@stratus.com>] 1653 1654 *) Extensive assembler packs updates, most notably: 1655 1656 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 1657 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 1658 - x86_64: bit-sliced AES implementation; 1659 - ARM: NEON support, contemporary platforms optimizations; 1660 - s390x: z196 support; 1661 - *: GHASH and GF(2^m) multiplication implementations; 1662 1663 [Andy Polyakov] 1664 1665 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 1666 (removal of unnecessary code) 1667 [Peter Sylvester <peter.sylvester@edelweb.fr>] 1668 1669 *) Add TLS key material exporter from RFC 5705. 1670 [Eric Rescorla] 1671 1672 *) Add DTLS-SRTP negotiation from RFC 5764. 1673 [Eric Rescorla] 1674 1675 *) Add Next Protocol Negotiation, 1676 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 1677 disabled with a no-npn flag to config or Configure. Code donated 1678 by Google. 1679 [Adam Langley <agl@google.com> and Ben Laurie] 1680 1681 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 1682 NIST-P256, NIST-P521, with constant-time single point multiplication on 1683 typical inputs. Compiler support for the nonstandard type __uint128_t is 1684 required to use this (present in gcc 4.4 and later, for 64-bit builds). 1685 Code made available under Apache License version 2.0. 1686 1687 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 1688 line to include this in your build of OpenSSL, and run "make depend" (or 1689 "make update"). This enables the following EC_METHODs: 1690 1691 EC_GFp_nistp224_method() 1692 EC_GFp_nistp256_method() 1693 EC_GFp_nistp521_method() 1694 1695 EC_GROUP_new_by_curve_name() will automatically use these (while 1696 EC_GROUP_new_curve_GFp() currently prefers the more flexible 1697 implementations). 1698 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)] 1699 1700 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 1701 all platforms. Move ssize_t definition from e_os.h to the public 1702 header file e_os2.h as it now appears in public header file cms.h 1703 [Steve Henson] 1704 1705 *) New -sigopt option to the ca, req and x509 utilities. Additional 1706 signature parameters can be passed using this option and in 1707 particular PSS. 1708 [Steve Henson] 1709 1710 *) Add RSA PSS signing function. This will generate and set the 1711 appropriate AlgorithmIdentifiers for PSS based on those in the 1712 corresponding EVP_MD_CTX structure. No application support yet. 1713 [Steve Henson] 1714 1715 *) Support for companion algorithm specific ASN1 signing routines. 1716 New function ASN1_item_sign_ctx() signs a pre-initialised 1717 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 1718 the appropriate parameters. 1719 [Steve Henson] 1720 1721 *) Add new algorithm specific ASN1 verification initialisation function 1722 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 1723 handling will be the same no matter what EVP_PKEY_METHOD is used. 1724 Add a PSS handler to support verification of PSS signatures: checked 1725 against a number of sample certificates. 1726 [Steve Henson] 1727 1728 *) Add signature printing for PSS. Add PSS OIDs. 1729 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 1730 1731 *) Add algorithm specific signature printing. An individual ASN1 method 1732 can now print out signatures instead of the standard hex dump. 1733 1734 More complex signatures (e.g. PSS) can print out more meaningful 1735 information. Include DSA version that prints out the signature 1736 parameters r, s. 1737 [Steve Henson] 1738 1739 *) Password based recipient info support for CMS library: implementing 1740 RFC3211. 1741 [Steve Henson] 1742 1743 *) Split password based encryption into PBES2 and PBKDF2 functions. This 1744 neatly separates the code into cipher and PBE sections and is required 1745 for some algorithms that split PBES2 into separate pieces (such as 1746 password based CMS). 1747 [Steve Henson] 1748 1749 *) Session-handling fixes: 1750 - Fix handling of connections that are resuming with a session ID, 1751 but also support Session Tickets. 1752 - Fix a bug that suppressed issuing of a new ticket if the client 1753 presented a ticket with an expired session. 1754 - Try to set the ticket lifetime hint to something reasonable. 1755 - Make tickets shorter by excluding irrelevant information. 1756 - On the client side, don't ignore renewed tickets. 1757 [Adam Langley, Bodo Moeller (Google)] 1758 1759 *) Fix PSK session representation. 1760 [Bodo Moeller] 1761 1762 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 1763 1764 This work was sponsored by Intel. 1765 [Andy Polyakov] 1766 1767 *) Add GCM support to TLS library. Some custom code is needed to split 1768 the IV between the fixed (from PRF) and explicit (from TLS record) 1769 portions. This adds all GCM ciphersuites supported by RFC5288 and 1770 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 1771 add a special AESGCM string for GCM only. 1772 [Steve Henson] 1773 1774 *) Expand range of ctrls for AES GCM. Permit setting invocation 1775 field on decrypt and retrieval of invocation field only on encrypt. 1776 [Steve Henson] 1777 1778 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 1779 As required by RFC5289 these ciphersuites cannot be used if for 1780 versions of TLS earlier than 1.2. 1781 [Steve Henson] 1782 1783 *) For FIPS capable OpenSSL interpret a NULL default public key method 1784 as unset and return the appopriate default but do *not* set the default. 1785 This means we can return the appopriate method in applications that 1786 swicth between FIPS and non-FIPS modes. 1787 [Steve Henson] 1788 1789 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 1790 ENGINE is used then we cannot handle that in the FIPS module so we 1791 keep original code iff non-FIPS operations are allowed. 1792 [Steve Henson] 1793 1794 *) Add -attime option to openssl utilities. 1795 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 1796 1797 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 1798 [Steve Henson] 1799 1800 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 1801 FIPS EC methods unconditionally for now. 1802 [Steve Henson] 1803 1804 *) New build option no-ec2m to disable characteristic 2 code. 1805 [Steve Henson] 1806 1807 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 1808 all cases can be covered as some introduce binary incompatibilities. 1809 [Steve Henson] 1810 1811 *) Redirect RSA operations to FIPS module including keygen, 1812 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 1813 [Steve Henson] 1814 1815 *) Add similar low level API blocking to ciphers. 1816 [Steve Henson] 1817 1818 *) Low level digest APIs are not approved in FIPS mode: any attempt 1819 to use these will cause a fatal error. Applications that *really* want 1820 to use them can use the private_* version instead. 1821 [Steve Henson] 1822 1823 *) Redirect cipher operations to FIPS module for FIPS builds. 1824 [Steve Henson] 1825 1826 *) Redirect digest operations to FIPS module for FIPS builds. 1827 [Steve Henson] 1828 1829 *) Update build system to add "fips" flag which will link in fipscanister.o 1830 for static and shared library builds embedding a signature if needed. 1831 [Steve Henson] 1832 1833 *) Output TLS supported curves in preference order instead of numerical 1834 order. This is currently hardcoded for the highest order curves first. 1835 This should be configurable so applications can judge speed vs strength. 1836 [Steve Henson] 1837 1838 *) Add TLS v1.2 server support for client authentication. 1839 [Steve Henson] 1840 1841 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 1842 and enable MD5. 1843 [Steve Henson] 1844 1845 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 1846 FIPS modules versions. 1847 [Steve Henson] 1848 1849 *) Add TLS v1.2 client side support for client authentication. Keep cache 1850 of handshake records longer as we don't know the hash algorithm to use 1851 until after the certificate request message is received. 1852 [Steve Henson] 1853 1854 *) Initial TLS v1.2 client support. Add a default signature algorithms 1855 extension including all the algorithms we support. Parse new signature 1856 format in client key exchange. Relax some ECC signing restrictions for 1857 TLS v1.2 as indicated in RFC5246. 1858 [Steve Henson] 1859 1860 *) Add server support for TLS v1.2 signature algorithms extension. Switch 1861 to new signature format when needed using client digest preference. 1862 All server ciphersuites should now work correctly in TLS v1.2. No client 1863 support yet and no support for client certificates. 1864 [Steve Henson] 1865 1866 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 1867 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 1868 ciphersuites. At present only RSA key exchange ciphersuites work with 1869 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 1870 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 1871 and version checking. 1872 [Steve Henson] 1873 1874 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 1875 with this defined it will not be affected by any changes to ssl internal 1876 structures. Add several utility functions to allow openssl application 1877 to work with OPENSSL_NO_SSL_INTERN defined. 1878 [Steve Henson] 1879 1880 *) Add SRP support. 1881 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 1882 1883 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 1884 [Steve Henson] 1885 1886 *) Permit abbreviated handshakes when renegotiating using the function 1887 SSL_renegotiate_abbreviated(). 1888 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1889 1890 *) Add call to ENGINE_register_all_complete() to 1891 ENGINE_load_builtin_engines(), so some implementations get used 1892 automatically instead of needing explicit application support. 1893 [Steve Henson] 1894 1895 *) Add support for TLS key exporter as described in RFC5705. 1896 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 1897 1898 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 1899 a few changes are required: 1900 1901 Add SSL_OP_NO_TLSv1_1 flag. 1902 Add TLSv1_1 methods. 1903 Update version checking logic to handle version 1.1. 1904 Add explicit IV handling (ported from DTLS code). 1905 Add command line options to s_client/s_server. 1906 [Steve Henson] 1907 1908 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 1909 1910 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 1911 in CMS and PKCS7 code. When RSA decryption fails use a random key for 1912 content decryption and always return the same error. Note: this attack 1913 needs on average 2^20 messages so it only affects automated senders. The 1914 old behaviour can be reenabled in the CMS code by setting the 1915 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 1916 an MMA defence is not necessary. 1917 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 1918 this issue. (CVE-2012-0884) 1919 [Steve Henson] 1920 1921 *) Fix CVE-2011-4619: make sure we really are receiving a 1922 client hello before rejecting multiple SGC restarts. Thanks to 1923 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 1924 [Steve Henson] 1925 1926 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 1927 1928 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 1929 Thanks to Antonio Martin, Enterprise Secure Access Research and 1930 Development, Cisco Systems, Inc. for discovering this bug and 1931 preparing a fix. (CVE-2012-0050) 1932 [Antonio Martin] 1933 1934 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 1935 1936 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 1937 of the Vaudenay padding oracle attack on CBC mode encryption 1938 which enables an efficient plaintext recovery attack against 1939 the OpenSSL implementation of DTLS. Their attack exploits timing 1940 differences arising during decryption processing. A research 1941 paper describing this attack can be found at: 1942 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 1943 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1944 Security Group at Royal Holloway, University of London 1945 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 1946 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 1947 for preparing the fix. (CVE-2011-4108) 1948 [Robin Seggelmann, Michael Tuexen] 1949 1950 *) Clear bytes used for block padding of SSL 3.0 records. 1951 (CVE-2011-4576) 1952 [Adam Langley (Google)] 1953 1954 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 1955 Kadianakis <desnacked@gmail.com> for discovering this issue and 1956 Adam Langley for preparing the fix. (CVE-2011-4619) 1957 [Adam Langley (Google)] 1958 1959 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 1960 [Andrey Kulikov <amdeich@gmail.com>] 1961 1962 *) Prevent malformed RFC3779 data triggering an assertion failure. 1963 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 1964 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 1965 [Rob Austein <sra@hactrn.net>] 1966 1967 *) Improved PRNG seeding for VOS. 1968 [Paul Green <Paul.Green@stratus.com>] 1969 1970 *) Fix ssl_ciph.c set-up race. 1971 [Adam Langley (Google)] 1972 1973 *) Fix spurious failures in ecdsatest.c. 1974 [Emilia Käsper (Google)] 1975 1976 *) Fix the BIO_f_buffer() implementation (which was mixing different 1977 interpretations of the '..._len' fields). 1978 [Adam Langley (Google)] 1979 1980 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 1981 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 1982 threads won't reuse the same blinding coefficients. 1983 1984 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 1985 lock to call BN_BLINDING_invert_ex, and avoids one use of 1986 BN_BLINDING_update for each BN_BLINDING structure (previously, 1987 the last update always remained unused). 1988 [Emilia Käsper (Google)] 1989 1990 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 1991 [Bob Buckholz (Google)] 1992 1993 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 1994 1995 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 1996 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 1997 [Kaspar Brand <ossl@velox.ch>] 1998 1999 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 2000 for multi-threaded use of ECDH. (CVE-2011-3210) 2001 [Adam Langley (Google)] 2002 2003 *) Fix x509_name_ex_d2i memory leak on bad inputs. 2004 [Bodo Moeller] 2005 2006 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 2007 signature public key algorithm by using OID xref utilities instead. 2008 Before this you could only use some ECC ciphersuites with SHA1 only. 2009 [Steve Henson] 2010 2011 *) Add protection against ECDSA timing attacks as mentioned in the paper 2012 by Billy Bob Brumley and Nicola Tuveri, see: 2013 2014 http://eprint.iacr.org/2011/232.pdf 2015 2016 [Billy Bob Brumley and Nicola Tuveri] 2017 2018 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 2019 2020 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 2021 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 2022 2023 *) Fix bug in string printing code: if *any* escaping is enabled we must 2024 escape the escape character (backslash) or the resulting string is 2025 ambiguous. 2026 [Steve Henson] 2027 2028 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 2029 2030 *) Disable code workaround for ancient and obsolete Netscape browsers 2031 and servers: an attacker can use it in a ciphersuite downgrade attack. 2032 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 2033 [Steve Henson] 2034 2035 *) Fixed J-PAKE implementation error, originally discovered by 2036 Sebastien Martini, further info and confirmation from Stefan 2037 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 2038 [Ben Laurie] 2039 2040 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 2041 2042 *) Fix extension code to avoid race conditions which can result in a buffer 2043 overrun vulnerability: resumed sessions must not be modified as they can 2044 be shared by multiple threads. CVE-2010-3864 2045 [Steve Henson] 2046 2047 *) Fix WIN32 build system to correctly link an ENGINE directory into 2048 a DLL. 2049 [Steve Henson] 2050 2051 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 2052 2053 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 2054 (CVE-2010-1633) 2055 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 2056 2057 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 2058 2059 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 2060 context. The operation can be customised via the ctrl mechanism in 2061 case ENGINEs want to include additional functionality. 2062 [Steve Henson] 2063 2064 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 2065 [Steve Henson] 2066 2067 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 2068 output hashes compatible with older versions of OpenSSL. 2069 [Willy Weisz <weisz@vcpc.univie.ac.at>] 2070 2071 *) Fix compression algorithm handling: if resuming a session use the 2072 compression algorithm of the resumed session instead of determining 2073 it from client hello again. Don't allow server to change algorithm. 2074 [Steve Henson] 2075 2076 *) Add load_crls() function to apps tidying load_certs() too. Add option 2077 to verify utility to allow additional CRLs to be included. 2078 [Steve Henson] 2079 2080 *) Update OCSP request code to permit adding custom headers to the request: 2081 some responders need this. 2082 [Steve Henson] 2083 2084 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 2085 correctly. 2086 [Julia Lawall <julia@diku.dk>] 2087 2088 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 2089 needlessly dereferenced structures, used obsolete functions and 2090 didn't handle all updated verify codes correctly. 2091 [Steve Henson] 2092 2093 *) Disable MD2 in the default configuration. 2094 [Steve Henson] 2095 2096 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 2097 indicate the initial BIO being pushed or popped. This makes it possible 2098 to determine whether the BIO is the one explicitly called or as a result 2099 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 2100 it handles reference counts correctly and doesn't zero out the I/O bio 2101 when it is not being explicitly popped. WARNING: applications which 2102 included workarounds for the old buggy behaviour will need to be modified 2103 or they could free up already freed BIOs. 2104 [Steve Henson] 2105 2106 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 2107 renaming to all platforms (within the 0.9.8 branch, this was 2108 done conditionally on Netware platforms to avoid a name clash). 2109 [Guenter <lists@gknw.net>] 2110 2111 *) Add ECDHE and PSK support to DTLS. 2112 [Michael Tuexen <tuexen@fh-muenster.de>] 2113 2114 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 2115 be used on C++. 2116 [Steve Henson] 2117 2118 *) Add "missing" function EVP_MD_flags() (without this the only way to 2119 retrieve a digest flags is by accessing the structure directly. Update 2120 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 2121 or cipher is registered as in the "from" argument. Print out all 2122 registered digests in the dgst usage message instead of manually 2123 attempting to work them out. 2124 [Steve Henson] 2125 2126 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 2127 this allows the use of compression and extensions. Change default cipher 2128 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 2129 by default unless an application cipher string requests it. 2130 [Steve Henson] 2131 2132 *) Alter match criteria in PKCS12_parse(). It used to try to use local 2133 key ids to find matching certificates and keys but some PKCS#12 files 2134 don't follow the (somewhat unwritten) rules and this strategy fails. 2135 Now just gather all certificates together and the first private key 2136 then look for the first certificate that matches the key. 2137 [Steve Henson] 2138 2139 *) Support use of registered digest and cipher names for dgst and cipher 2140 commands instead of having to add each one as a special case. So now 2141 you can do: 2142 2143 openssl sha256 foo 2144 2145 as well as: 2146 2147 openssl dgst -sha256 foo 2148 2149 and this works for ENGINE based algorithms too. 2150 2151 [Steve Henson] 2152 2153 *) Update Gost ENGINE to support parameter files. 2154 [Victor B. Wagner <vitus@cryptocom.ru>] 2155 2156 *) Support GeneralizedTime in ca utility. 2157 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 2158 2159 *) Enhance the hash format used for certificate directory links. The new 2160 form uses the canonical encoding (meaning equivalent names will work 2161 even if they aren't identical) and uses SHA1 instead of MD5. This form 2162 is incompatible with the older format and as a result c_rehash should 2163 be used to rebuild symbolic links. 2164 [Steve Henson] 2165 2166 *) Make PKCS#8 the default write format for private keys, replacing the 2167 traditional format. This form is standardised, more secure and doesn't 2168 include an implicit MD5 dependency. 2169 [Steve Henson] 2170 2171 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 2172 committed to OpenSSL should pass this lot as a minimum. 2173 [Steve Henson] 2174 2175 *) Add session ticket override functionality for use by EAP-FAST. 2176 [Jouni Malinen <j@w1.fi>] 2177 2178 *) Modify HMAC functions to return a value. Since these can be implemented 2179 in an ENGINE errors can occur. 2180 [Steve Henson] 2181 2182 *) Type-checked OBJ_bsearch_ex. 2183 [Ben Laurie] 2184 2185 *) Type-checked OBJ_bsearch. Also some constification necessitated 2186 by type-checking. Still to come: TXT_DB, bsearch(?), 2187 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 2188 CONF_VALUE. 2189 [Ben Laurie] 2190 2191 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 2192 seconds to a tm structure directly, instead of going through OS 2193 specific date routines. This avoids any issues with OS routines such 2194 as the year 2038 bug. New *_adj() functions for ASN1 time structures 2195 and X509_time_adj_ex() to cover the extended range. The existing 2196 X509_time_adj() is still usable and will no longer have any date issues. 2197 [Steve Henson] 2198 2199 *) Delta CRL support. New use deltas option which will attempt to locate 2200 and search any appropriate delta CRLs available. 2201 2202 This work was sponsored by Google. 2203 [Steve Henson] 2204 2205 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 2206 code and add additional score elements. Validate alternate CRL paths 2207 as part of the CRL checking and indicate a new error "CRL path validation 2208 error" in this case. Applications wanting additional details can use 2209 the verify callback and check the new "parent" field. If this is not 2210 NULL CRL path validation is taking place. Existing applications wont 2211 see this because it requires extended CRL support which is off by 2212 default. 2213 2214 This work was sponsored by Google. 2215 [Steve Henson] 2216 2217 *) Support for freshest CRL extension. 2218 2219 This work was sponsored by Google. 2220 [Steve Henson] 2221 2222 *) Initial indirect CRL support. Currently only supported in the CRLs 2223 passed directly and not via lookup. Process certificate issuer 2224 CRL entry extension and lookup CRL entries by bother issuer name 2225 and serial number. Check and process CRL issuer entry in IDP extension. 2226 2227 This work was sponsored by Google. 2228 [Steve Henson] 2229 2230 *) Add support for distinct certificate and CRL paths. The CRL issuer 2231 certificate is validated separately in this case. Only enabled if 2232 an extended CRL support flag is set: this flag will enable additional 2233 CRL functionality in future. 2234 2235 This work was sponsored by Google. 2236 [Steve Henson] 2237 2238 *) Add support for policy mappings extension. 2239 2240 This work was sponsored by Google. 2241 [Steve Henson] 2242 2243 *) Fixes to pathlength constraint, self issued certificate handling, 2244 policy processing to align with RFC3280 and PKITS tests. 2245 2246 This work was sponsored by Google. 2247 [Steve Henson] 2248 2249 *) Support for name constraints certificate extension. DN, email, DNS 2250 and URI types are currently supported. 2251 2252 This work was sponsored by Google. 2253 [Steve Henson] 2254 2255 *) To cater for systems that provide a pointer-based thread ID rather 2256 than numeric, deprecate the current numeric thread ID mechanism and 2257 replace it with a structure and associated callback type. This 2258 mechanism allows a numeric "hash" to be extracted from a thread ID in 2259 either case, and on platforms where pointers are larger than 'long', 2260 mixing is done to help ensure the numeric 'hash' is usable even if it 2261 can't be guaranteed unique. The default mechanism is to use "&errno" 2262 as a pointer-based thread ID to distinguish between threads. 2263 2264 Applications that want to provide their own thread IDs should now use 2265 CRYPTO_THREADID_set_callback() to register a callback that will call 2266 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 2267 2268 Note that ERR_remove_state() is now deprecated, because it is tied 2269 to the assumption that thread IDs are numeric. ERR_remove_state(0) 2270 to free the current thread's error state should be replaced by 2271 ERR_remove_thread_state(NULL). 2272 2273 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 2274 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 2275 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 2276 application was previously providing a numeric thread callback that 2277 was inappropriate for distinguishing threads, then uniqueness might 2278 have been obtained with &errno that happened immediately in the 2279 intermediate development versions of OpenSSL; this is no longer the 2280 case, the numeric thread callback will now override the automatic use 2281 of &errno.) 2282 [Geoff Thorpe, with help from Bodo Moeller] 2283 2284 *) Initial support for different CRL issuing certificates. This covers a 2285 simple case where the self issued certificates in the chain exist and 2286 the real CRL issuer is higher in the existing chain. 2287 2288 This work was sponsored by Google. 2289 [Steve Henson] 2290 2291 *) Removed effectively defunct crypto/store from the build. 2292 [Ben Laurie] 2293 2294 *) Revamp of STACK to provide stronger type-checking. Still to come: 2295 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 2296 ASN1_STRING, CONF_VALUE. 2297 [Ben Laurie] 2298 2299 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 2300 RAM on SSL connections. This option can save about 34k per idle SSL. 2301 [Nick Mathewson] 2302 2303 *) Revamp of LHASH to provide stronger type-checking. Still to come: 2304 STACK, TXT_DB, bsearch, qsort. 2305 [Ben Laurie] 2306 2307 *) Initial support for Cryptographic Message Syntax (aka CMS) based 2308 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 2309 support for data, signedData, compressedData, digestedData and 2310 encryptedData, envelopedData types included. Scripts to check against 2311 RFC4134 examples draft and interop and consistency checks of many 2312 content types and variants. 2313 [Steve Henson] 2314 2315 *) Add options to enc utility to support use of zlib compression BIO. 2316 [Steve Henson] 2317 2318 *) Extend mk1mf to support importing of options and assembly language 2319 files from Configure script, currently only included in VC-WIN32. 2320 The assembly language rules can now optionally generate the source 2321 files from the associated perl scripts. 2322 [Steve Henson] 2323 2324 *) Implement remaining functionality needed to support GOST ciphersuites. 2325 Interop testing has been performed using CryptoPro implementations. 2326 [Victor B. Wagner <vitus@cryptocom.ru>] 2327 2328 *) s390x assembler pack. 2329 [Andy Polyakov] 2330 2331 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 2332 "family." 2333 [Andy Polyakov] 2334 2335 *) Implement Opaque PRF Input TLS extension as specified in 2336 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 2337 official specification yet and no extension type assignment by 2338 IANA exists, this extension (for now) will have to be explicitly 2339 enabled when building OpenSSL by providing the extension number 2340 to use. For example, specify an option 2341 2342 -DTLSEXT_TYPE_opaque_prf_input=0x9527 2343 2344 to the "config" or "Configure" script to enable the extension, 2345 assuming extension number 0x9527 (which is a completely arbitrary 2346 and unofficial assignment based on the MD5 hash of the Internet 2347 Draft). Note that by doing so, you potentially lose 2348 interoperability with other TLS implementations since these might 2349 be using the same extension number for other purposes. 2350 2351 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 2352 opaque PRF input value to use in the handshake. This will create 2353 an interal copy of the length-'len' string at 'src', and will 2354 return non-zero for success. 2355 2356 To get more control and flexibility, provide a callback function 2357 by using 2358 2359 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 2360 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 2361 2362 where 2363 2364 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 2365 void *arg; 2366 2367 Callback function 'cb' will be called in handshakes, and is 2368 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 2369 Argument 'arg' is for application purposes (the value as given to 2370 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 2371 be provided to the callback function). The callback function 2372 has to return non-zero to report success: usually 1 to use opaque 2373 PRF input just if possible, or 2 to enforce use of the opaque PRF 2374 input. In the latter case, the library will abort the handshake 2375 if opaque PRF input is not successfully negotiated. 2376 2377 Arguments 'peerinput' and 'len' given to the callback function 2378 will always be NULL and 0 in the case of a client. A server will 2379 see the client's opaque PRF input through these variables if 2380 available (NULL and 0 otherwise). Note that if the server 2381 provides an opaque PRF input, the length must be the same as the 2382 length of the client's opaque PRF input. 2383 2384 Note that the callback function will only be called when creating 2385 a new session (session resumption can resume whatever was 2386 previously negotiated), and will not be called in SSL 2.0 2387 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 2388 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 2389 for applications that need to enforce opaque PRF input. 2390 2391 [Bodo Moeller] 2392 2393 *) Update ssl code to support digests other than SHA1+MD5 for handshake 2394 MAC. 2395 2396 [Victor B. Wagner <vitus@cryptocom.ru>] 2397 2398 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2399 RFC4507bis. The encrypted ticket format is an encrypted encoded 2400 SSL_SESSION structure, that way new session features are automatically 2401 supported. 2402 2403 If a client application caches session in an SSL_SESSION structure 2404 support is transparent because tickets are now stored in the encoded 2405 SSL_SESSION. 2406 2407 The SSL_CTX structure automatically generates keys for ticket 2408 protection in servers so again support should be possible 2409 with no application modification. 2410 2411 If a client or server wishes to disable RFC4507 support then the option 2412 SSL_OP_NO_TICKET can be set. 2413 2414 Add a TLS extension debugging callback to allow the contents of any client 2415 or server extensions to be examined. 2416 2417 This work was sponsored by Google. 2418 [Steve Henson] 2419 2420 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 2421 OpenSSL should now compile cleanly on gcc 4.2 2422 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 2423 2424 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 2425 support including streaming MAC support: this is required for GOST 2426 ciphersuite support. 2427 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 2428 2429 *) Add option -stream to use PKCS#7 streaming in smime utility. New 2430 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 2431 to output in BER and PEM format. 2432 [Steve Henson] 2433 2434 *) Experimental support for use of HMAC via EVP_PKEY interface. This 2435 allows HMAC to be handled via the EVP_DigestSign*() interface. The 2436 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 2437 ENGINE support for HMAC keys which are unextractable. New -mac and 2438 -macopt options to dgst utility. 2439 [Steve Henson] 2440 2441 *) New option -sigopt to dgst utility. Update dgst to use 2442 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 2443 alternative signing paramaters such as X9.31 or PSS in the dgst 2444 utility. 2445 [Steve Henson] 2446 2447 *) Change ssl_cipher_apply_rule(), the internal function that does 2448 the work each time a ciphersuite string requests enabling 2449 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 2450 removing ("!foo+bar") a class of ciphersuites: Now it maintains 2451 the order of disabled ciphersuites such that those ciphersuites 2452 that most recently went from enabled to disabled not only stay 2453 in order with respect to each other, but also have higher priority 2454 than other disabled ciphersuites the next time ciphersuites are 2455 enabled again. 2456 2457 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 2458 the same ciphersuites as with "HIGH" alone, but in a specific 2459 order where the PSK ciphersuites come first (since they are the 2460 most recently disabled ciphersuites when "HIGH" is parsed). 2461 2462 Also, change ssl_create_cipher_list() (using this new 2463 funcionality) such that between otherwise identical 2464 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 2465 the default order. 2466 [Bodo Moeller] 2467 2468 *) Change ssl_create_cipher_list() so that it automatically 2469 arranges the ciphersuites in reasonable order before starting 2470 to process the rule string. Thus, the definition for "DEFAULT" 2471 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 2472 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 2473 This makes it much easier to arrive at a reasonable default order 2474 in applications for which anonymous ciphers are OK (meaning 2475 that you can't actually use DEFAULT). 2476 [Bodo Moeller; suggested by Victor Duchovni] 2477 2478 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 2479 processing) into multiple integers instead of setting 2480 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 2481 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 2482 (These masks as well as the individual bit definitions are hidden 2483 away into the non-exported interface ssl/ssl_locl.h, so this 2484 change to the definition of the SSL_CIPHER structure shouldn't 2485 affect applications.) This give us more bits for each of these 2486 categories, so there is no longer a need to coagulate AES128 and 2487 AES256 into a single algorithm bit, and to coagulate Camellia128 2488 and Camellia256 into a single algorithm bit, which has led to all 2489 kinds of kludges. 2490 2491 Thus, among other things, the kludge introduced in 0.9.7m and 2492 0.9.8e for masking out AES256 independently of AES128 or masking 2493 out Camellia256 independently of AES256 is not needed here in 0.9.9. 2494 2495 With the change, we also introduce new ciphersuite aliases that 2496 so far were missing: "AES128", "AES256", "CAMELLIA128", and 2497 "CAMELLIA256". 2498 [Bodo Moeller] 2499 2500 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 2501 Use the leftmost N bytes of the signature input if the input is 2502 larger than the prime q (with N being the size in bytes of q). 2503 [Nils Larsch] 2504 2505 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 2506 it yet and it is largely untested. 2507 [Steve Henson] 2508 2509 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 2510 [Nils Larsch] 2511 2512 *) Initial incomplete changes to avoid need for function casts in OpenSSL 2513 some compilers (gcc 4.2 and later) reject their use. Safestack is 2514 reimplemented. Update ASN1 to avoid use of legacy functions. 2515 [Steve Henson] 2516 2517 *) Win32/64 targets are linked with Winsock2. 2518 [Andy Polyakov] 2519 2520 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 2521 to external functions. This can be used to increase CRL handling 2522 efficiency especially when CRLs are very large by (for example) storing 2523 the CRL revoked certificates in a database. 2524 [Steve Henson] 2525 2526 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 2527 new CRLs added to a directory can be used. New command line option 2528 -verify_return_error to s_client and s_server. This causes real errors 2529 to be returned by the verify callback instead of carrying on no matter 2530 what. This reflects the way a "real world" verify callback would behave. 2531 [Steve Henson] 2532 2533 *) GOST engine, supporting several GOST algorithms and public key formats. 2534 Kindly donated by Cryptocom. 2535 [Cryptocom] 2536 2537 *) Partial support for Issuing Distribution Point CRL extension. CRLs 2538 partitioned by DP are handled but no indirect CRL or reason partitioning 2539 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 2540 selected via a scoring technique which handles IDP and AKID in CRLs. 2541 [Steve Henson] 2542 2543 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 2544 will ultimately be used for all verify operations: this will remove the 2545 X509_STORE dependency on certificate verification and allow alternative 2546 lookup methods. X509_STORE based implementations of these two callbacks. 2547 [Steve Henson] 2548 2549 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 2550 Modify get_crl() to find a valid (unexpired) CRL if possible. 2551 [Steve Henson] 2552 2553 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 2554 this would be called X509_CRL_cmp() but that name is already used by 2555 a function that just compares CRL issuer names. Cache several CRL 2556 extensions in X509_CRL structure and cache CRLDP in X509. 2557 [Steve Henson] 2558 2559 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 2560 this maps equivalent X509_NAME structures into a consistent structure. 2561 Name comparison can then be performed rapidly using memcmp(). 2562 [Steve Henson] 2563 2564 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 2565 utility. 2566 [Steve Henson] 2567 2568 *) Allow digests to supply their own micalg string for S/MIME type using 2569 the ctrl EVP_MD_CTRL_MICALG. 2570 [Steve Henson] 2571 2572 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 2573 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 2574 ctrl. It can then customise the structure before and/or after signing 2575 if necessary. 2576 [Steve Henson] 2577 2578 *) New function OBJ_add_sigid() to allow application defined signature OIDs 2579 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 2580 to free up any added signature OIDs. 2581 [Steve Henson] 2582 2583 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 2584 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 2585 digest and cipher tables. New options added to openssl utility: 2586 list-message-digest-algorithms and list-cipher-algorithms. 2587 [Steve Henson] 2588 2589 *) Change the array representation of binary polynomials: the list 2590 of degrees of non-zero coefficients is now terminated with -1. 2591 Previously it was terminated with 0, which was also part of the 2592 value; thus, the array representation was not applicable to 2593 polynomials where t^0 has coefficient zero. This change makes 2594 the array representation useful in a more general context. 2595 [Douglas Stebila] 2596 2597 *) Various modifications and fixes to SSL/TLS cipher string 2598 handling. For ECC, the code now distinguishes between fixed ECDH 2599 with RSA certificates on the one hand and with ECDSA certificates 2600 on the other hand, since these are separate ciphersuites. The 2601 unused code for Fortezza ciphersuites has been removed. 2602 2603 For consistency with EDH, ephemeral ECDH is now called "EECDH" 2604 (not "ECDHE"). For consistency with the code for DH 2605 certificates, use of ECDH certificates is now considered ECDH 2606 authentication, not RSA or ECDSA authentication (the latter is 2607 merely the CA's signing algorithm and not actively used in the 2608 protocol). 2609 2610 The temporary ciphersuite alias "ECCdraft" is no longer 2611 available, and ECC ciphersuites are no longer excluded from "ALL" 2612 and "DEFAULT". The following aliases now exist for RFC 4492 2613 ciphersuites, most of these by analogy with the DH case: 2614 2615 kECDHr - ECDH cert, signed with RSA 2616 kECDHe - ECDH cert, signed with ECDSA 2617 kECDH - ECDH cert (signed with either RSA or ECDSA) 2618 kEECDH - ephemeral ECDH 2619 ECDH - ECDH cert or ephemeral ECDH 2620 2621 aECDH - ECDH cert 2622 aECDSA - ECDSA cert 2623 ECDSA - ECDSA cert 2624 2625 AECDH - anonymous ECDH 2626 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 2627 2628 [Bodo Moeller] 2629 2630 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 2631 Use correct micalg parameters depending on digest(s) in signed message. 2632 [Steve Henson] 2633 2634 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 2635 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 2636 [Steve Henson] 2637 2638 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 2639 an engine to register a method. Add ENGINE lookups for methods and 2640 functional reference processing. 2641 [Steve Henson] 2642 2643 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 2644 EVP_{Sign,Verify}* which allow an application to customise the signature 2645 process. 2646 [Steve Henson] 2647 2648 *) New -resign option to smime utility. This adds one or more signers 2649 to an existing PKCS#7 signedData structure. Also -md option to use an 2650 alternative message digest algorithm for signing. 2651 [Steve Henson] 2652 2653 *) Tidy up PKCS#7 routines and add new functions to make it easier to 2654 create PKCS7 structures containing multiple signers. Update smime 2655 application to support multiple signers. 2656 [Steve Henson] 2657 2658 *) New -macalg option to pkcs12 utility to allow setting of an alternative 2659 digest MAC. 2660 [Steve Henson] 2661 2662 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 2663 Reorganize PBE internals to lookup from a static table using NIDs, 2664 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 2665 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 2666 PRF which will be automatically used with PBES2. 2667 [Steve Henson] 2668 2669 *) Replace the algorithm specific calls to generate keys in "req" with the 2670 new API. 2671 [Steve Henson] 2672 2673 *) Update PKCS#7 enveloped data routines to use new API. This is now 2674 supported by any public key method supporting the encrypt operation. A 2675 ctrl is added to allow the public key algorithm to examine or modify 2676 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 2677 a no op. 2678 [Steve Henson] 2679 2680 *) Add a ctrl to asn1 method to allow a public key algorithm to express 2681 a default digest type to use. In most cases this will be SHA1 but some 2682 algorithms (such as GOST) need to specify an alternative digest. The 2683 return value indicates how strong the prefernce is 1 means optional and 2684 2 is mandatory (that is it is the only supported type). Modify 2685 ASN1_item_sign() to accept a NULL digest argument to indicate it should 2686 use the default md. Update openssl utilities to use the default digest 2687 type for signing if it is not explicitly indicated. 2688 [Steve Henson] 2689 2690 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 2691 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 2692 signing method from the key type. This effectively removes the link 2693 between digests and public key types. 2694 [Steve Henson] 2695 2696 *) Add an OID cross reference table and utility functions. Its purpose is to 2697 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 2698 rsaEncryption. This will allow some of the algorithm specific hackery 2699 needed to use the correct OID to be removed. 2700 [Steve Henson] 2701 2702 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 2703 structures for PKCS7_sign(). They are now set up by the relevant public 2704 key ASN1 method. 2705 [Steve Henson] 2706 2707 *) Add provisional EC pkey method with support for ECDSA and ECDH. 2708 [Steve Henson] 2709 2710 *) Add support for key derivation (agreement) in the API, DH method and 2711 pkeyutl. 2712 [Steve Henson] 2713 2714 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 2715 public and private key formats. As a side effect these add additional 2716 command line functionality not previously available: DSA signatures can be 2717 generated and verified using pkeyutl and DH key support and generation in 2718 pkey, genpkey. 2719 [Steve Henson] 2720 2721 *) BeOS support. 2722 [Oliver Tappe <zooey@hirschkaefer.de>] 2723 2724 *) New make target "install_html_docs" installs HTML renditions of the 2725 manual pages. 2726 [Oliver Tappe <zooey@hirschkaefer.de>] 2727 2728 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 2729 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 2730 support key and parameter generation and add initial key generation 2731 functionality for RSA. 2732 [Steve Henson] 2733 2734 *) Add functions for main EVP_PKEY_method operations. The undocumented 2735 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 2736 EVP_PKEY_{encrypt,decrypt}_old. 2737 [Steve Henson] 2738 2739 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 2740 key API, doesn't do much yet. 2741 [Steve Henson] 2742 2743 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 2744 public key algorithms. New option to openssl utility: 2745 "list-public-key-algorithms" to print out info. 2746 [Steve Henson] 2747 2748 *) Implement the Supported Elliptic Curves Extension for 2749 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2750 [Douglas Stebila] 2751 2752 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 2753 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 2754 [Steve Henson] 2755 2756 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 2757 utilities such as rsa, dsa, dsaparam etc except they process any key 2758 type. 2759 [Steve Henson] 2760 2761 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 2762 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 2763 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 2764 structure. 2765 [Steve Henson] 2766 2767 *) Initial support for pluggable public key ASN1. 2768 De-spaghettify the public key ASN1 handling. Move public and private 2769 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 2770 algorithm specific handling to a single module within the relevant 2771 algorithm directory. Add functions to allow (near) opaque processing 2772 of public and private key structures. 2773 [Steve Henson] 2774 2775 *) Implement the Supported Point Formats Extension for 2776 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2777 [Douglas Stebila] 2778 2779 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 2780 for the psk identity [hint] and the psk callback functions to the 2781 SSL_SESSION, SSL and SSL_CTX structure. 2782 2783 New ciphersuites: 2784 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 2785 PSK-AES256-CBC-SHA 2786 2787 New functions: 2788 SSL_CTX_use_psk_identity_hint 2789 SSL_get_psk_identity_hint 2790 SSL_get_psk_identity 2791 SSL_use_psk_identity_hint 2792 2793 [Mika Kousa and Pasi Eronen of Nokia Corporation] 2794 2795 *) Add RFC 3161 compliant time stamp request creation, response generation 2796 and response verification functionality. 2797 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project] 2798 2799 *) Add initial support for TLS extensions, specifically for the server_name 2800 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2801 have new members for a host name. The SSL data structure has an 2802 additional member SSL_CTX *initial_ctx so that new sessions can be 2803 stored in that context to allow for session resumption, even after the 2804 SSL has been switched to a new SSL_CTX in reaction to a client's 2805 server_name extension. 2806 2807 New functions (subject to change): 2808 2809 SSL_get_servername() 2810 SSL_get_servername_type() 2811 SSL_set_SSL_CTX() 2812 2813 New CTRL codes and macros (subject to change): 2814 2815 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2816 - SSL_CTX_set_tlsext_servername_callback() 2817 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2818 - SSL_CTX_set_tlsext_servername_arg() 2819 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2820 2821 openssl s_client has a new '-servername ...' option. 2822 2823 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2824 '-key2 ...', '-servername_fatal' (subject to change). This allows 2825 testing the HostName extension for a specific single host name ('-cert' 2826 and '-key' remain fallbacks for handshakes without HostName 2827 negotiation). If the unrecogninzed_name alert has to be sent, this by 2828 default is a warning; it becomes fatal with the '-servername_fatal' 2829 option. 2830 2831 [Peter Sylvester, Remy Allais, Christophe Renou] 2832 2833 *) Whirlpool hash implementation is added. 2834 [Andy Polyakov] 2835 2836 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 2837 bn(64,32). Because of instruction set limitations it doesn't have 2838 any negative impact on performance. This was done mostly in order 2839 to make it possible to share assembler modules, such as bn_mul_mont 2840 implementations, between 32- and 64-bit builds without hassle. 2841 [Andy Polyakov] 2842 2843 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 2844 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 2845 macro. 2846 [Bodo Moeller] 2847 2848 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 2849 dedicated Montgomery multiplication procedure, is introduced. 2850 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 2851 "64-bit" performance on certain 32-bit targets. 2852 [Andy Polyakov] 2853 2854 *) New option SSL_OP_NO_COMP to disable use of compression selectively 2855 in SSL structures. New SSL ctrl to set maximum send fragment size. 2856 Save memory by seeting the I/O buffer sizes dynamically instead of 2857 using the maximum available value. 2858 [Steve Henson] 2859 2860 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 2861 in addition to the text details. 2862 [Bodo Moeller] 2863 2864 *) Very, very preliminary EXPERIMENTAL support for printing of general 2865 ASN1 structures. This currently produces rather ugly output and doesn't 2866 handle several customised structures at all. 2867 [Steve Henson] 2868 2869 *) Integrated support for PVK file format and some related formats such 2870 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 2871 these in the 'rsa' and 'dsa' utilities. 2872 [Steve Henson] 2873 2874 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 2875 [Steve Henson] 2876 2877 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 2878 place for the (very old) "NETSCAPE" format certificates which are now 2879 handled using new ASN1 code equivalents. 2880 [Steve Henson] 2881 2882 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 2883 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 2884 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 2885 [Nils Larsch] 2886 2887 *) Modify CRL distribution points extension code to print out previously 2888 unsupported fields. Enhance extension setting code to allow setting of 2889 all fields. 2890 [Steve Henson] 2891 2892 *) Add print and set support for Issuing Distribution Point CRL extension. 2893 [Steve Henson] 2894 2895 *) Change 'Configure' script to enable Camellia by default. 2896 [NTT] 2897 2898 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 2899 2900 *) When rejecting SSL/TLS records due to an incorrect version number, never 2901 update s->server with a new major version number. As of 2902 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 2903 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 2904 the previous behavior could result in a read attempt at NULL when 2905 receiving specific incorrect SSL/TLS records once record payload 2906 protection is active. (CVE-2010-0740) 2907 [Bodo Moeller, Adam Langley <agl@chromium.org>] 2908 2909 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 2910 could be crashed if the relevant tables were not present (e.g. chrooted). 2911 [Tomas Hoger <thoger@redhat.com>] 2912 2913 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 2914 2915 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 2916 [Martin Olsson, Neel Mehta] 2917 2918 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 2919 accommodate for stack sorting, always a write lock!). 2920 [Bodo Moeller] 2921 2922 *) On some versions of WIN32 Heap32Next is very slow. This can cause 2923 excessive delays in the RAND_poll(): over a minute. As a workaround 2924 include a time check in the inner Heap32Next loop too. 2925 [Steve Henson] 2926 2927 *) The code that handled flushing of data in SSL/TLS originally used the 2928 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 2929 the problem outlined in PR#1949. The fix suggested there however can 2930 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 2931 of Apache). So instead simplify the code to flush unconditionally. 2932 This should be fine since flushing with no data to flush is a no op. 2933 [Steve Henson] 2934 2935 *) Handle TLS versions 2.0 and later properly and correctly use the 2936 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 2937 off ancient servers have a habit of sticking around for a while... 2938 [Steve Henson] 2939 2940 *) Modify compression code so it frees up structures without using the 2941 ex_data callbacks. This works around a problem where some applications 2942 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 2943 restarting) then use compression (e.g. SSL with compression) later. 2944 This results in significant per-connection memory leaks and 2945 has caused some security issues including CVE-2008-1678 and 2946 CVE-2009-4355. 2947 [Steve Henson] 2948 2949 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 2950 change when encrypting or decrypting. 2951 [Bodo Moeller] 2952 2953 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 2954 connect and renegotiate with servers which do not support RI. 2955 Until RI is more widely deployed this option is enabled by default. 2956 [Steve Henson] 2957 2958 *) Add "missing" ssl ctrls to clear options and mode. 2959 [Steve Henson] 2960 2961 *) If client attempts to renegotiate and doesn't support RI respond with 2962 a no_renegotiation alert as required by RFC5746. Some renegotiating 2963 TLS clients will continue a connection gracefully when they receive 2964 the alert. Unfortunately OpenSSL mishandled this alert and would hang 2965 waiting for a server hello which it will never receive. Now we treat a 2966 received no_renegotiation alert as a fatal error. This is because 2967 applications requesting a renegotiation might well expect it to succeed 2968 and would have no code in place to handle the server denying it so the 2969 only safe thing to do is to terminate the connection. 2970 [Steve Henson] 2971 2972 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 2973 peer supports secure renegotiation and 0 otherwise. Print out peer 2974 renegotiation support in s_client/s_server. 2975 [Steve Henson] 2976 2977 *) Replace the highly broken and deprecated SPKAC certification method with 2978 the updated NID creation version. This should correctly handle UTF8. 2979 [Steve Henson] 2980 2981 *) Implement RFC5746. Re-enable renegotiation but require the extension 2982 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 2983 turns out to be a bad idea. It has been replaced by 2984 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 2985 SSL_CTX_set_options(). This is really not recommended unless you 2986 know what you are doing. 2987 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 2988 2989 *) Fixes to stateless session resumption handling. Use initial_ctx when 2990 issuing and attempting to decrypt tickets in case it has changed during 2991 servername handling. Use a non-zero length session ID when attempting 2992 stateless session resumption: this makes it possible to determine if 2993 a resumption has occurred immediately after receiving server hello 2994 (several places in OpenSSL subtly assume this) instead of later in 2995 the handshake. 2996 [Steve Henson] 2997 2998 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 2999 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 3000 fixes for a few places where the return code is not checked 3001 correctly. 3002 [Julia Lawall <julia@diku.dk>] 3003 3004 *) Add --strict-warnings option to Configure script to include devteam 3005 warnings in other configurations. 3006 [Steve Henson] 3007 3008 *) Add support for --libdir option and LIBDIR variable in makefiles. This 3009 makes it possible to install openssl libraries in locations which 3010 have names other than "lib", for example "/usr/lib64" which some 3011 systems need. 3012 [Steve Henson, based on patch from Jeremy Utley] 3013 3014 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 3015 X690 8.9.12 and can produce some misleading textual output of OIDs. 3016 [Steve Henson, reported by Dan Kaminsky] 3017 3018 *) Delete MD2 from algorithm tables. This follows the recommendation in 3019 several standards that it is not used in new applications due to 3020 several cryptographic weaknesses. For binary compatibility reasons 3021 the MD2 API is still compiled in by default. 3022 [Steve Henson] 3023 3024 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 3025 and restored. 3026 [Steve Henson] 3027 3028 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 3029 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 3030 clash. 3031 [Guenter <lists@gknw.net>] 3032 3033 *) Fix the server certificate chain building code to use X509_verify_cert(), 3034 it used to have an ad-hoc builder which was unable to cope with anything 3035 other than a simple chain. 3036 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 3037 3038 *) Don't check self signed certificate signatures in X509_verify_cert() 3039 by default (a flag can override this): it just wastes time without 3040 adding any security. As a useful side effect self signed root CAs 3041 with non-FIPS digests are now usable in FIPS mode. 3042 [Steve Henson] 3043 3044 *) In dtls1_process_out_of_seq_message() the check if the current message 3045 is already buffered was missing. For every new message was memory 3046 allocated, allowing an attacker to perform an denial of service attack 3047 with sending out of seq handshake messages until there is no memory 3048 left. Additionally every future messege was buffered, even if the 3049 sequence number made no sense and would be part of another handshake. 3050 So only messages with sequence numbers less than 10 in advance will be 3051 buffered. (CVE-2009-1378) 3052 [Robin Seggelmann, discovered by Daniel Mentz] 3053 3054 *) Records are buffered if they arrive with a future epoch to be 3055 processed after finishing the corresponding handshake. There is 3056 currently no limitation to this buffer allowing an attacker to perform 3057 a DOS attack with sending records with future epochs until there is no 3058 memory left. This patch adds the pqueue_size() function to detemine 3059 the size of a buffer and limits the record buffer to 100 entries. 3060 (CVE-2009-1377) 3061 [Robin Seggelmann, discovered by Daniel Mentz] 3062 3063 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 3064 parent structure is freed. (CVE-2009-1379) 3065 [Daniel Mentz] 3066 3067 *) Handle non-blocking I/O properly in SSL_shutdown() call. 3068 [Darryl Miles <darryl-mailinglists@netbauds.net>] 3069 3070 *) Add 2.5.4.* OIDs 3071 [Ilya O. <vrghost@gmail.com>] 3072 3073 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 3074 3075 *) Disable renegotiation completely - this fixes a severe security 3076 problem (CVE-2009-3555) at the cost of breaking all 3077 renegotiation. Renegotiation can be re-enabled by setting 3078 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 3079 run-time. This is really not recommended unless you know what 3080 you're doing. 3081 [Ben Laurie] 3082 3083 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 3084 3085 *) Don't set val to NULL when freeing up structures, it is freed up by 3086 underlying code. If sizeof(void *) > sizeof(long) this can result in 3087 zeroing past the valid field. (CVE-2009-0789) 3088 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 3089 3090 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 3091 checked correctly. This would allow some invalid signed attributes to 3092 appear to verify correctly. (CVE-2009-0591) 3093 [Ivan Nestlerode <inestlerode@us.ibm.com>] 3094 3095 *) Reject UniversalString and BMPString types with invalid lengths. This 3096 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 3097 a legal length. (CVE-2009-0590) 3098 [Steve Henson] 3099 3100 *) Set S/MIME signing as the default purpose rather than setting it 3101 unconditionally. This allows applications to override it at the store 3102 level. 3103 [Steve Henson] 3104 3105 *) Permit restricted recursion of ASN1 strings. This is needed in practice 3106 to handle some structures. 3107 [Steve Henson] 3108 3109 *) Improve efficiency of mem_gets: don't search whole buffer each time 3110 for a '\n' 3111 [Jeremy Shapiro <jnshapir@us.ibm.com>] 3112 3113 *) New -hex option for openssl rand. 3114 [Matthieu Herrb] 3115 3116 *) Print out UTF8String and NumericString when parsing ASN1. 3117 [Steve Henson] 3118 3119 *) Support NumericString type for name components. 3120 [Steve Henson] 3121 3122 *) Allow CC in the environment to override the automatically chosen 3123 compiler. Note that nothing is done to ensure flags work with the 3124 chosen compiler. 3125 [Ben Laurie] 3126 3127 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 3128 3129 *) Properly check EVP_VerifyFinal() and similar return values 3130 (CVE-2008-5077). 3131 [Ben Laurie, Bodo Moeller, Google Security Team] 3132 3133 *) Enable TLS extensions by default. 3134 [Ben Laurie] 3135 3136 *) Allow the CHIL engine to be loaded, whether the application is 3137 multithreaded or not. (This does not release the developer from the 3138 obligation to set up the dynamic locking callbacks.) 3139 [Sander Temme <sander@temme.net>] 3140 3141 *) Use correct exit code if there is an error in dgst command. 3142 [Steve Henson; problem pointed out by Roland Dirlewanger] 3143 3144 *) Tweak Configure so that you need to say "experimental-jpake" to enable 3145 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 3146 [Bodo Moeller] 3147 3148 *) Add experimental JPAKE support, including demo authentication in 3149 s_client and s_server. 3150 [Ben Laurie] 3151 3152 *) Set the comparison function in v3_addr_canonize(). 3153 [Rob Austein <sra@hactrn.net>] 3154 3155 *) Add support for XMPP STARTTLS in s_client. 3156 [Philip Paeps <philip@freebsd.org>] 3157 3158 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 3159 to ensure that even with this option, only ciphersuites in the 3160 server's preference list will be accepted. (Note that the option 3161 applies only when resuming a session, so the earlier behavior was 3162 just about the algorithm choice for symmetric cryptography.) 3163 [Bodo Moeller] 3164 3165 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 3166 3167 *) Fix NULL pointer dereference if a DTLS server received 3168 ChangeCipherSpec as first record (CVE-2009-1386). 3169 [PR #1679] 3170 3171 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 3172 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 3173 [Nagendra Modadugu] 3174 3175 *) The fix in 0.9.8c that supposedly got rid of unsafe 3176 double-checked locking was incomplete for RSA blinding, 3177 addressing just one layer of what turns out to have been 3178 doubly unsafe triple-checked locking. 3179 3180 So now fix this for real by retiring the MONT_HELPER macro 3181 in crypto/rsa/rsa_eay.c. 3182 3183 [Bodo Moeller; problem pointed out by Marius Schilder] 3184 3185 *) Various precautionary measures: 3186 3187 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 3188 3189 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 3190 (NB: This would require knowledge of the secret session ticket key 3191 to exploit, in which case you'd be SOL either way.) 3192 3193 - Change bn_nist.c so that it will properly handle input BIGNUMs 3194 outside the expected range. 3195 3196 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 3197 builds. 3198 3199 [Neel Mehta, Bodo Moeller] 3200 3201 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 3202 the load fails. Useful for distros. 3203 [Ben Laurie and the FreeBSD team] 3204 3205 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 3206 [Steve Henson] 3207 3208 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 3209 [Huang Ying] 3210 3211 *) Expand ENGINE to support engine supplied SSL client certificate functions. 3212 3213 This work was sponsored by Logica. 3214 [Steve Henson] 3215 3216 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 3217 keystores. Support for SSL/TLS client authentication too. 3218 Not compiled unless enable-capieng specified to Configure. 3219 3220 This work was sponsored by Logica. 3221 [Steve Henson] 3222 3223 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 3224 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 3225 attribute creation routines such as certifcate requests and PKCS#12 3226 files. 3227 [Steve Henson] 3228 3229 Changes between 0.9.8g and 0.9.8h [28 May 2008] 3230 3231 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 3232 handshake which could lead to a cilent crash as found using the 3233 Codenomicon TLS test suite (CVE-2008-1672) 3234 [Steve Henson, Mark Cox] 3235 3236 *) Fix double free in TLS server name extensions which could lead to 3237 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 3238 [Joe Orton] 3239 3240 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 3241 3242 Clear the error queue to ensure that error entries left from 3243 older function calls do not interfere with the correct operation. 3244 [Lutz Jaenicke, Erik de Castro Lopo] 3245 3246 *) Remove root CA certificates of commercial CAs: 3247 3248 The OpenSSL project does not recommend any specific CA and does not 3249 have any policy with respect to including or excluding any CA. 3250 Therefore it does not make any sense to ship an arbitrary selection 3251 of root CA certificates with the OpenSSL software. 3252 [Lutz Jaenicke] 3253 3254 *) RSA OAEP patches to fix two separate invalid memory reads. 3255 The first one involves inputs when 'lzero' is greater than 3256 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 3257 before the beginning of from). The second one involves inputs where 3258 the 'db' section contains nothing but zeroes (there is a one-byte 3259 invalid read after the end of 'db'). 3260 [Ivan Nestlerode <inestlerode@us.ibm.com>] 3261 3262 *) Partial backport from 0.9.9-dev: 3263 3264 Introduce bn_mul_mont (dedicated Montgomery multiplication 3265 procedure) as a candidate for BIGNUM assembler implementation. 3266 While 0.9.9-dev uses assembler for various architectures, only 3267 x86_64 is available by default here in the 0.9.8 branch, and 3268 32-bit x86 is available through a compile-time setting. 3269 3270 To try the 32-bit x86 assembler implementation, use Configure 3271 option "enable-montasm" (which exists only for this backport). 3272 3273 As "enable-montasm" for 32-bit x86 disclaims code stability 3274 anyway, in this constellation we activate additional code 3275 backported from 0.9.9-dev for further performance improvements, 3276 namely BN_from_montgomery_word. (To enable this otherwise, 3277 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 3278 3279 [Andy Polyakov (backport partially by Bodo Moeller)] 3280 3281 *) Add TLS session ticket callback. This allows an application to set 3282 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 3283 values. This is useful for key rollover for example where several key 3284 sets may exist with different names. 3285 [Steve Henson] 3286 3287 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 3288 This was broken until now in 0.9.8 releases, such that the only way 3289 a registered ENGINE could be used (assuming it initialises 3290 successfully on the host) was to explicitly set it as the default 3291 for the relevant algorithms. This is in contradiction with 0.9.7 3292 behaviour and the documentation. With this fix, when an ENGINE is 3293 registered into a given algorithm's table of implementations, the 3294 'uptodate' flag is reset so that auto-discovery will be used next 3295 time a new context for that algorithm attempts to select an 3296 implementation. 3297 [Ian Lister (tweaked by Geoff Thorpe)] 3298 3299 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 3300 implemention in the following ways: 3301 3302 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 3303 hard coded. 3304 3305 Lack of BER streaming support means one pass streaming processing is 3306 only supported if data is detached: setting the streaming flag is 3307 ignored for embedded content. 3308 3309 CMS support is disabled by default and must be explicitly enabled 3310 with the enable-cms configuration option. 3311 [Steve Henson] 3312 3313 *) Update the GMP engine glue to do direct copies between BIGNUM and 3314 mpz_t when openssl and GMP use the same limb size. Otherwise the 3315 existing "conversion via a text string export" trick is still used. 3316 [Paul Sheer <paulsheer@gmail.com>] 3317 3318 *) Zlib compression BIO. This is a filter BIO which compressed and 3319 uncompresses any data passed through it. 3320 [Steve Henson] 3321 3322 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 3323 RFC3394 compatible AES key wrapping. 3324 [Steve Henson] 3325 3326 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 3327 sets string data without copying. X509_ALGOR_set0() and 3328 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 3329 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 3330 from an X509_ATTRIBUTE structure optionally checking it occurs only 3331 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 3332 data. 3333 [Steve Henson] 3334 3335 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 3336 to get the expected BN_FLG_CONSTTIME behavior. 3337 [Bodo Moeller (Google)] 3338 3339 *) Netware support: 3340 3341 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 3342 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 3343 - added some more tests to do_tests.pl 3344 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 3345 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 3346 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 3347 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 3348 - various changes to netware.pl to enable gcc-cross builds on Win32 3349 platform 3350 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 3351 - various changes to fix missing prototype warnings 3352 - fixed x86nasm.pl to create correct asm files for NASM COFF output 3353 - added AES, WHIRLPOOL and CPUID assembler code to build files 3354 - added missing AES assembler make rules to mk1mf.pl 3355 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 3356 [Guenter Knauf <eflash@gmx.net>] 3357 3358 *) Implement certificate status request TLS extension defined in RFC3546. 3359 A client can set the appropriate parameters and receive the encoded 3360 OCSP response via a callback. A server can query the supplied parameters 3361 and set the encoded OCSP response in the callback. Add simplified examples 3362 to s_client and s_server. 3363 [Steve Henson] 3364 3365 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 3366 3367 *) Fix various bugs: 3368 + Binary incompatibility of ssl_ctx_st structure 3369 + DTLS interoperation with non-compliant servers 3370 + Don't call get_session_cb() without proposed session 3371 + Fix ia64 assembler code 3372 [Andy Polyakov, Steve Henson] 3373 3374 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 3375 3376 *) DTLS Handshake overhaul. There were longstanding issues with 3377 OpenSSL DTLS implementation, which were making it impossible for 3378 RFC 4347 compliant client to communicate with OpenSSL server. 3379 Unfortunately just fixing these incompatibilities would "cut off" 3380 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 3381 server keeps tolerating non RFC compliant syntax. The opposite is 3382 not true, 0.9.8f client can not communicate with earlier server. 3383 This update even addresses CVE-2007-4995. 3384 [Andy Polyakov] 3385 3386 *) Changes to avoid need for function casts in OpenSSL: some compilers 3387 (gcc 4.2 and later) reject their use. 3388 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 3389 Steve Henson] 3390 3391 *) Add RFC4507 support to OpenSSL. This includes the corrections in 3392 RFC4507bis. The encrypted ticket format is an encrypted encoded 3393 SSL_SESSION structure, that way new session features are automatically 3394 supported. 3395 3396 If a client application caches session in an SSL_SESSION structure 3397 support is transparent because tickets are now stored in the encoded 3398 SSL_SESSION. 3399 3400 The SSL_CTX structure automatically generates keys for ticket 3401 protection in servers so again support should be possible 3402 with no application modification. 3403 3404 If a client or server wishes to disable RFC4507 support then the option 3405 SSL_OP_NO_TICKET can be set. 3406 3407 Add a TLS extension debugging callback to allow the contents of any client 3408 or server extensions to be examined. 3409 3410 This work was sponsored by Google. 3411 [Steve Henson] 3412 3413 *) Add initial support for TLS extensions, specifically for the server_name 3414 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 3415 have new members for a host name. The SSL data structure has an 3416 additional member SSL_CTX *initial_ctx so that new sessions can be 3417 stored in that context to allow for session resumption, even after the 3418 SSL has been switched to a new SSL_CTX in reaction to a client's 3419 server_name extension. 3420 3421 New functions (subject to change): 3422 3423 SSL_get_servername() 3424 SSL_get_servername_type() 3425 SSL_set_SSL_CTX() 3426 3427 New CTRL codes and macros (subject to change): 3428 3429 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 3430 - SSL_CTX_set_tlsext_servername_callback() 3431 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 3432 - SSL_CTX_set_tlsext_servername_arg() 3433 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 3434 3435 openssl s_client has a new '-servername ...' option. 3436 3437 openssl s_server has new options '-servername_host ...', '-cert2 ...', 3438 '-key2 ...', '-servername_fatal' (subject to change). This allows 3439 testing the HostName extension for a specific single host name ('-cert' 3440 and '-key' remain fallbacks for handshakes without HostName 3441 negotiation). If the unrecogninzed_name alert has to be sent, this by 3442 default is a warning; it becomes fatal with the '-servername_fatal' 3443 option. 3444 3445 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 3446 3447 *) Add AES and SSE2 assembly language support to VC++ build. 3448 [Steve Henson] 3449 3450 *) Mitigate attack on final subtraction in Montgomery reduction. 3451 [Andy Polyakov] 3452 3453 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 3454 (which previously caused an internal error). 3455 [Bodo Moeller] 3456 3457 *) Squeeze another 10% out of IGE mode when in != out. 3458 [Ben Laurie] 3459 3460 *) AES IGE mode speedup. 3461 [Dean Gaudet (Google)] 3462 3463 *) Add the Korean symmetric 128-bit cipher SEED (see 3464 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 3465 add SEED ciphersuites from RFC 4162: 3466 3467 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 3468 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 3469 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 3470 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 3471 3472 To minimize changes between patchlevels in the OpenSSL 0.9.8 3473 series, SEED remains excluded from compilation unless OpenSSL 3474 is configured with 'enable-seed'. 3475 [KISA, Bodo Moeller] 3476 3477 *) Mitigate branch prediction attacks, which can be practical if a 3478 single processor is shared, allowing a spy process to extract 3479 information. For detailed background information, see 3480 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 3481 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 3482 and Necessary Software Countermeasures"). The core of the change 3483 are new versions BN_div_no_branch() and 3484 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 3485 respectively, which are slower, but avoid the security-relevant 3486 conditional branches. These are automatically called by BN_div() 3487 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 3488 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 3489 remove a conditional branch. 3490 3491 BN_FLG_CONSTTIME is the new name for the previous 3492 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 3493 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 3494 in the exponent causes BN_mod_exp_mont() to use the alternative 3495 implementation in BN_mod_exp_mont_consttime().) The old name 3496 remains as a deprecated alias. 3497 3498 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 3499 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 3500 constant-time implementations for more than just exponentiation. 3501 Here too the old name is kept as a deprecated alias. 3502 3503 BN_BLINDING_new() will now use BN_dup() for the modulus so that 3504 the BN_BLINDING structure gets an independent copy of the 3505 modulus. This means that the previous "BIGNUM *m" argument to 3506 BN_BLINDING_new() and to BN_BLINDING_create_param() now 3507 essentially becomes "const BIGNUM *m", although we can't actually 3508 change this in the header file before 0.9.9. It allows 3509 RSA_setup_blinding() to use BN_with_flags() on the modulus to 3510 enable BN_FLG_CONSTTIME. 3511 3512 [Matthew D Wood (Intel Corp)] 3513 3514 *) In the SSL/TLS server implementation, be strict about session ID 3515 context matching (which matters if an application uses a single 3516 external cache for different purposes). Previously, 3517 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 3518 set. This did ensure strict client verification, but meant that, 3519 with applications using a single external cache for quite 3520 different requirements, clients could circumvent ciphersuite 3521 restrictions for a given session ID context by starting a session 3522 in a different context. 3523 [Bodo Moeller] 3524 3525 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3526 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3527 authentication-only ciphersuites. 3528 [Bodo Moeller] 3529 3530 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 3531 not complete and could lead to a possible single byte overflow 3532 (CVE-2007-5135) [Ben Laurie] 3533 3534 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 3535 3536 *) Since AES128 and AES256 (and similarly Camellia128 and 3537 Camellia256) share a single mask bit in the logic of 3538 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3539 kludge to work properly if AES128 is available and AES256 isn't 3540 (or if Camellia128 is available and Camellia256 isn't). 3541 [Victor Duchovni] 3542 3543 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 3544 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 3545 When a point or a seed is encoded in a BIT STRING, we need to 3546 prevent the removal of trailing zero bits to get the proper DER 3547 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 3548 of a NamedBitList, for which trailing 0 bits need to be removed.) 3549 [Bodo Moeller] 3550 3551 *) Have SSL/TLS server implementation tolerate "mismatched" record 3552 protocol version while receiving ClientHello even if the 3553 ClientHello is fragmented. (The server can't insist on the 3554 particular protocol version it has chosen before the ServerHello 3555 message has informed the client about his choice.) 3556 [Bodo Moeller] 3557 3558 *) Add RFC 3779 support. 3559 [Rob Austein for ARIN, Ben Laurie] 3560 3561 *) Load error codes if they are not already present instead of using a 3562 static variable. This allows them to be cleanly unloaded and reloaded. 3563 Improve header file function name parsing. 3564 [Steve Henson] 3565 3566 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 3567 or CAPABILITY handshake as required by RFCs. 3568 [Goetz Babin-Ebell] 3569 3570 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 3571 3572 *) Introduce limits to prevent malicious keys being able to 3573 cause a denial of service. (CVE-2006-2940) 3574 [Steve Henson, Bodo Moeller] 3575 3576 *) Fix ASN.1 parsing of certain invalid structures that can result 3577 in a denial of service. (CVE-2006-2937) [Steve Henson] 3578 3579 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3580 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3581 3582 *) Fix SSL client code which could crash if connecting to a 3583 malicious SSLv2 server. (CVE-2006-4343) 3584 [Tavis Ormandy and Will Drewry, Google Security Team] 3585 3586 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 3587 match only those. Before that, "AES256-SHA" would be interpreted 3588 as a pattern and match "AES128-SHA" too (since AES128-SHA got 3589 the same strength classification in 0.9.7h) as we currently only 3590 have a single AES bit in the ciphersuite description bitmap. 3591 That change, however, also applied to ciphersuite strings such as 3592 "RC4-MD5" that intentionally matched multiple ciphersuites -- 3593 namely, SSL 2.0 ciphersuites in addition to the more common ones 3594 from SSL 3.0/TLS 1.0. 3595 3596 So we change the selection algorithm again: Naming an explicit 3597 ciphersuite selects this one ciphersuite, and any other similar 3598 ciphersuite (same bitmap) from *other* protocol versions. 3599 Thus, "RC4-MD5" again will properly select both the SSL 2.0 3600 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 3601 3602 Since SSL 2.0 does not have any ciphersuites for which the 3603 128/256 bit distinction would be relevant, this works for now. 3604 The proper fix will be to use different bits for AES128 and 3605 AES256, which would have avoided the problems from the beginning; 3606 however, bits are scarce, so we can only do this in a new release 3607 (not just a patchlevel) when we can change the SSL_CIPHER 3608 definition to split the single 'unsigned long mask' bitmap into 3609 multiple values to extend the available space. 3610 3611 [Bodo Moeller] 3612 3613 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 3614 3615 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3616 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3617 3618 *) Add AES IGE and biIGE modes. 3619 [Ben Laurie] 3620 3621 *) Change the Unix randomness entropy gathering to use poll() when 3622 possible instead of select(), since the latter has some 3623 undesirable limitations. 3624 [Darryl Miles via Richard Levitte and Bodo Moeller] 3625 3626 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 3627 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 3628 cannot be implicitly activated as part of, e.g., the "AES" alias. 3629 However, please upgrade to OpenSSL 0.9.9[-dev] for 3630 non-experimental use of the ECC ciphersuites to get TLS extension 3631 support, which is required for curve and point format negotiation 3632 to avoid potential handshake problems. 3633 [Bodo Moeller] 3634 3635 *) Disable rogue ciphersuites: 3636 3637 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3638 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3639 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3640 3641 The latter two were purportedly from 3642 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3643 appear there. 3644 3645 Also deactivate the remaining ciphersuites from 3646 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3647 unofficial, and the ID has long expired. 3648 [Bodo Moeller] 3649 3650 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3651 dual-core machines) and other potential thread-safety issues. 3652 [Bodo Moeller] 3653 3654 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 3655 versions), which is now available for royalty-free use 3656 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 3657 Also, add Camellia TLS ciphersuites from RFC 4132. 3658 3659 To minimize changes between patchlevels in the OpenSSL 0.9.8 3660 series, Camellia remains excluded from compilation unless OpenSSL 3661 is configured with 'enable-camellia'. 3662 [NTT] 3663 3664 *) Disable the padding bug check when compression is in use. The padding 3665 bug check assumes the first packet is of even length, this is not 3666 necessarily true if compresssion is enabled and can result in false 3667 positives causing handshake failure. The actual bug test is ancient 3668 code so it is hoped that implementations will either have fixed it by 3669 now or any which still have the bug do not support compression. 3670 [Steve Henson] 3671 3672 Changes between 0.9.8a and 0.9.8b [04 May 2006] 3673 3674 *) When applying a cipher rule check to see if string match is an explicit 3675 cipher suite and only match that one cipher suite if it is. 3676 [Steve Henson] 3677 3678 *) Link in manifests for VC++ if needed. 3679 [Austin Ziegler <halostatue@gmail.com>] 3680 3681 *) Update support for ECC-based TLS ciphersuites according to 3682 draft-ietf-tls-ecc-12.txt with proposed changes (but without 3683 TLS extensions, which are supported starting with the 0.9.9 3684 branch, not in the OpenSSL 0.9.8 branch). 3685 [Douglas Stebila] 3686 3687 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 3688 opaque EVP_CIPHER_CTX handling. 3689 [Steve Henson] 3690 3691 *) Fixes and enhancements to zlib compression code. We now only use 3692 "zlib1.dll" and use the default __cdecl calling convention on Win32 3693 to conform with the standards mentioned here: 3694 http://www.zlib.net/DLL_FAQ.txt 3695 Static zlib linking now works on Windows and the new --with-zlib-include 3696 --with-zlib-lib options to Configure can be used to supply the location 3697 of the headers and library. Gracefully handle case where zlib library 3698 can't be loaded. 3699 [Steve Henson] 3700 3701 *) Several fixes and enhancements to the OID generation code. The old code 3702 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 3703 handle numbers larger than ULONG_MAX, truncated printing and had a 3704 non standard OBJ_obj2txt() behaviour. 3705 [Steve Henson] 3706 3707 *) Add support for building of engines under engine/ as shared libraries 3708 under VC++ build system. 3709 [Steve Henson] 3710 3711 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 3712 Hopefully, we will not see any false combination of paths any more. 3713 [Richard Levitte] 3714 3715 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 3716 3717 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3718 (part of SSL_OP_ALL). This option used to disable the 3719 countermeasure against man-in-the-middle protocol-version 3720 rollback in the SSL 2.0 server implementation, which is a bad 3721 idea. (CVE-2005-2969) 3722 3723 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3724 for Information Security, National Institute of Advanced Industrial 3725 Science and Technology [AIST], Japan)] 3726 3727 *) Add two function to clear and return the verify parameter flags. 3728 [Steve Henson] 3729 3730 *) Keep cipherlists sorted in the source instead of sorting them at 3731 runtime, thus removing the need for a lock. 3732 [Nils Larsch] 3733 3734 *) Avoid some small subgroup attacks in Diffie-Hellman. 3735 [Nick Mathewson and Ben Laurie] 3736 3737 *) Add functions for well-known primes. 3738 [Nick Mathewson] 3739 3740 *) Extended Windows CE support. 3741 [Satoshi Nakamura and Andy Polyakov] 3742 3743 *) Initialize SSL_METHOD structures at compile time instead of during 3744 runtime, thus removing the need for a lock. 3745 [Steve Henson] 3746 3747 *) Make PKCS7_decrypt() work even if no certificate is supplied by 3748 attempting to decrypt each encrypted key in turn. Add support to 3749 smime utility. 3750 [Steve Henson] 3751 3752 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 3753 3754 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 3755 OpenSSL 0.9.8.] 3756 3757 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 3758 [Richard Levitte] 3759 3760 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 3761 key into the same file any more. 3762 [Richard Levitte] 3763 3764 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 3765 [Andy Polyakov] 3766 3767 *) Add -utf8 command line and config file option to 'ca'. 3768 [Stefan <stf@udoma.org] 3769 3770 *) Removed the macro des_crypt(), as it seems to conflict with some 3771 libraries. Use DES_crypt(). 3772 [Richard Levitte] 3773 3774 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 3775 involves renaming the source and generated shared-libs for 3776 both. The engines will accept the corrected or legacy ids 3777 ('ncipher' and '4758_cca' respectively) when binding. NB, 3778 this only applies when building 'shared'. 3779 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 3780 3781 *) Add attribute functions to EVP_PKEY structure. Modify 3782 PKCS12_create() to recognize a CSP name attribute and 3783 use it. Make -CSP option work again in pkcs12 utility. 3784 [Steve Henson] 3785 3786 *) Add new functionality to the bn blinding code: 3787 - automatic re-creation of the BN_BLINDING parameters after 3788 a fixed number of uses (currently 32) 3789 - add new function for parameter creation 3790 - introduce flags to control the update behaviour of the 3791 BN_BLINDING parameters 3792 - hide BN_BLINDING structure 3793 Add a second BN_BLINDING slot to the RSA structure to improve 3794 performance when a single RSA object is shared among several 3795 threads. 3796 [Nils Larsch] 3797 3798 *) Add support for DTLS. 3799 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 3800 3801 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 3802 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 3803 [Walter Goulet] 3804 3805 *) Remove buggy and incompletet DH cert support from 3806 ssl/ssl_rsa.c and ssl/s3_both.c 3807 [Nils Larsch] 3808 3809 *) Use SHA-1 instead of MD5 as the default digest algorithm for 3810 the apps/openssl applications. 3811 [Nils Larsch] 3812 3813 *) Compile clean with "-Wall -Wmissing-prototypes 3814 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 3815 DEBUG_SAFESTACK must also be set. 3816 [Ben Laurie] 3817 3818 *) Change ./Configure so that certain algorithms can be disabled by default. 3819 The new counterpiece to "no-xxx" is "enable-xxx". 3820 3821 The patented RC5 and MDC2 algorithms will now be disabled unless 3822 "enable-rc5" and "enable-mdc2", respectively, are specified. 3823 3824 (IDEA remains enabled despite being patented. This is because IDEA 3825 is frequently required for interoperability, and there is no license 3826 fee for non-commercial use. As before, "no-idea" can be used to 3827 avoid this algorithm.) 3828 3829 [Bodo Moeller] 3830 3831 *) Add processing of proxy certificates (see RFC 3820). This work was 3832 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 3833 EGEE (Enabling Grids for E-science in Europe). 3834 [Richard Levitte] 3835 3836 *) RC4 performance overhaul on modern architectures/implementations, such 3837 as Intel P4, IA-64 and AMD64. 3838 [Andy Polyakov] 3839 3840 *) New utility extract-section.pl. This can be used specify an alternative 3841 section number in a pod file instead of having to treat each file as 3842 a separate case in Makefile. This can be done by adding two lines to the 3843 pod file: 3844 3845 =for comment openssl_section:XXX 3846 3847 The blank line is mandatory. 3848 3849 [Steve Henson] 3850 3851 *) New arguments -certform, -keyform and -pass for s_client and s_server 3852 to allow alternative format key and certificate files and passphrase 3853 sources. 3854 [Steve Henson] 3855 3856 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 3857 update associated structures and add various utility functions. 3858 3859 Add new policy related verify parameters, include policy checking in 3860 standard verify code. Enhance 'smime' application with extra parameters 3861 to support policy checking and print out. 3862 [Steve Henson] 3863 3864 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 3865 Nehemiah processors. These extensions support AES encryption in hardware 3866 as well as RNG (though RNG support is currently disabled). 3867 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 3868 3869 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 3870 [Geoff Thorpe] 3871 3872 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 3873 [Andy Polyakov and a number of other people] 3874 3875 *) Improved PowerPC platform support. Most notably BIGNUM assembler 3876 implementation contributed by IBM. 3877 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 3878 3879 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 3880 exponent rather than 'unsigned long'. There is a corresponding change to 3881 the new 'rsa_keygen' element of the RSA_METHOD structure. 3882 [Jelte Jansen, Geoff Thorpe] 3883 3884 *) Functionality for creating the initial serial number file is now 3885 moved from CA.pl to the 'ca' utility with a new option -create_serial. 3886 3887 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 3888 number file to 1, which is bound to cause problems. To avoid 3889 the problems while respecting compatibility between different 0.9.7 3890 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 3891 CA.pl for serial number initialization. With the new release 0.9.8, 3892 we can fix the problem directly in the 'ca' utility.) 3893 [Steve Henson] 3894 3895 *) Reduced header interdepencies by declaring more opaque objects in 3896 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 3897 give fewer recursive includes, which could break lazy source code - so 3898 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 3899 developers should define this symbol when building and using openssl to 3900 ensure they track the recommended behaviour, interfaces, [etc], but 3901 backwards-compatible behaviour prevails when this isn't defined. 3902 [Geoff Thorpe] 3903 3904 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 3905 [Steve Henson] 3906 3907 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 3908 This will generate a random key of the appropriate length based on the 3909 cipher context. The EVP_CIPHER can provide its own random key generation 3910 routine to support keys of a specific form. This is used in the des and 3911 3des routines to generate a key of the correct parity. Update S/MIME 3912 code to use new functions and hence generate correct parity DES keys. 3913 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 3914 valid (weak or incorrect parity). 3915 [Steve Henson] 3916 3917 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 3918 as looking them up. This is useful when the verified structure may contain 3919 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 3920 present unless the new PKCS7_NO_CRL flag is asserted. 3921 [Steve Henson] 3922 3923 *) Extend ASN1 oid configuration module. It now additionally accepts the 3924 syntax: 3925 3926 shortName = some long name, 1.2.3.4 3927 [Steve Henson] 3928 3929 *) Reimplemented the BN_CTX implementation. There is now no more static 3930 limitation on the number of variables it can handle nor the depth of the 3931 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 3932 information can now expand as required, and rather than having a single 3933 static array of bignums, BN_CTX now uses a linked-list of such arrays 3934 allowing it to expand on demand whilst maintaining the usefulness of 3935 BN_CTX's "bundling". 3936 [Geoff Thorpe] 3937 3938 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 3939 to allow all RSA operations to function using a single BN_CTX. 3940 [Geoff Thorpe] 3941 3942 *) Preliminary support for certificate policy evaluation and checking. This 3943 is initially intended to pass the tests outlined in "Conformance Testing 3944 of Relying Party Client Certificate Path Processing Logic" v1.07. 3945 [Steve Henson] 3946 3947 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 3948 remained unused and not that useful. A variety of other little bignum 3949 tweaks and fixes have also been made continuing on from the audit (see 3950 below). 3951 [Geoff Thorpe] 3952 3953 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 3954 associated ASN1, EVP and SSL functions and old ASN1 macros. 3955 [Richard Levitte] 3956 3957 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 3958 and this should never fail. So the return value from the use of 3959 BN_set_word() (which can fail due to needless expansion) is now deprecated; 3960 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 3961 [Geoff Thorpe] 3962 3963 *) BN_CTX_get() should return zero-valued bignums, providing the same 3964 initialised value as BN_new(). 3965 [Geoff Thorpe, suggested by Ulf Möller] 3966 3967 *) Support for inhibitAnyPolicy certificate extension. 3968 [Steve Henson] 3969 3970 *) An audit of the BIGNUM code is underway, for which debugging code is 3971 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 3972 is considered valid when processing BIGNUMs, and causes execution to 3973 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 3974 further steps are taken to deliberately pollute unused data in BIGNUM 3975 structures to try and expose faulty code further on. For now, openssl will 3976 (in its default mode of operation) continue to tolerate the inconsistent 3977 forms that it has tolerated in the past, but authors and packagers should 3978 consider trying openssl and their own applications when compiled with 3979 these debugging symbols defined. It will help highlight potential bugs in 3980 their own code, and will improve the test coverage for OpenSSL itself. At 3981 some point, these tighter rules will become openssl's default to improve 3982 maintainability, though the assert()s and other overheads will remain only 3983 in debugging configurations. See bn.h for more details. 3984 [Geoff Thorpe, Nils Larsch, Ulf Möller] 3985 3986 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 3987 that can only be obtained through BN_CTX_new() (which implicitly 3988 initialises it). The presence of this function only made it possible 3989 to overwrite an existing structure (and cause memory leaks). 3990 [Geoff Thorpe] 3991 3992 *) Because of the callback-based approach for implementing LHASH as a 3993 template type, lh_insert() adds opaque objects to hash-tables and 3994 lh_doall() or lh_doall_arg() are typically used with a destructor callback 3995 to clean up those corresponding objects before destroying the hash table 3996 (and losing the object pointers). So some over-zealous constifications in 3997 LHASH have been relaxed so that lh_insert() does not take (nor store) the 3998 objects as "const" and the lh_doall[_arg] callback wrappers are not 3999 prototyped to have "const" restrictions on the object pointers they are 4000 given (and so aren't required to cast them away any more). 4001 [Geoff Thorpe] 4002 4003 *) The tmdiff.h API was so ugly and minimal that our own timing utility 4004 (speed) prefers to use its own implementation. The two implementations 4005 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 4006 its object type properly exposed (MS_TM) instead of casting to/from "char 4007 *". This may still change yet if someone realises MS_TM and "ms_time_***" 4008 aren't necessarily the greatest nomenclatures - but this is what was used 4009 internally to the implementation so I've used that for now. 4010 [Geoff Thorpe] 4011 4012 *) Ensure that deprecated functions do not get compiled when 4013 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 4014 the self-tests were still using deprecated key-generation functions so 4015 these have been updated also. 4016 [Geoff Thorpe] 4017 4018 *) Reorganise PKCS#7 code to separate the digest location functionality 4019 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 4020 New function PKCS7_set_digest() to set the digest type for PKCS#7 4021 digestedData type. Add additional code to correctly generate the 4022 digestedData type and add support for this type in PKCS7 initialization 4023 functions. 4024 [Steve Henson] 4025 4026 *) New function PKCS7_set0_type_other() this initializes a PKCS7 4027 structure of type "other". 4028 [Steve Henson] 4029 4030 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 4031 sure the loop does correctly stop and breaking ("division by zero") 4032 modulus operations are not performed. The (pre-generated) prime 4033 table crypto/bn/bn_prime.h was already correct, but it could not be 4034 re-generated on some platforms because of the "division by zero" 4035 situation in the script. 4036 [Ralf S. Engelschall] 4037 4038 *) Update support for ECC-based TLS ciphersuites according to 4039 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 4040 SHA-1 now is only used for "small" curves (where the 4041 representation of a field element takes up to 24 bytes); for 4042 larger curves, the field element resulting from ECDH is directly 4043 used as premaster secret. 4044 [Douglas Stebila (Sun Microsystems Laboratories)] 4045 4046 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 4047 curve secp160r1 to the tests. 4048 [Douglas Stebila (Sun Microsystems Laboratories)] 4049 4050 *) Add the possibility to load symbols globally with DSO. 4051 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 4052 4053 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 4054 control of the error stack. 4055 [Richard Levitte] 4056 4057 *) Add support for STORE in ENGINE. 4058 [Richard Levitte] 4059 4060 *) Add the STORE type. The intention is to provide a common interface 4061 to certificate and key stores, be they simple file-based stores, or 4062 HSM-type store, or LDAP stores, or... 4063 NOTE: The code is currently UNTESTED and isn't really used anywhere. 4064 [Richard Levitte] 4065 4066 *) Add a generic structure called OPENSSL_ITEM. This can be used to 4067 pass a list of arguments to any function as well as provide a way 4068 for a function to pass data back to the caller. 4069 [Richard Levitte] 4070 4071 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 4072 works like BUF_strdup() but can be used to duplicate a portion of 4073 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 4074 a memory area. 4075 [Richard Levitte] 4076 4077 *) Add the function sk_find_ex() which works like sk_find(), but will 4078 return an index to an element even if an exact match couldn't be 4079 found. The index is guaranteed to point at the element where the 4080 searched-for key would be inserted to preserve sorting order. 4081 [Richard Levitte] 4082 4083 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 4084 takes an extra flags argument for optional functionality. Currently, 4085 the following flags are defined: 4086 4087 OBJ_BSEARCH_VALUE_ON_NOMATCH 4088 This one gets OBJ_bsearch_ex() to return a pointer to the first 4089 element where the comparing function returns a negative or zero 4090 number. 4091 4092 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 4093 This one gets OBJ_bsearch_ex() to return a pointer to the first 4094 element where the comparing function returns zero. This is useful 4095 if there are more than one element where the comparing function 4096 returns zero. 4097 [Richard Levitte] 4098 4099 *) Make it possible to create self-signed certificates with 'openssl ca' 4100 in such a way that the self-signed certificate becomes part of the 4101 CA database and uses the same mechanisms for serial number generation 4102 as all other certificate signing. The new flag '-selfsign' enables 4103 this functionality. Adapt CA.sh and CA.pl.in. 4104 [Richard Levitte] 4105 4106 *) Add functionality to check the public key of a certificate request 4107 against a given private. This is useful to check that a certificate 4108 request can be signed by that key (self-signing). 4109 [Richard Levitte] 4110 4111 *) Make it possible to have multiple active certificates with the same 4112 subject in the CA index file. This is done only if the keyword 4113 'unique_subject' is set to 'no' in the main CA section (default 4114 if 'CA_default') of the configuration file. The value is saved 4115 with the database itself in a separate index attribute file, 4116 named like the index file with '.attr' appended to the name. 4117 [Richard Levitte] 4118 4119 *) Generate muti valued AVAs using '+' notation in config files for 4120 req and dirName. 4121 [Steve Henson] 4122 4123 *) Support for nameConstraints certificate extension. 4124 [Steve Henson] 4125 4126 *) Support for policyConstraints certificate extension. 4127 [Steve Henson] 4128 4129 *) Support for policyMappings certificate extension. 4130 [Steve Henson] 4131 4132 *) Make sure the default DSA_METHOD implementation only uses its 4133 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 4134 and change its own handlers to be NULL so as to remove unnecessary 4135 indirection. This lets alternative implementations fallback to the 4136 default implementation more easily. 4137 [Geoff Thorpe] 4138 4139 *) Support for directoryName in GeneralName related extensions 4140 in config files. 4141 [Steve Henson] 4142 4143 *) Make it possible to link applications using Makefile.shared. 4144 Make that possible even when linking against static libraries! 4145 [Richard Levitte] 4146 4147 *) Support for single pass processing for S/MIME signing. This now 4148 means that S/MIME signing can be done from a pipe, in addition 4149 cleartext signing (multipart/signed type) is effectively streaming 4150 and the signed data does not need to be all held in memory. 4151 4152 This is done with a new flag PKCS7_STREAM. When this flag is set 4153 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 4154 is done after the data is output (and digests calculated) in 4155 SMIME_write_PKCS7(). 4156 [Steve Henson] 4157 4158 *) Add full support for -rpath/-R, both in shared libraries and 4159 applications, at least on the platforms where it's known how 4160 to do it. 4161 [Richard Levitte] 4162 4163 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 4164 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 4165 will now compute a table of multiples of the generator that 4166 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 4167 faster (notably in the case of a single point multiplication, 4168 scalar * generator). 4169 [Nils Larsch, Bodo Moeller] 4170 4171 *) IPv6 support for certificate extensions. The various extensions 4172 which use the IP:a.b.c.d can now take IPv6 addresses using the 4173 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 4174 correctly. 4175 [Steve Henson] 4176 4177 *) Added an ENGINE that implements RSA by performing private key 4178 exponentiations with the GMP library. The conversions to and from 4179 GMP's mpz_t format aren't optimised nor are any montgomery forms 4180 cached, and on x86 it appears OpenSSL's own performance has caught up. 4181 However there are likely to be other architectures where GMP could 4182 provide a boost. This ENGINE is not built in by default, but it can be 4183 specified at Configure time and should be accompanied by the necessary 4184 linker additions, eg; 4185 ./config -DOPENSSL_USE_GMP -lgmp 4186 [Geoff Thorpe] 4187 4188 *) "openssl engine" will not display ENGINE/DSO load failure errors when 4189 testing availability of engines with "-t" - the old behaviour is 4190 produced by increasing the feature's verbosity with "-tt". 4191 [Geoff Thorpe] 4192 4193 *) ECDSA routines: under certain error conditions uninitialized BN objects 4194 could be freed. Solution: make sure initialization is performed early 4195 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 4196 via PR#459) 4197 [Lutz Jaenicke] 4198 4199 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 4200 and DH_METHOD (eg. by ENGINE implementations) to override the normal 4201 software implementations. For DSA and DH, parameter generation can 4202 also be overriden by providing the appropriate method callbacks. 4203 [Geoff Thorpe] 4204 4205 *) Change the "progress" mechanism used in key-generation and 4206 primality testing to functions that take a new BN_GENCB pointer in 4207 place of callback/argument pairs. The new API functions have "_ex" 4208 postfixes and the older functions are reimplemented as wrappers for 4209 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 4210 declarations of the old functions to help (graceful) attempts to 4211 migrate to the new functions. Also, the new key-generation API 4212 functions operate on a caller-supplied key-structure and return 4213 success/failure rather than returning a key or NULL - this is to 4214 help make "keygen" another member function of RSA_METHOD etc. 4215 4216 Example for using the new callback interface: 4217 4218 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 4219 void *my_arg = ...; 4220 BN_GENCB my_cb; 4221 4222 BN_GENCB_set(&my_cb, my_callback, my_arg); 4223 4224 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 4225 /* For the meaning of a, b in calls to my_callback(), see the 4226 * documentation of the function that calls the callback. 4227 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 4228 * my_callback should return 1 if it wants BN_is_prime_ex() 4229 * to continue, or 0 to stop. 4230 */ 4231 4232 [Geoff Thorpe] 4233 4234 *) Change the ZLIB compression method to be stateful, and make it 4235 available to TLS with the number defined in 4236 draft-ietf-tls-compression-04.txt. 4237 [Richard Levitte] 4238 4239 *) Add the ASN.1 structures and functions for CertificatePair, which 4240 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 4241 4242 CertificatePair ::= SEQUENCE { 4243 forward [0] Certificate OPTIONAL, 4244 reverse [1] Certificate OPTIONAL, 4245 -- at least one of the pair shall be present -- } 4246 4247 Also implement the PEM functions to read and write certificate 4248 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 4249 4250 This needed to be defined, mostly for the sake of the LDAP 4251 attribute crossCertificatePair, but may prove useful elsewhere as 4252 well. 4253 [Richard Levitte] 4254 4255 *) Make it possible to inhibit symlinking of shared libraries in 4256 Makefile.shared, for Cygwin's sake. 4257 [Richard Levitte] 4258 4259 *) Extend the BIGNUM API by creating a function 4260 void BN_set_negative(BIGNUM *a, int neg); 4261 and a macro that behave like 4262 int BN_is_negative(const BIGNUM *a); 4263 4264 to avoid the need to access 'a->neg' directly in applications. 4265 [Nils Larsch] 4266 4267 *) Implement fast modular reduction for pseudo-Mersenne primes 4268 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 4269 EC_GROUP_new_curve_GFp() will now automatically use this 4270 if applicable. 4271 [Nils Larsch <nla@trustcenter.de>] 4272 4273 *) Add new lock type (CRYPTO_LOCK_BN). 4274 [Bodo Moeller] 4275 4276 *) Change the ENGINE framework to automatically load engines 4277 dynamically from specific directories unless they could be 4278 found to already be built in or loaded. Move all the 4279 current engines except for the cryptodev one to a new 4280 directory engines/. 4281 The engines in engines/ are built as shared libraries if 4282 the "shared" options was given to ./Configure or ./config. 4283 Otherwise, they are inserted in libcrypto.a. 4284 /usr/local/ssl/engines is the default directory for dynamic 4285 engines, but that can be overriden at configure time through 4286 the usual use of --prefix and/or --openssldir, and at run 4287 time with the environment variable OPENSSL_ENGINES. 4288 [Geoff Thorpe and Richard Levitte] 4289 4290 *) Add Makefile.shared, a helper makefile to build shared 4291 libraries. Addapt Makefile.org. 4292 [Richard Levitte] 4293 4294 *) Add version info to Win32 DLLs. 4295 [Peter 'Luna' Runestig" <peter@runestig.com>] 4296 4297 *) Add new 'medium level' PKCS#12 API. Certificates and keys 4298 can be added using this API to created arbitrary PKCS#12 4299 files while avoiding the low level API. 4300 4301 New options to PKCS12_create(), key or cert can be NULL and 4302 will then be omitted from the output file. The encryption 4303 algorithm NIDs can be set to -1 for no encryption, the mac 4304 iteration count can be set to 0 to omit the mac. 4305 4306 Enhance pkcs12 utility by making the -nokeys and -nocerts 4307 options work when creating a PKCS#12 file. New option -nomac 4308 to omit the mac, NONE can be set for an encryption algorithm. 4309 New code is modified to use the enhanced PKCS12_create() 4310 instead of the low level API. 4311 [Steve Henson] 4312 4313 *) Extend ASN1 encoder to support indefinite length constructed 4314 encoding. This can output sequences tags and octet strings in 4315 this form. Modify pk7_asn1.c to support indefinite length 4316 encoding. This is experimental and needs additional code to 4317 be useful, such as an ASN1 bio and some enhanced streaming 4318 PKCS#7 code. 4319 4320 Extend template encode functionality so that tagging is passed 4321 down to the template encoder. 4322 [Steve Henson] 4323 4324 *) Let 'openssl req' fail if an argument to '-newkey' is not 4325 recognized instead of using RSA as a default. 4326 [Bodo Moeller] 4327 4328 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 4329 As these are not official, they are not included in "ALL"; 4330 the "ECCdraft" ciphersuite group alias can be used to select them. 4331 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 4332 4333 *) Add ECDH engine support. 4334 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 4335 4336 *) Add ECDH in new directory crypto/ecdh/. 4337 [Douglas Stebila (Sun Microsystems Laboratories)] 4338 4339 *) Let BN_rand_range() abort with an error after 100 iterations 4340 without success (which indicates a broken PRNG). 4341 [Bodo Moeller] 4342 4343 *) Change BN_mod_sqrt() so that it verifies that the input value 4344 is really the square of the return value. (Previously, 4345 BN_mod_sqrt would show GIGO behaviour.) 4346 [Bodo Moeller] 4347 4348 *) Add named elliptic curves over binary fields from X9.62, SECG, 4349 and WAP/WTLS; add OIDs that were still missing. 4350 4351 [Sheueling Chang Shantz and Douglas Stebila 4352 (Sun Microsystems Laboratories)] 4353 4354 *) Extend the EC library for elliptic curves over binary fields 4355 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 4356 New EC_METHOD: 4357 4358 EC_GF2m_simple_method 4359 4360 New API functions: 4361 4362 EC_GROUP_new_curve_GF2m 4363 EC_GROUP_set_curve_GF2m 4364 EC_GROUP_get_curve_GF2m 4365 EC_POINT_set_affine_coordinates_GF2m 4366 EC_POINT_get_affine_coordinates_GF2m 4367 EC_POINT_set_compressed_coordinates_GF2m 4368 4369 Point compression for binary fields is disabled by default for 4370 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 4371 enable it). 4372 4373 As binary polynomials are represented as BIGNUMs, various members 4374 of the EC_GROUP and EC_POINT data structures can be shared 4375 between the implementations for prime fields and binary fields; 4376 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 4377 are essentially identical to their ..._GFp counterparts. 4378 (For simplicity, the '..._GFp' prefix has been dropped from 4379 various internal method names.) 4380 4381 An internal 'field_div' method (similar to 'field_mul' and 4382 'field_sqr') has been added; this is used only for binary fields. 4383 4384 [Sheueling Chang Shantz and Douglas Stebila 4385 (Sun Microsystems Laboratories)] 4386 4387 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 4388 through methods ('mul', 'precompute_mult'). 4389 4390 The generic implementations (now internally called 'ec_wNAF_mul' 4391 and 'ec_wNAF_precomputed_mult') remain the default if these 4392 methods are undefined. 4393 4394 [Sheueling Chang Shantz and Douglas Stebila 4395 (Sun Microsystems Laboratories)] 4396 4397 *) New function EC_GROUP_get_degree, which is defined through 4398 EC_METHOD. For curves over prime fields, this returns the bit 4399 length of the modulus. 4400 4401 [Sheueling Chang Shantz and Douglas Stebila 4402 (Sun Microsystems Laboratories)] 4403 4404 *) New functions EC_GROUP_dup, EC_POINT_dup. 4405 (These simply call ..._new and ..._copy). 4406 4407 [Sheueling Chang Shantz and Douglas Stebila 4408 (Sun Microsystems Laboratories)] 4409 4410 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 4411 Polynomials are represented as BIGNUMs (where the sign bit is not 4412 used) in the following functions [macros]: 4413 4414 BN_GF2m_add 4415 BN_GF2m_sub [= BN_GF2m_add] 4416 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 4417 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 4418 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 4419 BN_GF2m_mod_inv 4420 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 4421 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 4422 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 4423 BN_GF2m_cmp [= BN_ucmp] 4424 4425 (Note that only the 'mod' functions are actually for fields GF(2^m). 4426 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 4427 4428 For some functions, an the irreducible polynomial defining a 4429 field can be given as an 'unsigned int[]' with strictly 4430 decreasing elements giving the indices of those bits that are set; 4431 i.e., p[] represents the polynomial 4432 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 4433 where 4434 p[0] > p[1] > ... > p[k] = 0. 4435 This applies to the following functions: 4436 4437 BN_GF2m_mod_arr 4438 BN_GF2m_mod_mul_arr 4439 BN_GF2m_mod_sqr_arr 4440 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 4441 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 4442 BN_GF2m_mod_exp_arr 4443 BN_GF2m_mod_sqrt_arr 4444 BN_GF2m_mod_solve_quad_arr 4445 BN_GF2m_poly2arr 4446 BN_GF2m_arr2poly 4447 4448 Conversion can be performed by the following functions: 4449 4450 BN_GF2m_poly2arr 4451 BN_GF2m_arr2poly 4452 4453 bntest.c has additional tests for binary polynomial arithmetic. 4454 4455 Two implementations for BN_GF2m_mod_div() are available. 4456 The default algorithm simply uses BN_GF2m_mod_inv() and 4457 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 4458 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 4459 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 4460 4461 [Sheueling Chang Shantz and Douglas Stebila 4462 (Sun Microsystems Laboratories)] 4463 4464 *) Add new error code 'ERR_R_DISABLED' that can be used when some 4465 functionality is disabled at compile-time. 4466 [Douglas Stebila <douglas.stebila@sun.com>] 4467 4468 *) Change default behaviour of 'openssl asn1parse' so that more 4469 information is visible when viewing, e.g., a certificate: 4470 4471 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 4472 mode the content of non-printable OCTET STRINGs is output in a 4473 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 4474 avoid the appearance of a printable string. 4475 [Nils Larsch <nla@trustcenter.de>] 4476 4477 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 4478 functions 4479 EC_GROUP_set_asn1_flag() 4480 EC_GROUP_get_asn1_flag() 4481 EC_GROUP_set_point_conversion_form() 4482 EC_GROUP_get_point_conversion_form() 4483 These control ASN1 encoding details: 4484 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 4485 has been set to OPENSSL_EC_NAMED_CURVE. 4486 - Points are encoded in uncompressed form by default; options for 4487 asn1_for are as for point2oct, namely 4488 POINT_CONVERSION_COMPRESSED 4489 POINT_CONVERSION_UNCOMPRESSED 4490 POINT_CONVERSION_HYBRID 4491 4492 Also add 'seed' and 'seed_len' members to EC_GROUP with access 4493 functions 4494 EC_GROUP_set_seed() 4495 EC_GROUP_get0_seed() 4496 EC_GROUP_get_seed_len() 4497 This is used only for ASN1 purposes (so far). 4498 [Nils Larsch <nla@trustcenter.de>] 4499 4500 *) Add 'field_type' member to EC_METHOD, which holds the NID 4501 of the appropriate field type OID. The new function 4502 EC_METHOD_get_field_type() returns this value. 4503 [Nils Larsch <nla@trustcenter.de>] 4504 4505 *) Add functions 4506 EC_POINT_point2bn() 4507 EC_POINT_bn2point() 4508 EC_POINT_point2hex() 4509 EC_POINT_hex2point() 4510 providing useful interfaces to EC_POINT_point2oct() and 4511 EC_POINT_oct2point(). 4512 [Nils Larsch <nla@trustcenter.de>] 4513 4514 *) Change internals of the EC library so that the functions 4515 EC_GROUP_set_generator() 4516 EC_GROUP_get_generator() 4517 EC_GROUP_get_order() 4518 EC_GROUP_get_cofactor() 4519 are implemented directly in crypto/ec/ec_lib.c and not dispatched 4520 to methods, which would lead to unnecessary code duplication when 4521 adding different types of curves. 4522 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 4523 4524 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 4525 arithmetic, and such that modified wNAFs are generated 4526 (which avoid length expansion in many cases). 4527 [Bodo Moeller] 4528 4529 *) Add a function EC_GROUP_check_discriminant() (defined via 4530 EC_METHOD) that verifies that the curve discriminant is non-zero. 4531 4532 Add a function EC_GROUP_check() that makes some sanity tests 4533 on a EC_GROUP, its generator and order. This includes 4534 EC_GROUP_check_discriminant(). 4535 [Nils Larsch <nla@trustcenter.de>] 4536 4537 *) Add ECDSA in new directory crypto/ecdsa/. 4538 4539 Add applications 'openssl ecparam' and 'openssl ecdsa' 4540 (these are based on 'openssl dsaparam' and 'openssl dsa'). 4541 4542 ECDSA support is also included in various other files across the 4543 library. Most notably, 4544 - 'openssl req' now has a '-newkey ecdsa:file' option; 4545 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 4546 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 4547 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 4548 them suitable for ECDSA where domain parameters must be 4549 extracted before the specific public key; 4550 - ECDSA engine support has been added. 4551 [Nils Larsch <nla@trustcenter.de>] 4552 4553 *) Include some named elliptic curves, and add OIDs from X9.62, 4554 SECG, and WAP/WTLS. Each curve can be obtained from the new 4555 function 4556 EC_GROUP_new_by_curve_name(), 4557 and the list of available named curves can be obtained with 4558 EC_get_builtin_curves(). 4559 Also add a 'curve_name' member to EC_GROUP objects, which can be 4560 accessed via 4561 EC_GROUP_set_curve_name() 4562 EC_GROUP_get_curve_name() 4563 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 4564 4565 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 4566 was actually never needed) and in BN_mul(). The removal in BN_mul() 4567 required a small change in bn_mul_part_recursive() and the addition 4568 of the functions bn_cmp_part_words(), bn_sub_part_words() and 4569 bn_add_part_words(), which do the same thing as bn_cmp_words(), 4570 bn_sub_words() and bn_add_words() except they take arrays with 4571 differing sizes. 4572 [Richard Levitte] 4573 4574 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 4575 4576 *) Cleanse PEM buffers before freeing them since they may contain 4577 sensitive data. 4578 [Benjamin Bennett <ben@psc.edu>] 4579 4580 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 4581 a ciphersuite string such as "DEFAULT:RSA" cannot enable 4582 authentication-only ciphersuites. 4583 [Bodo Moeller] 4584 4585 *) Since AES128 and AES256 share a single mask bit in the logic of 4586 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 4587 kludge to work properly if AES128 is available and AES256 isn't. 4588 [Victor Duchovni] 4589 4590 *) Expand security boundary to match 1.1.1 module. 4591 [Steve Henson] 4592 4593 *) Remove redundant features: hash file source, editing of test vectors 4594 modify fipsld to use external fips_premain.c signature. 4595 [Steve Henson] 4596 4597 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 4598 run algorithm test programs. 4599 [Steve Henson] 4600 4601 *) Make algorithm test programs more tolerant of whitespace. 4602 [Steve Henson] 4603 4604 *) Have SSL/TLS server implementation tolerate "mismatched" record 4605 protocol version while receiving ClientHello even if the 4606 ClientHello is fragmented. (The server can't insist on the 4607 particular protocol version it has chosen before the ServerHello 4608 message has informed the client about his choice.) 4609 [Bodo Moeller] 4610 4611 *) Load error codes if they are not already present instead of using a 4612 static variable. This allows them to be cleanly unloaded and reloaded. 4613 [Steve Henson] 4614 4615 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 4616 4617 *) Introduce limits to prevent malicious keys being able to 4618 cause a denial of service. (CVE-2006-2940) 4619 [Steve Henson, Bodo Moeller] 4620 4621 *) Fix ASN.1 parsing of certain invalid structures that can result 4622 in a denial of service. (CVE-2006-2937) [Steve Henson] 4623 4624 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 4625 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 4626 4627 *) Fix SSL client code which could crash if connecting to a 4628 malicious SSLv2 server. (CVE-2006-4343) 4629 [Tavis Ormandy and Will Drewry, Google Security Team] 4630 4631 *) Change ciphersuite string processing so that an explicit 4632 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 4633 will no longer include "AES128-SHA"), and any other similar 4634 ciphersuite (same bitmap) from *other* protocol versions (so that 4635 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 4636 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 4637 changes from 0.9.8b and 0.9.8d. 4638 [Bodo Moeller] 4639 4640 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 4641 4642 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 4643 (CVE-2006-4339) [Ben Laurie and Google Security Team] 4644 4645 *) Change the Unix randomness entropy gathering to use poll() when 4646 possible instead of select(), since the latter has some 4647 undesirable limitations. 4648 [Darryl Miles via Richard Levitte and Bodo Moeller] 4649 4650 *) Disable rogue ciphersuites: 4651 4652 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 4653 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 4654 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 4655 4656 The latter two were purportedly from 4657 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 4658 appear there. 4659 4660 Also deactive the remaining ciphersuites from 4661 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 4662 unofficial, and the ID has long expired. 4663 [Bodo Moeller] 4664 4665 *) Fix RSA blinding Heisenbug (problems sometimes occured on 4666 dual-core machines) and other potential thread-safety issues. 4667 [Bodo Moeller] 4668 4669 Changes between 0.9.7i and 0.9.7j [04 May 2006] 4670 4671 *) Adapt fipsld and the build system to link against the validated FIPS 4672 module in FIPS mode. 4673 [Steve Henson] 4674 4675 *) Fixes for VC++ 2005 build under Windows. 4676 [Steve Henson] 4677 4678 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 4679 from a Windows bash shell such as MSYS. It is autodetected from the 4680 "config" script when run from a VC++ environment. Modify standard VC++ 4681 build to use fipscanister.o from the GNU make build. 4682 [Steve Henson] 4683 4684 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 4685 4686 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 4687 The value now differs depending on if you build for FIPS or not. 4688 BEWARE! A program linked with a shared FIPSed libcrypto can't be 4689 safely run with a non-FIPSed libcrypto, as it may crash because of 4690 the difference induced by this change. 4691 [Andy Polyakov] 4692 4693 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 4694 4695 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 4696 (part of SSL_OP_ALL). This option used to disable the 4697 countermeasure against man-in-the-middle protocol-version 4698 rollback in the SSL 2.0 server implementation, which is a bad 4699 idea. (CVE-2005-2969) 4700 4701 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 4702 for Information Security, National Institute of Advanced Industrial 4703 Science and Technology [AIST], Japan)] 4704 4705 *) Minimal support for X9.31 signatures and PSS padding modes. This is 4706 mainly for FIPS compliance and not fully integrated at this stage. 4707 [Steve Henson] 4708 4709 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 4710 the exponentiation using a fixed-length exponent. (Otherwise, 4711 the information leaked through timing could expose the secret key 4712 after many signatures; cf. Bleichenbacher's attack on DSA with 4713 biased k.) 4714 [Bodo Moeller] 4715 4716 *) Make a new fixed-window mod_exp implementation the default for 4717 RSA, DSA, and DH private-key operations so that the sequence of 4718 squares and multiplies and the memory access pattern are 4719 independent of the particular secret key. This will mitigate 4720 cache-timing and potential related attacks. 4721 4722 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 4723 and this is automatically used by BN_mod_exp_mont() if the new flag 4724 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 4725 will use this BN flag for private exponents unless the flag 4726 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 4727 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 4728 4729 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 4730 4731 *) Change the client implementation for SSLv23_method() and 4732 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 4733 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 4734 (Previously, the SSL 2.0 backwards compatible Client Hello 4735 message format would be used even with SSL_OP_NO_SSLv2.) 4736 [Bodo Moeller] 4737 4738 *) Add support for smime-type MIME parameter in S/MIME messages which some 4739 clients need. 4740 [Steve Henson] 4741 4742 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 4743 a threadsafe manner. Modify rsa code to use new function and add calls 4744 to dsa and dh code (which had race conditions before). 4745 [Steve Henson] 4746 4747 *) Include the fixed error library code in the C error file definitions 4748 instead of fixing them up at runtime. This keeps the error code 4749 structures constant. 4750 [Steve Henson] 4751 4752 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 4753 4754 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 4755 OpenSSL 0.9.8.] 4756 4757 *) Fixes for newer kerberos headers. NB: the casts are needed because 4758 the 'length' field is signed on one version and unsigned on another 4759 with no (?) obvious way to tell the difference, without these VC++ 4760 complains. Also the "definition" of FAR (blank) is no longer included 4761 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 4762 some needed definitions. 4763 [Steve Henson] 4764 4765 *) Undo Cygwin change. 4766 [Ulf Möller] 4767 4768 *) Added support for proxy certificates according to RFC 3820. 4769 Because they may be a security thread to unaware applications, 4770 they must be explicitely allowed in run-time. See 4771 docs/HOWTO/proxy_certificates.txt for further information. 4772 [Richard Levitte] 4773 4774 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 4775 4776 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 4777 server and client random values. Previously 4778 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 4779 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 4780 4781 This change has negligible security impact because: 4782 4783 1. Server and client random values still have 24 bytes of pseudo random 4784 data. 4785 4786 2. Server and client random values are sent in the clear in the initial 4787 handshake. 4788 4789 3. The master secret is derived using the premaster secret (48 bytes in 4790 size for static RSA ciphersuites) as well as client server and random 4791 values. 4792 4793 The OpenSSL team would like to thank the UK NISCC for bringing this issue 4794 to our attention. 4795 4796 [Stephen Henson, reported by UK NISCC] 4797 4798 *) Use Windows randomness collection on Cygwin. 4799 [Ulf Möller] 4800 4801 *) Fix hang in EGD/PRNGD query when communication socket is closed 4802 prematurely by EGD/PRNGD. 4803 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014] 4804 4805 *) Prompt for pass phrases when appropriate for PKCS12 input format. 4806 [Steve Henson] 4807 4808 *) Back-port of selected performance improvements from development 4809 branch, as well as improved support for PowerPC platforms. 4810 [Andy Polyakov] 4811 4812 *) Add lots of checks for memory allocation failure, error codes to indicate 4813 failure and freeing up memory if a failure occurs. 4814 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 4815 4816 *) Add new -passin argument to dgst. 4817 [Steve Henson] 4818 4819 *) Perform some character comparisons of different types in X509_NAME_cmp: 4820 this is needed for some certificates that reencode DNs into UTF8Strings 4821 (in violation of RFC3280) and can't or wont issue name rollover 4822 certificates. 4823 [Steve Henson] 4824 4825 *) Make an explicit check during certificate validation to see that 4826 the CA setting in each certificate on the chain is correct. As a 4827 side effect always do the following basic checks on extensions, 4828 not just when there's an associated purpose to the check: 4829 4830 - if there is an unhandled critical extension (unless the user 4831 has chosen to ignore this fault) 4832 - if the path length has been exceeded (if one is set at all) 4833 - that certain extensions fit the associated purpose (if one has 4834 been given) 4835 [Richard Levitte] 4836 4837 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 4838 4839 *) Avoid a race condition when CRLs are checked in a multi threaded 4840 environment. This would happen due to the reordering of the revoked 4841 entries during signature checking and serial number lookup. Now the 4842 encoding is cached and the serial number sort performed under a lock. 4843 Add new STACK function sk_is_sorted(). 4844 [Steve Henson] 4845 4846 *) Add Delta CRL to the extension code. 4847 [Steve Henson] 4848 4849 *) Various fixes to s3_pkt.c so alerts are sent properly. 4850 [David Holmes <d.holmes@f5.com>] 4851 4852 *) Reduce the chances of duplicate issuer name and serial numbers (in 4853 violation of RFC3280) using the OpenSSL certificate creation utilities. 4854 This is done by creating a random 64 bit value for the initial serial 4855 number when a serial number file is created or when a self signed 4856 certificate is created using 'openssl req -x509'. The initial serial 4857 number file is created using 'openssl x509 -next_serial' in CA.pl 4858 rather than being initialized to 1. 4859 [Steve Henson] 4860 4861 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 4862 4863 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 4864 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 4865 [Joe Orton, Steve Henson] 4866 4867 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 4868 (CVE-2004-0112) 4869 [Joe Orton, Steve Henson] 4870 4871 *) Make it possible to have multiple active certificates with the same 4872 subject in the CA index file. This is done only if the keyword 4873 'unique_subject' is set to 'no' in the main CA section (default 4874 if 'CA_default') of the configuration file. The value is saved 4875 with the database itself in a separate index attribute file, 4876 named like the index file with '.attr' appended to the name. 4877 [Richard Levitte] 4878 4879 *) X509 verify fixes. Disable broken certificate workarounds when 4880 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 4881 keyUsage extension present. Don't accept CRLs with unhandled critical 4882 extensions: since verify currently doesn't process CRL extensions this 4883 rejects a CRL with *any* critical extensions. Add new verify error codes 4884 for these cases. 4885 [Steve Henson] 4886 4887 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 4888 A clarification of RFC2560 will require the use of OCTET STRINGs and 4889 some implementations cannot handle the current raw format. Since OpenSSL 4890 copies and compares OCSP nonces as opaque blobs without any attempt at 4891 parsing them this should not create any compatibility issues. 4892 [Steve Henson] 4893 4894 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 4895 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 4896 this HMAC (and other) operations are several times slower than OpenSSL 4897 < 0.9.7. 4898 [Steve Henson] 4899 4900 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 4901 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4902 4903 *) Use the correct content when signing type "other". 4904 [Steve Henson] 4905 4906 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 4907 4908 *) Fix various bugs revealed by running the NISCC test suite: 4909 4910 Stop out of bounds reads in the ASN1 code when presented with 4911 invalid tags (CVE-2003-0543 and CVE-2003-0544). 4912 4913 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 4914 4915 If verify callback ignores invalid public key errors don't try to check 4916 certificate signature with the NULL public key. 4917 4918 [Steve Henson] 4919 4920 *) New -ignore_err option in ocsp application to stop the server 4921 exiting on the first error in a request. 4922 [Steve Henson] 4923 4924 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 4925 if the server requested one: as stated in TLS 1.0 and SSL 3.0 4926 specifications. 4927 [Steve Henson] 4928 4929 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 4930 extra data after the compression methods not only for TLS 1.0 4931 but also for SSL 3.0 (as required by the specification). 4932 [Bodo Moeller; problem pointed out by Matthias Loepfe] 4933 4934 *) Change X509_certificate_type() to mark the key as exported/exportable 4935 when it's 512 *bits* long, not 512 bytes. 4936 [Richard Levitte] 4937 4938 *) Change AES_cbc_encrypt() so it outputs exact multiple of 4939 blocks during encryption. 4940 [Richard Levitte] 4941 4942 *) Various fixes to base64 BIO and non blocking I/O. On write 4943 flushes were not handled properly if the BIO retried. On read 4944 data was not being buffered properly and had various logic bugs. 4945 This also affects blocking I/O when the data being decoded is a 4946 certain size. 4947 [Steve Henson] 4948 4949 *) Various S/MIME bugfixes and compatibility changes: 4950 output correct application/pkcs7 MIME type if 4951 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 4952 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 4953 of files as .eml work). Correctly handle very long lines in MIME 4954 parser. 4955 [Steve Henson] 4956 4957 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 4958 4959 *) Countermeasure against the Klima-Pokorny-Rosa extension of 4960 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 4961 a protocol version number mismatch like a decryption error 4962 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 4963 [Bodo Moeller] 4964 4965 *) Turn on RSA blinding by default in the default implementation 4966 to avoid a timing attack. Applications that don't want it can call 4967 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 4968 They would be ill-advised to do so in most cases. 4969 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 4970 4971 *) Change RSA blinding code so that it works when the PRNG is not 4972 seeded (in this case, the secret RSA exponent is abused as 4973 an unpredictable seed -- if it is not unpredictable, there 4974 is no point in blinding anyway). Make RSA blinding thread-safe 4975 by remembering the creator's thread ID in rsa->blinding and 4976 having all other threads use local one-time blinding factors 4977 (this requires more computation than sharing rsa->blinding, but 4978 avoids excessive locking; and if an RSA object is not shared 4979 between threads, blinding will still be very fast). 4980 [Bodo Moeller] 4981 4982 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 4983 ENGINE as defaults for all supported algorithms irrespective of 4984 the 'flags' parameter. 'flags' is now honoured, so applications 4985 should make sure they are passing it correctly. 4986 [Geoff Thorpe] 4987 4988 *) Target "mingw" now allows native Windows code to be generated in 4989 the Cygwin environment as well as with the MinGW compiler. 4990 [Ulf Moeller] 4991 4992 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 4993 4994 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 4995 via timing by performing a MAC computation even if incorrrect 4996 block cipher padding has been found. This is a countermeasure 4997 against active attacks where the attacker has to distinguish 4998 between bad padding and a MAC verification error. (CVE-2003-0078) 4999 5000 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5001 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5002 Martin Vuagnoux (EPFL, Ilion)] 5003 5004 *) Make the no-err option work as intended. The intention with no-err 5005 is not to have the whole error stack handling routines removed from 5006 libcrypto, it's only intended to remove all the function name and 5007 reason texts, thereby removing some of the footprint that may not 5008 be interesting if those errors aren't displayed anyway. 5009 5010 NOTE: it's still possible for any application or module to have it's 5011 own set of error texts inserted. The routines are there, just not 5012 used by default when no-err is given. 5013 [Richard Levitte] 5014 5015 *) Add support for FreeBSD on IA64. 5016 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 5017 5018 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 5019 Kerberos function mit_des_cbc_cksum(). Before this change, 5020 the value returned by DES_cbc_cksum() was like the one from 5021 mit_des_cbc_cksum(), except the bytes were swapped. 5022 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 5023 5024 *) Allow an application to disable the automatic SSL chain building. 5025 Before this a rather primitive chain build was always performed in 5026 ssl3_output_cert_chain(): an application had no way to send the 5027 correct chain if the automatic operation produced an incorrect result. 5028 5029 Now the chain builder is disabled if either: 5030 5031 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 5032 5033 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 5034 5035 The reasoning behind this is that an application would not want the 5036 auto chain building to take place if extra chain certificates are 5037 present and it might also want a means of sending no additional 5038 certificates (for example the chain has two certificates and the 5039 root is omitted). 5040 [Steve Henson] 5041 5042 *) Add the possibility to build without the ENGINE framework. 5043 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 5044 5045 *) Under Win32 gmtime() can return NULL: check return value in 5046 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 5047 [Steve Henson] 5048 5049 *) DSA routines: under certain error conditions uninitialized BN objects 5050 could be freed. Solution: make sure initialization is performed early 5051 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 5052 Nils Larsch <nla@trustcenter.de> via PR#459) 5053 [Lutz Jaenicke] 5054 5055 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 5056 checked on reconnect on the client side, therefore session resumption 5057 could still fail with a "ssl session id is different" error. This 5058 behaviour is masked when SSL_OP_ALL is used due to 5059 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 5060 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 5061 followup to PR #377. 5062 [Lutz Jaenicke] 5063 5064 *) IA-32 assembler support enhancements: unified ELF targets, support 5065 for SCO/Caldera platforms, fix for Cygwin shared build. 5066 [Andy Polyakov] 5067 5068 *) Add support for FreeBSD on sparc64. As a consequence, support for 5069 FreeBSD on non-x86 processors is separate from x86 processors on 5070 the config script, much like the NetBSD support. 5071 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 5072 5073 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 5074 5075 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 5076 OpenSSL 0.9.7.] 5077 5078 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 5079 code (06) was taken as the first octet of the session ID and the last 5080 octet was ignored consequently. As a result SSLv2 client side session 5081 caching could not have worked due to the session ID mismatch between 5082 client and server. 5083 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 5084 PR #377. 5085 [Lutz Jaenicke] 5086 5087 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 5088 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 5089 removed entirely. 5090 [Richard Levitte] 5091 5092 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 5093 seems that in spite of existing for more than a year, many application 5094 author have done nothing to provide the necessary callbacks, which 5095 means that this particular engine will not work properly anywhere. 5096 This is a very unfortunate situation which forces us, in the name 5097 of usability, to give the hw_ncipher.c a static lock, which is part 5098 of libcrypto. 5099 NOTE: This is for the 0.9.7 series ONLY. This hack will never 5100 appear in 0.9.8 or later. We EXPECT application authors to have 5101 dealt properly with this when 0.9.8 is released (unless we actually 5102 make such changes in the libcrypto locking code that changes will 5103 have to be made anyway). 5104 [Richard Levitte] 5105 5106 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 5107 octets have been read, EOF or an error occurs. Without this change 5108 some truncated ASN1 structures will not produce an error. 5109 [Steve Henson] 5110 5111 *) Disable Heimdal support, since it hasn't been fully implemented. 5112 Still give the possibility to force the use of Heimdal, but with 5113 warnings and a request that patches get sent to openssl-dev. 5114 [Richard Levitte] 5115 5116 *) Add the VC-CE target, introduce the WINCE sysname, and add 5117 INSTALL.WCE and appropriate conditionals to make it build. 5118 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 5119 5120 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 5121 cygssl-x.y.z.dll, where x, y and z are the major, minor and 5122 edit numbers of the version. 5123 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 5124 5125 *) Introduce safe string copy and catenation functions 5126 (BUF_strlcpy() and BUF_strlcat()). 5127 [Ben Laurie (CHATS) and Richard Levitte] 5128 5129 *) Avoid using fixed-size buffers for one-line DNs. 5130 [Ben Laurie (CHATS)] 5131 5132 *) Add BUF_MEM_grow_clean() to avoid information leakage when 5133 resizing buffers containing secrets, and use where appropriate. 5134 [Ben Laurie (CHATS)] 5135 5136 *) Avoid using fixed size buffers for configuration file location. 5137 [Ben Laurie (CHATS)] 5138 5139 *) Avoid filename truncation for various CA files. 5140 [Ben Laurie (CHATS)] 5141 5142 *) Use sizeof in preference to magic numbers. 5143 [Ben Laurie (CHATS)] 5144 5145 *) Avoid filename truncation in cert requests. 5146 [Ben Laurie (CHATS)] 5147 5148 *) Add assertions to check for (supposedly impossible) buffer 5149 overflows. 5150 [Ben Laurie (CHATS)] 5151 5152 *) Don't cache truncated DNS entries in the local cache (this could 5153 potentially lead to a spoofing attack). 5154 [Ben Laurie (CHATS)] 5155 5156 *) Fix various buffers to be large enough for hex/decimal 5157 representations in a platform independent manner. 5158 [Ben Laurie (CHATS)] 5159 5160 *) Add CRYPTO_realloc_clean() to avoid information leakage when 5161 resizing buffers containing secrets, and use where appropriate. 5162 [Ben Laurie (CHATS)] 5163 5164 *) Add BIO_indent() to avoid much slightly worrying code to do 5165 indents. 5166 [Ben Laurie (CHATS)] 5167 5168 *) Convert sprintf()/BIO_puts() to BIO_printf(). 5169 [Ben Laurie (CHATS)] 5170 5171 *) buffer_gets() could terminate with the buffer only half 5172 full. Fixed. 5173 [Ben Laurie (CHATS)] 5174 5175 *) Add assertions to prevent user-supplied crypto functions from 5176 overflowing internal buffers by having large block sizes, etc. 5177 [Ben Laurie (CHATS)] 5178 5179 *) New OPENSSL_assert() macro (similar to assert(), but enabled 5180 unconditionally). 5181 [Ben Laurie (CHATS)] 5182 5183 *) Eliminate unused copy of key in RC4. 5184 [Ben Laurie (CHATS)] 5185 5186 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 5187 [Ben Laurie (CHATS)] 5188 5189 *) Fix off-by-one error in EGD path. 5190 [Ben Laurie (CHATS)] 5191 5192 *) If RANDFILE path is too long, ignore instead of truncating. 5193 [Ben Laurie (CHATS)] 5194 5195 *) Eliminate unused and incorrectly sized X.509 structure 5196 CBCParameter. 5197 [Ben Laurie (CHATS)] 5198 5199 *) Eliminate unused and dangerous function knumber(). 5200 [Ben Laurie (CHATS)] 5201 5202 *) Eliminate unused and dangerous structure, KSSL_ERR. 5203 [Ben Laurie (CHATS)] 5204 5205 *) Protect against overlong session ID context length in an encoded 5206 session object. Since these are local, this does not appear to be 5207 exploitable. 5208 [Ben Laurie (CHATS)] 5209 5210 *) Change from security patch (see 0.9.6e below) that did not affect 5211 the 0.9.6 release series: 5212 5213 Remote buffer overflow in SSL3 protocol - an attacker could 5214 supply an oversized master key in Kerberos-enabled versions. 5215 (CVE-2002-0657) 5216 [Ben Laurie (CHATS)] 5217 5218 *) Change the SSL kerb5 codes to match RFC 2712. 5219 [Richard Levitte] 5220 5221 *) Make -nameopt work fully for req and add -reqopt switch. 5222 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 5223 5224 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 5225 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 5226 5227 *) Make sure tests can be performed even if the corresponding algorithms 5228 have been removed entirely. This was also the last step to make 5229 OpenSSL compilable with DJGPP under all reasonable conditions. 5230 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 5231 5232 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 5233 to allow version independent disabling of normally unselected ciphers, 5234 which may be activated as a side-effect of selecting a single cipher. 5235 5236 (E.g., cipher list string "RSA" enables ciphersuites that are left 5237 out of "ALL" because they do not provide symmetric encryption. 5238 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 5239 [Lutz Jaenicke, Bodo Moeller] 5240 5241 *) Add appropriate support for separate platform-dependent build 5242 directories. The recommended way to make a platform-dependent 5243 build directory is the following (tested on Linux), maybe with 5244 some local tweaks: 5245 5246 # Place yourself outside of the OpenSSL source tree. In 5247 # this example, the environment variable OPENSSL_SOURCE 5248 # is assumed to contain the absolute OpenSSL source directory. 5249 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 5250 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 5251 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 5252 mkdir -p `dirname $F` 5253 ln -s $OPENSSL_SOURCE/$F $F 5254 done 5255 5256 To be absolutely sure not to disturb the source tree, a "make clean" 5257 is a good thing. If it isn't successfull, don't worry about it, 5258 it probably means the source directory is very clean. 5259 [Richard Levitte] 5260 5261 *) Make sure any ENGINE control commands make local copies of string 5262 pointers passed to them whenever necessary. Otherwise it is possible 5263 the caller may have overwritten (or deallocated) the original string 5264 data when a later ENGINE operation tries to use the stored values. 5265 [Götz Babin-Ebell <babinebell@trustcenter.de>] 5266 5267 *) Improve diagnostics in file reading and command-line digests. 5268 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 5269 5270 *) Add AES modes CFB and OFB to the object database. Correct an 5271 error in AES-CFB decryption. 5272 [Richard Levitte] 5273 5274 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 5275 allows existing EVP_CIPHER_CTX structures to be reused after 5276 calling EVP_*Final(). This behaviour is used by encryption 5277 BIOs and some applications. This has the side effect that 5278 applications must explicitly clean up cipher contexts with 5279 EVP_CIPHER_CTX_cleanup() or they will leak memory. 5280 [Steve Henson] 5281 5282 *) Check the values of dna and dnb in bn_mul_recursive before calling 5283 bn_mul_comba (a non zero value means the a or b arrays do not contain 5284 n2 elements) and fallback to bn_mul_normal if either is not zero. 5285 [Steve Henson] 5286 5287 *) Fix escaping of non-ASCII characters when using the -subj option 5288 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 5289 [Lutz Jaenicke] 5290 5291 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 5292 form for "surname", serialNumber has no short form. 5293 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 5294 therefore remove "mail" short name for "internet 7". 5295 The OID for unique identifiers in X509 certificates is 5296 x500UniqueIdentifier, not uniqueIdentifier. 5297 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 5298 [Lutz Jaenicke] 5299 5300 *) Add an "init" command to the ENGINE config module and auto initialize 5301 ENGINEs. Without any "init" command the ENGINE will be initialized 5302 after all ctrl commands have been executed on it. If init=1 the 5303 ENGINE is initailized at that point (ctrls before that point are run 5304 on the uninitialized ENGINE and after on the initialized one). If 5305 init=0 then the ENGINE will not be iniatialized at all. 5306 [Steve Henson] 5307 5308 *) Fix the 'app_verify_callback' interface so that the user-defined 5309 argument is actually passed to the callback: In the 5310 SSL_CTX_set_cert_verify_callback() prototype, the callback 5311 declaration has been changed from 5312 int (*cb)() 5313 into 5314 int (*cb)(X509_STORE_CTX *,void *); 5315 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 5316 i=s->ctx->app_verify_callback(&ctx) 5317 has been changed into 5318 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 5319 5320 To update applications using SSL_CTX_set_cert_verify_callback(), 5321 a dummy argument can be added to their callback functions. 5322 [D. K. Smetters <smetters@parc.xerox.com>] 5323 5324 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 5325 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 5326 5327 *) Add and OPENSSL_LOAD_CONF define which will cause 5328 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 5329 This allows older applications to transparently support certain 5330 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 5331 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 5332 load the config file and OPENSSL_add_all_algorithms_conf() which will 5333 always load it have also been added. 5334 [Steve Henson] 5335 5336 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 5337 Adjust NIDs and EVP layer. 5338 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 5339 5340 *) Config modules support in openssl utility. 5341 5342 Most commands now load modules from the config file, 5343 though in a few (such as version) this isn't done 5344 because it couldn't be used for anything. 5345 5346 In the case of ca and req the config file used is 5347 the same as the utility itself: that is the -config 5348 command line option can be used to specify an 5349 alternative file. 5350 [Steve Henson] 5351 5352 *) Move default behaviour from OPENSSL_config(). If appname is NULL 5353 use "openssl_conf" if filename is NULL use default openssl config file. 5354 [Steve Henson] 5355 5356 *) Add an argument to OPENSSL_config() to allow the use of an alternative 5357 config section name. Add a new flag to tolerate a missing config file 5358 and move code to CONF_modules_load_file(). 5359 [Steve Henson] 5360 5361 *) Support for crypto accelerator cards from Accelerated Encryption 5362 Processing, www.aep.ie. (Use engine 'aep') 5363 The support was copied from 0.9.6c [engine] and adapted/corrected 5364 to work with the new engine framework. 5365 [AEP Inc. and Richard Levitte] 5366 5367 *) Support for SureWare crypto accelerator cards from Baltimore 5368 Technologies. (Use engine 'sureware') 5369 The support was copied from 0.9.6c [engine] and adapted 5370 to work with the new engine framework. 5371 [Richard Levitte] 5372 5373 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 5374 make the newer ENGINE framework commands for the CHIL engine work. 5375 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 5376 5377 *) Make it possible to produce shared libraries on ReliantUNIX. 5378 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 5379 5380 *) Add the configuration target debug-linux-ppro. 5381 Make 'openssl rsa' use the general key loading routines 5382 implemented in apps.c, and make those routines able to 5383 handle the key format FORMAT_NETSCAPE and the variant 5384 FORMAT_IISSGC. 5385 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 5386 5387 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 5388 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 5389 5390 *) Add -keyform to rsautl, and document -engine. 5391 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 5392 5393 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 5394 BIO_R_NO_SUCH_FILE error code rather than the generic 5395 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 5396 [Ben Laurie] 5397 5398 *) Add new functions 5399 ERR_peek_last_error 5400 ERR_peek_last_error_line 5401 ERR_peek_last_error_line_data. 5402 These are similar to 5403 ERR_peek_error 5404 ERR_peek_error_line 5405 ERR_peek_error_line_data, 5406 but report on the latest error recorded rather than the first one 5407 still in the error queue. 5408 [Ben Laurie, Bodo Moeller] 5409 5410 *) default_algorithms option in ENGINE config module. This allows things 5411 like: 5412 default_algorithms = ALL 5413 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 5414 [Steve Henson] 5415 5416 *) Prelminary ENGINE config module. 5417 [Steve Henson] 5418 5419 *) New experimental application configuration code. 5420 [Steve Henson] 5421 5422 *) Change the AES code to follow the same name structure as all other 5423 symmetric ciphers, and behave the same way. Move everything to 5424 the directory crypto/aes, thereby obsoleting crypto/rijndael. 5425 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 5426 5427 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 5428 [Ben Laurie and Theo de Raadt] 5429 5430 *) Add option to output public keys in req command. 5431 [Massimiliano Pala madwolf@openca.org] 5432 5433 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 5434 (up to about 10% better than before for P-192 and P-224). 5435 [Bodo Moeller] 5436 5437 *) New functions/macros 5438 5439 SSL_CTX_set_msg_callback(ctx, cb) 5440 SSL_CTX_set_msg_callback_arg(ctx, arg) 5441 SSL_set_msg_callback(ssl, cb) 5442 SSL_set_msg_callback_arg(ssl, arg) 5443 5444 to request calling a callback function 5445 5446 void cb(int write_p, int version, int content_type, 5447 const void *buf, size_t len, SSL *ssl, void *arg) 5448 5449 whenever a protocol message has been completely received 5450 (write_p == 0) or sent (write_p == 1). Here 'version' is the 5451 protocol version according to which the SSL library interprets 5452 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 5453 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 5454 the content type as defined in the SSL 3.0/TLS 1.0 protocol 5455 specification (change_cipher_spec(20), alert(21), handshake(22)). 5456 'buf' and 'len' point to the actual message, 'ssl' to the 5457 SSL object, and 'arg' is the application-defined value set by 5458 SSL[_CTX]_set_msg_callback_arg(). 5459 5460 'openssl s_client' and 'openssl s_server' have new '-msg' options 5461 to enable a callback that displays all protocol messages. 5462 [Bodo Moeller] 5463 5464 *) Change the shared library support so shared libraries are built as 5465 soon as the corresponding static library is finished, and thereby get 5466 openssl and the test programs linked against the shared library. 5467 This still only happens when the keyword "shard" has been given to 5468 the configuration scripts. 5469 5470 NOTE: shared library support is still an experimental thing, and 5471 backward binary compatibility is still not guaranteed. 5472 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 5473 5474 *) Add support for Subject Information Access extension. 5475 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 5476 5477 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 5478 additional bytes when new memory had to be allocated, not just 5479 when reusing an existing buffer. 5480 [Bodo Moeller] 5481 5482 *) New command line and configuration option 'utf8' for the req command. 5483 This allows field values to be specified as UTF8 strings. 5484 [Steve Henson] 5485 5486 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 5487 runs for the former and machine-readable output for the latter. 5488 [Ben Laurie] 5489 5490 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 5491 of the e-mail address in the DN (i.e., it will go into a certificate 5492 extension only). The new configuration file option 'email_in_dn = no' 5493 has the same effect. 5494 [Massimiliano Pala madwolf@openca.org] 5495 5496 *) Change all functions with names starting with des_ to be starting 5497 with DES_ instead. Add wrappers that are compatible with libdes, 5498 but are named _ossl_old_des_*. Finally, add macros that map the 5499 des_* symbols to the corresponding _ossl_old_des_* if libdes 5500 compatibility is desired. If OpenSSL 0.9.6c compatibility is 5501 desired, the des_* symbols will be mapped to DES_*, with one 5502 exception. 5503 5504 Since we provide two compatibility mappings, the user needs to 5505 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 5506 compatibility is desired. The default (i.e., when that macro 5507 isn't defined) is OpenSSL 0.9.6c compatibility. 5508 5509 There are also macros that enable and disable the support of old 5510 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 5511 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 5512 are defined, the default will apply: to support the old des routines. 5513 5514 In either case, one must include openssl/des.h to get the correct 5515 definitions. Do not try to just include openssl/des_old.h, that 5516 won't work. 5517 5518 NOTE: This is a major break of an old API into a new one. Software 5519 authors are encouraged to switch to the DES_ style functions. Some 5520 time in the future, des_old.h and the libdes compatibility functions 5521 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 5522 default), and then completely removed. 5523 [Richard Levitte] 5524 5525 *) Test for certificates which contain unsupported critical extensions. 5526 If such a certificate is found during a verify operation it is 5527 rejected by default: this behaviour can be overridden by either 5528 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 5529 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 5530 X509_supported_extension() has also been added which returns 1 if a 5531 particular extension is supported. 5532 [Steve Henson] 5533 5534 *) Modify the behaviour of EVP cipher functions in similar way to digests 5535 to retain compatibility with existing code. 5536 [Steve Henson] 5537 5538 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 5539 compatibility with existing code. In particular the 'ctx' parameter does 5540 not have to be to be initialized before the call to EVP_DigestInit() and 5541 it is tidied up after a call to EVP_DigestFinal(). New function 5542 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 5543 EVP_MD_CTX_copy() changed to not require the destination to be 5544 initialized valid and new function EVP_MD_CTX_copy_ex() added which 5545 requires the destination to be valid. 5546 5547 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 5548 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 5549 [Steve Henson] 5550 5551 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 5552 so that complete 'Handshake' protocol structures are kept in memory 5553 instead of overwriting 'msg_type' and 'length' with 'body' data. 5554 [Bodo Moeller] 5555 5556 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 5557 [Massimo Santin via Richard Levitte] 5558 5559 *) Major restructuring to the underlying ENGINE code. This includes 5560 reduction of linker bloat, separation of pure "ENGINE" manipulation 5561 (initialisation, etc) from functionality dealing with implementations 5562 of specific crypto iterfaces. This change also introduces integrated 5563 support for symmetric ciphers and digest implementations - so ENGINEs 5564 can now accelerate these by providing EVP_CIPHER and EVP_MD 5565 implementations of their own. This is detailed in crypto/engine/README 5566 as it couldn't be adequately described here. However, there are a few 5567 API changes worth noting - some RSA, DSA, DH, and RAND functions that 5568 were changed in the original introduction of ENGINE code have now 5569 reverted back - the hooking from this code to ENGINE is now a good 5570 deal more passive and at run-time, operations deal directly with 5571 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 5572 dereferencing through an ENGINE pointer any more. Also, the ENGINE 5573 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 5574 they were not being used by the framework as there is no concept of a 5575 BIGNUM_METHOD and they could not be generalised to the new 5576 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 5577 ENGINE_cpy() has been removed as it cannot be consistently defined in 5578 the new code. 5579 [Geoff Thorpe] 5580 5581 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 5582 [Steve Henson] 5583 5584 *) Change mkdef.pl to sort symbols that get the same entry number, 5585 and make sure the automatically generated functions ERR_load_* 5586 become part of libeay.num as well. 5587 [Richard Levitte] 5588 5589 *) New function SSL_renegotiate_pending(). This returns true once 5590 renegotiation has been requested (either SSL_renegotiate() call 5591 or HelloRequest/ClientHello receveived from the peer) and becomes 5592 false once a handshake has been completed. 5593 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 5594 sends a HelloRequest, but does not ensure that a handshake takes 5595 place. SSL_renegotiate_pending() is useful for checking if the 5596 client has followed the request.) 5597 [Bodo Moeller] 5598 5599 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 5600 By default, clients may request session resumption even during 5601 renegotiation (if session ID contexts permit); with this option, 5602 session resumption is possible only in the first handshake. 5603 5604 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 5605 more bits available for options that should not be part of 5606 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 5607 [Bodo Moeller] 5608 5609 *) Add some demos for certificate and certificate request creation. 5610 [Steve Henson] 5611 5612 *) Make maximum certificate chain size accepted from the peer application 5613 settable (SSL*_get/set_max_cert_list()), as proposed by 5614 "Douglas E. Engert" <deengert@anl.gov>. 5615 [Lutz Jaenicke] 5616 5617 *) Add support for shared libraries for Unixware-7 5618 (Boyd Lynn Gerber <gerberb@zenez.com>). 5619 [Lutz Jaenicke] 5620 5621 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 5622 be done prior to destruction. Use this to unload error strings from 5623 ENGINEs that load their own error strings. NB: This adds two new API 5624 functions to "get" and "set" this destroy handler in an ENGINE. 5625 [Geoff Thorpe] 5626 5627 *) Alter all existing ENGINE implementations (except "openssl" and 5628 "openbsd") to dynamically instantiate their own error strings. This 5629 makes them more flexible to be built both as statically-linked ENGINEs 5630 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 5631 Also, add stub code to each that makes building them as self-contained 5632 shared-libraries easier (see README.ENGINE). 5633 [Geoff Thorpe] 5634 5635 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 5636 implementations into applications that are completely implemented in 5637 self-contained shared-libraries. The "dynamic" ENGINE exposes control 5638 commands that can be used to configure what shared-library to load and 5639 to control aspects of the way it is handled. Also, made an update to 5640 the README.ENGINE file that brings its information up-to-date and 5641 provides some information and instructions on the "dynamic" ENGINE 5642 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 5643 [Geoff Thorpe] 5644 5645 *) Make it possible to unload ranges of ERR strings with a new 5646 "ERR_unload_strings" function. 5647 [Geoff Thorpe] 5648 5649 *) Add a copy() function to EVP_MD. 5650 [Ben Laurie] 5651 5652 *) Make EVP_MD routines take a context pointer instead of just the 5653 md_data void pointer. 5654 [Ben Laurie] 5655 5656 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 5657 that the digest can only process a single chunk of data 5658 (typically because it is provided by a piece of 5659 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 5660 is only going to provide a single chunk of data, and hence the 5661 framework needn't accumulate the data for oneshot drivers. 5662 [Ben Laurie] 5663 5664 *) As with "ERR", make it possible to replace the underlying "ex_data" 5665 functions. This change also alters the storage and management of global 5666 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 5667 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 5668 index counters. The API functions that use this state have been changed 5669 to take a "class_index" rather than pointers to the class's local STACK 5670 and counter, and there is now an API function to dynamically create new 5671 classes. This centralisation allows us to (a) plug a lot of the 5672 thread-safety problems that existed, and (b) makes it possible to clean 5673 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 5674 such data would previously have always leaked in application code and 5675 workarounds were in place to make the memory debugging turn a blind eye 5676 to it. Application code that doesn't use this new function will still 5677 leak as before, but their memory debugging output will announce it now 5678 rather than letting it slide. 5679 5680 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 5681 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 5682 has a return value to indicate success or failure. 5683 [Geoff Thorpe] 5684 5685 *) Make it possible to replace the underlying "ERR" functions such that the 5686 global state (2 LHASH tables and 2 locks) is only used by the "default" 5687 implementation. This change also adds two functions to "get" and "set" 5688 the implementation prior to it being automatically set the first time 5689 any other ERR function takes place. Ie. an application can call "get", 5690 pass the return value to a module it has just loaded, and that module 5691 can call its own "set" function using that value. This means the 5692 module's "ERR" operations will use (and modify) the error state in the 5693 application and not in its own statically linked copy of OpenSSL code. 5694 [Geoff Thorpe] 5695 5696 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 5697 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 5698 the operation, and provides a more encapsulated way for external code 5699 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 5700 to use these functions rather than manually incrementing the counts. 5701 5702 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 5703 [Geoff Thorpe] 5704 5705 *) Add EVP test program. 5706 [Ben Laurie] 5707 5708 *) Add symmetric cipher support to ENGINE. Expect the API to change! 5709 [Ben Laurie] 5710 5711 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 5712 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 5713 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 5714 These allow a CRL to be built without having to access X509_CRL fields 5715 directly. Modify 'ca' application to use new functions. 5716 [Steve Henson] 5717 5718 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 5719 bug workarounds. Rollback attack detection is a security feature. 5720 The problem will only arise on OpenSSL servers when TLSv1 is not 5721 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 5722 Software authors not wanting to support TLSv1 will have special reasons 5723 for their choice and can explicitly enable this option. 5724 [Bodo Moeller, Lutz Jaenicke] 5725 5726 *) Rationalise EVP so it can be extended: don't include a union of 5727 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 5728 (similar to those existing for EVP_CIPHER_CTX). 5729 Usage example: 5730 5731 EVP_MD_CTX md; 5732 5733 EVP_MD_CTX_init(&md); /* new function call */ 5734 EVP_DigestInit(&md, EVP_sha1()); 5735 EVP_DigestUpdate(&md, in, len); 5736 EVP_DigestFinal(&md, out, NULL); 5737 EVP_MD_CTX_cleanup(&md); /* new function call */ 5738 5739 [Ben Laurie] 5740 5741 *) Make DES key schedule conform to the usual scheme, as well as 5742 correcting its structure. This means that calls to DES functions 5743 now have to pass a pointer to a des_key_schedule instead of a 5744 plain des_key_schedule (which was actually always a pointer 5745 anyway): E.g., 5746 5747 des_key_schedule ks; 5748 5749 des_set_key_checked(..., &ks); 5750 des_ncbc_encrypt(..., &ks, ...); 5751 5752 (Note that a later change renames 'des_...' into 'DES_...'.) 5753 [Ben Laurie] 5754 5755 *) Initial reduction of linker bloat: the use of some functions, such as 5756 PEM causes large amounts of unused functions to be linked in due to 5757 poor organisation. For example pem_all.c contains every PEM function 5758 which has a knock on effect of linking in large amounts of (unused) 5759 ASN1 code. Grouping together similar functions and splitting unrelated 5760 functions prevents this. 5761 [Steve Henson] 5762 5763 *) Cleanup of EVP macros. 5764 [Ben Laurie] 5765 5766 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 5767 correct _ecb suffix. 5768 [Ben Laurie] 5769 5770 *) Add initial OCSP responder support to ocsp application. The 5771 revocation information is handled using the text based index 5772 use by the ca application. The responder can either handle 5773 requests generated internally, supplied in files (for example 5774 via a CGI script) or using an internal minimal server. 5775 [Steve Henson] 5776 5777 *) Add configuration choices to get zlib compression for TLS. 5778 [Richard Levitte] 5779 5780 *) Changes to Kerberos SSL for RFC 2712 compliance: 5781 1. Implemented real KerberosWrapper, instead of just using 5782 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 5783 2. Implemented optional authenticator field of KerberosWrapper. 5784 5785 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 5786 and authenticator structs; see crypto/krb5/. 5787 5788 Generalized Kerberos calls to support multiple Kerberos libraries. 5789 [Vern Staats <staatsvr@asc.hpc.mil>, 5790 Jeffrey Altman <jaltman@columbia.edu> 5791 via Richard Levitte] 5792 5793 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 5794 already does with RSA. testdsa.h now has 'priv_key/pub_key' 5795 values for each of the key sizes rather than having just 5796 parameters (and 'speed' generating keys each time). 5797 [Geoff Thorpe] 5798 5799 *) Speed up EVP routines. 5800 Before: 5801encrypt 5802type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 5803des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 5804des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 5805des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 5806decrypt 5807des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 5808des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 5809des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 5810 After: 5811encrypt 5812des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 5813decrypt 5814des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 5815 [Ben Laurie] 5816 5817 *) Added the OS2-EMX target. 5818 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 5819 5820 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 5821 to support NCONF routines in extension code. New function CONF_set_nconf() 5822 to allow functions which take an NCONF to also handle the old LHASH 5823 structure: this means that the old CONF compatible routines can be 5824 retained (in particular wrt extensions) without having to duplicate the 5825 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 5826 [Steve Henson] 5827 5828 *) Enhance the general user interface with mechanisms for inner control 5829 and with possibilities to have yes/no kind of prompts. 5830 [Richard Levitte] 5831 5832 *) Change all calls to low level digest routines in the library and 5833 applications to use EVP. Add missing calls to HMAC_cleanup() and 5834 don't assume HMAC_CTX can be copied using memcpy(). 5835 [Verdon Walker <VWalker@novell.com>, Steve Henson] 5836 5837 *) Add the possibility to control engines through control names but with 5838 arbitrary arguments instead of just a string. 5839 Change the key loaders to take a UI_METHOD instead of a callback 5840 function pointer. NOTE: this breaks binary compatibility with earlier 5841 versions of OpenSSL [engine]. 5842 Adapt the nCipher code for these new conditions and add a card insertion 5843 callback. 5844 [Richard Levitte] 5845 5846 *) Enhance the general user interface with mechanisms to better support 5847 dialog box interfaces, application-defined prompts, the possibility 5848 to use defaults (for example default passwords from somewhere else) 5849 and interrupts/cancellations. 5850 [Richard Levitte] 5851 5852 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 5853 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 5854 [Steve Henson] 5855 5856 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 5857 tidy up some unnecessarily weird code in 'sk_new()'). 5858 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 5859 5860 *) Change the key loading routines for ENGINEs to use the same kind 5861 callback (pem_password_cb) as all other routines that need this 5862 kind of callback. 5863 [Richard Levitte] 5864 5865 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 5866 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 5867 than this minimum value is recommended. 5868 [Lutz Jaenicke] 5869 5870 *) New random seeder for OpenVMS, using the system process statistics 5871 that are easily reachable. 5872 [Richard Levitte] 5873 5874 *) Windows apparently can't transparently handle global 5875 variables defined in DLLs. Initialisations such as: 5876 5877 const ASN1_ITEM *it = &ASN1_INTEGER_it; 5878 5879 wont compile. This is used by the any applications that need to 5880 declare their own ASN1 modules. This was fixed by adding the option 5881 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 5882 needed for static libraries under Win32. 5883 [Steve Henson] 5884 5885 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 5886 setting of purpose and trust fields. New X509_STORE trust and 5887 purpose functions and tidy up setting in other SSL functions. 5888 [Steve Henson] 5889 5890 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 5891 structure. These are inherited by X509_STORE_CTX when it is 5892 initialised. This allows various defaults to be set in the 5893 X509_STORE structure (such as flags for CRL checking and custom 5894 purpose or trust settings) for functions which only use X509_STORE_CTX 5895 internally such as S/MIME. 5896 5897 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 5898 trust settings if they are not set in X509_STORE. This allows X509_STORE 5899 purposes and trust (in S/MIME for example) to override any set by default. 5900 5901 Add command line options for CRL checking to smime, s_client and s_server 5902 applications. 5903 [Steve Henson] 5904 5905 *) Initial CRL based revocation checking. If the CRL checking flag(s) 5906 are set then the CRL is looked up in the X509_STORE structure and 5907 its validity and signature checked, then if the certificate is found 5908 in the CRL the verify fails with a revoked error. 5909 5910 Various new CRL related callbacks added to X509_STORE_CTX structure. 5911 5912 Command line options added to 'verify' application to support this. 5913 5914 This needs some additional work, such as being able to handle multiple 5915 CRLs with different times, extension based lookup (rather than just 5916 by subject name) and ultimately more complete V2 CRL extension 5917 handling. 5918 [Steve Henson] 5919 5920 *) Add a general user interface API (crypto/ui/). This is designed 5921 to replace things like des_read_password and friends (backward 5922 compatibility functions using this new API are provided). 5923 The purpose is to remove prompting functions from the DES code 5924 section as well as provide for prompting through dialog boxes in 5925 a window system and the like. 5926 [Richard Levitte] 5927 5928 *) Add "ex_data" support to ENGINE so implementations can add state at a 5929 per-structure level rather than having to store it globally. 5930 [Geoff] 5931 5932 *) Make it possible for ENGINE structures to be copied when retrieved by 5933 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 5934 This causes the "original" ENGINE structure to act like a template, 5935 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 5936 operational state can be localised to each ENGINE structure, despite the 5937 fact they all share the same "methods". New ENGINE structures returned in 5938 this case have no functional references and the return value is the single 5939 structural reference. This matches the single structural reference returned 5940 by ENGINE_by_id() normally, when it is incremented on the pre-existing 5941 ENGINE structure. 5942 [Geoff] 5943 5944 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 5945 needs to match any other type at all we need to manually clear the 5946 tag cache. 5947 [Steve Henson] 5948 5949 *) Changes to the "openssl engine" utility to include; 5950 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 5951 about an ENGINE's available control commands. 5952 - executing control commands from command line arguments using the 5953 '-pre' and '-post' switches. '-post' is only used if '-t' is 5954 specified and the ENGINE is successfully initialised. The syntax for 5955 the individual commands are colon-separated, for example; 5956 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 5957 [Geoff] 5958 5959 *) New dynamic control command support for ENGINEs. ENGINEs can now 5960 declare their own commands (numbers), names (strings), descriptions, 5961 and input types for run-time discovery by calling applications. A 5962 subset of these commands are implicitly classed as "executable" 5963 depending on their input type, and only these can be invoked through 5964 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 5965 can be based on user input, config files, etc). The distinction is 5966 that "executable" commands cannot return anything other than a boolean 5967 result and can only support numeric or string input, whereas some 5968 discoverable commands may only be for direct use through 5969 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 5970 pointers, or other custom uses. The "executable" commands are to 5971 support parameterisations of ENGINE behaviour that can be 5972 unambiguously defined by ENGINEs and used consistently across any 5973 OpenSSL-based application. Commands have been added to all the 5974 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 5975 control over shared-library paths without source code alterations. 5976 [Geoff] 5977 5978 *) Changed all ENGINE implementations to dynamically allocate their 5979 ENGINEs rather than declaring them statically. Apart from this being 5980 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 5981 this also allows the implementations to compile without using the 5982 internal engine_int.h header. 5983 [Geoff] 5984 5985 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 5986 'const' value. Any code that should be able to modify a RAND_METHOD 5987 should already have non-const pointers to it (ie. they should only 5988 modify their own ones). 5989 [Geoff] 5990 5991 *) Made a variety of little tweaks to the ENGINE code. 5992 - "atalla" and "ubsec" string definitions were moved from header files 5993 to C code. "nuron" string definitions were placed in variables 5994 rather than hard-coded - allowing parameterisation of these values 5995 later on via ctrl() commands. 5996 - Removed unused "#if 0"'d code. 5997 - Fixed engine list iteration code so it uses ENGINE_free() to release 5998 structural references. 5999 - Constified the RAND_METHOD element of ENGINE structures. 6000 - Constified various get/set functions as appropriate and added 6001 missing functions (including a catch-all ENGINE_cpy that duplicates 6002 all ENGINE values onto a new ENGINE except reference counts/state). 6003 - Removed NULL parameter checks in get/set functions. Setting a method 6004 or function to NULL is a way of cancelling out a previously set 6005 value. Passing a NULL ENGINE parameter is just plain stupid anyway 6006 and doesn't justify the extra error symbols and code. 6007 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 6008 flags from engine_int.h to engine.h. 6009 - Changed prototypes for ENGINE handler functions (init(), finish(), 6010 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 6011 [Geoff] 6012 6013 *) Implement binary inversion algorithm for BN_mod_inverse in addition 6014 to the algorithm using long division. The binary algorithm can be 6015 used only if the modulus is odd. On 32-bit systems, it is faster 6016 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 6017 roughly 5-15% for 256-bit moduli), so we use it only for moduli 6018 up to 450 bits. In 64-bit environments, the binary algorithm 6019 appears to be advantageous for much longer moduli; here we use it 6020 for moduli up to 2048 bits. 6021 [Bodo Moeller] 6022 6023 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 6024 could not support the combine flag in choice fields. 6025 [Steve Henson] 6026 6027 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 6028 extensions from a certificate request to the certificate. 6029 [Steve Henson] 6030 6031 *) Allow multiple 'certopt' and 'nameopt' options to be separated 6032 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 6033 file: this allows the display of the certificate about to be 6034 signed to be customised, to allow certain fields to be included 6035 or excluded and extension details. The old system didn't display 6036 multicharacter strings properly, omitted fields not in the policy 6037 and couldn't display additional details such as extensions. 6038 [Steve Henson] 6039 6040 *) Function EC_POINTs_mul for multiple scalar multiplication 6041 of an arbitrary number of elliptic curve points 6042 \sum scalars[i]*points[i], 6043 optionally including the generator defined for the EC_GROUP: 6044 scalar*generator + \sum scalars[i]*points[i]. 6045 6046 EC_POINT_mul is a simple wrapper function for the typical case 6047 that the point list has just one item (besides the optional 6048 generator). 6049 [Bodo Moeller] 6050 6051 *) First EC_METHODs for curves over GF(p): 6052 6053 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 6054 operations and provides various method functions that can also 6055 operate with faster implementations of modular arithmetic. 6056 6057 EC_GFp_mont_method() reuses most functions that are part of 6058 EC_GFp_simple_method, but uses Montgomery arithmetic. 6059 6060 [Bodo Moeller; point addition and point doubling 6061 implementation directly derived from source code provided by 6062 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 6063 6064 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 6065 crypto/ec/ec_lib.c): 6066 6067 Curves are EC_GROUP objects (with an optional group generator) 6068 based on EC_METHODs that are built into the library. 6069 6070 Points are EC_POINT objects based on EC_GROUP objects. 6071 6072 Most of the framework would be able to handle curves over arbitrary 6073 finite fields, but as there are no obvious types for fields other 6074 than GF(p), some functions are limited to that for now. 6075 [Bodo Moeller] 6076 6077 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 6078 that the file contains a complete HTTP response. 6079 [Richard Levitte] 6080 6081 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 6082 change the def and num file printf format specifier from "%-40sXXX" 6083 to "%-39s XXX". The latter will always guarantee a space after the 6084 field while the former will cause them to run together if the field 6085 is 40 of more characters long. 6086 [Steve Henson] 6087 6088 *) Constify the cipher and digest 'method' functions and structures 6089 and modify related functions to take constant EVP_MD and EVP_CIPHER 6090 pointers. 6091 [Steve Henson] 6092 6093 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 6094 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 6095 [Bodo Moeller] 6096 6097 *) Modify EVP_Digest*() routines so they now return values. Although the 6098 internal software routines can never fail additional hardware versions 6099 might. 6100 [Steve Henson] 6101 6102 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 6103 6104 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 6105 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 6106 6107 ASN1 error codes 6108 ERR_R_NESTED_ASN1_ERROR 6109 ... 6110 ERR_R_MISSING_ASN1_EOS 6111 were 4 .. 9, conflicting with 6112 ERR_LIB_RSA (= ERR_R_RSA_LIB) 6113 ... 6114 ERR_LIB_PEM (= ERR_R_PEM_LIB). 6115 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 6116 6117 Add new error code 'ERR_R_INTERNAL_ERROR'. 6118 [Bodo Moeller] 6119 6120 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 6121 suffices. 6122 [Bodo Moeller] 6123 6124 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 6125 sets the subject name for a new request or supersedes the 6126 subject name in a given request. Formats that can be parsed are 6127 'CN=Some Name, OU=myOU, C=IT' 6128 and 6129 'CN=Some Name/OU=myOU/C=IT'. 6130 6131 Add options '-batch' and '-verbose' to 'openssl req'. 6132 [Massimiliano Pala <madwolf@hackmasters.net>] 6133 6134 *) Introduce the possibility to access global variables through 6135 functions on platform were that's the best way to handle exporting 6136 global variables in shared libraries. To enable this functionality, 6137 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 6138 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 6139 is normally done by Configure or something similar). 6140 6141 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 6142 in the source file (foo.c) like this: 6143 6144 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 6145 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 6146 6147 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 6148 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 6149 6150 OPENSSL_DECLARE_GLOBAL(int,foo); 6151 #define foo OPENSSL_GLOBAL_REF(foo) 6152 OPENSSL_DECLARE_GLOBAL(double,bar); 6153 #define bar OPENSSL_GLOBAL_REF(bar) 6154 6155 The #defines are very important, and therefore so is including the 6156 header file everywhere where the defined globals are used. 6157 6158 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 6159 of ASN.1 items, but that structure is a bit different. 6160 6161 The largest change is in util/mkdef.pl which has been enhanced with 6162 better and easier to understand logic to choose which symbols should 6163 go into the Windows .def files as well as a number of fixes and code 6164 cleanup (among others, algorithm keywords are now sorted 6165 lexicographically to avoid constant rewrites). 6166 [Richard Levitte] 6167 6168 *) In BN_div() keep a copy of the sign of 'num' before writing the 6169 result to 'rm' because if rm==num the value will be overwritten 6170 and produce the wrong result if 'num' is negative: this caused 6171 problems with BN_mod() and BN_nnmod(). 6172 [Steve Henson] 6173 6174 *) Function OCSP_request_verify(). This checks the signature on an 6175 OCSP request and verifies the signer certificate. The signer 6176 certificate is just checked for a generic purpose and OCSP request 6177 trust settings. 6178 [Steve Henson] 6179 6180 *) Add OCSP_check_validity() function to check the validity of OCSP 6181 responses. OCSP responses are prepared in real time and may only 6182 be a few seconds old. Simply checking that the current time lies 6183 between thisUpdate and nextUpdate max reject otherwise valid responses 6184 caused by either OCSP responder or client clock inaccuracy. Instead 6185 we allow thisUpdate and nextUpdate to fall within a certain period of 6186 the current time. The age of the response can also optionally be 6187 checked. Two new options -validity_period and -status_age added to 6188 ocsp utility. 6189 [Steve Henson] 6190 6191 *) If signature or public key algorithm is unrecognized print out its 6192 OID rather that just UNKNOWN. 6193 [Steve Henson] 6194 6195 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 6196 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 6197 ID to be generated from the issuer certificate alone which can then be 6198 passed to OCSP_id_issuer_cmp(). 6199 [Steve Henson] 6200 6201 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 6202 ASN1 modules to export functions returning ASN1_ITEM pointers 6203 instead of the ASN1_ITEM structures themselves. This adds several 6204 new macros which allow the underlying ASN1 function/structure to 6205 be accessed transparently. As a result code should not use ASN1_ITEM 6206 references directly (such as &X509_it) but instead use the relevant 6207 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 6208 use of the new ASN1 code on platforms where exporting structures 6209 is problematical (for example in shared libraries) but exporting 6210 functions returning pointers to structures is not. 6211 [Steve Henson] 6212 6213 *) Add support for overriding the generation of SSL/TLS session IDs. 6214 These callbacks can be registered either in an SSL_CTX or per SSL. 6215 The purpose of this is to allow applications to control, if they wish, 6216 the arbitrary values chosen for use as session IDs, particularly as it 6217 can be useful for session caching in multiple-server environments. A 6218 command-line switch for testing this (and any client code that wishes 6219 to use such a feature) has been added to "s_server". 6220 [Geoff Thorpe, Lutz Jaenicke] 6221 6222 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 6223 of the form '#if defined(...) || defined(...) || ...' and 6224 '#if !defined(...) && !defined(...) && ...'. This also avoids 6225 the growing number of special cases it was previously handling. 6226 [Richard Levitte] 6227 6228 *) Make all configuration macros available for application by making 6229 sure they are available in opensslconf.h, by giving them names starting 6230 with "OPENSSL_" to avoid conflicts with other packages and by making 6231 sure e_os2.h will cover all platform-specific cases together with 6232 opensslconf.h. 6233 Additionally, it is now possible to define configuration/platform- 6234 specific names (called "system identities"). In the C code, these 6235 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 6236 macro with the name beginning with "OPENSSL_SYS_", which is determined 6237 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 6238 what is available. 6239 [Richard Levitte] 6240 6241 *) New option -set_serial to 'req' and 'x509' this allows the serial 6242 number to use to be specified on the command line. Previously self 6243 signed certificates were hard coded with serial number 0 and the 6244 CA options of 'x509' had to use a serial number in a file which was 6245 auto incremented. 6246 [Steve Henson] 6247 6248 *) New options to 'ca' utility to support V2 CRL entry extensions. 6249 Currently CRL reason, invalidity date and hold instruction are 6250 supported. Add new CRL extensions to V3 code and some new objects. 6251 [Steve Henson] 6252 6253 *) New function EVP_CIPHER_CTX_set_padding() this is used to 6254 disable standard block padding (aka PKCS#5 padding) in the EVP 6255 API, which was previously mandatory. This means that the data is 6256 not padded in any way and so the total length much be a multiple 6257 of the block size, otherwise an error occurs. 6258 [Steve Henson] 6259 6260 *) Initial (incomplete) OCSP SSL support. 6261 [Steve Henson] 6262 6263 *) New function OCSP_parse_url(). This splits up a URL into its host, 6264 port and path components: primarily to parse OCSP URLs. New -url 6265 option to ocsp utility. 6266 [Steve Henson] 6267 6268 *) New nonce behavior. The return value of OCSP_check_nonce() now 6269 reflects the various checks performed. Applications can decide 6270 whether to tolerate certain situations such as an absent nonce 6271 in a response when one was present in a request: the ocsp application 6272 just prints out a warning. New function OCSP_add1_basic_nonce() 6273 this is to allow responders to include a nonce in a response even if 6274 the request is nonce-less. 6275 [Steve Henson] 6276 6277 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 6278 skipped when using openssl x509 multiple times on a single input file, 6279 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 6280 [Bodo Moeller] 6281 6282 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 6283 set string type: to handle setting ASN1_TIME structures. Fix ca 6284 utility to correctly initialize revocation date of CRLs. 6285 [Steve Henson] 6286 6287 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 6288 the clients preferred ciphersuites and rather use its own preferences. 6289 Should help to work around M$ SGC (Server Gated Cryptography) bug in 6290 Internet Explorer by ensuring unchanged hash method during stepup. 6291 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 6292 [Lutz Jaenicke] 6293 6294 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 6295 to aes and add a new 'exist' option to print out symbols that don't 6296 appear to exist. 6297 [Steve Henson] 6298 6299 *) Additional options to ocsp utility to allow flags to be set and 6300 additional certificates supplied. 6301 [Steve Henson] 6302 6303 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 6304 OCSP client a number of certificate to only verify the response 6305 signature against. 6306 [Richard Levitte] 6307 6308 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 6309 handle the new API. Currently only ECB, CBC modes supported. Add new 6310 AES OIDs. 6311 6312 Add TLS AES ciphersuites as described in RFC3268, "Advanced 6313 Encryption Standard (AES) Ciphersuites for Transport Layer 6314 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 6315 not enabled by default and were not part of the "ALL" ciphersuite 6316 alias because they were not yet official; they could be 6317 explicitly requested by specifying the "AESdraft" ciphersuite 6318 group alias. In the final release of OpenSSL 0.9.7, the group 6319 alias is called "AES" and is part of "ALL".) 6320 [Ben Laurie, Steve Henson, Bodo Moeller] 6321 6322 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 6323 request to response. 6324 [Steve Henson] 6325 6326 *) Functions for OCSP responders. OCSP_request_onereq_count(), 6327 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 6328 extract information from a certificate request. OCSP_response_create() 6329 creates a response and optionally adds a basic response structure. 6330 OCSP_basic_add1_status() adds a complete single response to a basic 6331 response and returns the OCSP_SINGLERESP structure just added (to allow 6332 extensions to be included for example). OCSP_basic_add1_cert() adds a 6333 certificate to a basic response and OCSP_basic_sign() signs a basic 6334 response with various flags. New helper functions ASN1_TIME_check() 6335 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 6336 (converts ASN1_TIME to GeneralizedTime). 6337 [Steve Henson] 6338 6339 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 6340 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 6341 structure from a certificate. X509_pubkey_digest() digests the public_key 6342 contents: this is used in various key identifiers. 6343 [Steve Henson] 6344 6345 *) Make sk_sort() tolerate a NULL argument. 6346 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 6347 6348 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 6349 passed by the function are trusted implicitly. If any of them signed the 6350 response then it is assumed to be valid and is not verified. 6351 [Steve Henson] 6352 6353 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 6354 to data. This was previously part of the PKCS7 ASN1 code. This 6355 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 6356 [Steve Henson, reported by Kenneth R. Robinette 6357 <support@securenetterm.com>] 6358 6359 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 6360 routines: without these tracing memory leaks is very painful. 6361 Fix leaks in PKCS12 and PKCS7 routines. 6362 [Steve Henson] 6363 6364 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 6365 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 6366 effectively meant GeneralizedTime would never be used. Now it 6367 is initialised to -1 but X509_time_adj() now has to check the value 6368 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 6369 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 6370 [Steve Henson, reported by Kenneth R. Robinette 6371 <support@securenetterm.com>] 6372 6373 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 6374 result in a zero length in the ASN1_INTEGER structure which was 6375 not consistent with the structure when d2i_ASN1_INTEGER() was used 6376 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 6377 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 6378 where it did not print out a minus for negative ASN1_INTEGER. 6379 [Steve Henson] 6380 6381 *) Add summary printout to ocsp utility. The various functions which 6382 convert status values to strings have been renamed to: 6383 OCSP_response_status_str(), OCSP_cert_status_str() and 6384 OCSP_crl_reason_str() and are no longer static. New options 6385 to verify nonce values and to disable verification. OCSP response 6386 printout format cleaned up. 6387 [Steve Henson] 6388 6389 *) Add additional OCSP certificate checks. These are those specified 6390 in RFC2560. This consists of two separate checks: the CA of the 6391 certificate being checked must either be the OCSP signer certificate 6392 or the issuer of the OCSP signer certificate. In the latter case the 6393 OCSP signer certificate must contain the OCSP signing extended key 6394 usage. This check is performed by attempting to match the OCSP 6395 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 6396 in the OCSP_CERTID structures of the response. 6397 [Steve Henson] 6398 6399 *) Initial OCSP certificate verification added to OCSP_basic_verify() 6400 and related routines. This uses the standard OpenSSL certificate 6401 verify routines to perform initial checks (just CA validity) and 6402 to obtain the certificate chain. Then additional checks will be 6403 performed on the chain. Currently the root CA is checked to see 6404 if it is explicitly trusted for OCSP signing. This is used to set 6405 a root CA as a global signing root: that is any certificate that 6406 chains to that CA is an acceptable OCSP signing certificate. 6407 [Steve Henson] 6408 6409 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 6410 extensions from a separate configuration file. 6411 As when reading extensions from the main configuration file, 6412 the '-extensions ...' option may be used for specifying the 6413 section to use. 6414 [Massimiliano Pala <madwolf@comune.modena.it>] 6415 6416 *) New OCSP utility. Allows OCSP requests to be generated or 6417 read. The request can be sent to a responder and the output 6418 parsed, outputed or printed in text form. Not complete yet: 6419 still needs to check the OCSP response validity. 6420 [Steve Henson] 6421 6422 *) New subcommands for 'openssl ca': 6423 'openssl ca -status <serial>' prints the status of the cert with 6424 the given serial number (according to the index file). 6425 'openssl ca -updatedb' updates the expiry status of certificates 6426 in the index file. 6427 [Massimiliano Pala <madwolf@comune.modena.it>] 6428 6429 *) New '-newreq-nodes' command option to CA.pl. This is like 6430 '-newreq', but calls 'openssl req' with the '-nodes' option 6431 so that the resulting key is not encrypted. 6432 [Damien Miller <djm@mindrot.org>] 6433 6434 *) New configuration for the GNU Hurd. 6435 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 6436 6437 *) Initial code to implement OCSP basic response verify. This 6438 is currently incomplete. Currently just finds the signer's 6439 certificate and verifies the signature on the response. 6440 [Steve Henson] 6441 6442 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 6443 value of OPENSSLDIR. This is available via the new '-d' option 6444 to 'openssl version', and is also included in 'openssl version -a'. 6445 [Bodo Moeller] 6446 6447 *) Allowing defining memory allocation callbacks that will be given 6448 file name and line number information in additional arguments 6449 (a const char* and an int). The basic functionality remains, as 6450 well as the original possibility to just replace malloc(), 6451 realloc() and free() by functions that do not know about these 6452 additional arguments. To register and find out the current 6453 settings for extended allocation functions, the following 6454 functions are provided: 6455 6456 CRYPTO_set_mem_ex_functions 6457 CRYPTO_set_locked_mem_ex_functions 6458 CRYPTO_get_mem_ex_functions 6459 CRYPTO_get_locked_mem_ex_functions 6460 6461 These work the same way as CRYPTO_set_mem_functions and friends. 6462 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 6463 extended allocation function is enabled. 6464 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 6465 a conventional allocation function is enabled. 6466 [Richard Levitte, Bodo Moeller] 6467 6468 *) Finish off removing the remaining LHASH function pointer casts. 6469 There should no longer be any prototype-casting required when using 6470 the LHASH abstraction, and any casts that remain are "bugs". See 6471 the callback types and macros at the head of lhash.h for details 6472 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 6473 [Geoff Thorpe] 6474 6475 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 6476 If /dev/[u]random devices are not available or do not return enough 6477 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 6478 be queried. 6479 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 6480 /etc/entropy will be queried once each in this sequence, quering stops 6481 when enough entropy was collected without querying more sockets. 6482 [Lutz Jaenicke] 6483 6484 *) Change the Unix RAND_poll() variant to be able to poll several 6485 random devices, as specified by DEVRANDOM, until a sufficient amount 6486 of data has been collected. We spend at most 10 ms on each file 6487 (select timeout) and read in non-blocking mode. DEVRANDOM now 6488 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 6489 (previously it was just the string "/dev/urandom"), so on typical 6490 platforms the 10 ms delay will never occur. 6491 Also separate out the Unix variant to its own file, rand_unix.c. 6492 For VMS, there's a currently-empty rand_vms.c. 6493 [Richard Levitte] 6494 6495 *) Move OCSP client related routines to ocsp_cl.c. These 6496 provide utility functions which an application needing 6497 to issue a request to an OCSP responder and analyse the 6498 response will typically need: as opposed to those which an 6499 OCSP responder itself would need which will be added later. 6500 6501 OCSP_request_sign() signs an OCSP request with an API similar 6502 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 6503 response. OCSP_response_get1_basic() extracts basic response 6504 from response. OCSP_resp_find_status(): finds and extracts status 6505 information from an OCSP_CERTID structure (which will be created 6506 when the request structure is built). These are built from lower 6507 level functions which work on OCSP_SINGLERESP structures but 6508 wont normally be used unless the application wishes to examine 6509 extensions in the OCSP response for example. 6510 6511 Replace nonce routines with a pair of functions. 6512 OCSP_request_add1_nonce() adds a nonce value and optionally 6513 generates a random value. OCSP_check_nonce() checks the 6514 validity of the nonce in an OCSP response. 6515 [Steve Henson] 6516 6517 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 6518 This doesn't copy the supplied OCSP_CERTID and avoids the 6519 need to free up the newly created id. Change return type 6520 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 6521 This can then be used to add extensions to the request. 6522 Deleted OCSP_request_new(), since most of its functionality 6523 is now in OCSP_REQUEST_new() (and the case insensitive name 6524 clash) apart from the ability to set the request name which 6525 will be added elsewhere. 6526 [Steve Henson] 6527 6528 *) Update OCSP API. Remove obsolete extensions argument from 6529 various functions. Extensions are now handled using the new 6530 OCSP extension code. New simple OCSP HTTP function which 6531 can be used to send requests and parse the response. 6532 [Steve Henson] 6533 6534 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 6535 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 6536 uses the special reorder version of SET OF to sort the attributes 6537 and reorder them to match the encoded order. This resolves a long 6538 standing problem: a verify on a PKCS7 structure just after signing 6539 it used to fail because the attribute order did not match the 6540 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 6541 it uses the received order. This is necessary to tolerate some broken 6542 software that does not order SET OF. This is handled by encoding 6543 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 6544 to produce the required SET OF. 6545 [Steve Henson] 6546 6547 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 6548 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 6549 files to get correct declarations of the ASN.1 item variables. 6550 [Richard Levitte] 6551 6552 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 6553 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 6554 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 6555 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 6556 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 6557 ASN1_ITEM and no wrapper functions. 6558 [Steve Henson] 6559 6560 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 6561 replace the old function pointer based I/O routines. Change most of 6562 the *_d2i_bio() and *_d2i_fp() functions to use these. 6563 [Steve Henson] 6564 6565 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 6566 lines, recognice more "algorithms" that can be deselected, and make 6567 it complain about algorithm deselection that isn't recognised. 6568 [Richard Levitte] 6569 6570 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 6571 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 6572 to use new functions. Add NO_ASN1_OLD which can be set to remove 6573 some old style ASN1 functions: this can be used to determine if old 6574 code will still work when these eventually go away. 6575 [Steve Henson] 6576 6577 *) New extension functions for OCSP structures, these follow the 6578 same conventions as certificates and CRLs. 6579 [Steve Henson] 6580 6581 *) New function X509V3_add1_i2d(). This automatically encodes and 6582 adds an extension. Its behaviour can be customised with various 6583 flags to append, replace or delete. Various wrappers added for 6584 certifcates and CRLs. 6585 [Steve Henson] 6586 6587 *) Fix to avoid calling the underlying ASN1 print routine when 6588 an extension cannot be parsed. Correct a typo in the 6589 OCSP_SERVICELOC extension. Tidy up print OCSP format. 6590 [Steve Henson] 6591 6592 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 6593 entries for variables. 6594 [Steve Henson] 6595 6596 *) Add functionality to apps/openssl.c for detecting locking 6597 problems: As the program is single-threaded, all we have 6598 to do is register a locking callback using an array for 6599 storing which locks are currently held by the program. 6600 [Bodo Moeller] 6601 6602 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 6603 SSL_get_ex_data_X509_STORE_idx(), which is used in 6604 ssl_verify_cert_chain() and thus can be called at any time 6605 during TLS/SSL handshakes so that thread-safety is essential. 6606 Unfortunately, the ex_data design is not at all suited 6607 for multi-threaded use, so it probably should be abolished. 6608 [Bodo Moeller] 6609 6610 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 6611 [Broadcom, tweaked and integrated by Geoff Thorpe] 6612 6613 *) Move common extension printing code to new function 6614 X509V3_print_extensions(). Reorganise OCSP print routines and 6615 implement some needed OCSP ASN1 functions. Add OCSP extensions. 6616 [Steve Henson] 6617 6618 *) New function X509_signature_print() to remove duplication in some 6619 print routines. 6620 [Steve Henson] 6621 6622 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 6623 set (this was treated exactly the same as SET OF previously). This 6624 is used to reorder the STACK representing the structure to match the 6625 encoding. This will be used to get round a problem where a PKCS7 6626 structure which was signed could not be verified because the STACK 6627 order did not reflect the encoded order. 6628 [Steve Henson] 6629 6630 *) Reimplement the OCSP ASN1 module using the new code. 6631 [Steve Henson] 6632 6633 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 6634 for its ASN1 operations. The old style function pointers still exist 6635 for now but they will eventually go away. 6636 [Steve Henson] 6637 6638 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 6639 completely replaces the old ASN1 functionality with a table driven 6640 encoder and decoder which interprets an ASN1_ITEM structure describing 6641 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 6642 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 6643 has also been converted to the new form. 6644 [Steve Henson] 6645 6646 *) Change BN_mod_exp_recp so that negative moduli are tolerated 6647 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 6648 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 6649 for negative moduli. 6650 [Bodo Moeller] 6651 6652 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 6653 of not touching the result's sign bit. 6654 [Bodo Moeller] 6655 6656 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 6657 set. 6658 [Bodo Moeller] 6659 6660 *) Changed the LHASH code to use prototypes for callbacks, and created 6661 macros to declare and implement thin (optionally static) functions 6662 that provide type-safety and avoid function pointer casting for the 6663 type-specific callbacks. 6664 [Geoff Thorpe] 6665 6666 *) Added Kerberos Cipher Suites to be used with TLS, as written in 6667 RFC 2712. 6668 [Veers Staats <staatsvr@asc.hpc.mil>, 6669 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 6670 6671 *) Reformat the FAQ so the different questions and answers can be divided 6672 in sections depending on the subject. 6673 [Richard Levitte] 6674 6675 *) Have the zlib compression code load ZLIB.DLL dynamically under 6676 Windows. 6677 [Richard Levitte] 6678 6679 *) New function BN_mod_sqrt for computing square roots modulo a prime 6680 (using the probabilistic Tonelli-Shanks algorithm unless 6681 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 6682 be handled deterministically). 6683 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6684 6685 *) Make BN_mod_inverse faster by explicitly handling small quotients 6686 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 6687 512 bits], about 30% for larger ones [1024 or 2048 bits].) 6688 [Bodo Moeller] 6689 6690 *) New function BN_kronecker. 6691 [Bodo Moeller] 6692 6693 *) Fix BN_gcd so that it works on negative inputs; the result is 6694 positive unless both parameters are zero. 6695 Previously something reasonably close to an infinite loop was 6696 possible because numbers could be growing instead of shrinking 6697 in the implementation of Euclid's algorithm. 6698 [Bodo Moeller] 6699 6700 *) Fix BN_is_word() and BN_is_one() macros to take into account the 6701 sign of the number in question. 6702 6703 Fix BN_is_word(a,w) to work correctly for w == 0. 6704 6705 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 6706 because its test if the absolute value of 'a' equals 'w'. 6707 Note that BN_abs_is_word does *not* handle w == 0 reliably; 6708 it exists mostly for use in the implementations of BN_is_zero(), 6709 BN_is_one(), and BN_is_word(). 6710 [Bodo Moeller] 6711 6712 *) New function BN_swap. 6713 [Bodo Moeller] 6714 6715 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 6716 the exponentiation functions are more likely to produce reasonable 6717 results on negative inputs. 6718 [Bodo Moeller] 6719 6720 *) Change BN_mod_mul so that the result is always non-negative. 6721 Previously, it could be negative if one of the factors was negative; 6722 I don't think anyone really wanted that behaviour. 6723 [Bodo Moeller] 6724 6725 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 6726 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 6727 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 6728 and add new functions: 6729 6730 BN_nnmod 6731 BN_mod_sqr 6732 BN_mod_add 6733 BN_mod_add_quick 6734 BN_mod_sub 6735 BN_mod_sub_quick 6736 BN_mod_lshift1 6737 BN_mod_lshift1_quick 6738 BN_mod_lshift 6739 BN_mod_lshift_quick 6740 6741 These functions always generate non-negative results. 6742 6743 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 6744 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 6745 6746 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 6747 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 6748 be reduced modulo m. 6749 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6750 6751#if 0 6752 The following entry accidentily appeared in the CHANGES file 6753 distributed with OpenSSL 0.9.7. The modifications described in 6754 it do *not* apply to OpenSSL 0.9.7. 6755 6756 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 6757 was actually never needed) and in BN_mul(). The removal in BN_mul() 6758 required a small change in bn_mul_part_recursive() and the addition 6759 of the functions bn_cmp_part_words(), bn_sub_part_words() and 6760 bn_add_part_words(), which do the same thing as bn_cmp_words(), 6761 bn_sub_words() and bn_add_words() except they take arrays with 6762 differing sizes. 6763 [Richard Levitte] 6764#endif 6765 6766 *) In 'openssl passwd', verify passwords read from the terminal 6767 unless the '-salt' option is used (which usually means that 6768 verification would just waste user's time since the resulting 6769 hash is going to be compared with some given password hash) 6770 or the new '-noverify' option is used. 6771 6772 This is an incompatible change, but it does not affect 6773 non-interactive use of 'openssl passwd' (passwords on the command 6774 line, '-stdin' option, '-in ...' option) and thus should not 6775 cause any problems. 6776 [Bodo Moeller] 6777 6778 *) Remove all references to RSAref, since there's no more need for it. 6779 [Richard Levitte] 6780 6781 *) Make DSO load along a path given through an environment variable 6782 (SHLIB_PATH) with shl_load(). 6783 [Richard Levitte] 6784 6785 *) Constify the ENGINE code as a result of BIGNUM constification. 6786 Also constify the RSA code and most things related to it. In a 6787 few places, most notable in the depth of the ASN.1 code, ugly 6788 casts back to non-const were required (to be solved at a later 6789 time) 6790 [Richard Levitte] 6791 6792 *) Make it so the openssl application has all engines loaded by default. 6793 [Richard Levitte] 6794 6795 *) Constify the BIGNUM routines a little more. 6796 [Richard Levitte] 6797 6798 *) Add the following functions: 6799 6800 ENGINE_load_cswift() 6801 ENGINE_load_chil() 6802 ENGINE_load_atalla() 6803 ENGINE_load_nuron() 6804 ENGINE_load_builtin_engines() 6805 6806 That way, an application can itself choose if external engines that 6807 are built-in in OpenSSL shall ever be used or not. The benefit is 6808 that applications won't have to be linked with libdl or other dso 6809 libraries unless it's really needed. 6810 6811 Changed 'openssl engine' to load all engines on demand. 6812 Changed the engine header files to avoid the duplication of some 6813 declarations (they differed!). 6814 [Richard Levitte] 6815 6816 *) 'openssl engine' can now list capabilities. 6817 [Richard Levitte] 6818 6819 *) Better error reporting in 'openssl engine'. 6820 [Richard Levitte] 6821 6822 *) Never call load_dh_param(NULL) in s_server. 6823 [Bodo Moeller] 6824 6825 *) Add engine application. It can currently list engines by name and 6826 identity, and test if they are actually available. 6827 [Richard Levitte] 6828 6829 *) Improve RPM specification file by forcing symbolic linking and making 6830 sure the installed documentation is also owned by root.root. 6831 [Damien Miller <djm@mindrot.org>] 6832 6833 *) Give the OpenSSL applications more possibilities to make use of 6834 keys (public as well as private) handled by engines. 6835 [Richard Levitte] 6836 6837 *) Add OCSP code that comes from CertCo. 6838 [Richard Levitte] 6839 6840 *) Add VMS support for the Rijndael code. 6841 [Richard Levitte] 6842 6843 *) Added untested support for Nuron crypto accelerator. 6844 [Ben Laurie] 6845 6846 *) Add support for external cryptographic devices. This code was 6847 previously distributed separately as the "engine" branch. 6848 [Geoff Thorpe, Richard Levitte] 6849 6850 *) Rework the filename-translation in the DSO code. It is now possible to 6851 have far greater control over how a "name" is turned into a filename 6852 depending on the operating environment and any oddities about the 6853 different shared library filenames on each system. 6854 [Geoff Thorpe] 6855 6856 *) Support threads on FreeBSD-elf in Configure. 6857 [Richard Levitte] 6858 6859 *) Fix for SHA1 assembly problem with MASM: it produces 6860 warnings about corrupt line number information when assembling 6861 with debugging information. This is caused by the overlapping 6862 of two sections. 6863 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 6864 6865 *) NCONF changes. 6866 NCONF_get_number() has no error checking at all. As a replacement, 6867 NCONF_get_number_e() is defined (_e for "error checking") and is 6868 promoted strongly. The old NCONF_get_number is kept around for 6869 binary backward compatibility. 6870 Make it possible for methods to load from something other than a BIO, 6871 by providing a function pointer that is given a name instead of a BIO. 6872 For example, this could be used to load configuration data from an 6873 LDAP server. 6874 [Richard Levitte] 6875 6876 *) Fix for non blocking accept BIOs. Added new I/O special reason 6877 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 6878 with non blocking I/O was not possible because no retry code was 6879 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 6880 this case. 6881 [Steve Henson] 6882 6883 *) Added the beginnings of Rijndael support. 6884 [Ben Laurie] 6885 6886 *) Fix for bug in DirectoryString mask setting. Add support for 6887 X509_NAME_print_ex() in 'req' and X509_print_ex() function 6888 to allow certificate printing to more controllable, additional 6889 'certopt' option to 'x509' to allow new printing options to be 6890 set. 6891 [Steve Henson] 6892 6893 *) Clean old EAY MD5 hack from e_os.h. 6894 [Richard Levitte] 6895 6896 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 6897 6898 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 6899 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 6900 [Joe Orton, Steve Henson] 6901 6902 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 6903 6904 *) Fix additional bug revealed by the NISCC test suite: 6905 6906 Stop bug triggering large recursion when presented with 6907 certain ASN.1 tags (CVE-2003-0851) 6908 [Steve Henson] 6909 6910 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 6911 6912 *) Fix various bugs revealed by running the NISCC test suite: 6913 6914 Stop out of bounds reads in the ASN1 code when presented with 6915 invalid tags (CVE-2003-0543 and CVE-2003-0544). 6916 6917 If verify callback ignores invalid public key errors don't try to check 6918 certificate signature with the NULL public key. 6919 6920 [Steve Henson] 6921 6922 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 6923 if the server requested one: as stated in TLS 1.0 and SSL 3.0 6924 specifications. 6925 [Steve Henson] 6926 6927 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 6928 extra data after the compression methods not only for TLS 1.0 6929 but also for SSL 3.0 (as required by the specification). 6930 [Bodo Moeller; problem pointed out by Matthias Loepfe] 6931 6932 *) Change X509_certificate_type() to mark the key as exported/exportable 6933 when it's 512 *bits* long, not 512 bytes. 6934 [Richard Levitte] 6935 6936 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 6937 6938 *) Countermeasure against the Klima-Pokorny-Rosa extension of 6939 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 6940 a protocol version number mismatch like a decryption error 6941 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 6942 [Bodo Moeller] 6943 6944 *) Turn on RSA blinding by default in the default implementation 6945 to avoid a timing attack. Applications that don't want it can call 6946 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 6947 They would be ill-advised to do so in most cases. 6948 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 6949 6950 *) Change RSA blinding code so that it works when the PRNG is not 6951 seeded (in this case, the secret RSA exponent is abused as 6952 an unpredictable seed -- if it is not unpredictable, there 6953 is no point in blinding anyway). Make RSA blinding thread-safe 6954 by remembering the creator's thread ID in rsa->blinding and 6955 having all other threads use local one-time blinding factors 6956 (this requires more computation than sharing rsa->blinding, but 6957 avoids excessive locking; and if an RSA object is not shared 6958 between threads, blinding will still be very fast). 6959 [Bodo Moeller] 6960 6961 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 6962 6963 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 6964 via timing by performing a MAC computation even if incorrrect 6965 block cipher padding has been found. This is a countermeasure 6966 against active attacks where the attacker has to distinguish 6967 between bad padding and a MAC verification error. (CVE-2003-0078) 6968 6969 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 6970 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 6971 Martin Vuagnoux (EPFL, Ilion)] 6972 6973 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 6974 6975 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 6976 memory from it's contents. This is done with a counter that will 6977 place alternating values in each byte. This can be used to solve 6978 two issues: 1) the removal of calls to memset() by highly optimizing 6979 compilers, and 2) cleansing with other values than 0, since those can 6980 be read through on certain media, for example a swap space on disk. 6981 [Geoff Thorpe] 6982 6983 *) Bugfix: client side session caching did not work with external caching, 6984 because the session->cipher setting was not restored when reloading 6985 from the external cache. This problem was masked, when 6986 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 6987 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 6988 [Lutz Jaenicke] 6989 6990 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 6991 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 6992 [Zeev Lieber <zeev-l@yahoo.com>] 6993 6994 *) Undo an undocumented change introduced in 0.9.6e which caused 6995 repeated calls to OpenSSL_add_all_ciphers() and 6996 OpenSSL_add_all_digests() to be ignored, even after calling 6997 EVP_cleanup(). 6998 [Richard Levitte] 6999 7000 *) Change the default configuration reader to deal with last line not 7001 being properly terminated. 7002 [Richard Levitte] 7003 7004 *) Change X509_NAME_cmp() so it applies the special rules on handling 7005 DN values that are of type PrintableString, as well as RDNs of type 7006 emailAddress where the value has the type ia5String. 7007 [stefank@valicert.com via Richard Levitte] 7008 7009 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 7010 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 7011 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 7012 the bitwise-OR of the two for use by the majority of applications 7013 wanting this behaviour, and update the docs. The documented 7014 behaviour and actual behaviour were inconsistent and had been 7015 changing anyway, so this is more a bug-fix than a behavioural 7016 change. 7017 [Geoff Thorpe, diagnosed by Nadav Har'El] 7018 7019 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 7020 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 7021 [Bodo Moeller] 7022 7023 *) Fix initialization code race conditions in 7024 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 7025 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 7026 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 7027 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 7028 ssl2_get_cipher_by_char(), 7029 ssl3_get_cipher_by_char(). 7030 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 7031 7032 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 7033 the cached sessions are flushed, as the remove_cb() might use ex_data 7034 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 7035 (see [openssl.org #212]). 7036 [Geoff Thorpe, Lutz Jaenicke] 7037 7038 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 7039 length, instead of the encoding length to d2i_ASN1_OBJECT. 7040 [Steve Henson] 7041 7042 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 7043 7044 *) [In 0.9.6g-engine release:] 7045 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 7046 [Lynn Gazis <lgazis@rainbow.com>] 7047 7048 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 7049 7050 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 7051 and get fix the header length calculation. 7052 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 7053 Alon Kantor <alonk@checkpoint.com> (and others), 7054 Steve Henson] 7055 7056 *) Use proper error handling instead of 'assertions' in buffer 7057 overflow checks added in 0.9.6e. This prevents DoS (the 7058 assertions could call abort()). 7059 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 7060 7061 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 7062 7063 *) Add various sanity checks to asn1_get_length() to reject 7064 the ASN1 length bytes if they exceed sizeof(long), will appear 7065 negative or the content length exceeds the length of the 7066 supplied buffer. 7067 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 7068 7069 *) Fix cipher selection routines: ciphers without encryption had no flags 7070 for the cipher strength set and where therefore not handled correctly 7071 by the selection routines (PR #130). 7072 [Lutz Jaenicke] 7073 7074 *) Fix EVP_dsa_sha macro. 7075 [Nils Larsch] 7076 7077 *) New option 7078 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 7079 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 7080 that was added in OpenSSL 0.9.6d. 7081 7082 As the countermeasure turned out to be incompatible with some 7083 broken SSL implementations, the new option is part of SSL_OP_ALL. 7084 SSL_OP_ALL is usually employed when compatibility with weird SSL 7085 implementations is desired (e.g. '-bugs' option to 's_client' and 7086 's_server'), so the new option is automatically set in many 7087 applications. 7088 [Bodo Moeller] 7089 7090 *) Changes in security patch: 7091 7092 Changes marked "(CHATS)" were sponsored by the Defense Advanced 7093 Research Projects Agency (DARPA) and Air Force Research Laboratory, 7094 Air Force Materiel Command, USAF, under agreement number 7095 F30602-01-2-0537. 7096 7097 *) Add various sanity checks to asn1_get_length() to reject 7098 the ASN1 length bytes if they exceed sizeof(long), will appear 7099 negative or the content length exceeds the length of the 7100 supplied buffer. (CVE-2002-0659) 7101 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 7102 7103 *) Assertions for various potential buffer overflows, not known to 7104 happen in practice. 7105 [Ben Laurie (CHATS)] 7106 7107 *) Various temporary buffers to hold ASCII versions of integers were 7108 too small for 64 bit platforms. (CVE-2002-0655) 7109 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 7110 7111 *) Remote buffer overflow in SSL3 protocol - an attacker could 7112 supply an oversized session ID to a client. (CVE-2002-0656) 7113 [Ben Laurie (CHATS)] 7114 7115 *) Remote buffer overflow in SSL2 protocol - an attacker could 7116 supply an oversized client master key. (CVE-2002-0656) 7117 [Ben Laurie (CHATS)] 7118 7119 Changes between 0.9.6c and 0.9.6d [9 May 2002] 7120 7121 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 7122 encoded as NULL) with id-dsa-with-sha1. 7123 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 7124 7125 *) Check various X509_...() return values in apps/req.c. 7126 [Nils Larsch <nla@trustcenter.de>] 7127 7128 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 7129 an end-of-file condition would erronously be flagged, when the CRLF 7130 was just at the end of a processed block. The bug was discovered when 7131 processing data through a buffering memory BIO handing the data to a 7132 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 7133 <ptsekov@syntrex.com> and Nedelcho Stanev. 7134 [Lutz Jaenicke] 7135 7136 *) Implement a countermeasure against a vulnerability recently found 7137 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 7138 before application data chunks to avoid the use of known IVs 7139 with data potentially chosen by the attacker. 7140 [Bodo Moeller] 7141 7142 *) Fix length checks in ssl3_get_client_hello(). 7143 [Bodo Moeller] 7144 7145 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 7146 to prevent ssl3_read_internal() from incorrectly assuming that 7147 ssl3_read_bytes() found application data while handshake 7148 processing was enabled when in fact s->s3->in_read_app_data was 7149 merely automatically cleared during the initial handshake. 7150 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 7151 7152 *) Fix object definitions for Private and Enterprise: they were not 7153 recognized in their shortname (=lowercase) representation. Extend 7154 obj_dat.pl to issue an error when using undefined keywords instead 7155 of silently ignoring the problem (Svenning Sorensen 7156 <sss@sss.dnsalias.net>). 7157 [Lutz Jaenicke] 7158 7159 *) Fix DH_generate_parameters() so that it works for 'non-standard' 7160 generators, i.e. generators other than 2 and 5. (Previously, the 7161 code did not properly initialise the 'add' and 'rem' values to 7162 BN_generate_prime().) 7163 7164 In the new general case, we do not insist that 'generator' is 7165 actually a primitive root: This requirement is rather pointless; 7166 a generator of the order-q subgroup is just as good, if not 7167 better. 7168 [Bodo Moeller] 7169 7170 *) Map new X509 verification errors to alerts. Discovered and submitted by 7171 Tom Wu <tom@arcot.com>. 7172 [Lutz Jaenicke] 7173 7174 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 7175 returning non-zero before the data has been completely received 7176 when using non-blocking I/O. 7177 [Bodo Moeller; problem pointed out by John Hughes] 7178 7179 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 7180 [Ben Laurie, Lutz Jaenicke] 7181 7182 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 7183 Yoram Zahavi <YoramZ@gilian.com>). 7184 [Lutz Jaenicke] 7185 7186 *) Add information about CygWin 1.3 and on, and preserve proper 7187 configuration for the versions before that. 7188 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 7189 7190 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 7191 check whether we deal with a copy of a session and do not delete from 7192 the cache in this case. Problem reported by "Izhar Shoshani Levi" 7193 <izhar@checkpoint.com>. 7194 [Lutz Jaenicke] 7195 7196 *) Do not store session data into the internal session cache, if it 7197 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 7198 flag is set). Proposed by Aslam <aslam@funk.com>. 7199 [Lutz Jaenicke] 7200 7201 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 7202 value is 0. 7203 [Richard Levitte] 7204 7205 *) [In 0.9.6d-engine release:] 7206 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 7207 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 7208 7209 *) Add the configuration target linux-s390x. 7210 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 7211 7212 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 7213 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 7214 variable as an indication that a ClientHello message has been 7215 received. As the flag value will be lost between multiple 7216 invocations of ssl3_accept when using non-blocking I/O, the 7217 function may not be aware that a handshake has actually taken 7218 place, thus preventing a new session from being added to the 7219 session cache. 7220 7221 To avoid this problem, we now set s->new_session to 2 instead of 7222 using a local variable. 7223 [Lutz Jaenicke, Bodo Moeller] 7224 7225 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 7226 if the SSL_R_LENGTH_MISMATCH error is detected. 7227 [Geoff Thorpe, Bodo Moeller] 7228 7229 *) New 'shared_ldflag' column in Configure platform table. 7230 [Richard Levitte] 7231 7232 *) Fix EVP_CIPHER_mode macro. 7233 ["Dan S. Camper" <dan@bti.net>] 7234 7235 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 7236 type, we must throw them away by setting rr->length to 0. 7237 [D P Chang <dpc@qualys.com>] 7238 7239 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 7240 7241 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 7242 <Dominikus.Scherkl@biodata.com>. (The previous implementation 7243 worked incorrectly for those cases where range = 10..._2 and 7244 3*range is two bits longer than range.) 7245 [Bodo Moeller] 7246 7247 *) Only add signing time to PKCS7 structures if it is not already 7248 present. 7249 [Steve Henson] 7250 7251 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 7252 OBJ_ld_ce should be OBJ_id_ce. 7253 Also some ip-pda OIDs in crypto/objects/objects.txt were 7254 incorrect (cf. RFC 3039). 7255 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 7256 7257 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 7258 returns early because it has nothing to do. 7259 [Andy Schneider <andy.schneider@bjss.co.uk>] 7260 7261 *) [In 0.9.6c-engine release:] 7262 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 7263 [Andy Schneider <andy.schneider@bjss.co.uk>] 7264 7265 *) [In 0.9.6c-engine release:] 7266 Add support for Cryptographic Appliance's keyserver technology. 7267 (Use engine 'keyclient') 7268 [Cryptographic Appliances and Geoff Thorpe] 7269 7270 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 7271 is called via tools/c89.sh because arguments have to be 7272 rearranged (all '-L' options must appear before the first object 7273 modules). 7274 [Richard Shapiro <rshapiro@abinitio.com>] 7275 7276 *) [In 0.9.6c-engine release:] 7277 Add support for Broadcom crypto accelerator cards, backported 7278 from 0.9.7. 7279 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 7280 7281 *) [In 0.9.6c-engine release:] 7282 Add support for SureWare crypto accelerator cards from 7283 Baltimore Technologies. (Use engine 'sureware') 7284 [Baltimore Technologies and Mark Cox] 7285 7286 *) [In 0.9.6c-engine release:] 7287 Add support for crypto accelerator cards from Accelerated 7288 Encryption Processing, www.aep.ie. (Use engine 'aep') 7289 [AEP Inc. and Mark Cox] 7290 7291 *) Add a configuration entry for gcc on UnixWare. 7292 [Gary Benson <gbenson@redhat.com>] 7293 7294 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 7295 messages are stored in a single piece (fixed-length part and 7296 variable-length part combined) and fix various bugs found on the way. 7297 [Bodo Moeller] 7298 7299 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 7300 instead. BIO_gethostbyname() does not know what timeouts are 7301 appropriate, so entries would stay in cache even when they have 7302 become invalid. 7303 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 7304 7305 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 7306 faced with a pathologically small ClientHello fragment that does 7307 not contain client_version: Instead of aborting with an error, 7308 simply choose the highest available protocol version (i.e., 7309 TLS 1.0 unless it is disabled). In practice, ClientHello 7310 messages are never sent like this, but this change gives us 7311 strictly correct behaviour at least for TLS. 7312 [Bodo Moeller] 7313 7314 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 7315 never resets s->method to s->ctx->method when called from within 7316 one of the SSL handshake functions. 7317 [Bodo Moeller; problem pointed out by Niko Baric] 7318 7319 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 7320 (sent using the client's version number) if client_version is 7321 smaller than the protocol version in use. Also change 7322 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 7323 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 7324 the client will at least see that alert. 7325 [Bodo Moeller] 7326 7327 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 7328 correctly. 7329 [Bodo Moeller] 7330 7331 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 7332 client receives HelloRequest while in a handshake. 7333 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 7334 7335 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 7336 should end in 'break', not 'goto end' which circuments various 7337 cleanups done in state SSL_ST_OK. But session related stuff 7338 must be disabled for SSL_ST_OK in the case that we just sent a 7339 HelloRequest. 7340 7341 Also avoid some overhead by not calling ssl_init_wbio_buffer() 7342 before just sending a HelloRequest. 7343 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 7344 7345 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 7346 reveal whether illegal block cipher padding was found or a MAC 7347 verification error occured. (Neither SSLerr() codes nor alerts 7348 are directly visible to potential attackers, but the information 7349 may leak via logfiles.) 7350 7351 Similar changes are not required for the SSL 2.0 implementation 7352 because the number of padding bytes is sent in clear for SSL 2.0, 7353 and the extra bytes are just ignored. However ssl/s2_pkt.c 7354 failed to verify that the purported number of padding bytes is in 7355 the legal range. 7356 [Bodo Moeller] 7357 7358 *) Add OpenUNIX-8 support including shared libraries 7359 (Boyd Lynn Gerber <gerberb@zenez.com>). 7360 [Lutz Jaenicke] 7361 7362 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 7363 'wristwatch attack' using huge encoding parameters (cf. 7364 James H. Manger's CRYPTO 2001 paper). Note that the 7365 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 7366 encoding parameters and hence was not vulnerable. 7367 [Bodo Moeller] 7368 7369 *) BN_sqr() bug fix. 7370 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>] 7371 7372 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 7373 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 7374 followed by modular reduction. 7375 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 7376 7377 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 7378 equivalent based on BN_pseudo_rand() instead of BN_rand(). 7379 [Bodo Moeller] 7380 7381 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 7382 This function was broken, as the check for a new client hello message 7383 to handle SGC did not allow these large messages. 7384 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 7385 [Lutz Jaenicke] 7386 7387 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 7388 [Lutz Jaenicke] 7389 7390 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 7391 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 7392 [Lutz Jaenicke] 7393 7394 *) Rework the configuration and shared library support for Tru64 Unix. 7395 The configuration part makes use of modern compiler features and 7396 still retains old compiler behavior for those that run older versions 7397 of the OS. The shared library support part includes a variant that 7398 uses the RPATH feature, and is available through the special 7399 configuration target "alpha-cc-rpath", which will never be selected 7400 automatically. 7401 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 7402 7403 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 7404 with the same message size as in ssl3_get_certificate_request(). 7405 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 7406 messages might inadvertently be reject as too long. 7407 [Petr Lampa <lampa@fee.vutbr.cz>] 7408 7409 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 7410 [Andy Polyakov] 7411 7412 *) Modified SSL library such that the verify_callback that has been set 7413 specificly for an SSL object with SSL_set_verify() is actually being 7414 used. Before the change, a verify_callback set with this function was 7415 ignored and the verify_callback() set in the SSL_CTX at the time of 7416 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 7417 to allow the necessary settings. 7418 [Lutz Jaenicke] 7419 7420 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 7421 explicitly to NULL, as at least on Solaris 8 this seems not always to be 7422 done automatically (in contradiction to the requirements of the C 7423 standard). This made problems when used from OpenSSH. 7424 [Lutz Jaenicke] 7425 7426 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 7427 dh->length and always used 7428 7429 BN_rand_range(priv_key, dh->p). 7430 7431 BN_rand_range() is not necessary for Diffie-Hellman, and this 7432 specific range makes Diffie-Hellman unnecessarily inefficient if 7433 dh->length (recommended exponent length) is much smaller than the 7434 length of dh->p. We could use BN_rand_range() if the order of 7435 the subgroup was stored in the DH structure, but we only have 7436 dh->length. 7437 7438 So switch back to 7439 7440 BN_rand(priv_key, l, ...) 7441 7442 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 7443 otherwise. 7444 [Bodo Moeller] 7445 7446 *) In 7447 7448 RSA_eay_public_encrypt 7449 RSA_eay_private_decrypt 7450 RSA_eay_private_encrypt (signing) 7451 RSA_eay_public_decrypt (signature verification) 7452 7453 (default implementations for RSA_public_encrypt, 7454 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 7455 always reject numbers >= n. 7456 [Bodo Moeller] 7457 7458 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 7459 to synchronize access to 'locking_thread'. This is necessary on 7460 systems where access to 'locking_thread' (an 'unsigned long' 7461 variable) is not atomic. 7462 [Bodo Moeller] 7463 7464 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 7465 *before* setting the 'crypto_lock_rand' flag. The previous code had 7466 a race condition if 0 is a valid thread ID. 7467 [Travis Vitek <vitek@roguewave.com>] 7468 7469 *) Add support for shared libraries under Irix. 7470 [Albert Chin-A-Young <china@thewrittenword.com>] 7471 7472 *) Add configuration option to build on Linux on both big-endian and 7473 little-endian MIPS. 7474 [Ralf Baechle <ralf@uni-koblenz.de>] 7475 7476 *) Add the possibility to create shared libraries on HP-UX. 7477 [Richard Levitte] 7478 7479 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 7480 7481 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 7482 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 7483 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 7484 PRNG state recovery was possible based on the output of 7485 one PRNG request appropriately sized to gain knowledge on 7486 'md' followed by enough consecutive 1-byte PRNG requests 7487 to traverse all of 'state'. 7488 7489 1. When updating 'md_local' (the current thread's copy of 'md') 7490 during PRNG output generation, hash all of the previous 7491 'md_local' value, not just the half used for PRNG output. 7492 7493 2. Make the number of bytes from 'state' included into the hash 7494 independent from the number of PRNG bytes requested. 7495 7496 The first measure alone would be sufficient to avoid 7497 Markku-Juhani's attack. (Actually it had never occurred 7498 to me that the half of 'md_local' used for chaining was the 7499 half from which PRNG output bytes were taken -- I had always 7500 assumed that the secret half would be used.) The second 7501 measure makes sure that additional data from 'state' is never 7502 mixed into 'md_local' in small portions; this heuristically 7503 further strengthens the PRNG. 7504 [Bodo Moeller] 7505 7506 *) Fix crypto/bn/asm/mips3.s. 7507 [Andy Polyakov] 7508 7509 *) When only the key is given to "enc", the IV is undefined. Print out 7510 an error message in this case. 7511 [Lutz Jaenicke] 7512 7513 *) Handle special case when X509_NAME is empty in X509 printing routines. 7514 [Steve Henson] 7515 7516 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 7517 positive and less than q. 7518 [Bodo Moeller] 7519 7520 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 7521 used: it isn't thread safe and the add_lock_callback should handle 7522 that itself. 7523 [Paul Rose <Paul.Rose@bridge.com>] 7524 7525 *) Verify that incoming data obeys the block size in 7526 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 7527 [Bodo Moeller] 7528 7529 *) Fix OAEP check. 7530 [Ulf Möller, Bodo Möller] 7531 7532 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 7533 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 7534 when fixing the server behaviour for backwards-compatible 'client 7535 hello' messages. (Note that the attack is impractical against 7536 SSL 3.0 and TLS 1.0 anyway because length and version checking 7537 means that the probability of guessing a valid ciphertext is 7538 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 7539 paper.) 7540 7541 Before 0.9.5, the countermeasure (hide the error by generating a 7542 random 'decryption result') did not work properly because 7543 ERR_clear_error() was missing, meaning that SSL_get_error() would 7544 detect the supposedly ignored error. 7545 7546 Both problems are now fixed. 7547 [Bodo Moeller] 7548 7549 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 7550 (previously it was 1024). 7551 [Bodo Moeller] 7552 7553 *) Fix for compatibility mode trust settings: ignore trust settings 7554 unless some valid trust or reject settings are present. 7555 [Steve Henson] 7556 7557 *) Fix for blowfish EVP: its a variable length cipher. 7558 [Steve Henson] 7559 7560 *) Fix various bugs related to DSA S/MIME verification. Handle missing 7561 parameters in DSA public key structures and return an error in the 7562 DSA routines if parameters are absent. 7563 [Steve Henson] 7564 7565 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 7566 in the current directory if neither $RANDFILE nor $HOME was set. 7567 RAND_file_name() in 0.9.6a returned NULL in this case. This has 7568 caused some confusion to Windows users who haven't defined $HOME. 7569 Thus RAND_file_name() is changed again: e_os.h can define a 7570 DEFAULT_HOME, which will be used if $HOME is not set. 7571 For Windows, we use "C:"; on other platforms, we still require 7572 environment variables. 7573 7574 *) Move 'if (!initialized) RAND_poll()' into regions protected by 7575 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 7576 having multiple threads call RAND_poll() concurrently. 7577 [Bodo Moeller] 7578 7579 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 7580 combination of a flag and a thread ID variable. 7581 Otherwise while one thread is in ssleay_rand_bytes (which sets the 7582 flag), *other* threads can enter ssleay_add_bytes without obeying 7583 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 7584 that they do not hold after the first thread unsets add_do_not_lock). 7585 [Bodo Moeller] 7586 7587 *) Change bctest again: '-x' expressions are not available in all 7588 versions of 'test'. 7589 [Bodo Moeller] 7590 7591 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 7592 7593 *) Fix a couple of memory leaks in PKCS7_dataDecode() 7594 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 7595 7596 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 7597 the default extension for executables, if any. Also, make the perl 7598 scripts that use symlink() to test if it really exists and use "cp" 7599 if it doesn't. All this made OpenSSL compilable and installable in 7600 CygWin. 7601 [Richard Levitte] 7602 7603 *) Fix for asn1_GetSequence() for indefinite length constructed data. 7604 If SEQUENCE is length is indefinite just set c->slen to the total 7605 amount of data available. 7606 [Steve Henson, reported by shige@FreeBSD.org] 7607 [This change does not apply to 0.9.7.] 7608 7609 *) Change bctest to avoid here-documents inside command substitution 7610 (workaround for FreeBSD /bin/sh bug). 7611 For compatibility with Ultrix, avoid shell functions (introduced 7612 in the bctest version that searches along $PATH). 7613 [Bodo Moeller] 7614 7615 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 7616 with des_encrypt() defined on some operating systems, like Solaris 7617 and UnixWare. 7618 [Richard Levitte] 7619 7620 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 7621 On the Importance of Eliminating Errors in Cryptographic 7622 Computations, J. Cryptology 14 (2001) 2, 101-119, 7623 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 7624 [Ulf Moeller] 7625 7626 *) MIPS assembler BIGNUM division bug fix. 7627 [Andy Polyakov] 7628 7629 *) Disabled incorrect Alpha assembler code. 7630 [Richard Levitte] 7631 7632 *) Fix PKCS#7 decode routines so they correctly update the length 7633 after reading an EOC for the EXPLICIT tag. 7634 [Steve Henson] 7635 [This change does not apply to 0.9.7.] 7636 7637 *) Fix bug in PKCS#12 key generation routines. This was triggered 7638 if a 3DES key was generated with a 0 initial byte. Include 7639 PKCS12_BROKEN_KEYGEN compilation option to retain the old 7640 (but broken) behaviour. 7641 [Steve Henson] 7642 7643 *) Enhance bctest to search for a working bc along $PATH and print 7644 it when found. 7645 [Tim Rice <tim@multitalents.net> via Richard Levitte] 7646 7647 *) Fix memory leaks in err.c: free err_data string if necessary; 7648 don't write to the wrong index in ERR_set_error_data. 7649 [Bodo Moeller] 7650 7651 *) Implement ssl23_peek (analogous to ssl23_read), which previously 7652 did not exist. 7653 [Bodo Moeller] 7654 7655 *) Replace rdtsc with _emit statements for VC++ version 5. 7656 [Jeremy Cooper <jeremy@baymoo.org>] 7657 7658 *) Make it possible to reuse SSLv2 sessions. 7659 [Richard Levitte] 7660 7661 *) In copy_email() check for >= 0 as a return value for 7662 X509_NAME_get_index_by_NID() since 0 is a valid index. 7663 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 7664 7665 *) Avoid coredump with unsupported or invalid public keys by checking if 7666 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 7667 PKCS7_verify() fails with non detached data. 7668 [Steve Henson] 7669 7670 *) Don't use getenv in library functions when run as setuid/setgid. 7671 New function OPENSSL_issetugid(). 7672 [Ulf Moeller] 7673 7674 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 7675 due to incorrect handling of multi-threading: 7676 7677 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 7678 7679 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 7680 7681 3. Count how many times MemCheck_off() has been called so that 7682 nested use can be treated correctly. This also avoids 7683 inband-signalling in the previous code (which relied on the 7684 assumption that thread ID 0 is impossible). 7685 [Bodo Moeller] 7686 7687 *) Add "-rand" option also to s_client and s_server. 7688 [Lutz Jaenicke] 7689 7690 *) Fix CPU detection on Irix 6.x. 7691 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 7692 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7693 7694 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 7695 was empty. 7696 [Steve Henson] 7697 [This change does not apply to 0.9.7.] 7698 7699 *) Use the cached encoding of an X509_NAME structure rather than 7700 copying it. This is apparently the reason for the libsafe "errors" 7701 but the code is actually correct. 7702 [Steve Henson] 7703 7704 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 7705 Bleichenbacher's DSA attack. 7706 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 7707 to be set and top=0 forces the highest bit to be set; top=-1 is new 7708 and leaves the highest bit random. 7709 [Ulf Moeller, Bodo Moeller] 7710 7711 *) In the NCONF_...-based implementations for CONF_... queries 7712 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 7713 a temporary CONF structure with the data component set to NULL 7714 (which gives segmentation faults in lh_retrieve). 7715 Instead, use NULL for the CONF pointer in CONF_get_string and 7716 CONF_get_number (which may use environment variables) and directly 7717 return NULL from CONF_get_section. 7718 [Bodo Moeller] 7719 7720 *) Fix potential buffer overrun for EBCDIC. 7721 [Ulf Moeller] 7722 7723 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 7724 keyUsage if basicConstraints absent for a CA. 7725 [Steve Henson] 7726 7727 *) Make SMIME_write_PKCS7() write mail header values with a format that 7728 is more generally accepted (no spaces before the semicolon), since 7729 some programs can't parse those values properly otherwise. Also make 7730 sure BIO's that break lines after each write do not create invalid 7731 headers. 7732 [Richard Levitte] 7733 7734 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 7735 macros previously used would not encode an empty SEQUENCE OF 7736 and break the signature. 7737 [Steve Henson] 7738 [This change does not apply to 0.9.7.] 7739 7740 *) Zero the premaster secret after deriving the master secret in 7741 DH ciphersuites. 7742 [Steve Henson] 7743 7744 *) Add some EVP_add_digest_alias registrations (as found in 7745 OpenSSL_add_all_digests()) to SSL_library_init() 7746 aka OpenSSL_add_ssl_algorithms(). This provides improved 7747 compatibility with peers using X.509 certificates 7748 with unconventional AlgorithmIdentifier OIDs. 7749 [Bodo Moeller] 7750 7751 *) Fix for Irix with NO_ASM. 7752 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7753 7754 *) ./config script fixes. 7755 [Ulf Moeller, Richard Levitte] 7756 7757 *) Fix 'openssl passwd -1'. 7758 [Bodo Moeller] 7759 7760 *) Change PKCS12_key_gen_asc() so it can cope with non null 7761 terminated strings whose length is passed in the passlen 7762 parameter, for example from PEM callbacks. This was done 7763 by adding an extra length parameter to asc2uni(). 7764 [Steve Henson, reported by <oddissey@samsung.co.kr>] 7765 7766 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 7767 call failed, free the DSA structure. 7768 [Bodo Moeller] 7769 7770 *) Fix to uni2asc() to cope with zero length Unicode strings. 7771 These are present in some PKCS#12 files. 7772 [Steve Henson] 7773 7774 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 7775 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 7776 when writing a 32767 byte record. 7777 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 7778 7779 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 7780 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 7781 7782 (RSA objects have a reference count access to which is protected 7783 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 7784 so they are meant to be shared between threads.) 7785 [Bodo Moeller, Geoff Thorpe; original patch submitted by 7786 "Reddie, Steven" <Steven.Reddie@ca.com>] 7787 7788 *) Fix a deadlock in CRYPTO_mem_leaks(). 7789 [Bodo Moeller] 7790 7791 *) Use better test patterns in bntest. 7792 [Ulf Möller] 7793 7794 *) rand_win.c fix for Borland C. 7795 [Ulf Möller] 7796 7797 *) BN_rshift bugfix for n == 0. 7798 [Bodo Moeller] 7799 7800 *) Add a 'bctest' script that checks for some known 'bc' bugs 7801 so that 'make test' does not abort just because 'bc' is broken. 7802 [Bodo Moeller] 7803 7804 *) Store verify_result within SSL_SESSION also for client side to 7805 avoid potential security hole. (Re-used sessions on the client side 7806 always resulted in verify_result==X509_V_OK, not using the original 7807 result of the server certificate verification.) 7808 [Lutz Jaenicke] 7809 7810 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 7811 SSL3_RT_APPLICATION_DATA, return 0. 7812 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 7813 [Bodo Moeller] 7814 7815 *) Fix SSL_peek: 7816 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 7817 releases, have been re-implemented by renaming the previous 7818 implementations of ssl2_read and ssl3_read to ssl2_read_internal 7819 and ssl3_read_internal, respectively, and adding 'peek' parameters 7820 to them. The new ssl[23]_{read,peek} functions are calls to 7821 ssl[23]_read_internal with the 'peek' flag set appropriately. 7822 A 'peek' parameter has also been added to ssl3_read_bytes, which 7823 does the actual work for ssl3_read_internal. 7824 [Bodo Moeller] 7825 7826 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 7827 the method-specific "init()" handler. Also clean up ex_data after 7828 calling the method-specific "finish()" handler. Previously, this was 7829 happening the other way round. 7830 [Geoff Thorpe] 7831 7832 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 7833 The previous value, 12, was not always sufficient for BN_mod_exp(). 7834 [Bodo Moeller] 7835 7836 *) Make sure that shared libraries get the internal name engine with 7837 the full version number and not just 0. This should mark the 7838 shared libraries as not backward compatible. Of course, this should 7839 be changed again when we can guarantee backward binary compatibility. 7840 [Richard Levitte] 7841 7842 *) Fix typo in get_cert_by_subject() in by_dir.c 7843 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 7844 7845 *) Rework the system to generate shared libraries: 7846 7847 - Make note of the expected extension for the shared libraries and 7848 if there is a need for symbolic links from for example libcrypto.so.0 7849 to libcrypto.so.0.9.7. There is extended info in Configure for 7850 that. 7851 7852 - Make as few rebuilds of the shared libraries as possible. 7853 7854 - Still avoid linking the OpenSSL programs with the shared libraries. 7855 7856 - When installing, install the shared libraries separately from the 7857 static ones. 7858 [Richard Levitte] 7859 7860 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 7861 7862 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 7863 and not in SSL_clear because the latter is also used by the 7864 accept/connect functions; previously, the settings made by 7865 SSL_set_read_ahead would be lost during the handshake. 7866 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 7867 7868 *) Correct util/mkdef.pl to be selective about disabled algorithms. 7869 Previously, it would create entries for disableed algorithms no 7870 matter what. 7871 [Richard Levitte] 7872 7873 *) Added several new manual pages for SSL_* function. 7874 [Lutz Jaenicke] 7875 7876 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 7877 7878 *) In ssl23_get_client_hello, generate an error message when faced 7879 with an initial SSL 3.0/TLS record that is too small to contain the 7880 first two bytes of the ClientHello message, i.e. client_version. 7881 (Note that this is a pathologic case that probably has never happened 7882 in real life.) The previous approach was to use the version number 7883 from the record header as a substitute; but our protocol choice 7884 should not depend on that one because it is not authenticated 7885 by the Finished messages. 7886 [Bodo Moeller] 7887 7888 *) More robust randomness gathering functions for Windows. 7889 [Jeffrey Altman <jaltman@columbia.edu>] 7890 7891 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 7892 not set then we don't setup the error code for issuer check errors 7893 to avoid possibly overwriting other errors which the callback does 7894 handle. If an application does set the flag then we assume it knows 7895 what it is doing and can handle the new informational codes 7896 appropriately. 7897 [Steve Henson] 7898 7899 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 7900 a general "ANY" type, as such it should be able to decode anything 7901 including tagged types. However it didn't check the class so it would 7902 wrongly interpret tagged types in the same way as their universal 7903 counterpart and unknown types were just rejected. Changed so that the 7904 tagged and unknown types are handled in the same way as a SEQUENCE: 7905 that is the encoding is stored intact. There is also a new type 7906 "V_ASN1_OTHER" which is used when the class is not universal, in this 7907 case we have no idea what the actual type is so we just lump them all 7908 together. 7909 [Steve Henson] 7910 7911 *) On VMS, stdout may very well lead to a file that is written to 7912 in a record-oriented fashion. That means that every write() will 7913 write a separate record, which will be read separately by the 7914 programs trying to read from it. This can be very confusing. 7915 7916 The solution is to put a BIO filter in the way that will buffer 7917 text until a linefeed is reached, and then write everything a 7918 line at a time, so every record written will be an actual line, 7919 not chunks of lines and not (usually doesn't happen, but I've 7920 seen it once) several lines in one record. BIO_f_linebuffer() is 7921 the answer. 7922 7923 Currently, it's a VMS-only method, because that's where it has 7924 been tested well enough. 7925 [Richard Levitte] 7926 7927 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 7928 it can return incorrect results. 7929 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 7930 but it was in 0.9.6-beta[12].) 7931 [Bodo Moeller] 7932 7933 *) Disable the check for content being present when verifying detached 7934 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 7935 include zero length content when signing messages. 7936 [Steve Henson] 7937 7938 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 7939 BIO_ctrl (for BIO pairs). 7940 [Bodo Möller] 7941 7942 *) Add DSO method for VMS. 7943 [Richard Levitte] 7944 7945 *) Bug fix: Montgomery multiplication could produce results with the 7946 wrong sign. 7947 [Ulf Möller] 7948 7949 *) Add RPM specification openssl.spec and modify it to build three 7950 packages. The default package contains applications, application 7951 documentation and run-time libraries. The devel package contains 7952 include files, static libraries and function documentation. The 7953 doc package contains the contents of the doc directory. The original 7954 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 7955 [Richard Levitte] 7956 7957 *) Add a large number of documentation files for many SSL routines. 7958 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7959 7960 *) Add a configuration entry for Sony News 4. 7961 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 7962 7963 *) Don't set the two most significant bits to one when generating a 7964 random number < q in the DSA library. 7965 [Ulf Möller] 7966 7967 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 7968 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 7969 the underlying transport is blocking) if a handshake took place. 7970 (The default behaviour is needed by applications such as s_client 7971 and s_server that use select() to determine when to use SSL_read; 7972 but for applications that know in advance when to expect data, it 7973 just makes things more complicated.) 7974 [Bodo Moeller] 7975 7976 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 7977 from EGD. 7978 [Ben Laurie] 7979 7980 *) Add a few more EBCDIC conditionals that make `req' and `x509' 7981 work better on such systems. 7982 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 7983 7984 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 7985 Update PKCS12_parse() so it copies the friendlyName and the 7986 keyid to the certificates aux info. 7987 [Steve Henson] 7988 7989 *) Fix bug in PKCS7_verify() which caused an infinite loop 7990 if there was more than one signature. 7991 [Sven Uszpelkat <su@celocom.de>] 7992 7993 *) Major change in util/mkdef.pl to include extra information 7994 about each symbol, as well as presentig variables as well 7995 as functions. This change means that there's n more need 7996 to rebuild the .num files when some algorithms are excluded. 7997 [Richard Levitte] 7998 7999 *) Allow the verify time to be set by an application, 8000 rather than always using the current time. 8001 [Steve Henson] 8002 8003 *) Phase 2 verify code reorganisation. The certificate 8004 verify code now looks up an issuer certificate by a 8005 number of criteria: subject name, authority key id 8006 and key usage. It also verifies self signed certificates 8007 by the same criteria. The main comparison function is 8008 X509_check_issued() which performs these checks. 8009 8010 Lot of changes were necessary in order to support this 8011 without completely rewriting the lookup code. 8012 8013 Authority and subject key identifier are now cached. 8014 8015 The LHASH 'certs' is X509_STORE has now been replaced 8016 by a STACK_OF(X509_OBJECT). This is mainly because an 8017 LHASH can't store or retrieve multiple objects with 8018 the same hash value. 8019 8020 As a result various functions (which were all internal 8021 use only) have changed to handle the new X509_STORE 8022 structure. This will break anything that messed round 8023 with X509_STORE internally. 8024 8025 The functions X509_STORE_add_cert() now checks for an 8026 exact match, rather than just subject name. 8027 8028 The X509_STORE API doesn't directly support the retrieval 8029 of multiple certificates matching a given criteria, however 8030 this can be worked round by performing a lookup first 8031 (which will fill the cache with candidate certificates) 8032 and then examining the cache for matches. This is probably 8033 the best we can do without throwing out X509_LOOKUP 8034 entirely (maybe later...). 8035 8036 The X509_VERIFY_CTX structure has been enhanced considerably. 8037 8038 All certificate lookup operations now go via a get_issuer() 8039 callback. Although this currently uses an X509_STORE it 8040 can be replaced by custom lookups. This is a simple way 8041 to bypass the X509_STORE hackery necessary to make this 8042 work and makes it possible to use more efficient techniques 8043 in future. A very simple version which uses a simple 8044 STACK for its trusted certificate store is also provided 8045 using X509_STORE_CTX_trusted_stack(). 8046 8047 The verify_cb() and verify() callbacks now have equivalents 8048 in the X509_STORE_CTX structure. 8049 8050 X509_STORE_CTX also has a 'flags' field which can be used 8051 to customise the verify behaviour. 8052 [Steve Henson] 8053 8054 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 8055 excludes S/MIME capabilities. 8056 [Steve Henson] 8057 8058 *) When a certificate request is read in keep a copy of the 8059 original encoding of the signed data and use it when outputing 8060 again. Signatures then use the original encoding rather than 8061 a decoded, encoded version which may cause problems if the 8062 request is improperly encoded. 8063 [Steve Henson] 8064 8065 *) For consistency with other BIO_puts implementations, call 8066 buffer_write(b, ...) directly in buffer_puts instead of calling 8067 BIO_write(b, ...). 8068 8069 In BIO_puts, increment b->num_write as in BIO_write. 8070 [Peter.Sylvester@EdelWeb.fr] 8071 8072 *) Fix BN_mul_word for the case where the word is 0. (We have to use 8073 BN_zero, we may not return a BIGNUM with an array consisting of 8074 words set to zero.) 8075 [Bodo Moeller] 8076 8077 *) Avoid calling abort() from within the library when problems are 8078 detected, except if preprocessor symbols have been defined 8079 (such as REF_CHECK, BN_DEBUG etc.). 8080 [Bodo Moeller] 8081 8082 *) New openssl application 'rsautl'. This utility can be 8083 used for low level RSA operations. DER public key 8084 BIO/fp routines also added. 8085 [Steve Henson] 8086 8087 *) New Configure entry and patches for compiling on QNX 4. 8088 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 8089 8090 *) A demo state-machine implementation was sponsored by 8091 Nuron (http://www.nuron.com/) and is now available in 8092 demos/state_machine. 8093 [Ben Laurie] 8094 8095 *) New options added to the 'dgst' utility for signature 8096 generation and verification. 8097 [Steve Henson] 8098 8099 *) Unrecognized PKCS#7 content types are now handled via a 8100 catch all ASN1_TYPE structure. This allows unsupported 8101 types to be stored as a "blob" and an application can 8102 encode and decode it manually. 8103 [Steve Henson] 8104 8105 *) Fix various signed/unsigned issues to make a_strex.c 8106 compile under VC++. 8107 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 8108 8109 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 8110 length if passed a buffer. ASN1_INTEGER_to_BN failed 8111 if passed a NULL BN and its argument was negative. 8112 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 8113 8114 *) Modification to PKCS#7 encoding routines to output definite 8115 length encoding. Since currently the whole structures are in 8116 memory there's not real point in using indefinite length 8117 constructed encoding. However if OpenSSL is compiled with 8118 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 8119 [Steve Henson] 8120 8121 *) Added BIO_vprintf() and BIO_vsnprintf(). 8122 [Richard Levitte] 8123 8124 *) Added more prefixes to parse for in the the strings written 8125 through a logging bio, to cover all the levels that are available 8126 through syslog. The prefixes are now: 8127 8128 PANIC, EMERG, EMR => LOG_EMERG 8129 ALERT, ALR => LOG_ALERT 8130 CRIT, CRI => LOG_CRIT 8131 ERROR, ERR => LOG_ERR 8132 WARNING, WARN, WAR => LOG_WARNING 8133 NOTICE, NOTE, NOT => LOG_NOTICE 8134 INFO, INF => LOG_INFO 8135 DEBUG, DBG => LOG_DEBUG 8136 8137 and as before, if none of those prefixes are present at the 8138 beginning of the string, LOG_ERR is chosen. 8139 8140 On Win32, the LOG_* levels are mapped according to this: 8141 8142 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 8143 LOG_WARNING => EVENTLOG_WARNING_TYPE 8144 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 8145 8146 [Richard Levitte] 8147 8148 *) Made it possible to reconfigure with just the configuration 8149 argument "reconf" or "reconfigure". The command line arguments 8150 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 8151 and are retrieved from there when reconfiguring. 8152 [Richard Levitte] 8153 8154 *) MD4 implemented. 8155 [Assar Westerlund <assar@sics.se>, Richard Levitte] 8156 8157 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 8158 [Richard Levitte] 8159 8160 *) The obj_dat.pl script was messing up the sorting of object 8161 names. The reason was that it compared the quoted version 8162 of strings as a result "OCSP" > "OCSP Signing" because 8163 " > SPACE. Changed script to store unquoted versions of 8164 names and add quotes on output. It was also omitting some 8165 names from the lookup table if they were given a default 8166 value (that is if SN is missing it is given the same 8167 value as LN and vice versa), these are now added on the 8168 grounds that if an object has a name we should be able to 8169 look it up. Finally added warning output when duplicate 8170 short or long names are found. 8171 [Steve Henson] 8172 8173 *) Changes needed for Tandem NSK. 8174 [Scott Uroff <scott@xypro.com>] 8175 8176 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 8177 RSA_padding_check_SSLv23(), special padding was never detected 8178 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 8179 version rollback attacks was not effective. 8180 8181 In s23_clnt.c, don't use special rollback-attack detection padding 8182 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 8183 client; similarly, in s23_srvr.c, don't do the rollback check if 8184 SSL 2.0 is the only protocol enabled in the server. 8185 [Bodo Moeller] 8186 8187 *) Make it possible to get hexdumps of unprintable data with 'openssl 8188 asn1parse'. By implication, the functions ASN1_parse_dump() and 8189 BIO_dump_indent() are added. 8190 [Richard Levitte] 8191 8192 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 8193 these print out strings and name structures based on various 8194 flags including RFC2253 support and proper handling of 8195 multibyte characters. Added options to the 'x509' utility 8196 to allow the various flags to be set. 8197 [Steve Henson] 8198 8199 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 8200 Also change the functions X509_cmp_current_time() and 8201 X509_gmtime_adj() work with an ASN1_TIME structure, 8202 this will enable certificates using GeneralizedTime in validity 8203 dates to be checked. 8204 [Steve Henson] 8205 8206 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 8207 negative public key encodings) on by default, 8208 NO_NEG_PUBKEY_BUG can be set to disable it. 8209 [Steve Henson] 8210 8211 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 8212 content octets. An i2c_ASN1_OBJECT is unnecessary because 8213 the encoding can be trivially obtained from the structure. 8214 [Steve Henson] 8215 8216 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 8217 not read locks (CRYPTO_r_[un]lock). 8218 [Bodo Moeller] 8219 8220 *) A first attempt at creating official support for shared 8221 libraries through configuration. I've kept it so the 8222 default is static libraries only, and the OpenSSL programs 8223 are always statically linked for now, but there are 8224 preparations for dynamic linking in place. 8225 This has been tested on Linux and Tru64. 8226 [Richard Levitte] 8227 8228 *) Randomness polling function for Win9x, as described in: 8229 Peter Gutmann, Software Generation of Practically Strong 8230 Random Numbers. 8231 [Ulf Möller] 8232 8233 *) Fix so PRNG is seeded in req if using an already existing 8234 DSA key. 8235 [Steve Henson] 8236 8237 *) New options to smime application. -inform and -outform 8238 allow alternative formats for the S/MIME message including 8239 PEM and DER. The -content option allows the content to be 8240 specified separately. This should allow things like Netscape 8241 form signing output easier to verify. 8242 [Steve Henson] 8243 8244 *) Fix the ASN1 encoding of tags using the 'long form'. 8245 [Steve Henson] 8246 8247 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 8248 STRING types. These convert content octets to and from the 8249 underlying type. The actual tag and length octets are 8250 already assumed to have been read in and checked. These 8251 are needed because all other string types have virtually 8252 identical handling apart from the tag. By having versions 8253 of the ASN1 functions that just operate on content octets 8254 IMPLICIT tagging can be handled properly. It also allows 8255 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 8256 and ASN1_INTEGER are identical apart from the tag. 8257 [Steve Henson] 8258 8259 *) Change the handling of OID objects as follows: 8260 8261 - New object identifiers are inserted in objects.txt, following 8262 the syntax given in objects.README. 8263 - objects.pl is used to process obj_mac.num and create a new 8264 obj_mac.h. 8265 - obj_dat.pl is used to create a new obj_dat.h, using the data in 8266 obj_mac.h. 8267 8268 This is currently kind of a hack, and the perl code in objects.pl 8269 isn't very elegant, but it works as I intended. The simplest way 8270 to check that it worked correctly is to look in obj_dat.h and 8271 check the array nid_objs and make sure the objects haven't moved 8272 around (this is important!). Additions are OK, as well as 8273 consistent name changes. 8274 [Richard Levitte] 8275 8276 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 8277 [Bodo Moeller] 8278 8279 *) Addition of the command line parameter '-rand file' to 'openssl req'. 8280 The given file adds to whatever has already been seeded into the 8281 random pool through the RANDFILE configuration file option or 8282 environment variable, or the default random state file. 8283 [Richard Levitte] 8284 8285 *) mkstack.pl now sorts each macro group into lexical order. 8286 Previously the output order depended on the order the files 8287 appeared in the directory, resulting in needless rewriting 8288 of safestack.h . 8289 [Steve Henson] 8290 8291 *) Patches to make OpenSSL compile under Win32 again. Mostly 8292 work arounds for the VC++ problem that it treats func() as 8293 func(void). Also stripped out the parts of mkdef.pl that 8294 added extra typesafe functions: these no longer exist. 8295 [Steve Henson] 8296 8297 *) Reorganisation of the stack code. The macros are now all 8298 collected in safestack.h . Each macro is defined in terms of 8299 a "stack macro" of the form SKM_<name>(type, a, b). The 8300 DEBUG_SAFESTACK is now handled in terms of function casts, 8301 this has the advantage of retaining type safety without the 8302 use of additional functions. If DEBUG_SAFESTACK is not defined 8303 then the non typesafe macros are used instead. Also modified the 8304 mkstack.pl script to handle the new form. Needs testing to see 8305 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 8306 the default if no major problems. Similar behaviour for ASN1_SET_OF 8307 and PKCS12_STACK_OF. 8308 [Steve Henson] 8309 8310 *) When some versions of IIS use the 'NET' form of private key the 8311 key derivation algorithm is different. Normally MD5(password) is 8312 used as a 128 bit RC4 key. In the modified case 8313 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 8314 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 8315 as the old Netscape_RSA functions except they have an additional 8316 'sgckey' parameter which uses the modified algorithm. Also added 8317 an -sgckey command line option to the rsa utility. Thanks to 8318 Adrian Peck <bertie@ncipher.com> for posting details of the modified 8319 algorithm to openssl-dev. 8320 [Steve Henson] 8321 8322 *) The evp_local.h macros were using 'c.##kname' which resulted in 8323 invalid expansion on some systems (SCO 5.0.5 for example). 8324 Corrected to 'c.kname'. 8325 [Phillip Porch <root@theporch.com>] 8326 8327 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 8328 a STACK of email addresses from a certificate or request, these look 8329 in the subject name and the subject alternative name extensions and 8330 omit any duplicate addresses. 8331 [Steve Henson] 8332 8333 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 8334 This makes DSA verification about 2 % faster. 8335 [Bodo Moeller] 8336 8337 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 8338 (meaning that now 2^5 values will be precomputed, which is only 4 KB 8339 plus overhead for 1024 bit moduli). 8340 This makes exponentiations about 0.5 % faster for 1024 bit 8341 exponents (as measured by "openssl speed rsa2048"). 8342 [Bodo Moeller] 8343 8344 *) Rename memory handling macros to avoid conflicts with other 8345 software: 8346 Malloc => OPENSSL_malloc 8347 Malloc_locked => OPENSSL_malloc_locked 8348 Realloc => OPENSSL_realloc 8349 Free => OPENSSL_free 8350 [Richard Levitte] 8351 8352 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 8353 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 8354 [Bodo Moeller] 8355 8356 *) CygWin32 support. 8357 [John Jarvie <jjarvie@newsguy.com>] 8358 8359 *) The type-safe stack code has been rejigged. It is now only compiled 8360 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 8361 by default all type-specific stack functions are "#define"d back to 8362 standard stack functions. This results in more streamlined output 8363 but retains the type-safety checking possibilities of the original 8364 approach. 8365 [Geoff Thorpe] 8366 8367 *) The STACK code has been cleaned up, and certain type declarations 8368 that didn't make a lot of sense have been brought in line. This has 8369 also involved a cleanup of sorts in safestack.h to more correctly 8370 map type-safe stack functions onto their plain stack counterparts. 8371 This work has also resulted in a variety of "const"ifications of 8372 lots of the code, especially "_cmp" operations which should normally 8373 be prototyped with "const" parameters anyway. 8374 [Geoff Thorpe] 8375 8376 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 8377 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 8378 (The PRNG state consists of two parts, the large pool 'state' and 'md', 8379 where all of 'md' is used each time the PRNG is used, but 'state' 8380 is used only indexed by a cyclic counter. As entropy may not be 8381 well distributed from the beginning, 'md' is important as a 8382 chaining variable. However, the output function chains only half 8383 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 8384 all of 'md', and seeding with STATE_SIZE dummy bytes will result 8385 in all of 'state' being rewritten, with the new values depending 8386 on virtually all of 'md'. This overcomes the 80 bit limitation.) 8387 [Bodo Moeller] 8388 8389 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 8390 the handshake is continued after ssl_verify_cert_chain(); 8391 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 8392 can lead to 'unexplainable' connection aborts later. 8393 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 8394 8395 *) Major EVP API cipher revision. 8396 Add hooks for extra EVP features. This allows various cipher 8397 parameters to be set in the EVP interface. Support added for variable 8398 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 8399 setting of RC2 and RC5 parameters. 8400 8401 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 8402 ciphers. 8403 8404 Remove lots of duplicated code from the EVP library. For example *every* 8405 cipher init() function handles the 'iv' in the same way according to the 8406 cipher mode. They also all do nothing if the 'key' parameter is NULL and 8407 for CFB and OFB modes they zero ctx->num. 8408 8409 New functionality allows removal of S/MIME code RC2 hack. 8410 8411 Most of the routines have the same form and so can be declared in terms 8412 of macros. 8413 8414 By shifting this to the top level EVP_CipherInit() it can be removed from 8415 all individual ciphers. If the cipher wants to handle IVs or keys 8416 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 8417 flags. 8418 8419 Change lots of functions like EVP_EncryptUpdate() to now return a 8420 value: although software versions of the algorithms cannot fail 8421 any installed hardware versions can. 8422 [Steve Henson] 8423 8424 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 8425 this option is set, tolerate broken clients that send the negotiated 8426 protocol version number instead of the requested protocol version 8427 number. 8428 [Bodo Moeller] 8429 8430 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 8431 i.e. non-zero for export ciphersuites, zero otherwise. 8432 Previous versions had this flag inverted, inconsistent with 8433 rsa_tmp_cb (..._TMP_RSA_CB). 8434 [Bodo Moeller; problem reported by Amit Chopra] 8435 8436 *) Add missing DSA library text string. Work around for some IIS 8437 key files with invalid SEQUENCE encoding. 8438 [Steve Henson] 8439 8440 *) Add a document (doc/standards.txt) that list all kinds of standards 8441 and so on that are implemented in OpenSSL. 8442 [Richard Levitte] 8443 8444 *) Enhance c_rehash script. Old version would mishandle certificates 8445 with the same subject name hash and wouldn't handle CRLs at all. 8446 Added -fingerprint option to crl utility, to support new c_rehash 8447 features. 8448 [Steve Henson] 8449 8450 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 8451 [Ulf Möller] 8452 8453 *) Fix for SSL server purpose checking. Server checking was 8454 rejecting certificates which had extended key usage present 8455 but no ssl client purpose. 8456 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 8457 8458 *) Make PKCS#12 code work with no password. The PKCS#12 spec 8459 is a little unclear about how a blank password is handled. 8460 Since the password in encoded as a BMPString with terminating 8461 double NULL a zero length password would end up as just the 8462 double NULL. However no password at all is different and is 8463 handled differently in the PKCS#12 key generation code. NS 8464 treats a blank password as zero length. MSIE treats it as no 8465 password on export: but it will try both on import. We now do 8466 the same: PKCS12_parse() tries zero length and no password if 8467 the password is set to "" or NULL (NULL is now a valid password: 8468 it wasn't before) as does the pkcs12 application. 8469 [Steve Henson] 8470 8471 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 8472 perror when PEM_read_bio_X509_REQ fails, the error message must 8473 be obtained from the error queue. 8474 [Bodo Moeller] 8475 8476 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 8477 it in ERR_remove_state if appropriate, and change ERR_get_state 8478 accordingly to avoid race conditions (this is necessary because 8479 thread_hash is no longer constant once set). 8480 [Bodo Moeller] 8481 8482 *) Bugfix for linux-elf makefile.one. 8483 [Ulf Möller] 8484 8485 *) RSA_get_default_method() will now cause a default 8486 RSA_METHOD to be chosen if one doesn't exist already. 8487 Previously this was only set during a call to RSA_new() 8488 or RSA_new_method(NULL) meaning it was possible for 8489 RSA_get_default_method() to return NULL. 8490 [Geoff Thorpe] 8491 8492 *) Added native name translation to the existing DSO code 8493 that will convert (if the flag to do so is set) filenames 8494 that are sufficiently small and have no path information 8495 into a canonical native form. Eg. "blah" converted to 8496 "libblah.so" or "blah.dll" etc. 8497 [Geoff Thorpe] 8498 8499 *) New function ERR_error_string_n(e, buf, len) which is like 8500 ERR_error_string(e, buf), but writes at most 'len' bytes 8501 including the 0 terminator. For ERR_error_string_n, 'buf' 8502 may not be NULL. 8503 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 8504 8505 *) CONF library reworked to become more general. A new CONF 8506 configuration file reader "class" is implemented as well as a 8507 new functions (NCONF_*, for "New CONF") to handle it. The now 8508 old CONF_* functions are still there, but are reimplemented to 8509 work in terms of the new functions. Also, a set of functions 8510 to handle the internal storage of the configuration data is 8511 provided to make it easier to write new configuration file 8512 reader "classes" (I can definitely see something reading a 8513 configuration file in XML format, for example), called _CONF_*, 8514 or "the configuration storage API"... 8515 8516 The new configuration file reading functions are: 8517 8518 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 8519 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 8520 8521 NCONF_default, NCONF_WIN32 8522 8523 NCONF_dump_fp, NCONF_dump_bio 8524 8525 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 8526 NCONF_new creates a new CONF object. This works in the same way 8527 as other interfaces in OpenSSL, like the BIO interface. 8528 NCONF_dump_* dump the internal storage of the configuration file, 8529 which is useful for debugging. All other functions take the same 8530 arguments as the old CONF_* functions wth the exception of the 8531 first that must be a `CONF *' instead of a `LHASH *'. 8532 8533 To make it easer to use the new classes with the old CONF_* functions, 8534 the function CONF_set_default_method is provided. 8535 [Richard Levitte] 8536 8537 *) Add '-tls1' option to 'openssl ciphers', which was already 8538 mentioned in the documentation but had not been implemented. 8539 (This option is not yet really useful because even the additional 8540 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 8541 [Bodo Moeller] 8542 8543 *) Initial DSO code added into libcrypto for letting OpenSSL (and 8544 OpenSSL-based applications) load shared libraries and bind to 8545 them in a portable way. 8546 [Geoff Thorpe, with contributions from Richard Levitte] 8547 8548 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 8549 8550 *) Make sure _lrotl and _lrotr are only used with MSVC. 8551 8552 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 8553 (the default implementation of RAND_status). 8554 8555 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 8556 to '-clrext' (= clear extensions), as intended and documented. 8557 [Bodo Moeller; inconsistency pointed out by Michael Attili 8558 <attili@amaxo.com>] 8559 8560 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 8561 was larger than the MD block size. 8562 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 8563 8564 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 8565 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 8566 using the passed key: if the passed key was a private key the result 8567 of X509_print(), for example, would be to print out all the private key 8568 components. 8569 [Steve Henson] 8570 8571 *) des_quad_cksum() byte order bug fix. 8572 [Ulf Möller, using the problem description in krb4-0.9.7, where 8573 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 8574 8575 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 8576 discouraged. 8577 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 8578 8579 *) For easily testing in shell scripts whether some command 8580 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 8581 returns with exit code 0 iff no command of the given name is available. 8582 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 8583 the output goes to stdout and nothing is printed to stderr. 8584 Additional arguments are always ignored. 8585 8586 Since for each cipher there is a command of the same name, 8587 the 'no-cipher' compilation switches can be tested this way. 8588 8589 ('openssl no-XXX' is not able to detect pseudo-commands such 8590 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 8591 [Bodo Moeller] 8592 8593 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 8594 [Bodo Moeller] 8595 8596 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 8597 is set; it will be thrown away anyway because each handshake creates 8598 its own key. 8599 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 8600 to parameters -- in previous versions (since OpenSSL 0.9.3) the 8601 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 8602 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 8603 [Bodo Moeller] 8604 8605 *) New s_client option -ign_eof: EOF at stdin is ignored, and 8606 'Q' and 'R' lose their special meanings (quit/renegotiate). 8607 This is part of what -quiet does; unlike -quiet, -ign_eof 8608 does not suppress any output. 8609 [Richard Levitte] 8610 8611 *) Add compatibility options to the purpose and trust code. The 8612 purpose X509_PURPOSE_ANY is "any purpose" which automatically 8613 accepts a certificate or CA, this was the previous behaviour, 8614 with all the associated security issues. 8615 8616 X509_TRUST_COMPAT is the old trust behaviour: only and 8617 automatically trust self signed roots in certificate store. A 8618 new trust setting X509_TRUST_DEFAULT is used to specify that 8619 a purpose has no associated trust setting and it should instead 8620 use the value in the default purpose. 8621 [Steve Henson] 8622 8623 *) Fix the PKCS#8 DSA private key code so it decodes keys again 8624 and fix a memory leak. 8625 [Steve Henson] 8626 8627 *) In util/mkerr.pl (which implements 'make errors'), preserve 8628 reason strings from the previous version of the .c file, as 8629 the default to have only downcase letters (and digits) in 8630 automatically generated reasons codes is not always appropriate. 8631 [Bodo Moeller] 8632 8633 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 8634 using strerror. Previously, ERR_reason_error_string() returned 8635 library names as reason strings for SYSerr; but SYSerr is a special 8636 case where small numbers are errno values, not library numbers. 8637 [Bodo Moeller] 8638 8639 *) Add '-dsaparam' option to 'openssl dhparam' application. This 8640 converts DSA parameters into DH parameters. (When creating parameters, 8641 DSA_generate_parameters is used.) 8642 [Bodo Moeller] 8643 8644 *) Include 'length' (recommended exponent length) in C code generated 8645 by 'openssl dhparam -C'. 8646 [Bodo Moeller] 8647 8648 *) The second argument to set_label in perlasm was already being used 8649 so couldn't be used as a "file scope" flag. Moved to third argument 8650 which was free. 8651 [Steve Henson] 8652 8653 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 8654 instead of RAND_bytes for encryption IVs and salts. 8655 [Bodo Moeller] 8656 8657 *) Include RAND_status() into RAND_METHOD instead of implementing 8658 it only for md_rand.c Otherwise replacing the PRNG by calling 8659 RAND_set_rand_method would be impossible. 8660 [Bodo Moeller] 8661 8662 *) Don't let DSA_generate_key() enter an infinite loop if the random 8663 number generation fails. 8664 [Bodo Moeller] 8665 8666 *) New 'rand' application for creating pseudo-random output. 8667 [Bodo Moeller] 8668 8669 *) Added configuration support for Linux/IA64 8670 [Rolf Haberrecker <rolf@suse.de>] 8671 8672 *) Assembler module support for Mingw32. 8673 [Ulf Möller] 8674 8675 *) Shared library support for HPUX (in shlib/). 8676 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 8677 8678 *) Shared library support for Solaris gcc. 8679 [Lutz Behnke <behnke@trustcenter.de>] 8680 8681 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 8682 8683 *) PKCS7_encrypt() was adding text MIME headers twice because they 8684 were added manually and by SMIME_crlf_copy(). 8685 [Steve Henson] 8686 8687 *) In bntest.c don't call BN_rand with zero bits argument. 8688 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 8689 8690 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 8691 case was implemented. This caused BN_div_recp() to fail occasionally. 8692 [Ulf Möller] 8693 8694 *) Add an optional second argument to the set_label() in the perl 8695 assembly language builder. If this argument exists and is set 8696 to 1 it signals that the assembler should use a symbol whose 8697 scope is the entire file, not just the current function. This 8698 is needed with MASM which uses the format label:: for this scope. 8699 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 8700 8701 *) Change the ASN1 types so they are typedefs by default. Before 8702 almost all types were #define'd to ASN1_STRING which was causing 8703 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 8704 for example. 8705 [Steve Henson] 8706 8707 *) Change names of new functions to the new get1/get0 naming 8708 convention: After 'get1', the caller owns a reference count 8709 and has to call ..._free; 'get0' returns a pointer to some 8710 data structure without incrementing reference counters. 8711 (Some of the existing 'get' functions increment a reference 8712 counter, some don't.) 8713 Similarly, 'set1' and 'add1' functions increase reference 8714 counters or duplicate objects. 8715 [Steve Henson] 8716 8717 *) Allow for the possibility of temp RSA key generation failure: 8718 the code used to assume it always worked and crashed on failure. 8719 [Steve Henson] 8720 8721 *) Fix potential buffer overrun problem in BIO_printf(). 8722 [Ulf Möller, using public domain code by Patrick Powell; problem 8723 pointed out by David Sacerdote <das33@cornell.edu>] 8724 8725 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 8726 RAND_egd() and RAND_status(). In the command line application, 8727 the EGD socket can be specified like a seed file using RANDFILE 8728 or -rand. 8729 [Ulf Möller] 8730 8731 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 8732 Some CAs (e.g. Verisign) distribute certificates in this form. 8733 [Steve Henson] 8734 8735 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 8736 list to exclude them. This means that no special compilation option 8737 is needed to use anonymous DH: it just needs to be included in the 8738 cipher list. 8739 [Steve Henson] 8740 8741 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 8742 EVP_MD_type. The old functionality is available in a new macro called 8743 EVP_MD_md(). Change code that uses it and update docs. 8744 [Steve Henson] 8745 8746 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 8747 where the 'void *' argument is replaced by a function pointer argument. 8748 Previously 'void *' was abused to point to functions, which works on 8749 many platforms, but is not correct. As these functions are usually 8750 called by macros defined in OpenSSL header files, most source code 8751 should work without changes. 8752 [Richard Levitte] 8753 8754 *) <openssl/opensslconf.h> (which is created by Configure) now contains 8755 sections with information on -D... compiler switches used for 8756 compiling the library so that applications can see them. To enable 8757 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 8758 must be defined. E.g., 8759 #define OPENSSL_ALGORITHM_DEFINES 8760 #include <openssl/opensslconf.h> 8761 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 8762 [Richard Levitte, Ulf and Bodo Möller] 8763 8764 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 8765 record layer. 8766 [Bodo Moeller] 8767 8768 *) Change the 'other' type in certificate aux info to a STACK_OF 8769 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 8770 the required ASN1 format: arbitrary types determined by an OID. 8771 [Steve Henson] 8772 8773 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 8774 argument to 'req'. This is not because the function is newer or 8775 better than others it just uses the work 'NEW' in the certificate 8776 request header lines. Some software needs this. 8777 [Steve Henson] 8778 8779 *) Reorganise password command line arguments: now passwords can be 8780 obtained from various sources. Delete the PEM_cb function and make 8781 it the default behaviour: i.e. if the callback is NULL and the 8782 usrdata argument is not NULL interpret it as a null terminated pass 8783 phrase. If usrdata and the callback are NULL then the pass phrase 8784 is prompted for as usual. 8785 [Steve Henson] 8786 8787 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 8788 the support is automatically enabled. The resulting binaries will 8789 autodetect the card and use it if present. 8790 [Ben Laurie and Compaq Inc.] 8791 8792 *) Work around for Netscape hang bug. This sends certificate request 8793 and server done in one record. Since this is perfectly legal in the 8794 SSL/TLS protocol it isn't a "bug" option and is on by default. See 8795 the bugs/SSLv3 entry for more info. 8796 [Steve Henson] 8797 8798 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 8799 [Andy Polyakov] 8800 8801 *) Add -rand argument to smime and pkcs12 applications and read/write 8802 of seed file. 8803 [Steve Henson] 8804 8805 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 8806 [Bodo Moeller] 8807 8808 *) Add command line password options to the remaining applications. 8809 [Steve Henson] 8810 8811 *) Bug fix for BN_div_recp() for numerators with an even number of 8812 bits. 8813 [Ulf Möller] 8814 8815 *) More tests in bntest.c, and changed test_bn output. 8816 [Ulf Möller] 8817 8818 *) ./config recognizes MacOS X now. 8819 [Andy Polyakov] 8820 8821 *) Bug fix for BN_div() when the first words of num and divsor are 8822 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 8823 [Ulf Möller] 8824 8825 *) Add support for various broken PKCS#8 formats, and command line 8826 options to produce them. 8827 [Steve Henson] 8828 8829 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 8830 get temporary BIGNUMs from a BN_CTX. 8831 [Ulf Möller] 8832 8833 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 8834 for p == 0. 8835 [Ulf Möller] 8836 8837 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 8838 include a #define from the old name to the new. The original intent 8839 was that statically linked binaries could for example just call 8840 SSLeay_add_all_ciphers() to just add ciphers to the table and not 8841 link with digests. This never worked becayse SSLeay_add_all_digests() 8842 and SSLeay_add_all_ciphers() were in the same source file so calling 8843 one would link with the other. They are now in separate source files. 8844 [Steve Henson] 8845 8846 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 8847 [Steve Henson] 8848 8849 *) Use a less unusual form of the Miller-Rabin primality test (it used 8850 a binary algorithm for exponentiation integrated into the Miller-Rabin 8851 loop, our standard modexp algorithms are faster). 8852 [Bodo Moeller] 8853 8854 *) Support for the EBCDIC character set completed. 8855 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 8856 8857 *) Source code cleanups: use const where appropriate, eliminate casts, 8858 use void * instead of char * in lhash. 8859 [Ulf Möller] 8860 8861 *) Bugfix: ssl3_send_server_key_exchange was not restartable 8862 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 8863 this the server could overwrite ephemeral keys that the client 8864 has already seen). 8865 [Bodo Moeller] 8866 8867 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 8868 using 50 iterations of the Rabin-Miller test. 8869 8870 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 8871 iterations of the Rabin-Miller test as required by the appendix 8872 to FIPS PUB 186[-1]) instead of DSA_is_prime. 8873 As BN_is_prime_fasttest includes trial division, DSA parameter 8874 generation becomes much faster. 8875 8876 This implies a change for the callback functions in DSA_is_prime 8877 and DSA_generate_parameters: The callback function is called once 8878 for each positive witness in the Rabin-Miller test, not just 8879 occasionally in the inner loop; and the parameters to the 8880 callback function now provide an iteration count for the outer 8881 loop rather than for the current invocation of the inner loop. 8882 DSA_generate_parameters additionally can call the callback 8883 function with an 'iteration count' of -1, meaning that a 8884 candidate has passed the trial division test (when q is generated 8885 from an application-provided seed, trial division is skipped). 8886 [Bodo Moeller] 8887 8888 *) New function BN_is_prime_fasttest that optionally does trial 8889 division before starting the Rabin-Miller test and has 8890 an additional BN_CTX * argument (whereas BN_is_prime always 8891 has to allocate at least one BN_CTX). 8892 'callback(1, -1, cb_arg)' is called when a number has passed the 8893 trial division stage. 8894 [Bodo Moeller] 8895 8896 *) Fix for bug in CRL encoding. The validity dates weren't being handled 8897 as ASN1_TIME. 8898 [Steve Henson] 8899 8900 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 8901 [Steve Henson] 8902 8903 *) New function BN_pseudo_rand(). 8904 [Ulf Möller] 8905 8906 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 8907 bignum version of BN_from_montgomery() with the working code from 8908 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 8909 the comments. 8910 [Ulf Möller] 8911 8912 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 8913 made it impossible to use the same SSL_SESSION data structure in 8914 SSL2 clients in multiple threads. 8915 [Bodo Moeller] 8916 8917 *) The return value of RAND_load_file() no longer counts bytes obtained 8918 by stat(). RAND_load_file(..., -1) is new and uses the complete file 8919 to seed the PRNG (previously an explicit byte count was required). 8920 [Ulf Möller, Bodo Möller] 8921 8922 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 8923 used (char *) instead of (void *) and had casts all over the place. 8924 [Steve Henson] 8925 8926 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 8927 [Ulf Möller] 8928 8929 *) Retain source code compatibility for BN_prime_checks macro: 8930 BN_is_prime(..., BN_prime_checks, ...) now uses 8931 BN_prime_checks_for_size to determine the appropriate number of 8932 Rabin-Miller iterations. 8933 [Ulf Möller] 8934 8935 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 8936 DH_CHECK_P_NOT_SAFE_PRIME. 8937 (Check if this is true? OpenPGP calls them "strong".) 8938 [Ulf Möller] 8939 8940 *) Merge the functionality of "dh" and "gendh" programs into a new program 8941 "dhparam". The old programs are retained for now but will handle DH keys 8942 (instead of parameters) in future. 8943 [Steve Henson] 8944 8945 *) Make the ciphers, s_server and s_client programs check the return values 8946 when a new cipher list is set. 8947 [Steve Henson] 8948 8949 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 8950 ciphers. Before when the 56bit ciphers were enabled the sorting was 8951 wrong. 8952 8953 The syntax for the cipher sorting has been extended to support sorting by 8954 cipher-strength (using the strength_bits hard coded in the tables). 8955 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 8956 8957 Fix a bug in the cipher-command parser: when supplying a cipher command 8958 string with an "undefined" symbol (neither command nor alphanumeric 8959 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 8960 an error is flagged. 8961 8962 Due to the strength-sorting extension, the code of the 8963 ssl_create_cipher_list() function was completely rearranged. I hope that 8964 the readability was also increased :-) 8965 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 8966 8967 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 8968 for the first serial number and places 2 in the serial number file. This 8969 avoids problems when the root CA is created with serial number zero and 8970 the first user certificate has the same issuer name and serial number 8971 as the root CA. 8972 [Steve Henson] 8973 8974 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 8975 the new code. Add documentation for this stuff. 8976 [Steve Henson] 8977 8978 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 8979 X509_*() to X509at_*() on the grounds that they don't handle X509 8980 structures and behave in an analagous way to the X509v3 functions: 8981 they shouldn't be called directly but wrapper functions should be used 8982 instead. 8983 8984 So we also now have some wrapper functions that call the X509at functions 8985 when passed certificate requests. (TO DO: similar things can be done with 8986 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 8987 things. Some of these need some d2i or i2d and print functionality 8988 because they handle more complex structures.) 8989 [Steve Henson] 8990 8991 *) Add missing #ifndefs that caused missing symbols when building libssl 8992 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 8993 NO_RSA in ssl/s2*.c. 8994 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller] 8995 8996 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 8997 has a return value which indicates the quality of the random data 8998 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 8999 error queue. New function RAND_pseudo_bytes() generates output that is 9000 guaranteed to be unique but not unpredictable. RAND_add is like 9001 RAND_seed, but takes an extra argument for an entropy estimate 9002 (RAND_seed always assumes full entropy). 9003 [Ulf Möller] 9004 9005 *) Do more iterations of Rabin-Miller probable prime test (specifically, 9006 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 9007 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 9008 in crypto/bn/bn_prime.c for the complete table). This guarantees a 9009 false-positive rate of at most 2^-80 for random input. 9010 [Bodo Moeller] 9011 9012 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 9013 [Bodo Moeller] 9014 9015 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 9016 in the 0.9.5 release), this returns the chain 9017 from an X509_CTX structure with a dup of the stack and all 9018 the X509 reference counts upped: so the stack will exist 9019 after X509_CTX_cleanup() has been called. Modify pkcs12.c 9020 to use this. 9021 9022 Also make SSL_SESSION_print() print out the verify return 9023 code. 9024 [Steve Henson] 9025 9026 *) Add manpage for the pkcs12 command. Also change the default 9027 behaviour so MAC iteration counts are used unless the new 9028 -nomaciter option is used. This improves file security and 9029 only older versions of MSIE (4.0 for example) need it. 9030 [Steve Henson] 9031 9032 *) Honor the no-xxx Configure options when creating .DEF files. 9033 [Ulf Möller] 9034 9035 *) Add PKCS#10 attributes to field table: challengePassword, 9036 unstructuredName and unstructuredAddress. These are taken from 9037 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 9038 international characters are used. 9039 9040 More changes to X509_ATTRIBUTE code: allow the setting of types 9041 based on strings. Remove the 'loc' parameter when adding 9042 attributes because these will be a SET OF encoding which is sorted 9043 in ASN1 order. 9044 [Steve Henson] 9045 9046 *) Initial changes to the 'req' utility to allow request generation 9047 automation. This will allow an application to just generate a template 9048 file containing all the field values and have req construct the 9049 request. 9050 9051 Initial support for X509_ATTRIBUTE handling. Stacks of these are 9052 used all over the place including certificate requests and PKCS#7 9053 structures. They are currently handled manually where necessary with 9054 some primitive wrappers for PKCS#7. The new functions behave in a 9055 manner analogous to the X509 extension functions: they allow 9056 attributes to be looked up by NID and added. 9057 9058 Later something similar to the X509V3 code would be desirable to 9059 automatically handle the encoding, decoding and printing of the 9060 more complex types. The string types like challengePassword can 9061 be handled by the string table functions. 9062 9063 Also modified the multi byte string table handling. Now there is 9064 a 'global mask' which masks out certain types. The table itself 9065 can use the flag STABLE_NO_MASK to ignore the mask setting: this 9066 is useful when for example there is only one permissible type 9067 (as in countryName) and using the mask might result in no valid 9068 types at all. 9069 [Steve Henson] 9070 9071 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 9072 SSL_get_peer_finished to allow applications to obtain the latest 9073 Finished messages sent to the peer or expected from the peer, 9074 respectively. (SSL_get_peer_finished is usually the Finished message 9075 actually received from the peer, otherwise the protocol will be aborted.) 9076 9077 As the Finished message are message digests of the complete handshake 9078 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 9079 be used for external authentication procedures when the authentication 9080 provided by SSL/TLS is not desired or is not enough. 9081 [Bodo Moeller] 9082 9083 *) Enhanced support for Alpha Linux is added. Now ./config checks if 9084 the host supports BWX extension and if Compaq C is present on the 9085 $PATH. Just exploiting of the BWX extension results in 20-30% 9086 performance kick for some algorithms, e.g. DES and RC4 to mention 9087 a couple. Compaq C in turn generates ~20% faster code for MD5 and 9088 SHA1. 9089 [Andy Polyakov] 9090 9091 *) Add support for MS "fast SGC". This is arguably a violation of the 9092 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 9093 weak crypto and after checking the certificate is SGC a second one 9094 with strong crypto. MS SGC stops the first handshake after receiving 9095 the server certificate message and sends a second client hello. Since 9096 a server will typically do all the time consuming operations before 9097 expecting any further messages from the client (server key exchange 9098 is the most expensive) there is little difference between the two. 9099 9100 To get OpenSSL to support MS SGC we have to permit a second client 9101 hello message after we have sent server done. In addition we have to 9102 reset the MAC if we do get this second client hello. 9103 [Steve Henson] 9104 9105 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 9106 if a DER encoded private key is RSA or DSA traditional format. Changed 9107 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 9108 format DER encoded private key. Newer code should use PKCS#8 format which 9109 has the key type encoded in the ASN1 structure. Added DER private key 9110 support to pkcs8 application. 9111 [Steve Henson] 9112 9113 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 9114 ciphersuites has been selected (as required by the SSL 3/TLS 1 9115 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 9116 is set, we interpret this as a request to violate the specification 9117 (the worst that can happen is a handshake failure, and 'correct' 9118 behaviour would result in a handshake failure anyway). 9119 [Bodo Moeller] 9120 9121 *) In SSL_CTX_add_session, take into account that there might be multiple 9122 SSL_SESSION structures with the same session ID (e.g. when two threads 9123 concurrently obtain them from an external cache). 9124 The internal cache can handle only one SSL_SESSION with a given ID, 9125 so if there's a conflict, we now throw out the old one to achieve 9126 consistency. 9127 [Bodo Moeller] 9128 9129 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 9130 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 9131 some routines that use cipher OIDs: some ciphers do not have OIDs 9132 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 9133 example. 9134 [Steve Henson] 9135 9136 *) Simplify the trust setting structure and code. Now we just have 9137 two sequences of OIDs for trusted and rejected settings. These will 9138 typically have values the same as the extended key usage extension 9139 and any application specific purposes. 9140 9141 The trust checking code now has a default behaviour: it will just 9142 check for an object with the same NID as the passed id. Functions can 9143 be provided to override either the default behaviour or the behaviour 9144 for a given id. SSL client, server and email already have functions 9145 in place for compatibility: they check the NID and also return "trusted" 9146 if the certificate is self signed. 9147 [Steve Henson] 9148 9149 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 9150 traditional format into an EVP_PKEY structure. 9151 [Steve Henson] 9152 9153 *) Add a password callback function PEM_cb() which either prompts for 9154 a password if usr_data is NULL or otherwise assumes it is a null 9155 terminated password. Allow passwords to be passed on command line 9156 environment or config files in a few more utilities. 9157 [Steve Henson] 9158 9159 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 9160 keys. Add some short names for PKCS#8 PBE algorithms and allow them 9161 to be specified on the command line for the pkcs8 and pkcs12 utilities. 9162 Update documentation. 9163 [Steve Henson] 9164 9165 *) Support for ASN1 "NULL" type. This could be handled before by using 9166 ASN1_TYPE but there wasn't any function that would try to read a NULL 9167 and produce an error if it couldn't. For compatibility we also have 9168 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 9169 don't allocate anything because they don't need to. 9170 [Steve Henson] 9171 9172 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 9173 for details. 9174 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 9175 9176 *) Rebuild of the memory allocation routines used by OpenSSL code and 9177 possibly others as well. The purpose is to make an interface that 9178 provide hooks so anyone can build a separate set of allocation and 9179 deallocation routines to be used by OpenSSL, for example memory 9180 pool implementations, or something else, which was previously hard 9181 since Malloc(), Realloc() and Free() were defined as macros having 9182 the values malloc, realloc and free, respectively (except for Win32 9183 compilations). The same is provided for memory debugging code. 9184 OpenSSL already comes with functionality to find memory leaks, but 9185 this gives people a chance to debug other memory problems. 9186 9187 With these changes, a new set of functions and macros have appeared: 9188 9189 CRYPTO_set_mem_debug_functions() [F] 9190 CRYPTO_get_mem_debug_functions() [F] 9191 CRYPTO_dbg_set_options() [F] 9192 CRYPTO_dbg_get_options() [F] 9193 CRYPTO_malloc_debug_init() [M] 9194 9195 The memory debug functions are NULL by default, unless the library 9196 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 9197 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 9198 gives the standard debugging functions that come with OpenSSL) or 9199 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 9200 provided by the library user) must be used. When the standard 9201 debugging functions are used, CRYPTO_dbg_set_options can be used to 9202 request additional information: 9203 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 9204 the CRYPTO_MDEBUG_xxx macro when compiling the library. 9205 9206 Also, things like CRYPTO_set_mem_functions will always give the 9207 expected result (the new set of functions is used for allocation 9208 and deallocation) at all times, regardless of platform and compiler 9209 options. 9210 9211 To finish it up, some functions that were never use in any other 9212 way than through macros have a new API and new semantic: 9213 9214 CRYPTO_dbg_malloc() 9215 CRYPTO_dbg_realloc() 9216 CRYPTO_dbg_free() 9217 9218 All macros of value have retained their old syntax. 9219 [Richard Levitte and Bodo Moeller] 9220 9221 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 9222 ordering of SMIMECapabilities wasn't in "strength order" and there 9223 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 9224 algorithm. 9225 [Steve Henson] 9226 9227 *) Some ASN1 types with illegal zero length encoding (INTEGER, 9228 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 9229 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 9230 9231 *) Merge in my S/MIME library for OpenSSL. This provides a simple 9232 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 9233 functionality to handle multipart/signed properly) and a utility 9234 called 'smime' to call all this stuff. This is based on code I 9235 originally wrote for Celo who have kindly allowed it to be 9236 included in OpenSSL. 9237 [Steve Henson] 9238 9239 *) Add variants des_set_key_checked and des_set_key_unchecked of 9240 des_set_key (aka des_key_sched). Global variable des_check_key 9241 decides which of these is called by des_set_key; this way 9242 des_check_key behaves as it always did, but applications and 9243 the library itself, which was buggy for des_check_key == 1, 9244 have a cleaner way to pick the version they need. 9245 [Bodo Moeller] 9246 9247 *) New function PKCS12_newpass() which changes the password of a 9248 PKCS12 structure. 9249 [Steve Henson] 9250 9251 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 9252 dynamic mix. In both cases the ids can be used as an index into the 9253 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 9254 functions so they accept a list of the field values and the 9255 application doesn't need to directly manipulate the X509_TRUST 9256 structure. 9257 [Steve Henson] 9258 9259 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 9260 need initialising. 9261 [Steve Henson] 9262 9263 *) Modify the way the V3 extension code looks up extensions. This now 9264 works in a similar way to the object code: we have some "standard" 9265 extensions in a static table which is searched with OBJ_bsearch() 9266 and the application can add dynamic ones if needed. The file 9267 crypto/x509v3/ext_dat.h now has the info: this file needs to be 9268 updated whenever a new extension is added to the core code and kept 9269 in ext_nid order. There is a simple program 'tabtest.c' which checks 9270 this. New extensions are not added too often so this file can readily 9271 be maintained manually. 9272 9273 There are two big advantages in doing things this way. The extensions 9274 can be looked up immediately and no longer need to be "added" using 9275 X509V3_add_standard_extensions(): this function now does nothing. 9276 [Side note: I get *lots* of email saying the extension code doesn't 9277 work because people forget to call this function] 9278 Also no dynamic allocation is done unless new extensions are added: 9279 so if we don't add custom extensions there is no need to call 9280 X509V3_EXT_cleanup(). 9281 [Steve Henson] 9282 9283 *) Modify enc utility's salting as follows: make salting the default. Add a 9284 magic header, so unsalted files fail gracefully instead of just decrypting 9285 to garbage. This is because not salting is a big security hole, so people 9286 should be discouraged from doing it. 9287 [Ben Laurie] 9288 9289 *) Fixes and enhancements to the 'x509' utility. It allowed a message 9290 digest to be passed on the command line but it only used this 9291 parameter when signing a certificate. Modified so all relevant 9292 operations are affected by the digest parameter including the 9293 -fingerprint and -x509toreq options. Also -x509toreq choked if a 9294 DSA key was used because it didn't fix the digest. 9295 [Steve Henson] 9296 9297 *) Initial certificate chain verify code. Currently tests the untrusted 9298 certificates for consistency with the verify purpose (which is set 9299 when the X509_STORE_CTX structure is set up) and checks the pathlength. 9300 9301 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 9302 this is because it will reject chains with invalid extensions whereas 9303 every previous version of OpenSSL and SSLeay made no checks at all. 9304 9305 Trust code: checks the root CA for the relevant trust settings. Trust 9306 settings have an initial value consistent with the verify purpose: e.g. 9307 if the verify purpose is for SSL client use it expects the CA to be 9308 trusted for SSL client use. However the default value can be changed to 9309 permit custom trust settings: one example of this would be to only trust 9310 certificates from a specific "secure" set of CAs. 9311 9312 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 9313 which should be used for version portability: especially since the 9314 verify structure is likely to change more often now. 9315 9316 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 9317 to set them. If not set then assume SSL clients will verify SSL servers 9318 and vice versa. 9319 9320 Two new options to the verify program: -untrusted allows a set of 9321 untrusted certificates to be passed in and -purpose which sets the 9322 intended purpose of the certificate. If a purpose is set then the 9323 new chain verify code is used to check extension consistency. 9324 [Steve Henson] 9325 9326 *) Support for the authority information access extension. 9327 [Steve Henson] 9328 9329 *) Modify RSA and DSA PEM read routines to transparently handle 9330 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 9331 public keys in a format compatible with certificate 9332 SubjectPublicKeyInfo structures. Unfortunately there were already 9333 functions called *_PublicKey_* which used various odd formats so 9334 these are retained for compatibility: however the DSA variants were 9335 never in a public release so they have been deleted. Changed dsa/rsa 9336 utilities to handle the new format: note no releases ever handled public 9337 keys so we should be OK. 9338 9339 The primary motivation for this change is to avoid the same fiasco 9340 that dogs private keys: there are several incompatible private key 9341 formats some of which are standard and some OpenSSL specific and 9342 require various evil hacks to allow partial transparent handling and 9343 even then it doesn't work with DER formats. Given the option anything 9344 other than PKCS#8 should be dumped: but the other formats have to 9345 stay in the name of compatibility. 9346 9347 With public keys and the benefit of hindsight one standard format 9348 is used which works with EVP_PKEY, RSA or DSA structures: though 9349 it clearly returns an error if you try to read the wrong kind of key. 9350 9351 Added a -pubkey option to the 'x509' utility to output the public key. 9352 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 9353 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 9354 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 9355 that do the same as the EVP_PKEY_assign_*() except they up the 9356 reference count of the added key (they don't "swallow" the 9357 supplied key). 9358 [Steve Henson] 9359 9360 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 9361 CRLs would fail if the file contained no certificates or no CRLs: 9362 added a new function to read in both types and return the number 9363 read: this means that if none are read it will be an error. The 9364 DER versions of the certificate and CRL reader would always fail 9365 because it isn't possible to mix certificates and CRLs in DER format 9366 without choking one or the other routine. Changed this to just read 9367 a certificate: this is the best we can do. Also modified the code 9368 in apps/verify.c to take notice of return codes: it was previously 9369 attempting to read in certificates from NULL pointers and ignoring 9370 any errors: this is one reason why the cert and CRL reader seemed 9371 to work. It doesn't check return codes from the default certificate 9372 routines: these may well fail if the certificates aren't installed. 9373 [Steve Henson] 9374 9375 *) Code to support otherName option in GeneralName. 9376 [Steve Henson] 9377 9378 *) First update to verify code. Change the verify utility 9379 so it warns if it is passed a self signed certificate: 9380 for consistency with the normal behaviour. X509_verify 9381 has been modified to it will now verify a self signed 9382 certificate if *exactly* the same certificate appears 9383 in the store: it was previously impossible to trust a 9384 single self signed certificate. This means that: 9385 openssl verify ss.pem 9386 now gives a warning about a self signed certificate but 9387 openssl verify -CAfile ss.pem ss.pem 9388 is OK. 9389 [Steve Henson] 9390 9391 *) For servers, store verify_result in SSL_SESSION data structure 9392 (and add it to external session representation). 9393 This is needed when client certificate verifications fails, 9394 but an application-provided verification callback (set by 9395 SSL_CTX_set_cert_verify_callback) allows accepting the session 9396 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 9397 but returns 1): When the session is reused, we have to set 9398 ssl->verify_result to the appropriate error code to avoid 9399 security holes. 9400 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 9401 9402 *) Fix a bug in the new PKCS#7 code: it didn't consider the 9403 case in PKCS7_dataInit() where the signed PKCS7 structure 9404 didn't contain any existing data because it was being created. 9405 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 9406 9407 *) Add a salt to the key derivation routines in enc.c. This 9408 forms the first 8 bytes of the encrypted file. Also add a 9409 -S option to allow a salt to be input on the command line. 9410 [Steve Henson] 9411 9412 *) New function X509_cmp(). Oddly enough there wasn't a function 9413 to compare two certificates. We do this by working out the SHA1 9414 hash and comparing that. X509_cmp() will be needed by the trust 9415 code. 9416 [Steve Henson] 9417 9418 *) SSL_get1_session() is like SSL_get_session(), but increments 9419 the reference count in the SSL_SESSION returned. 9420 [Geoff Thorpe <geoff@eu.c2.net>] 9421 9422 *) Fix for 'req': it was adding a null to request attributes. 9423 Also change the X509_LOOKUP and X509_INFO code to handle 9424 certificate auxiliary information. 9425 [Steve Henson] 9426 9427 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 9428 the 'enc' command. 9429 [Steve Henson] 9430 9431 *) Add the possibility to add extra information to the memory leak 9432 detecting output, to form tracebacks, showing from where each 9433 allocation was originated: CRYPTO_push_info("constant string") adds 9434 the string plus current file name and line number to a per-thread 9435 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 9436 is like calling CYRPTO_pop_info() until the stack is empty. 9437 Also updated memory leak detection code to be multi-thread-safe. 9438 [Richard Levitte] 9439 9440 *) Add options -text and -noout to pkcs7 utility and delete the 9441 encryption options which never did anything. Update docs. 9442 [Steve Henson] 9443 9444 *) Add options to some of the utilities to allow the pass phrase 9445 to be included on either the command line (not recommended on 9446 OSes like Unix) or read from the environment. Update the 9447 manpages and fix a few bugs. 9448 [Steve Henson] 9449 9450 *) Add a few manpages for some of the openssl commands. 9451 [Steve Henson] 9452 9453 *) Fix the -revoke option in ca. It was freeing up memory twice, 9454 leaking and not finding already revoked certificates. 9455 [Steve Henson] 9456 9457 *) Extensive changes to support certificate auxiliary information. 9458 This involves the use of X509_CERT_AUX structure and X509_AUX 9459 functions. An X509_AUX function such as PEM_read_X509_AUX() 9460 can still read in a certificate file in the usual way but it 9461 will also read in any additional "auxiliary information". By 9462 doing things this way a fair degree of compatibility can be 9463 retained: existing certificates can have this information added 9464 using the new 'x509' options. 9465 9466 Current auxiliary information includes an "alias" and some trust 9467 settings. The trust settings will ultimately be used in enhanced 9468 certificate chain verification routines: currently a certificate 9469 can only be trusted if it is self signed and then it is trusted 9470 for all purposes. 9471 [Steve Henson] 9472 9473 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 9474 The problem was that one of the replacement routines had not been working 9475 since SSLeay releases. For now the offending routine has been replaced 9476 with non-optimised assembler. Even so, this now gives around 95% 9477 performance improvement for 1024 bit RSA signs. 9478 [Mark Cox] 9479 9480 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 9481 handling. Most clients have the effective key size in bits equal to 9482 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 9483 A few however don't do this and instead use the size of the decrypted key 9484 to determine the RC2 key length and the AlgorithmIdentifier to determine 9485 the effective key length. In this case the effective key length can still 9486 be 40 bits but the key length can be 168 bits for example. This is fixed 9487 by manually forcing an RC2 key into the EVP_PKEY structure because the 9488 EVP code can't currently handle unusual RC2 key sizes: it always assumes 9489 the key length and effective key length are equal. 9490 [Steve Henson] 9491 9492 *) Add a bunch of functions that should simplify the creation of 9493 X509_NAME structures. Now you should be able to do: 9494 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 9495 and have it automatically work out the correct field type and fill in 9496 the structures. The more adventurous can try: 9497 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 9498 and it will (hopefully) work out the correct multibyte encoding. 9499 [Steve Henson] 9500 9501 *) Change the 'req' utility to use the new field handling and multibyte 9502 copy routines. Before the DN field creation was handled in an ad hoc 9503 way in req, ca, and x509 which was rather broken and didn't support 9504 BMPStrings or UTF8Strings. Since some software doesn't implement 9505 BMPStrings or UTF8Strings yet, they can be enabled using the config file 9506 using the dirstring_type option. See the new comment in the default 9507 openssl.cnf for more info. 9508 [Steve Henson] 9509 9510 *) Make crypto/rand/md_rand.c more robust: 9511 - Assure unique random numbers after fork(). 9512 - Make sure that concurrent threads access the global counter and 9513 md serializably so that we never lose entropy in them 9514 or use exactly the same state in multiple threads. 9515 Access to the large state is not always serializable because 9516 the additional locking could be a performance killer, and 9517 md should be large enough anyway. 9518 [Bodo Moeller] 9519 9520 *) New file apps/app_rand.c with commonly needed functionality 9521 for handling the random seed file. 9522 9523 Use the random seed file in some applications that previously did not: 9524 ca, 9525 dsaparam -genkey (which also ignored its '-rand' option), 9526 s_client, 9527 s_server, 9528 x509 (when signing). 9529 Except on systems with /dev/urandom, it is crucial to have a random 9530 seed file at least for key creation, DSA signing, and for DH exchanges; 9531 for RSA signatures we could do without one. 9532 9533 gendh and gendsa (unlike genrsa) used to read only the first byte 9534 of each file listed in the '-rand' option. The function as previously 9535 found in genrsa is now in app_rand.c and is used by all programs 9536 that support '-rand'. 9537 [Bodo Moeller] 9538 9539 *) In RAND_write_file, use mode 0600 for creating files; 9540 don't just chmod when it may be too late. 9541 [Bodo Moeller] 9542 9543 *) Report an error from X509_STORE_load_locations 9544 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 9545 [Bill Perry] 9546 9547 *) New function ASN1_mbstring_copy() this copies a string in either 9548 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 9549 into an ASN1_STRING type. A mask of permissible types is passed 9550 and it chooses the "minimal" type to use or an error if not type 9551 is suitable. 9552 [Steve Henson] 9553 9554 *) Add function equivalents to the various macros in asn1.h. The old 9555 macros are retained with an M_ prefix. Code inside the library can 9556 use the M_ macros. External code (including the openssl utility) 9557 should *NOT* in order to be "shared library friendly". 9558 [Steve Henson] 9559 9560 *) Add various functions that can check a certificate's extensions 9561 to see if it usable for various purposes such as SSL client, 9562 server or S/MIME and CAs of these types. This is currently 9563 VERY EXPERIMENTAL but will ultimately be used for certificate chain 9564 verification. Also added a -purpose flag to x509 utility to 9565 print out all the purposes. 9566 [Steve Henson] 9567 9568 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 9569 functions. 9570 [Steve Henson] 9571 9572 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 9573 for, obtain and decode and extension and obtain its critical flag. 9574 This allows all the necessary extension code to be handled in a 9575 single function call. 9576 [Steve Henson] 9577 9578 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 9579 platforms. See crypto/rc4/rc4_enc.c for further details. 9580 [Andy Polyakov] 9581 9582 *) New -noout option to asn1parse. This causes no output to be produced 9583 its main use is when combined with -strparse and -out to extract data 9584 from a file (which may not be in ASN.1 format). 9585 [Steve Henson] 9586 9587 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 9588 when producing the local key id. 9589 [Richard Levitte <levitte@stacken.kth.se>] 9590 9591 *) New option -dhparam in s_server. This allows a DH parameter file to be 9592 stated explicitly. If it is not stated then it tries the first server 9593 certificate file. The previous behaviour hard coded the filename 9594 "server.pem". 9595 [Steve Henson] 9596 9597 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 9598 a public key to be input or output. For example: 9599 openssl rsa -in key.pem -pubout -out pubkey.pem 9600 Also added necessary DSA public key functions to handle this. 9601 [Steve Henson] 9602 9603 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 9604 in the message. This was handled by allowing 9605 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 9606 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 9607 9608 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 9609 to the end of the strings whereas this didn't. This would cause problems 9610 if strings read with d2i_ASN1_bytes() were later modified. 9611 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 9612 9613 *) Fix for base64 decode bug. When a base64 bio reads only one line of 9614 data and it contains EOF it will end up returning an error. This is 9615 caused by input 46 bytes long. The cause is due to the way base64 9616 BIOs find the start of base64 encoded data. They do this by trying a 9617 trial decode on each line until they find one that works. When they 9618 do a flag is set and it starts again knowing it can pass all the 9619 data directly through the decoder. Unfortunately it doesn't reset 9620 the context it uses. This means that if EOF is reached an attempt 9621 is made to pass two EOFs through the context and this causes the 9622 resulting error. This can also cause other problems as well. As is 9623 usual with these problems it takes *ages* to find and the fix is 9624 trivial: move one line. 9625 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 9626 9627 *) Ugly workaround to get s_client and s_server working under Windows. The 9628 old code wouldn't work because it needed to select() on sockets and the 9629 tty (for keypresses and to see if data could be written). Win32 only 9630 supports select() on sockets so we select() with a 1s timeout on the 9631 sockets and then see if any characters are waiting to be read, if none 9632 are present then we retry, we also assume we can always write data to 9633 the tty. This isn't nice because the code then blocks until we've 9634 received a complete line of data and it is effectively polling the 9635 keyboard at 1s intervals: however it's quite a bit better than not 9636 working at all :-) A dedicated Windows application might handle this 9637 with an event loop for example. 9638 [Steve Henson] 9639 9640 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 9641 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 9642 will be called when RSA_sign() and RSA_verify() are used. This is useful 9643 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 9644 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 9645 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 9646 This necessitated the support of an extra signature type NID_md5_sha1 9647 for SSL signatures and modifications to the SSL library to use it instead 9648 of calling RSA_public_decrypt() and RSA_private_encrypt(). 9649 [Steve Henson] 9650 9651 *) Add new -verify -CAfile and -CApath options to the crl program, these 9652 will lookup a CRL issuers certificate and verify the signature in a 9653 similar way to the verify program. Tidy up the crl program so it 9654 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 9655 less strict. It will now permit CRL extensions even if it is not 9656 a V2 CRL: this will allow it to tolerate some broken CRLs. 9657 [Steve Henson] 9658 9659 *) Initialize all non-automatic variables each time one of the openssl 9660 sub-programs is started (this is necessary as they may be started 9661 multiple times from the "OpenSSL>" prompt). 9662 [Lennart Bang, Bodo Moeller] 9663 9664 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 9665 removing all other RSA functionality (this is what NO_RSA does). This 9666 is so (for example) those in the US can disable those operations covered 9667 by the RSA patent while allowing storage and parsing of RSA keys and RSA 9668 key generation. 9669 [Steve Henson] 9670 9671 *) Non-copying interface to BIO pairs. 9672 (still largely untested) 9673 [Bodo Moeller] 9674 9675 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 9676 ASCII string. This was handled independently in various places before. 9677 [Steve Henson] 9678 9679 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 9680 UTF8 strings a character at a time. 9681 [Steve Henson] 9682 9683 *) Use client_version from client hello to select the protocol 9684 (s23_srvr.c) and for RSA client key exchange verification 9685 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 9686 [Bodo Moeller] 9687 9688 *) Add various utility functions to handle SPKACs, these were previously 9689 handled by poking round in the structure internals. Added new function 9690 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 9691 print, verify and generate SPKACs. Based on an original idea from 9692 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 9693 [Steve Henson] 9694 9695 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 9696 [Andy Polyakov] 9697 9698 *) Allow the config file extension section to be overwritten on the 9699 command line. Based on an original idea from Massimiliano Pala 9700 <madwolf@comune.modena.it>. The new option is called -extensions 9701 and can be applied to ca, req and x509. Also -reqexts to override 9702 the request extensions in req and -crlexts to override the crl extensions 9703 in ca. 9704 [Steve Henson] 9705 9706 *) Add new feature to the SPKAC handling in ca. Now you can include 9707 the same field multiple times by preceding it by "XXXX." for example: 9708 1.OU="Unit name 1" 9709 2.OU="Unit name 2" 9710 this is the same syntax as used in the req config file. 9711 [Steve Henson] 9712 9713 *) Allow certificate extensions to be added to certificate requests. These 9714 are specified in a 'req_extensions' option of the req section of the 9715 config file. They can be printed out with the -text option to req but 9716 are otherwise ignored at present. 9717 [Steve Henson] 9718 9719 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 9720 data read consists of only the final block it would not decrypted because 9721 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 9722 A misplaced 'break' also meant the decrypted final block might not be 9723 copied until the next read. 9724 [Steve Henson] 9725 9726 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 9727 a few extra parameters to the DH structure: these will be useful if 9728 for example we want the value of 'q' or implement X9.42 DH. 9729 [Steve Henson] 9730 9731 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 9732 provides hooks that allow the default DSA functions or functions on a 9733 "per key" basis to be replaced. This allows hardware acceleration and 9734 hardware key storage to be handled without major modification to the 9735 library. Also added low level modexp hooks and CRYPTO_EX structure and 9736 associated functions. 9737 [Steve Henson] 9738 9739 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 9740 as "read only": it can't be written to and the buffer it points to will 9741 not be freed. Reading from a read only BIO is much more efficient than 9742 a normal memory BIO. This was added because there are several times when 9743 an area of memory needs to be read from a BIO. The previous method was 9744 to create a memory BIO and write the data to it, this results in two 9745 copies of the data and an O(n^2) reading algorithm. There is a new 9746 function BIO_new_mem_buf() which creates a read only memory BIO from 9747 an area of memory. Also modified the PKCS#7 routines to use read only 9748 memory BIOs. 9749 [Steve Henson] 9750 9751 *) Bugfix: ssl23_get_client_hello did not work properly when called in 9752 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 9753 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 9754 but a retry condition occured while trying to read the rest. 9755 [Bodo Moeller] 9756 9757 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 9758 NID_pkcs7_encrypted by default: this was wrong since this should almost 9759 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 9760 the encrypted data type: this is a more sensible place to put it and it 9761 allows the PKCS#12 code to be tidied up that duplicated this 9762 functionality. 9763 [Steve Henson] 9764 9765 *) Changed obj_dat.pl script so it takes its input and output files on 9766 the command line. This should avoid shell escape redirection problems 9767 under Win32. 9768 [Steve Henson] 9769 9770 *) Initial support for certificate extension requests, these are included 9771 in things like Xenroll certificate requests. Included functions to allow 9772 extensions to be obtained and added. 9773 [Steve Henson] 9774 9775 *) -crlf option to s_client and s_server for sending newlines as 9776 CRLF (as required by many protocols). 9777 [Bodo Moeller] 9778 9779 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 9780 9781 *) Install libRSAglue.a when OpenSSL is built with RSAref. 9782 [Ralf S. Engelschall] 9783 9784 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 9785 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 9786 9787 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 9788 program. 9789 [Steve Henson] 9790 9791 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 9792 DH parameters/keys (q is lost during that conversion, but the resulting 9793 DH parameters contain its length). 9794 9795 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 9796 much faster than DH_generate_parameters (which creates parameters 9797 where p = 2*q + 1), and also the smaller q makes DH computations 9798 much more efficient (160-bit exponentiation instead of 1024-bit 9799 exponentiation); so this provides a convenient way to support DHE 9800 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 9801 utter importance to use 9802 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 9803 or 9804 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 9805 when such DH parameters are used, because otherwise small subgroup 9806 attacks may become possible! 9807 [Bodo Moeller] 9808 9809 *) Avoid memory leak in i2d_DHparams. 9810 [Bodo Moeller] 9811 9812 *) Allow the -k option to be used more than once in the enc program: 9813 this allows the same encrypted message to be read by multiple recipients. 9814 [Steve Henson] 9815 9816 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 9817 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 9818 it will always use the numerical form of the OID, even if it has a short 9819 or long name. 9820 [Steve Henson] 9821 9822 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 9823 method only got called if p,q,dmp1,dmq1,iqmp components were present, 9824 otherwise bn_mod_exp was called. In the case of hardware keys for example 9825 no private key components need be present and it might store extra data 9826 in the RSA structure, which cannot be accessed from bn_mod_exp. 9827 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 9828 private key operations. 9829 [Steve Henson] 9830 9831 *) Added support for SPARC Linux. 9832 [Andy Polyakov] 9833 9834 *) pem_password_cb function type incompatibly changed from 9835 typedef int pem_password_cb(char *buf, int size, int rwflag); 9836 to 9837 ....(char *buf, int size, int rwflag, void *userdata); 9838 so that applications can pass data to their callbacks: 9839 The PEM[_ASN1]_{read,write}... functions and macros now take an 9840 additional void * argument, which is just handed through whenever 9841 the password callback is called. 9842 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 9843 9844 New function SSL_CTX_set_default_passwd_cb_userdata. 9845 9846 Compatibility note: As many C implementations push function arguments 9847 onto the stack in reverse order, the new library version is likely to 9848 interoperate with programs that have been compiled with the old 9849 pem_password_cb definition (PEM_whatever takes some data that 9850 happens to be on the stack as its last argument, and the callback 9851 just ignores this garbage); but there is no guarantee whatsoever that 9852 this will work. 9853 9854 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 9855 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 9856 problems not only on Windows, but also on some Unix platforms. 9857 To avoid problematic command lines, these definitions are now in an 9858 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 9859 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 9860 [Bodo Moeller] 9861 9862 *) MIPS III/IV assembler module is reimplemented. 9863 [Andy Polyakov] 9864 9865 *) More DES library cleanups: remove references to srand/rand and 9866 delete an unused file. 9867 [Ulf Möller] 9868 9869 *) Add support for the the free Netwide assembler (NASM) under Win32, 9870 since not many people have MASM (ml) and it can be hard to obtain. 9871 This is currently experimental but it seems to work OK and pass all 9872 the tests. Check out INSTALL.W32 for info. 9873 [Steve Henson] 9874 9875 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 9876 without temporary keys kept an extra copy of the server key, 9877 and connections with temporary keys did not free everything in case 9878 of an error. 9879 [Bodo Moeller] 9880 9881 *) New function RSA_check_key and new openssl rsa option -check 9882 for verifying the consistency of RSA keys. 9883 [Ulf Moeller, Bodo Moeller] 9884 9885 *) Various changes to make Win32 compile work: 9886 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 9887 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 9888 comparison" warnings. 9889 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 9890 [Steve Henson] 9891 9892 *) Add a debugging option to PKCS#5 v2 key generation function: when 9893 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 9894 derived keys are printed to stderr. 9895 [Steve Henson] 9896 9897 *) Copy the flags in ASN1_STRING_dup(). 9898 [Roman E. Pavlov <pre@mo.msk.ru>] 9899 9900 *) The x509 application mishandled signing requests containing DSA 9901 keys when the signing key was also DSA and the parameters didn't match. 9902 9903 It was supposed to omit the parameters when they matched the signing key: 9904 the verifying software was then supposed to automatically use the CA's 9905 parameters if they were absent from the end user certificate. 9906 9907 Omitting parameters is no longer recommended. The test was also 9908 the wrong way round! This was probably due to unusual behaviour in 9909 EVP_cmp_parameters() which returns 1 if the parameters match. 9910 This meant that parameters were omitted when they *didn't* match and 9911 the certificate was useless. Certificates signed with 'ca' didn't have 9912 this bug. 9913 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 9914 9915 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 9916 The interface is as follows: 9917 Applications can use 9918 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 9919 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 9920 "off" is now the default. 9921 The library internally uses 9922 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 9923 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 9924 to disable memory-checking temporarily. 9925 9926 Some inconsistent states that previously were possible (and were 9927 even the default) are now avoided. 9928 9929 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 9930 with each memory chunk allocated; this is occasionally more helpful 9931 than just having a counter. 9932 9933 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 9934 9935 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 9936 extensions. 9937 [Bodo Moeller] 9938 9939 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 9940 which largely parallels "options", but is for changing API behaviour, 9941 whereas "options" are about protocol behaviour. 9942 Initial "mode" flags are: 9943 9944 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 9945 a single record has been written. 9946 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 9947 retries use the same buffer location. 9948 (But all of the contents must be 9949 copied!) 9950 [Bodo Moeller] 9951 9952 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 9953 worked. 9954 9955 *) Fix problems with no-hmac etc. 9956 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>] 9957 9958 *) New functions RSA_get_default_method(), RSA_set_method() and 9959 RSA_get_method(). These allows replacement of RSA_METHODs without having 9960 to mess around with the internals of an RSA structure. 9961 [Steve Henson] 9962 9963 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 9964 Also really enable memory leak checks in openssl.c and in some 9965 test programs. 9966 [Chad C. Mulligan, Bodo Moeller] 9967 9968 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 9969 up the length of negative integers. This has now been simplified to just 9970 store the length when it is first determined and use it later, rather 9971 than trying to keep track of where data is copied and updating it to 9972 point to the end. 9973 [Steve Henson, reported by Brien Wheeler 9974 <bwheeler@authentica-security.com>] 9975 9976 *) Add a new function PKCS7_signatureVerify. This allows the verification 9977 of a PKCS#7 signature but with the signing certificate passed to the 9978 function itself. This contrasts with PKCS7_dataVerify which assumes the 9979 certificate is present in the PKCS#7 structure. This isn't always the 9980 case: certificates can be omitted from a PKCS#7 structure and be 9981 distributed by "out of band" means (such as a certificate database). 9982 [Steve Henson] 9983 9984 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 9985 function prototypes in pem.h, also change util/mkdef.pl to add the 9986 necessary function names. 9987 [Steve Henson] 9988 9989 *) mk1mf.pl (used by Windows builds) did not properly read the 9990 options set by Configure in the top level Makefile, and Configure 9991 was not even able to write more than one option correctly. 9992 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 9993 [Bodo Moeller] 9994 9995 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 9996 file to be loaded from a BIO or FILE pointer. The BIO version will 9997 for example allow memory BIOs to contain config info. 9998 [Steve Henson] 9999 10000 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 10001 Whoever hopes to achieve shared-library compatibility across versions 10002 must use this, not the compile-time macro. 10003 (Exercise 0.9.4: Which is the minimum library version required by 10004 such programs?) 10005 Note: All this applies only to multi-threaded programs, others don't 10006 need locks. 10007 [Bodo Moeller] 10008 10009 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 10010 through a BIO pair triggered the default case, i.e. 10011 SSLerr(...,SSL_R_UNKNOWN_STATE). 10012 [Bodo Moeller] 10013 10014 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 10015 can use the SSL library even if none of the specific BIOs is 10016 appropriate. 10017 [Bodo Moeller] 10018 10019 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 10020 for the encoded length. 10021 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 10022 10023 *) Add initial documentation of the X509V3 functions. 10024 [Steve Henson] 10025 10026 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 10027 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 10028 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 10029 secure PKCS#8 private key format with a high iteration count. 10030 [Steve Henson] 10031 10032 *) Fix determination of Perl interpreter: A perl or perl5 10033 _directory_ in $PATH was also accepted as the interpreter. 10034 [Ralf S. Engelschall] 10035 10036 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 10037 wrong with it but it was very old and did things like calling 10038 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 10039 unusual formatting. 10040 [Steve Henson] 10041 10042 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 10043 to use the new extension code. 10044 [Steve Henson] 10045 10046 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 10047 with macros. This should make it easier to change their form, add extra 10048 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 10049 constant. 10050 [Steve Henson] 10051 10052 *) Add to configuration table a new entry that can specify an alternative 10053 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 10054 according to Mark Crispin <MRC@Panda.COM>. 10055 [Bodo Moeller] 10056 10057#if 0 10058 *) DES CBC did not update the IV. Weird. 10059 [Ben Laurie] 10060#else 10061 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 10062 Changing the behaviour of the former might break existing programs -- 10063 where IV updating is needed, des_ncbc_encrypt can be used. 10064#endif 10065 10066 *) When bntest is run from "make test" it drives bc to check its 10067 calculations, as well as internally checking them. If an internal check 10068 fails, it needs to cause bc to give a non-zero result or make test carries 10069 on without noticing the failure. Fixed. 10070 [Ben Laurie] 10071 10072 *) DES library cleanups. 10073 [Ulf Möller] 10074 10075 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 10076 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 10077 ciphers. NOTE: although the key derivation function has been verified 10078 against some published test vectors it has not been extensively tested 10079 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 10080 of v2.0. 10081 [Steve Henson] 10082 10083 *) Instead of "mkdir -p", which is not fully portable, use new 10084 Perl script "util/mkdir-p.pl". 10085 [Bodo Moeller] 10086 10087 *) Rewrite the way password based encryption (PBE) is handled. It used to 10088 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 10089 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 10090 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 10091 the 'parameter' field of the AlgorithmIdentifier is passed to the 10092 underlying key generation function so it must do its own ASN1 parsing. 10093 This has also changed the EVP_PBE_CipherInit() function which now has a 10094 'parameter' argument instead of literal salt and iteration count values 10095 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 10096 [Steve Henson] 10097 10098 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 10099 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 10100 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 10101 KEY" because this clashed with PKCS#8 unencrypted string. Since this 10102 value was just used as a "magic string" and not used directly its 10103 value doesn't matter. 10104 [Steve Henson] 10105 10106 *) Introduce some semblance of const correctness to BN. Shame C doesn't 10107 support mutable. 10108 [Ben Laurie] 10109 10110 *) "linux-sparc64" configuration (ultrapenguin). 10111 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 10112 "linux-sparc" configuration. 10113 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 10114 10115 *) config now generates no-xxx options for missing ciphers. 10116 [Ulf Möller] 10117 10118 *) Support the EBCDIC character set (work in progress). 10119 File ebcdic.c not yet included because it has a different license. 10120 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10121 10122 *) Support BS2000/OSD-POSIX. 10123 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10124 10125 *) Make callbacks for key generation use void * instead of char *. 10126 [Ben Laurie] 10127 10128 *) Make S/MIME samples compile (not yet tested). 10129 [Ben Laurie] 10130 10131 *) Additional typesafe stacks. 10132 [Ben Laurie] 10133 10134 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 10135 [Bodo Moeller] 10136 10137 10138 Changes between 0.9.3 and 0.9.3a [29 May 1999] 10139 10140 *) New configuration variant "sco5-gcc". 10141 10142 *) Updated some demos. 10143 [Sean O Riordain, Wade Scholine] 10144 10145 *) Add missing BIO_free at exit of pkcs12 application. 10146 [Wu Zhigang] 10147 10148 *) Fix memory leak in conf.c. 10149 [Steve Henson] 10150 10151 *) Updates for Win32 to assembler version of MD5. 10152 [Steve Henson] 10153 10154 *) Set #! path to perl in apps/der_chop to where we found it 10155 instead of using a fixed path. 10156 [Bodo Moeller] 10157 10158 *) SHA library changes for irix64-mips4-cc. 10159 [Andy Polyakov] 10160 10161 *) Improvements for VMS support. 10162 [Richard Levitte] 10163 10164 10165 Changes between 0.9.2b and 0.9.3 [24 May 1999] 10166 10167 *) Bignum library bug fix. IRIX 6 passes "make test" now! 10168 This also avoids the problems with SC4.2 and unpatched SC5. 10169 [Andy Polyakov <appro@fy.chalmers.se>] 10170 10171 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 10172 These are required because of the typesafe stack would otherwise break 10173 existing code. If old code used a structure member which used to be STACK 10174 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 10175 sk_num or sk_value it would produce an error because the num, data members 10176 are not present in STACK_OF. Now it just produces a warning. sk_set 10177 replaces the old method of assigning a value to sk_value 10178 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 10179 that does this will no longer work (and should use sk_set instead) but 10180 this could be regarded as a "questionable" behaviour anyway. 10181 [Steve Henson] 10182 10183 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 10184 correctly handle encrypted S/MIME data. 10185 [Steve Henson] 10186 10187 *) Change type of various DES function arguments from des_cblock 10188 (which means, in function argument declarations, pointer to char) 10189 to des_cblock * (meaning pointer to array with 8 char elements), 10190 which allows the compiler to do more typechecking; it was like 10191 that back in SSLeay, but with lots of ugly casts. 10192 10193 Introduce new type const_des_cblock. 10194 [Bodo Moeller] 10195 10196 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 10197 problems: find RecipientInfo structure that matches recipient certificate 10198 and initialise the ASN1 structures properly based on passed cipher. 10199 [Steve Henson] 10200 10201 *) Belatedly make the BN tests actually check the results. 10202 [Ben Laurie] 10203 10204 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 10205 to and from BNs: it was completely broken. New compilation option 10206 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 10207 key elements as negative integers. 10208 [Steve Henson] 10209 10210 *) Reorganize and speed up MD5. 10211 [Andy Polyakov <appro@fy.chalmers.se>] 10212 10213 *) VMS support. 10214 [Richard Levitte <richard@levitte.org>] 10215 10216 *) New option -out to asn1parse to allow the parsed structure to be 10217 output to a file. This is most useful when combined with the -strparse 10218 option to examine the output of things like OCTET STRINGS. 10219 [Steve Henson] 10220 10221 *) Make SSL library a little more fool-proof by not requiring any longer 10222 that SSL_set_{accept,connect}_state be called before 10223 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 10224 in many applications because usually everything *appeared* to work as 10225 intended anyway -- now it really works as intended). 10226 [Bodo Moeller] 10227 10228 *) Move openssl.cnf out of lib/. 10229 [Ulf Möller] 10230 10231 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 10232 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 10233 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 10234 [Ralf S. Engelschall] 10235 10236 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 10237 handle PKCS#7 enveloped data properly. 10238 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 10239 10240 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 10241 copying pointers. The cert_st handling is changed by this in 10242 various ways (and thus what used to be known as ctx->default_cert 10243 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 10244 any longer when s->cert does not give us what we need). 10245 ssl_cert_instantiate becomes obsolete by this change. 10246 As soon as we've got the new code right (possibly it already is?), 10247 we have solved a couple of bugs of the earlier code where s->cert 10248 was used as if it could not have been shared with other SSL structures. 10249 10250 Note that using the SSL API in certain dirty ways now will result 10251 in different behaviour than observed with earlier library versions: 10252 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 10253 does not influence s as it used to. 10254 10255 In order to clean up things more thoroughly, inside SSL_SESSION 10256 we don't use CERT any longer, but a new structure SESS_CERT 10257 that holds per-session data (if available); currently, this is 10258 the peer's certificate chain and, for clients, the server's certificate 10259 and temporary key. CERT holds only those values that can have 10260 meaningful defaults in an SSL_CTX. 10261 [Bodo Moeller] 10262 10263 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 10264 from the internal representation. Various PKCS#7 fixes: remove some 10265 evil casts and set the enc_dig_alg field properly based on the signing 10266 key type. 10267 [Steve Henson] 10268 10269 *) Allow PKCS#12 password to be set from the command line or the 10270 environment. Let 'ca' get its config file name from the environment 10271 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 10272 and 'x509'). 10273 [Steve Henson] 10274 10275 *) Allow certificate policies extension to use an IA5STRING for the 10276 organization field. This is contrary to the PKIX definition but 10277 VeriSign uses it and IE5 only recognises this form. Document 'x509' 10278 extension option. 10279 [Steve Henson] 10280 10281 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 10282 without disallowing inline assembler and the like for non-pedantic builds. 10283 [Ben Laurie] 10284 10285 *) Support Borland C++ builder. 10286 [Janez Jere <jj@void.si>, modified by Ulf Möller] 10287 10288 *) Support Mingw32. 10289 [Ulf Möller] 10290 10291 *) SHA-1 cleanups and performance enhancements. 10292 [Andy Polyakov <appro@fy.chalmers.se>] 10293 10294 *) Sparc v8plus assembler for the bignum library. 10295 [Andy Polyakov <appro@fy.chalmers.se>] 10296 10297 *) Accept any -xxx and +xxx compiler options in Configure. 10298 [Ulf Möller] 10299 10300 *) Update HPUX configuration. 10301 [Anonymous] 10302 10303 *) Add missing sk_<type>_unshift() function to safestack.h 10304 [Ralf S. Engelschall] 10305 10306 *) New function SSL_CTX_use_certificate_chain_file that sets the 10307 "extra_cert"s in addition to the certificate. (This makes sense 10308 only for "PEM" format files, as chains as a whole are not 10309 DER-encoded.) 10310 [Bodo Moeller] 10311 10312 *) Support verify_depth from the SSL API. 10313 x509_vfy.c had what can be considered an off-by-one-error: 10314 Its depth (which was not part of the external interface) 10315 was actually counting the number of certificates in a chain; 10316 now it really counts the depth. 10317 [Bodo Moeller] 10318 10319 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 10320 instead of X509err, which often resulted in confusing error 10321 messages since the error codes are not globally unique 10322 (e.g. an alleged error in ssl3_accept when a certificate 10323 didn't match the private key). 10324 10325 *) New function SSL_CTX_set_session_id_context that allows to set a default 10326 value (so that you don't need SSL_set_session_id_context for each 10327 connection using the SSL_CTX). 10328 [Bodo Moeller] 10329 10330 *) OAEP decoding bug fix. 10331 [Ulf Möller] 10332 10333 *) Support INSTALL_PREFIX for package builders, as proposed by 10334 David Harris. 10335 [Bodo Moeller] 10336 10337 *) New Configure options "threads" and "no-threads". For systems 10338 where the proper compiler options are known (currently Solaris 10339 and Linux), "threads" is the default. 10340 [Bodo Moeller] 10341 10342 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 10343 [Bodo Moeller] 10344 10345 *) Install various scripts to $(OPENSSLDIR)/misc, not to 10346 $(INSTALLTOP)/bin -- they shouldn't clutter directories 10347 such as /usr/local/bin. 10348 [Bodo Moeller] 10349 10350 *) "make linux-shared" to build shared libraries. 10351 [Niels Poppe <niels@netbox.org>] 10352 10353 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 10354 [Ulf Möller] 10355 10356 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 10357 extension adding in x509 utility. 10358 [Steve Henson] 10359 10360 *) Remove NOPROTO sections and error code comments. 10361 [Ulf Möller] 10362 10363 *) Partial rewrite of the DEF file generator to now parse the ANSI 10364 prototypes. 10365 [Steve Henson] 10366 10367 *) New Configure options --prefix=DIR and --openssldir=DIR. 10368 [Ulf Möller] 10369 10370 *) Complete rewrite of the error code script(s). It is all now handled 10371 by one script at the top level which handles error code gathering, 10372 header rewriting and C source file generation. It should be much better 10373 than the old method: it now uses a modified version of Ulf's parser to 10374 read the ANSI prototypes in all header files (thus the old K&R definitions 10375 aren't needed for error creation any more) and do a better job of 10376 translating function codes into names. The old 'ASN1 error code imbedded 10377 in a comment' is no longer necessary and it doesn't use .err files which 10378 have now been deleted. Also the error code call doesn't have to appear all 10379 on one line (which resulted in some large lines...). 10380 [Steve Henson] 10381 10382 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 10383 [Bodo Moeller] 10384 10385 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 10386 0 (which usually indicates a closed connection), but continue reading. 10387 [Bodo Moeller] 10388 10389 *) Fix some race conditions. 10390 [Bodo Moeller] 10391 10392 *) Add support for CRL distribution points extension. Add Certificate 10393 Policies and CRL distribution points documentation. 10394 [Steve Henson] 10395 10396 *) Move the autogenerated header file parts to crypto/opensslconf.h. 10397 [Ulf Möller] 10398 10399 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 10400 8 of keying material. Merlin has also confirmed interop with this fix 10401 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 10402 [Merlin Hughes <merlin@baltimore.ie>] 10403 10404 *) Fix lots of warnings. 10405 [Richard Levitte <levitte@stacken.kth.se>] 10406 10407 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 10408 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 10409 [Richard Levitte <levitte@stacken.kth.se>] 10410 10411 *) Fix problems with sizeof(long) == 8. 10412 [Andy Polyakov <appro@fy.chalmers.se>] 10413 10414 *) Change functions to ANSI C. 10415 [Ulf Möller] 10416 10417 *) Fix typos in error codes. 10418 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller] 10419 10420 *) Remove defunct assembler files from Configure. 10421 [Ulf Möller] 10422 10423 *) SPARC v8 assembler BIGNUM implementation. 10424 [Andy Polyakov <appro@fy.chalmers.se>] 10425 10426 *) Support for Certificate Policies extension: both print and set. 10427 Various additions to support the r2i method this uses. 10428 [Steve Henson] 10429 10430 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 10431 return a const string when you are expecting an allocated buffer. 10432 [Ben Laurie] 10433 10434 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 10435 types DirectoryString and DisplayText. 10436 [Steve Henson] 10437 10438 *) Add code to allow r2i extensions to access the configuration database, 10439 add an LHASH database driver and add several ctx helper functions. 10440 [Steve Henson] 10441 10442 *) Fix an evil bug in bn_expand2() which caused various BN functions to 10443 fail when they extended the size of a BIGNUM. 10444 [Steve Henson] 10445 10446 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 10447 support typesafe stack. 10448 [Steve Henson] 10449 10450 *) Fix typo in SSL_[gs]et_options(). 10451 [Nils Frostberg <nils@medcom.se>] 10452 10453 *) Delete various functions and files that belonged to the (now obsolete) 10454 old X509V3 handling code. 10455 [Steve Henson] 10456 10457 *) New Configure option "rsaref". 10458 [Ulf Möller] 10459 10460 *) Don't auto-generate pem.h. 10461 [Bodo Moeller] 10462 10463 *) Introduce type-safe ASN.1 SETs. 10464 [Ben Laurie] 10465 10466 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 10467 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 10468 10469 *) Introduce type-safe STACKs. This will almost certainly break lots of code 10470 that links with OpenSSL (well at least cause lots of warnings), but fear 10471 not: the conversion is trivial, and it eliminates loads of evil casts. A 10472 few STACKed things have been converted already. Feel free to convert more. 10473 In the fullness of time, I'll do away with the STACK type altogether. 10474 [Ben Laurie] 10475 10476 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 10477 specified in <certfile> by updating the entry in the index.txt file. 10478 This way one no longer has to edit the index.txt file manually for 10479 revoking a certificate. The -revoke option does the gory details now. 10480 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 10481 10482 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 10483 `-text' option at all and this way the `-noout -text' combination was 10484 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 10485 [Ralf S. Engelschall] 10486 10487 *) Make sure a corresponding plain text error message exists for the 10488 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 10489 verify callback function determined that a certificate was revoked. 10490 [Ralf S. Engelschall] 10491 10492 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 10493 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 10494 all available cipers including rc5, which was forgotten until now. 10495 In order to let the testing shell script know which algorithms 10496 are available, a new (up to now undocumented) command 10497 "openssl list-cipher-commands" is used. 10498 [Bodo Moeller] 10499 10500 *) Bugfix: s_client occasionally would sleep in select() when 10501 it should have checked SSL_pending() first. 10502 [Bodo Moeller] 10503 10504 *) New functions DSA_do_sign and DSA_do_verify to provide access to 10505 the raw DSA values prior to ASN.1 encoding. 10506 [Ulf Möller] 10507 10508 *) Tweaks to Configure 10509 [Niels Poppe <niels@netbox.org>] 10510 10511 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 10512 yet... 10513 [Steve Henson] 10514 10515 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 10516 [Ulf Möller] 10517 10518 *) New config option to avoid instructions that are illegal on the 80386. 10519 The default code is faster, but requires at least a 486. 10520 [Ulf Möller] 10521 10522 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 10523 SSL2_SERVER_VERSION (not used at all) macros, which are now the 10524 same as SSL2_VERSION anyway. 10525 [Bodo Moeller] 10526 10527 *) New "-showcerts" option for s_client. 10528 [Bodo Moeller] 10529 10530 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 10531 application. Various cleanups and fixes. 10532 [Steve Henson] 10533 10534 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 10535 modify error routines to work internally. Add error codes and PBE init 10536 to library startup routines. 10537 [Steve Henson] 10538 10539 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 10540 packing functions to asn1 and evp. Changed function names and error 10541 codes along the way. 10542 [Steve Henson] 10543 10544 *) PKCS12 integration: and so it begins... First of several patches to 10545 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 10546 objects to objects.h 10547 [Steve Henson] 10548 10549 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 10550 and display support for Thawte strong extranet extension. 10551 [Steve Henson] 10552 10553 *) Add LinuxPPC support. 10554 [Jeff Dubrule <igor@pobox.org>] 10555 10556 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 10557 bn_div_words in alpha.s. 10558 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 10559 10560 *) Make sure the RSA OAEP test is skipped under -DRSAref because 10561 OAEP isn't supported when OpenSSL is built with RSAref. 10562 [Ulf Moeller <ulf@fitug.de>] 10563 10564 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 10565 so they no longer are missing under -DNOPROTO. 10566 [Soren S. Jorvang <soren@t.dk>] 10567 10568 10569 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 10570 10571 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 10572 doesn't work when the session is reused. Coming soon! 10573 [Ben Laurie] 10574 10575 *) Fix a security hole, that allows sessions to be reused in the wrong 10576 context thus bypassing client cert protection! All software that uses 10577 client certs and session caches in multiple contexts NEEDS PATCHING to 10578 allow session reuse! A fuller solution is in the works. 10579 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 10580 10581 *) Some more source tree cleanups (removed obsolete files 10582 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 10583 permission on "config" script to be executable) and a fix for the INSTALL 10584 document. 10585 [Ulf Moeller <ulf@fitug.de>] 10586 10587 *) Remove some legacy and erroneous uses of malloc, free instead of 10588 Malloc, Free. 10589 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 10590 10591 *) Make rsa_oaep_test return non-zero on error. 10592 [Ulf Moeller <ulf@fitug.de>] 10593 10594 *) Add support for native Solaris shared libraries. Configure 10595 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 10596 if someone would make that last step automatic. 10597 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 10598 10599 *) ctx_size was not built with the right compiler during "make links". Fixed. 10600 [Ben Laurie] 10601 10602 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 10603 except NULL ciphers". This means the default cipher list will no longer 10604 enable NULL ciphers. They need to be specifically enabled e.g. with 10605 the string "DEFAULT:eNULL". 10606 [Steve Henson] 10607 10608 *) Fix to RSA private encryption routines: if p < q then it would 10609 occasionally produce an invalid result. This will only happen with 10610 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 10611 [Steve Henson] 10612 10613 *) Be less restrictive and allow also `perl util/perlpath.pl 10614 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 10615 because this way one can also use an interpreter named `perl5' (which is 10616 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 10617 installed as `perl'). 10618 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10619 10620 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 10621 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10622 10623 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 10624 advapi32.lib to Win32 build and change the pem test comparision 10625 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 10626 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 10627 and crypto/des/ede_cbcm_enc.c. 10628 [Steve Henson] 10629 10630 *) DES quad checksum was broken on big-endian architectures. Fixed. 10631 [Ben Laurie] 10632 10633 *) Comment out two functions in bio.h that aren't implemented. Fix up the 10634 Win32 test batch file so it (might) work again. The Win32 test batch file 10635 is horrible: I feel ill.... 10636 [Steve Henson] 10637 10638 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 10639 in e_os.h. Audit of header files to check ANSI and non ANSI 10640 sections: 10 functions were absent from non ANSI section and not exported 10641 from Windows DLLs. Fixed up libeay.num for new functions. 10642 [Steve Henson] 10643 10644 *) Make `openssl version' output lines consistent. 10645 [Ralf S. Engelschall] 10646 10647 *) Fix Win32 symbol export lists for BIO functions: Added 10648 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 10649 to ms/libeay{16,32}.def. 10650 [Ralf S. Engelschall] 10651 10652 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 10653 fine under Unix and passes some trivial tests I've now added. But the 10654 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 10655 added to make sure no one expects that this stuff really works in the 10656 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 10657 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 10658 openssl_bio.xs. 10659 [Ralf S. Engelschall] 10660 10661 *) Fix the generation of two part addresses in perl. 10662 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 10663 10664 *) Add config entry for Linux on MIPS. 10665 [John Tobey <jtobey@channel1.com>] 10666 10667 *) Make links whenever Configure is run, unless we are on Windoze. 10668 [Ben Laurie] 10669 10670 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 10671 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 10672 in CRLs. 10673 [Steve Henson] 10674 10675 *) Add a useful kludge to allow package maintainers to specify compiler and 10676 other platforms details on the command line without having to patch the 10677 Configure script everytime: One now can use ``perl Configure 10678 <id>:<details>'', i.e. platform ids are allowed to have details appended 10679 to them (seperated by colons). This is treated as there would be a static 10680 pre-configured entry in Configure's %table under key <id> with value 10681 <details> and ``perl Configure <id>'' is called. So, when you want to 10682 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 10683 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 10684 now, which overrides the FreeBSD-elf entry on-the-fly. 10685 [Ralf S. Engelschall] 10686 10687 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 10688 [Ben Laurie] 10689 10690 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 10691 on the `perl Configure ...' command line. This way one can compile 10692 OpenSSL libraries with Position Independent Code (PIC) which is needed 10693 for linking it into DSOs. 10694 [Ralf S. Engelschall] 10695 10696 *) Remarkably, export ciphers were totally broken and no-one had noticed! 10697 Fixed. 10698 [Ben Laurie] 10699 10700 *) Cleaned up the LICENSE document: The official contact for any license 10701 questions now is the OpenSSL core team under openssl-core@openssl.org. 10702 And add a paragraph about the dual-license situation to make sure people 10703 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 10704 to the OpenSSL toolkit. 10705 [Ralf S. Engelschall] 10706 10707 *) General source tree makefile cleanups: Made `making xxx in yyy...' 10708 display consistent in the source tree and replaced `/bin/rm' by `rm'. 10709 Additonally cleaned up the `make links' target: Remove unnecessary 10710 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 10711 to speed processing and no longer clutter the display with confusing 10712 stuff. Instead only the actually done links are displayed. 10713 [Ralf S. Engelschall] 10714 10715 *) Permit null encryption ciphersuites, used for authentication only. It used 10716 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 10717 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 10718 encryption. 10719 [Ben Laurie] 10720 10721 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 10722 signed attributes when verifying signatures (this would break them), 10723 the detached data encoding was wrong and public keys obtained using 10724 X509_get_pubkey() weren't freed. 10725 [Steve Henson] 10726 10727 *) Add text documentation for the BUFFER functions. Also added a work around 10728 to a Win95 console bug. This was triggered by the password read stuff: the 10729 last character typed gets carried over to the next fread(). If you were 10730 generating a new cert request using 'req' for example then the last 10731 character of the passphrase would be CR which would then enter the first 10732 field as blank. 10733 [Steve Henson] 10734 10735 *) Added the new `Includes OpenSSL Cryptography Software' button as 10736 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 10737 button and can be used by applications based on OpenSSL to show the 10738 relationship to the OpenSSL project. 10739 [Ralf S. Engelschall] 10740 10741 *) Remove confusing variables in function signatures in files 10742 ssl/ssl_lib.c and ssl/ssl.h. 10743 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10744 10745 *) Don't install bss_file.c under PREFIX/include/ 10746 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10747 10748 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 10749 functions that return function pointers and has support for NT specific 10750 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 10751 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 10752 unsigned to signed types: this was killing the Win32 compile. 10753 [Steve Henson] 10754 10755 *) Add new certificate file to stack functions, 10756 SSL_add_dir_cert_subjects_to_stack() and 10757 SSL_add_file_cert_subjects_to_stack(). These largely supplant 10758 SSL_load_client_CA_file(), and can be used to add multiple certs easily 10759 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 10760 This means that Apache-SSL and similar packages don't have to mess around 10761 to add as many CAs as they want to the preferred list. 10762 [Ben Laurie] 10763 10764 *) Experiment with doxygen documentation. Currently only partially applied to 10765 ssl/ssl_lib.c. 10766 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 10767 openssl.doxy as the configuration file. 10768 [Ben Laurie] 10769 10770 *) Get rid of remaining C++-style comments which strict C compilers hate. 10771 [Ralf S. Engelschall, pointed out by Carlos Amengual] 10772 10773 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 10774 compiled in by default: it has problems with large keys. 10775 [Steve Henson] 10776 10777 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 10778 DH private keys and/or callback functions which directly correspond to 10779 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 10780 is needed for applications which have to configure certificates on a 10781 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 10782 (e.g. s_server). 10783 For the RSA certificate situation is makes no difference, but 10784 for the DSA certificate situation this fixes the "no shared cipher" 10785 problem where the OpenSSL cipher selection procedure failed because the 10786 temporary keys were not overtaken from the context and the API provided 10787 no way to reconfigure them. 10788 The new functions now let applications reconfigure the stuff and they 10789 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 10790 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 10791 non-public-API function ssl_cert_instantiate() is used as a helper 10792 function and also to reduce code redundancy inside ssl_rsa.c. 10793 [Ralf S. Engelschall] 10794 10795 *) Move s_server -dcert and -dkey options out of the undocumented feature 10796 area because they are useful for the DSA situation and should be 10797 recognized by the users. 10798 [Ralf S. Engelschall] 10799 10800 *) Fix the cipher decision scheme for export ciphers: the export bits are 10801 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 10802 SSL_EXP_MASK. So, the original variable has to be used instead of the 10803 already masked variable. 10804 [Richard Levitte <levitte@stacken.kth.se>] 10805 10806 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 10807 [Richard Levitte <levitte@stacken.kth.se>] 10808 10809 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 10810 from `int' to `unsigned int' because it's a length and initialized by 10811 EVP_DigestFinal() which expects an `unsigned int *'. 10812 [Richard Levitte <levitte@stacken.kth.se>] 10813 10814 *) Don't hard-code path to Perl interpreter on shebang line of Configure 10815 script. Instead use the usual Shell->Perl transition trick. 10816 [Ralf S. Engelschall] 10817 10818 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 10819 (in addition to RSA certificates) to match the behaviour of `openssl dsa 10820 -noout -modulus' as it's already the case for `openssl rsa -noout 10821 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 10822 currently the public key is printed (a decision which was already done by 10823 `openssl dsa -modulus' in the past) which serves a similar purpose. 10824 Additionally the NO_RSA no longer completely removes the whole -modulus 10825 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 10826 now, too. 10827 [Ralf S. Engelschall] 10828 10829 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 10830 BIO. See the source (crypto/evp/bio_ok.c) for more info. 10831 [Arne Ansper <arne@ats.cyber.ee>] 10832 10833 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 10834 to be added. Now both 'req' and 'ca' can use new objects defined in the 10835 config file. 10836 [Steve Henson] 10837 10838 *) Add cool BIO that does syslog (or event log on NT). 10839 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 10840 10841 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 10842 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 10843 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 10844 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 10845 [Ben Laurie] 10846 10847 *) Add preliminary config info for new extension code. 10848 [Steve Henson] 10849 10850 *) Make RSA_NO_PADDING really use no padding. 10851 [Ulf Moeller <ulf@fitug.de>] 10852 10853 *) Generate errors when private/public key check is done. 10854 [Ben Laurie] 10855 10856 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 10857 for some CRL extensions and new objects added. 10858 [Steve Henson] 10859 10860 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 10861 key usage extension and fuller support for authority key id. 10862 [Steve Henson] 10863 10864 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 10865 padding method for RSA, which is recommended for new applications in PKCS 10866 #1 v2.0 (RFC 2437, October 1998). 10867 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 10868 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 10869 against Bleichbacher's attack on RSA. 10870 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 10871 Ben Laurie] 10872 10873 *) Updates to the new SSL compression code 10874 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10875 10876 *) Fix so that the version number in the master secret, when passed 10877 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 10878 (because the server will not accept higher), that the version number 10879 is 0x03,0x01, not 0x03,0x00 10880 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10881 10882 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 10883 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 10884 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 10885 [Steve Henson] 10886 10887 *) Support for RAW extensions where an arbitrary extension can be 10888 created by including its DER encoding. See apps/openssl.cnf for 10889 an example. 10890 [Steve Henson] 10891 10892 *) Make sure latest Perl versions don't interpret some generated C array 10893 code as Perl array code in the crypto/err/err_genc.pl script. 10894 [Lars Weber <3weber@informatik.uni-hamburg.de>] 10895 10896 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 10897 not many people have the assembler. Various Win32 compilation fixes and 10898 update to the INSTALL.W32 file with (hopefully) more accurate Win32 10899 build instructions. 10900 [Steve Henson] 10901 10902 *) Modify configure script 'Configure' to automatically create crypto/date.h 10903 file under Win32 and also build pem.h from pem.org. New script 10904 util/mkfiles.pl to create the MINFO file on environments that can't do a 10905 'make files': perl util/mkfiles.pl >MINFO should work. 10906 [Steve Henson] 10907 10908 *) Major rework of DES function declarations, in the pursuit of correctness 10909 and purity. As a result, many evil casts evaporated, and some weirdness, 10910 too. You may find this causes warnings in your code. Zapping your evil 10911 casts will probably fix them. Mostly. 10912 [Ben Laurie] 10913 10914 *) Fix for a typo in asn1.h. Bug fix to object creation script 10915 obj_dat.pl. It considered a zero in an object definition to mean 10916 "end of object": none of the objects in objects.h have any zeros 10917 so it wasn't spotted. 10918 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 10919 10920 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 10921 Masking (CBCM). In the absence of test vectors, the best I have been able 10922 to do is check that the decrypt undoes the encrypt, so far. Send me test 10923 vectors if you have them. 10924 [Ben Laurie] 10925 10926 *) Correct calculation of key length for export ciphers (too much space was 10927 allocated for null ciphers). This has not been tested! 10928 [Ben Laurie] 10929 10930 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 10931 message is now correct (it understands "crypto" and "ssl" on its 10932 command line). There is also now an "update" option. This will update 10933 the util/ssleay.num and util/libeay.num files with any new functions. 10934 If you do a: 10935 perl util/mkdef.pl crypto ssl update 10936 it will update them. 10937 [Steve Henson] 10938 10939 *) Overhauled the Perl interface (perl/*): 10940 - ported BN stuff to OpenSSL's different BN library 10941 - made the perl/ source tree CVS-aware 10942 - renamed the package from SSLeay to OpenSSL (the files still contain 10943 their history because I've copied them in the repository) 10944 - removed obsolete files (the test scripts will be replaced 10945 by better Test::Harness variants in the future) 10946 [Ralf S. Engelschall] 10947 10948 *) First cut for a very conservative source tree cleanup: 10949 1. merge various obsolete readme texts into doc/ssleay.txt 10950 where we collect the old documents and readme texts. 10951 2. remove the first part of files where I'm already sure that we no 10952 longer need them because of three reasons: either they are just temporary 10953 files which were left by Eric or they are preserved original files where 10954 I've verified that the diff is also available in the CVS via "cvs diff 10955 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 10956 the crypto/md/ stuff). 10957 [Ralf S. Engelschall] 10958 10959 *) More extension code. Incomplete support for subject and issuer alt 10960 name, issuer and authority key id. Change the i2v function parameters 10961 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 10962 what that's for :-) Fix to ASN1 macro which messed up 10963 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 10964 [Steve Henson] 10965 10966 *) Preliminary support for ENUMERATED type. This is largely copied from the 10967 INTEGER code. 10968 [Steve Henson] 10969 10970 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 10971 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10972 10973 *) Make sure `make rehash' target really finds the `openssl' program. 10974 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10975 10976 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 10977 like to hear about it if this slows down other processors. 10978 [Ben Laurie] 10979 10980 *) Add CygWin32 platform information to Configure script. 10981 [Alan Batie <batie@aahz.jf.intel.com>] 10982 10983 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 10984 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 10985 10986 *) New program nseq to manipulate netscape certificate sequences 10987 [Steve Henson] 10988 10989 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 10990 few typos. 10991 [Steve Henson] 10992 10993 *) Fixes to BN code. Previously the default was to define BN_RECURSION 10994 but the BN code had some problems that would cause failures when 10995 doing certificate verification and some other functions. 10996 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10997 10998 *) Add ASN1 and PEM code to support netscape certificate sequences. 10999 [Steve Henson] 11000 11001 *) Add ASN1 and PEM code to support netscape certificate sequences. 11002 [Steve Henson] 11003 11004 *) Add several PKIX and private extended key usage OIDs. 11005 [Steve Henson] 11006 11007 *) Modify the 'ca' program to handle the new extension code. Modify 11008 openssl.cnf for new extension format, add comments. 11009 [Steve Henson] 11010 11011 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 11012 and add a sample to openssl.cnf so req -x509 now adds appropriate 11013 CA extensions. 11014 [Steve Henson] 11015 11016 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 11017 error code, add initial support to X509_print() and x509 application. 11018 [Steve Henson] 11019 11020 *) Takes a deep breath and start addding X509 V3 extension support code. Add 11021 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 11022 stuff is currently isolated and isn't even compiled yet. 11023 [Steve Henson] 11024 11025 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 11026 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 11027 Removed the versions check from X509 routines when loading extensions: 11028 this allows certain broken certificates that don't set the version 11029 properly to be processed. 11030 [Steve Henson] 11031 11032 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 11033 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 11034 can still be regenerated with "make depend". 11035 [Ben Laurie] 11036 11037 *) Spelling mistake in C version of CAST-128. 11038 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 11039 11040 *) Changes to the error generation code. The perl script err-code.pl 11041 now reads in the old error codes and retains the old numbers, only 11042 adding new ones if necessary. It also only changes the .err files if new 11043 codes are added. The makefiles have been modified to only insert errors 11044 when needed (to avoid needlessly modifying header files). This is done 11045 by only inserting errors if the .err file is newer than the auto generated 11046 C file. To rebuild all the error codes from scratch (the old behaviour) 11047 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 11048 or delete all the .err files. 11049 [Steve Henson] 11050 11051 *) CAST-128 was incorrectly implemented for short keys. The C version has 11052 been fixed, but is untested. The assembler versions are also fixed, but 11053 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 11054 to regenerate it if needed. 11055 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 11056 Hagino <itojun@kame.net>] 11057 11058 *) File was opened incorrectly in randfile.c. 11059 [Ulf Möller <ulf@fitug.de>] 11060 11061 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 11062 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 11063 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 11064 al: it's just almost always a UTCTime. Note this patch adds new error 11065 codes so do a "make errors" if there are problems. 11066 [Steve Henson] 11067 11068 *) Correct Linux 1 recognition in config. 11069 [Ulf Möller <ulf@fitug.de>] 11070 11071 *) Remove pointless MD5 hash when using DSA keys in ca. 11072 [Anonymous <nobody@replay.com>] 11073 11074 *) Generate an error if given an empty string as a cert directory. Also 11075 generate an error if handed NULL (previously returned 0 to indicate an 11076 error, but didn't set one). 11077 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 11078 11079 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 11080 [Ben Laurie] 11081 11082 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 11083 parameters. This was causing a warning which killed off the Win32 compile. 11084 [Steve Henson] 11085 11086 *) Remove C++ style comments from crypto/bn/bn_local.h. 11087 [Neil Costigan <neil.costigan@celocom.com>] 11088 11089 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 11090 based on a text string, looking up short and long names and finally 11091 "dot" format. The "dot" format stuff didn't work. Added new function 11092 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 11093 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 11094 OID is not part of the table. 11095 [Steve Henson] 11096 11097 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 11098 X509_LOOKUP_by_alias(). 11099 [Ben Laurie] 11100 11101 *) Sort openssl functions by name. 11102 [Ben Laurie] 11103 11104 *) Get the gendsa program working (hopefully) and add it to app list. Remove 11105 encryption from sample DSA keys (in case anyone is interested the password 11106 was "1234"). 11107 [Steve Henson] 11108 11109 *) Make _all_ *_free functions accept a NULL pointer. 11110 [Frans Heymans <fheymans@isaserver.be>] 11111 11112 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 11113 NULL pointers. 11114 [Anonymous <nobody@replay.com>] 11115 11116 *) s_server should send the CAfile as acceptable CAs, not its own cert. 11117 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 11118 11119 *) Don't blow it for numeric -newkey arguments to apps/req. 11120 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 11121 11122 *) Temp key "for export" tests were wrong in s3_srvr.c. 11123 [Anonymous <nobody@replay.com>] 11124 11125 *) Add prototype for temp key callback functions 11126 SSL_CTX_set_tmp_{rsa,dh}_callback(). 11127 [Ben Laurie] 11128 11129 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 11130 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 11131 [Steve Henson] 11132 11133 *) X509_name_add_entry() freed the wrong thing after an error. 11134 [Arne Ansper <arne@ats.cyber.ee>] 11135 11136 *) rsa_eay.c would attempt to free a NULL context. 11137 [Arne Ansper <arne@ats.cyber.ee>] 11138 11139 *) BIO_s_socket() had a broken should_retry() on Windoze. 11140 [Arne Ansper <arne@ats.cyber.ee>] 11141 11142 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 11143 [Arne Ansper <arne@ats.cyber.ee>] 11144 11145 *) Make sure the already existing X509_STORE->depth variable is initialized 11146 in X509_STORE_new(), but document the fact that this variable is still 11147 unused in the certificate verification process. 11148 [Ralf S. Engelschall] 11149 11150 *) Fix the various library and apps files to free up pkeys obtained from 11151 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 11152 [Steve Henson] 11153 11154 *) Fix reference counting in X509_PUBKEY_get(). This makes 11155 demos/maurice/example2.c work, amongst others, probably. 11156 [Steve Henson and Ben Laurie] 11157 11158 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 11159 `openssl' and second, the shortcut symlinks for the `openssl <command>' 11160 are no longer created. This way we have a single and consistent command 11161 line interface `openssl <command>', similar to `cvs <command>'. 11162 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 11163 11164 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 11165 BIT STRING wrapper always have zero unused bits. 11166 [Steve Henson] 11167 11168 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 11169 [Steve Henson] 11170 11171 *) Make the top-level INSTALL documentation easier to understand. 11172 [Paul Sutton] 11173 11174 *) Makefiles updated to exit if an error occurs in a sub-directory 11175 make (including if user presses ^C) [Paul Sutton] 11176 11177 *) Make Montgomery context stuff explicit in RSA data structure. 11178 [Ben Laurie] 11179 11180 *) Fix build order of pem and err to allow for generated pem.h. 11181 [Ben Laurie] 11182 11183 *) Fix renumbering bug in X509_NAME_delete_entry(). 11184 [Ben Laurie] 11185 11186 *) Enhanced the err-ins.pl script so it makes the error library number 11187 global and can add a library name. This is needed for external ASN1 and 11188 other error libraries. 11189 [Steve Henson] 11190 11191 *) Fixed sk_insert which never worked properly. 11192 [Steve Henson] 11193 11194 *) Fix ASN1 macros so they can handle indefinite length construted 11195 EXPLICIT tags. Some non standard certificates use these: they can now 11196 be read in. 11197 [Steve Henson] 11198 11199 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 11200 into a single doc/ssleay.txt bundle. This way the information is still 11201 preserved but no longer messes up this directory. Now it's new room for 11202 the new set of documenation files. 11203 [Ralf S. Engelschall] 11204 11205 *) SETs were incorrectly DER encoded. This was a major pain, because they 11206 shared code with SEQUENCEs, which aren't coded the same. This means that 11207 almost everything to do with SETs or SEQUENCEs has either changed name or 11208 number of arguments. 11209 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 11210 11211 *) Fix test data to work with the above. 11212 [Ben Laurie] 11213 11214 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 11215 was already fixed by Eric for 0.9.1 it seems. 11216 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>] 11217 11218 *) Autodetect FreeBSD3. 11219 [Ben Laurie] 11220 11221 *) Fix various bugs in Configure. This affects the following platforms: 11222 nextstep 11223 ncr-scde 11224 unixware-2.0 11225 unixware-2.0-pentium 11226 sco5-cc. 11227 [Ben Laurie] 11228 11229 *) Eliminate generated files from CVS. Reorder tests to regenerate files 11230 before they are needed. 11231 [Ben Laurie] 11232 11233 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 11234 [Ben Laurie] 11235 11236 11237 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 11238 11239 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 11240 changed SSLeay to OpenSSL in version strings. 11241 [Ralf S. Engelschall] 11242 11243 *) Some fixups to the top-level documents. 11244 [Paul Sutton] 11245 11246 *) Fixed the nasty bug where rsaref.h was not found under compile-time 11247 because the symlink to include/ was missing. 11248 [Ralf S. Engelschall] 11249 11250 *) Incorporated the popular no-RSA/DSA-only patches 11251 which allow to compile a RSA-free SSLeay. 11252 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 11253 11254 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 11255 when "ssleay" is still not found. 11256 [Ralf S. Engelschall] 11257 11258 *) Added more platforms to Configure: Cray T3E, HPUX 11, 11259 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 11260 11261 *) Updated the README file. 11262 [Ralf S. Engelschall] 11263 11264 *) Added various .cvsignore files in the CVS repository subdirs 11265 to make a "cvs update" really silent. 11266 [Ralf S. Engelschall] 11267 11268 *) Recompiled the error-definition header files and added 11269 missing symbols to the Win32 linker tables. 11270 [Ralf S. Engelschall] 11271 11272 *) Cleaned up the top-level documents; 11273 o new files: CHANGES and LICENSE 11274 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 11275 o merged COPYRIGHT into LICENSE 11276 o removed obsolete TODO file 11277 o renamed MICROSOFT to INSTALL.W32 11278 [Ralf S. Engelschall] 11279 11280 *) Removed dummy files from the 0.9.1b source tree: 11281 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 11282 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 11283 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 11284 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 11285 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 11286 [Ralf S. Engelschall] 11287 11288 *) Added various platform portability fixes. 11289 [Mark J. Cox] 11290 11291 *) The Genesis of the OpenSSL rpject: 11292 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 11293 Young and Tim J. Hudson created while they were working for C2Net until 11294 summer 1998. 11295 [The OpenSSL Project] 11296 11297 11298 Changes between 0.9.0b and 0.9.1b [not released] 11299 11300 *) Updated a few CA certificates under certs/ 11301 [Eric A. Young] 11302 11303 *) Changed some BIGNUM api stuff. 11304 [Eric A. Young] 11305 11306 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 11307 DGUX x86, Linux Alpha, etc. 11308 [Eric A. Young] 11309 11310 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 11311 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 11312 available). 11313 [Eric A. Young] 11314 11315 *) Add -strparse option to asn1pars program which parses nested 11316 binary structures 11317 [Dr Stephen Henson <shenson@bigfoot.com>] 11318 11319 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 11320 [Eric A. Young] 11321 11322 *) DSA fix for "ca" program. 11323 [Eric A. Young] 11324 11325 *) Added "-genkey" option to "dsaparam" program. 11326 [Eric A. Young] 11327 11328 *) Added RIPE MD160 (rmd160) message digest. 11329 [Eric A. Young] 11330 11331 *) Added -a (all) option to "ssleay version" command. 11332 [Eric A. Young] 11333 11334 *) Added PLATFORM define which is the id given to Configure. 11335 [Eric A. Young] 11336 11337 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 11338 [Eric A. Young] 11339 11340 *) Extended the ASN.1 parser routines. 11341 [Eric A. Young] 11342 11343 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 11344 [Eric A. Young] 11345 11346 *) Added a BN_CTX to the BN library. 11347 [Eric A. Young] 11348 11349 *) Fixed the weak key values in DES library 11350 [Eric A. Young] 11351 11352 *) Changed API in EVP library for cipher aliases. 11353 [Eric A. Young] 11354 11355 *) Added support for RC2/64bit cipher. 11356 [Eric A. Young] 11357 11358 *) Converted the lhash library to the crypto/mem.c functions. 11359 [Eric A. Young] 11360 11361 *) Added more recognized ASN.1 object ids. 11362 [Eric A. Young] 11363 11364 *) Added more RSA padding checks for SSL/TLS. 11365 [Eric A. Young] 11366 11367 *) Added BIO proxy/filter functionality. 11368 [Eric A. Young] 11369 11370 *) Added extra_certs to SSL_CTX which can be used 11371 send extra CA certificates to the client in the CA cert chain sending 11372 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 11373 [Eric A. Young] 11374 11375 *) Now Fortezza is denied in the authentication phase because 11376 this is key exchange mechanism is not supported by SSLeay at all. 11377 [Eric A. Young] 11378 11379 *) Additional PKCS1 checks. 11380 [Eric A. Young] 11381 11382 *) Support the string "TLSv1" for all TLS v1 ciphers. 11383 [Eric A. Young] 11384 11385 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 11386 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 11387 [Eric A. Young] 11388 11389 *) Fixed a few memory leaks. 11390 [Eric A. Young] 11391 11392 *) Fixed various code and comment typos. 11393 [Eric A. Young] 11394 11395 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 11396 bytes sent in the client random. 11397 [Edward Bishop <ebishop@spyglass.com>] 11398 11399