1 /** 2 * \file config.h 3 * 4 * \brief Configuration options (set of defines) 5 * 6 * This set of compile-time options may be used to enable 7 * or disable features selectively, and reduce the global 8 * memory footprint. 9 */ 10 /* 11 * Copyright The Mbed TLS Contributors 12 * SPDX-License-Identifier: Apache-2.0 13 * 14 * Licensed under the Apache License, Version 2.0 (the "License"); you may 15 * not use this file except in compliance with the License. 16 * You may obtain a copy of the License at 17 * 18 * http://www.apache.org/licenses/LICENSE-2.0 19 * 20 * Unless required by applicable law or agreed to in writing, software 21 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 22 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 23 * See the License for the specific language governing permissions and 24 * limitations under the License. 25 */ 26 27 #ifndef MBEDTLS_CONFIG_H 28 #define MBEDTLS_CONFIG_H 29 30 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE) 31 #define _CRT_SECURE_NO_DEPRECATE 1 32 #endif 33 34 /** 35 * \name SECTION: System support 36 * 37 * This section sets system specific settings. 38 * \{ 39 */ 40 41 /** 42 * \def MBEDTLS_HAVE_ASM 43 * 44 * The compiler has support for asm(). 45 * 46 * Requires support for asm() in compiler. 47 * 48 * Used in: 49 * library/aria.c 50 * library/timing.c 51 * include/mbedtls/bn_mul.h 52 * 53 * Required by: 54 * MBEDTLS_AESNI_C 55 * MBEDTLS_PADLOCK_C 56 * 57 * Comment to disable the use of assembly code. 58 */ 59 #define MBEDTLS_HAVE_ASM 60 61 /** 62 * \def MBEDTLS_NO_UDBL_DIVISION 63 * 64 * The platform lacks support for double-width integer division (64-bit 65 * division on a 32-bit platform, 128-bit division on a 64-bit platform). 66 * 67 * Used in: 68 * include/mbedtls/bignum.h 69 * library/bignum.c 70 * 71 * The bignum code uses double-width division to speed up some operations. 72 * Double-width division is often implemented in software that needs to 73 * be linked with the program. The presence of a double-width integer 74 * type is usually detected automatically through preprocessor macros, 75 * but the automatic detection cannot know whether the code needs to 76 * and can be linked with an implementation of division for that type. 77 * By default division is assumed to be usable if the type is present. 78 * Uncomment this option to prevent the use of double-width division. 79 * 80 * Note that division for the native integer type is always required. 81 * Furthermore, a 64-bit type is always required even on a 32-bit 82 * platform, but it need not support multiplication or division. In some 83 * cases it is also desirable to disable some double-width operations. For 84 * example, if double-width division is implemented in software, disabling 85 * it can reduce code size in some embedded targets. 86 */ 87 //#define MBEDTLS_NO_UDBL_DIVISION 88 89 /** 90 * \def MBEDTLS_NO_64BIT_MULTIPLICATION 91 * 92 * The platform lacks support for 32x32 -> 64-bit multiplication. 93 * 94 * Used in: 95 * library/poly1305.c 96 * 97 * Some parts of the library may use multiplication of two unsigned 32-bit 98 * operands with a 64-bit result in order to speed up computations. On some 99 * platforms, this is not available in hardware and has to be implemented in 100 * software, usually in a library provided by the toolchain. 101 * 102 * Sometimes it is not desirable to have to link to that library. This option 103 * removes the dependency of that library on platforms that lack a hardware 104 * 64-bit multiplier by embedding a software implementation in Mbed TLS. 105 * 106 * Note that depending on the compiler, this may decrease performance compared 107 * to using the library function provided by the toolchain. 108 */ 109 //#define MBEDTLS_NO_64BIT_MULTIPLICATION 110 111 /** 112 * \def MBEDTLS_HAVE_SSE2 113 * 114 * CPU supports SSE2 instruction set. 115 * 116 * Uncomment if the CPU supports SSE2 (IA-32 specific). 117 */ 118 //#define MBEDTLS_HAVE_SSE2 119 120 /** 121 * \def MBEDTLS_HAVE_TIME 122 * 123 * System has time.h and time(). 124 * The time does not need to be correct, only time differences are used, 125 * by contrast with MBEDTLS_HAVE_TIME_DATE 126 * 127 * Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT, 128 * MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and 129 * MBEDTLS_PLATFORM_STD_TIME. 130 * 131 * Comment if your system does not support time functions 132 */ 133 #define MBEDTLS_HAVE_TIME 134 135 /** 136 * \def MBEDTLS_HAVE_TIME_DATE 137 * 138 * System has time.h, time(), and an implementation for 139 * mbedtls_platform_gmtime_r() (see below). 140 * The time needs to be correct (not necessarily very accurate, but at least 141 * the date should be correct). This is used to verify the validity period of 142 * X.509 certificates. 143 * 144 * Comment if your system does not have a correct clock. 145 * 146 * \note mbedtls_platform_gmtime_r() is an abstraction in platform_util.h that 147 * behaves similarly to the gmtime_r() function from the C standard. Refer to 148 * the documentation for mbedtls_platform_gmtime_r() for more information. 149 * 150 * \note It is possible to configure an implementation for 151 * mbedtls_platform_gmtime_r() at compile-time by using the macro 152 * MBEDTLS_PLATFORM_GMTIME_R_ALT. 153 */ 154 #define MBEDTLS_HAVE_TIME_DATE 155 156 /** 157 * \def MBEDTLS_PLATFORM_MEMORY 158 * 159 * Enable the memory allocation layer. 160 * 161 * By default mbed TLS uses the system-provided calloc() and free(). 162 * This allows different allocators (self-implemented or provided) to be 163 * provided to the platform abstraction layer. 164 * 165 * Enabling MBEDTLS_PLATFORM_MEMORY without the 166 * MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide 167 * "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and 168 * free() function pointer at runtime. 169 * 170 * Enabling MBEDTLS_PLATFORM_MEMORY and specifying 171 * MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the 172 * alternate function at compile time. 173 * 174 * Requires: MBEDTLS_PLATFORM_C 175 * 176 * Enable this layer to allow use of alternative memory allocators. 177 */ 178 //#define MBEDTLS_PLATFORM_MEMORY 179 180 /** 181 * \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS 182 * 183 * Do not assign standard functions in the platform layer (e.g. calloc() to 184 * MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF) 185 * 186 * This makes sure there are no linking errors on platforms that do not support 187 * these functions. You will HAVE to provide alternatives, either at runtime 188 * via the platform_set_xxx() functions or at compile time by setting 189 * the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a 190 * MBEDTLS_PLATFORM_XXX_MACRO. 191 * 192 * Requires: MBEDTLS_PLATFORM_C 193 * 194 * Uncomment to prevent default assignment of standard functions in the 195 * platform layer. 196 */ 197 //#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS 198 199 /** 200 * \def MBEDTLS_PLATFORM_EXIT_ALT 201 * 202 * MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let mbed TLS support the 203 * function in the platform abstraction layer. 204 * 205 * Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, mbed TLS will 206 * provide a function "mbedtls_platform_set_printf()" that allows you to set an 207 * alternative printf function pointer. 208 * 209 * All these define require MBEDTLS_PLATFORM_C to be defined! 210 * 211 * \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows; 212 * it will be enabled automatically by check_config.h 213 * 214 * \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as 215 * MBEDTLS_PLATFORM_XXX_MACRO! 216 * 217 * Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME 218 * 219 * Uncomment a macro to enable alternate implementation of specific base 220 * platform function 221 */ 222 //#define MBEDTLS_PLATFORM_EXIT_ALT 223 //#define MBEDTLS_PLATFORM_TIME_ALT 224 //#define MBEDTLS_PLATFORM_FPRINTF_ALT 225 //#define MBEDTLS_PLATFORM_PRINTF_ALT 226 //#define MBEDTLS_PLATFORM_SNPRINTF_ALT 227 //#define MBEDTLS_PLATFORM_VSNPRINTF_ALT 228 //#define MBEDTLS_PLATFORM_NV_SEED_ALT 229 //#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT 230 231 /** 232 * \def MBEDTLS_DEPRECATED_WARNING 233 * 234 * Mark deprecated functions and features so that they generate a warning if 235 * used. Functionality deprecated in one version will usually be removed in the 236 * next version. You can enable this to help you prepare the transition to a 237 * new major version by making sure your code is not using this functionality. 238 * 239 * This only works with GCC and Clang. With other compilers, you may want to 240 * use MBEDTLS_DEPRECATED_REMOVED 241 * 242 * Uncomment to get warnings on using deprecated functions and features. 243 */ 244 //#define MBEDTLS_DEPRECATED_WARNING 245 246 /** 247 * \def MBEDTLS_DEPRECATED_REMOVED 248 * 249 * Remove deprecated functions and features so that they generate an error if 250 * used. Functionality deprecated in one version will usually be removed in the 251 * next version. You can enable this to help you prepare the transition to a 252 * new major version by making sure your code is not using this functionality. 253 * 254 * Uncomment to get errors on using deprecated functions and features. 255 */ 256 //#define MBEDTLS_DEPRECATED_REMOVED 257 258 /** 259 * \def MBEDTLS_CHECK_PARAMS 260 * 261 * This configuration option controls whether the library validates more of 262 * the parameters passed to it. 263 * 264 * When this flag is not defined, the library only attempts to validate an 265 * input parameter if: (1) they may come from the outside world (such as the 266 * network, the filesystem, etc.) or (2) not validating them could result in 267 * internal memory errors such as overflowing a buffer controlled by the 268 * library. On the other hand, it doesn't attempt to validate parameters whose 269 * values are fully controlled by the application (such as pointers). 270 * 271 * When this flag is defined, the library additionally attempts to validate 272 * parameters that are fully controlled by the application, and should always 273 * be valid if the application code is fully correct and trusted. 274 * 275 * For example, when a function accepts as input a pointer to a buffer that may 276 * contain untrusted data, and its documentation mentions that this pointer 277 * must not be NULL: 278 * - The pointer is checked to be non-NULL only if this option is enabled. 279 * - The content of the buffer is always validated. 280 * 281 * When this flag is defined, if a library function receives a parameter that 282 * is invalid: 283 * 1. The function will invoke the macro MBEDTLS_PARAM_FAILED(). 284 * 2. If MBEDTLS_PARAM_FAILED() did not terminate the program, the function 285 * will immediately return. If the function returns an Mbed TLS error code, 286 * the error code in this case is MBEDTLS_ERR_xxx_BAD_INPUT_DATA. 287 * 288 * When defining this flag, you also need to arrange a definition for 289 * MBEDTLS_PARAM_FAILED(). You can do this by any of the following methods: 290 * - By default, the library defines MBEDTLS_PARAM_FAILED() to call a 291 * function mbedtls_param_failed(), but the library does not define this 292 * function. If you do not make any other arrangements, you must provide 293 * the function mbedtls_param_failed() in your application. 294 * See `platform_util.h` for its prototype. 295 * - If you enable the macro #MBEDTLS_CHECK_PARAMS_ASSERT, then the 296 * library defines MBEDTLS_PARAM_FAILED(\c cond) to be `assert(cond)`. 297 * You can still supply an alternative definition of 298 * MBEDTLS_PARAM_FAILED(), which may call `assert`. 299 * - If you define a macro MBEDTLS_PARAM_FAILED() before including `config.h` 300 * or you uncomment the definition of MBEDTLS_PARAM_FAILED() in `config.h`, 301 * the library will call the macro that you defined and will not supply 302 * its own version. Note that if MBEDTLS_PARAM_FAILED() calls `assert`, 303 * you need to enable #MBEDTLS_CHECK_PARAMS_ASSERT so that library source 304 * files include `<assert.h>`. 305 * 306 * Uncomment to enable validation of application-controlled parameters. 307 */ 308 //#define MBEDTLS_CHECK_PARAMS 309 310 /** 311 * \def MBEDTLS_CHECK_PARAMS_ASSERT 312 * 313 * Allow MBEDTLS_PARAM_FAILED() to call `assert`, and make it default to 314 * `assert`. This macro is only used if #MBEDTLS_CHECK_PARAMS is defined. 315 * 316 * If this macro is not defined, then MBEDTLS_PARAM_FAILED() defaults to 317 * calling a function mbedtls_param_failed(). See the documentation of 318 * #MBEDTLS_CHECK_PARAMS for details. 319 * 320 * Uncomment to allow MBEDTLS_PARAM_FAILED() to call `assert`. 321 */ 322 //#define MBEDTLS_CHECK_PARAMS_ASSERT 323 324 /* \} name SECTION: System support */ 325 326 /** 327 * \name SECTION: mbed TLS feature support 328 * 329 * This section sets support for features that are or are not needed 330 * within the modules that are enabled. 331 * \{ 332 */ 333 334 /** 335 * \def MBEDTLS_TIMING_ALT 336 * 337 * Uncomment to provide your own alternate implementation for mbedtls_timing_hardclock(), 338 * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay() 339 * 340 * Only works if you have MBEDTLS_TIMING_C enabled. 341 * 342 * You will need to provide a header "timing_alt.h" and an implementation at 343 * compile time. 344 */ 345 //#define MBEDTLS_TIMING_ALT 346 347 /** 348 * \def MBEDTLS_AES_ALT 349 * 350 * MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let mbed TLS use your 351 * alternate core implementation of a symmetric crypto, an arithmetic or hash 352 * module (e.g. platform specific assembly optimized implementations). Keep 353 * in mind that the function prototypes should remain the same. 354 * 355 * This replaces the whole module. If you only want to replace one of the 356 * functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags. 357 * 358 * Example: In case you uncomment MBEDTLS_AES_ALT, mbed TLS will no longer 359 * provide the "struct mbedtls_aes_context" definition and omit the base 360 * function declarations and implementations. "aes_alt.h" will be included from 361 * "aes.h" to include the new function definitions. 362 * 363 * Uncomment a macro to enable alternate implementation of the corresponding 364 * module. 365 * 366 * \warning MD2, MD4, MD5, ARC4, DES and SHA-1 are considered weak and their 367 * use constitutes a security risk. If possible, we recommend 368 * avoiding dependencies on them, and considering stronger message 369 * digests and ciphers instead. 370 * 371 */ 372 //#define MBEDTLS_AES_ALT 373 //#define MBEDTLS_ARC4_ALT 374 //#define MBEDTLS_ARIA_ALT 375 //#define MBEDTLS_BLOWFISH_ALT 376 //#define MBEDTLS_CAMELLIA_ALT 377 //#define MBEDTLS_CCM_ALT 378 //#define MBEDTLS_CHACHA20_ALT 379 //#define MBEDTLS_CHACHAPOLY_ALT 380 //#define MBEDTLS_CMAC_ALT 381 //#define MBEDTLS_DES_ALT 382 //#define MBEDTLS_DHM_ALT 383 //#define MBEDTLS_ECJPAKE_ALT 384 //#define MBEDTLS_GCM_ALT 385 //#define MBEDTLS_NIST_KW_ALT 386 //#define MBEDTLS_MD2_ALT 387 //#define MBEDTLS_MD4_ALT 388 //#define MBEDTLS_MD5_ALT 389 //#define MBEDTLS_POLY1305_ALT 390 //#define MBEDTLS_RIPEMD160_ALT 391 //#define MBEDTLS_RSA_ALT 392 //#define MBEDTLS_SHA1_ALT 393 //#define MBEDTLS_SHA256_ALT 394 //#define MBEDTLS_SHA512_ALT 395 //#define MBEDTLS_XTEA_ALT 396 397 /* 398 * When replacing the elliptic curve module, pleace consider, that it is 399 * implemented with two .c files: 400 * - ecp.c 401 * - ecp_curves.c 402 * You can replace them very much like all the other MBEDTLS__MODULE_NAME__ALT 403 * macros as described above. The only difference is that you have to make sure 404 * that you provide functionality for both .c files. 405 */ 406 //#define MBEDTLS_ECP_ALT 407 408 /** 409 * \def MBEDTLS_MD2_PROCESS_ALT 410 * 411 * MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use you 412 * alternate core implementation of symmetric crypto or hash function. Keep in 413 * mind that function prototypes should remain the same. 414 * 415 * This replaces only one function. The header file from mbed TLS is still 416 * used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags. 417 * 418 * Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, mbed TLS will 419 * no longer provide the mbedtls_sha1_process() function, but it will still provide 420 * the other function (using your mbedtls_sha1_process() function) and the definition 421 * of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible 422 * with this definition. 423 * 424 * \note Because of a signature change, the core AES encryption and decryption routines are 425 * currently named mbedtls_aes_internal_encrypt and mbedtls_aes_internal_decrypt, 426 * respectively. When setting up alternative implementations, these functions should 427 * be overridden, but the wrapper functions mbedtls_aes_decrypt and mbedtls_aes_encrypt 428 * must stay untouched. 429 * 430 * \note If you use the AES_xxx_ALT macros, then is is recommended to also set 431 * MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES 432 * tables. 433 * 434 * Uncomment a macro to enable alternate implementation of the corresponding 435 * function. 436 * 437 * \warning MD2, MD4, MD5, DES and SHA-1 are considered weak and their use 438 * constitutes a security risk. If possible, we recommend avoiding 439 * dependencies on them, and considering stronger message digests 440 * and ciphers instead. 441 * 442 * \warning If both MBEDTLS_ECDSA_SIGN_ALT and MBEDTLS_ECDSA_DETERMINISTIC are 443 * enabled, then the deterministic ECDH signature functions pass the 444 * the static HMAC-DRBG as RNG to mbedtls_ecdsa_sign(). Therefore 445 * alternative implementations should use the RNG only for generating 446 * the ephemeral key and nothing else. If this is not possible, then 447 * MBEDTLS_ECDSA_DETERMINISTIC should be disabled and an alternative 448 * implementation should be provided for mbedtls_ecdsa_sign_det_ext() 449 * (and for mbedtls_ecdsa_sign_det() too if backward compatibility is 450 * desirable). 451 * 452 */ 453 //#define MBEDTLS_MD2_PROCESS_ALT 454 //#define MBEDTLS_MD4_PROCESS_ALT 455 //#define MBEDTLS_MD5_PROCESS_ALT 456 //#define MBEDTLS_RIPEMD160_PROCESS_ALT 457 //#define MBEDTLS_SHA1_PROCESS_ALT 458 //#define MBEDTLS_SHA256_PROCESS_ALT 459 //#define MBEDTLS_SHA512_PROCESS_ALT 460 //#define MBEDTLS_DES_SETKEY_ALT 461 //#define MBEDTLS_DES_CRYPT_ECB_ALT 462 //#define MBEDTLS_DES3_CRYPT_ECB_ALT 463 //#define MBEDTLS_AES_SETKEY_ENC_ALT 464 //#define MBEDTLS_AES_SETKEY_DEC_ALT 465 //#define MBEDTLS_AES_ENCRYPT_ALT 466 //#define MBEDTLS_AES_DECRYPT_ALT 467 //#define MBEDTLS_ECDH_GEN_PUBLIC_ALT 468 //#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT 469 //#define MBEDTLS_ECDSA_VERIFY_ALT 470 //#define MBEDTLS_ECDSA_SIGN_ALT 471 //#define MBEDTLS_ECDSA_GENKEY_ALT 472 473 /** 474 * \def MBEDTLS_ECP_INTERNAL_ALT 475 * 476 * Expose a part of the internal interface of the Elliptic Curve Point module. 477 * 478 * MBEDTLS_ECP__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use your 479 * alternative core implementation of elliptic curve arithmetic. Keep in mind 480 * that function prototypes should remain the same. 481 * 482 * This partially replaces one function. The header file from mbed TLS is still 483 * used, in contrast to the MBEDTLS_ECP_ALT flag. The original implementation 484 * is still present and it is used for group structures not supported by the 485 * alternative. 486 * 487 * Any of these options become available by defining MBEDTLS_ECP_INTERNAL_ALT 488 * and implementing the following functions: 489 * unsigned char mbedtls_internal_ecp_grp_capable( 490 * const mbedtls_ecp_group *grp ) 491 * int mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp ) 492 * void mbedtls_internal_ecp_free( const mbedtls_ecp_group *grp ) 493 * The mbedtls_internal_ecp_grp_capable function should return 1 if the 494 * replacement functions implement arithmetic for the given group and 0 495 * otherwise. 496 * The functions mbedtls_internal_ecp_init and mbedtls_internal_ecp_free are 497 * called before and after each point operation and provide an opportunity to 498 * implement optimized set up and tear down instructions. 499 * 500 * Example: In case you uncomment MBEDTLS_ECP_INTERNAL_ALT and 501 * MBEDTLS_ECP_DOUBLE_JAC_ALT, mbed TLS will still provide the ecp_double_jac 502 * function, but will use your mbedtls_internal_ecp_double_jac if the group is 503 * supported (your mbedtls_internal_ecp_grp_capable function returns 1 when 504 * receives it as an argument). If the group is not supported then the original 505 * implementation is used. The other functions and the definition of 506 * mbedtls_ecp_group and mbedtls_ecp_point will not change, so your 507 * implementation of mbedtls_internal_ecp_double_jac and 508 * mbedtls_internal_ecp_grp_capable must be compatible with this definition. 509 * 510 * Uncomment a macro to enable alternate implementation of the corresponding 511 * function. 512 */ 513 /* Required for all the functions in this section */ 514 //#define MBEDTLS_ECP_INTERNAL_ALT 515 /* Support for Weierstrass curves with Jacobi representation */ 516 //#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT 517 //#define MBEDTLS_ECP_ADD_MIXED_ALT 518 //#define MBEDTLS_ECP_DOUBLE_JAC_ALT 519 //#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT 520 //#define MBEDTLS_ECP_NORMALIZE_JAC_ALT 521 /* Support for curves with Montgomery arithmetic */ 522 //#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT 523 //#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT 524 //#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT 525 526 /** 527 * \def MBEDTLS_TEST_NULL_ENTROPY 528 * 529 * Enables testing and use of mbed TLS without any configured entropy sources. 530 * This permits use of the library on platforms before an entropy source has 531 * been integrated (see for example the MBEDTLS_ENTROPY_HARDWARE_ALT or the 532 * MBEDTLS_ENTROPY_NV_SEED switches). 533 * 534 * WARNING! This switch MUST be disabled in production builds, and is suitable 535 * only for development. 536 * Enabling the switch negates any security provided by the library. 537 * 538 * Requires MBEDTLS_ENTROPY_C, MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES 539 * 540 */ 541 //#define MBEDTLS_TEST_NULL_ENTROPY 542 543 /** 544 * \def MBEDTLS_ENTROPY_HARDWARE_ALT 545 * 546 * Uncomment this macro to let mbed TLS use your own implementation of a 547 * hardware entropy collector. 548 * 549 * Your function must be called \c mbedtls_hardware_poll(), have the same 550 * prototype as declared in entropy_poll.h, and accept NULL as first argument. 551 * 552 * Uncomment to use your own hardware entropy collector. 553 */ 554 //#define MBEDTLS_ENTROPY_HARDWARE_ALT 555 556 /** 557 * \def MBEDTLS_AES_ROM_TABLES 558 * 559 * Use precomputed AES tables stored in ROM. 560 * 561 * Uncomment this macro to use precomputed AES tables stored in ROM. 562 * Comment this macro to generate AES tables in RAM at runtime. 563 * 564 * Tradeoff: Using precomputed ROM tables reduces RAM usage by ~8kb 565 * (or ~2kb if \c MBEDTLS_AES_FEWER_TABLES is used) and reduces the 566 * initialization time before the first AES operation can be performed. 567 * It comes at the cost of additional ~8kb ROM use (resp. ~2kb if \c 568 * MBEDTLS_AES_FEWER_TABLES below is used), and potentially degraded 569 * performance if ROM access is slower than RAM access. 570 * 571 * This option is independent of \c MBEDTLS_AES_FEWER_TABLES. 572 * 573 */ 574 //#define MBEDTLS_AES_ROM_TABLES 575 576 /** 577 * \def MBEDTLS_AES_FEWER_TABLES 578 * 579 * Use less ROM/RAM for AES tables. 580 * 581 * Uncommenting this macro omits 75% of the AES tables from 582 * ROM / RAM (depending on the value of \c MBEDTLS_AES_ROM_TABLES) 583 * by computing their values on the fly during operations 584 * (the tables are entry-wise rotations of one another). 585 * 586 * Tradeoff: Uncommenting this reduces the RAM / ROM footprint 587 * by ~6kb but at the cost of more arithmetic operations during 588 * runtime. Specifically, one has to compare 4 accesses within 589 * different tables to 4 accesses with additional arithmetic 590 * operations within the same table. The performance gain/loss 591 * depends on the system and memory details. 592 * 593 * This option is independent of \c MBEDTLS_AES_ROM_TABLES. 594 * 595 */ 596 //#define MBEDTLS_AES_FEWER_TABLES 597 598 /** 599 * \def MBEDTLS_CAMELLIA_SMALL_MEMORY 600 * 601 * Use less ROM for the Camellia implementation (saves about 768 bytes). 602 * 603 * Uncomment this macro to use less memory for Camellia. 604 */ 605 //#define MBEDTLS_CAMELLIA_SMALL_MEMORY 606 607 /** 608 * \def MBEDTLS_CIPHER_MODE_CBC 609 * 610 * Enable Cipher Block Chaining mode (CBC) for symmetric ciphers. 611 */ 612 #define MBEDTLS_CIPHER_MODE_CBC 613 614 /** 615 * \def MBEDTLS_CIPHER_MODE_CFB 616 * 617 * Enable Cipher Feedback mode (CFB) for symmetric ciphers. 618 */ 619 #define MBEDTLS_CIPHER_MODE_CFB 620 621 /** 622 * \def MBEDTLS_CIPHER_MODE_CTR 623 * 624 * Enable Counter Block Cipher mode (CTR) for symmetric ciphers. 625 */ 626 #define MBEDTLS_CIPHER_MODE_CTR 627 628 /** 629 * \def MBEDTLS_CIPHER_MODE_OFB 630 * 631 * Enable Output Feedback mode (OFB) for symmetric ciphers. 632 */ 633 #define MBEDTLS_CIPHER_MODE_OFB 634 635 /** 636 * \def MBEDTLS_CIPHER_MODE_XTS 637 * 638 * Enable Xor-encrypt-xor with ciphertext stealing mode (XTS) for AES. 639 */ 640 #define MBEDTLS_CIPHER_MODE_XTS 641 642 /** 643 * \def MBEDTLS_CIPHER_NULL_CIPHER 644 * 645 * Enable NULL cipher. 646 * Warning: Only do so when you know what you are doing. This allows for 647 * encryption or channels without any security! 648 * 649 * Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable 650 * the following ciphersuites: 651 * MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA 652 * MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA 653 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA 654 * MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA 655 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 656 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 657 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA 658 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 659 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 660 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA 661 * MBEDTLS_TLS_RSA_WITH_NULL_SHA256 662 * MBEDTLS_TLS_RSA_WITH_NULL_SHA 663 * MBEDTLS_TLS_RSA_WITH_NULL_MD5 664 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 665 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 666 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA 667 * MBEDTLS_TLS_PSK_WITH_NULL_SHA384 668 * MBEDTLS_TLS_PSK_WITH_NULL_SHA256 669 * MBEDTLS_TLS_PSK_WITH_NULL_SHA 670 * 671 * Uncomment this macro to enable the NULL cipher and ciphersuites 672 */ 673 //#define MBEDTLS_CIPHER_NULL_CIPHER 674 675 /** 676 * \def MBEDTLS_CIPHER_PADDING_PKCS7 677 * 678 * MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for 679 * specific padding modes in the cipher layer with cipher modes that support 680 * padding (e.g. CBC) 681 * 682 * If you disable all padding modes, only full blocks can be used with CBC. 683 * 684 * Enable padding modes in the cipher layer. 685 */ 686 #define MBEDTLS_CIPHER_PADDING_PKCS7 687 #define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS 688 #define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN 689 #define MBEDTLS_CIPHER_PADDING_ZEROS 690 691 /** \def MBEDTLS_CTR_DRBG_USE_128_BIT_KEY 692 * 693 * Uncomment this macro to use a 128-bit key in the CTR_DRBG module. 694 * By default, CTR_DRBG uses a 256-bit key. 695 */ 696 //#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY 697 698 /** 699 * \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES 700 * 701 * Enable weak ciphersuites in SSL / TLS. 702 * Warning: Only do so when you know what you are doing. This allows for 703 * channels with virtually no security at all! 704 * 705 * This enables the following ciphersuites: 706 * MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA 707 * MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA 708 * 709 * Uncomment this macro to enable weak ciphersuites 710 * 711 * \warning DES is considered a weak cipher and its use constitutes a 712 * security risk. We recommend considering stronger ciphers instead. 713 */ 714 //#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES 715 716 /** 717 * \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES 718 * 719 * Remove RC4 ciphersuites by default in SSL / TLS. 720 * This flag removes the ciphersuites based on RC4 from the default list as 721 * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to 722 * enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them 723 * explicitly. 724 * 725 * Uncomment this macro to remove RC4 ciphersuites by default. 726 */ 727 #define MBEDTLS_REMOVE_ARC4_CIPHERSUITES 728 729 /** 730 * \def MBEDTLS_REMOVE_3DES_CIPHERSUITES 731 * 732 * Remove 3DES ciphersuites by default in SSL / TLS. 733 * This flag removes the ciphersuites based on 3DES from the default list as 734 * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible 735 * to enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including 736 * them explicitly. 737 * 738 * A man-in-the-browser attacker can recover authentication tokens sent through 739 * a TLS connection using a 3DES based cipher suite (see "On the Practical 740 * (In-)Security of 64-bit Block Ciphers" by Karthikeyan Bhargavan and Gaëtan 741 * Leurent, see https://sweet32.info/SWEET32_CCS16.pdf). If this attack falls 742 * in your threat model or you are unsure, then you should keep this option 743 * enabled to remove 3DES based cipher suites. 744 * 745 * Comment this macro to keep 3DES in the default ciphersuite list. 746 */ 747 #define MBEDTLS_REMOVE_3DES_CIPHERSUITES 748 749 /** 750 * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED 751 * 752 * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve 753 * module. By default all supported curves are enabled. 754 * 755 * Comment macros to disable the curve and functions for it 756 */ 757 /* Short Weierstrass curves (supporting ECP, ECDH, ECDSA) */ 758 #define MBEDTLS_ECP_DP_SECP192R1_ENABLED 759 #define MBEDTLS_ECP_DP_SECP224R1_ENABLED 760 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED 761 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED 762 #define MBEDTLS_ECP_DP_SECP521R1_ENABLED 763 #define MBEDTLS_ECP_DP_SECP192K1_ENABLED 764 #define MBEDTLS_ECP_DP_SECP224K1_ENABLED 765 #define MBEDTLS_ECP_DP_SECP256K1_ENABLED 766 #define MBEDTLS_ECP_DP_BP256R1_ENABLED 767 #define MBEDTLS_ECP_DP_BP384R1_ENABLED 768 #define MBEDTLS_ECP_DP_BP512R1_ENABLED 769 /* Montgomery curves (supporting ECP) */ 770 #define MBEDTLS_ECP_DP_CURVE25519_ENABLED 771 #define MBEDTLS_ECP_DP_CURVE448_ENABLED 772 773 /** 774 * \def MBEDTLS_ECP_NIST_OPTIM 775 * 776 * Enable specific 'modulo p' routines for each NIST prime. 777 * Depending on the prime and architecture, makes operations 4 to 8 times 778 * faster on the corresponding curve. 779 * 780 * Comment this macro to disable NIST curves optimisation. 781 */ 782 #define MBEDTLS_ECP_NIST_OPTIM 783 784 /** 785 * \def MBEDTLS_ECP_NO_INTERNAL_RNG 786 * 787 * When this option is disabled, mbedtls_ecp_mul() will make use of an 788 * internal RNG when called with a NULL \c f_rng argument, in order to protect 789 * against some side-channel attacks. 790 * 791 * This protection introduces a dependency of the ECP module on one of the 792 * DRBG modules. For very constrained implementations that don't require this 793 * protection (for example, because you're only doing signature verification, 794 * so not manipulating any secret, or because local/physical side-channel 795 * attacks are outside your threat model), it might be desirable to get rid of 796 * that dependency. 797 * 798 * \warning Enabling this option makes some uses of ECP vulnerable to some 799 * side-channel attacks. Only enable it if you know that's not a problem for 800 * your use case. 801 * 802 * Uncomment this macro to disable some counter-measures in ECP. 803 */ 804 //#define MBEDTLS_ECP_NO_INTERNAL_RNG 805 806 /** 807 * \def MBEDTLS_ECP_RESTARTABLE 808 * 809 * Enable "non-blocking" ECC operations that can return early and be resumed. 810 * 811 * This allows various functions to pause by returning 812 * #MBEDTLS_ERR_ECP_IN_PROGRESS (or, for functions in the SSL module, 813 * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) and then be called later again in 814 * order to further progress and eventually complete their operation. This is 815 * controlled through mbedtls_ecp_set_max_ops() which limits the maximum 816 * number of ECC operations a function may perform before pausing; see 817 * mbedtls_ecp_set_max_ops() for more information. 818 * 819 * This is useful in non-threaded environments if you want to avoid blocking 820 * for too long on ECC (and, hence, X.509 or SSL/TLS) operations. 821 * 822 * Uncomment this macro to enable restartable ECC computations. 823 * 824 * \note This option only works with the default software implementation of 825 * elliptic curve functionality. It is incompatible with 826 * MBEDTLS_ECP_ALT, MBEDTLS_ECDH_XXX_ALT, MBEDTLS_ECDSA_XXX_ALT 827 * and MBEDTLS_ECDH_LEGACY_CONTEXT. 828 */ 829 //#define MBEDTLS_ECP_RESTARTABLE 830 831 /** 832 * \def MBEDTLS_ECDH_LEGACY_CONTEXT 833 * 834 * Use a backward compatible ECDH context. 835 * 836 * Mbed TLS supports two formats for ECDH contexts (#mbedtls_ecdh_context 837 * defined in `ecdh.h`). For most applications, the choice of format makes 838 * no difference, since all library functions can work with either format, 839 * except that the new format is incompatible with MBEDTLS_ECP_RESTARTABLE. 840 841 * The new format used when this option is disabled is smaller 842 * (56 bytes on a 32-bit platform). In future versions of the library, it 843 * will support alternative implementations of ECDH operations. 844 * The new format is incompatible with applications that access 845 * context fields directly and with restartable ECP operations. 846 * 847 * Define this macro if you enable MBEDTLS_ECP_RESTARTABLE or if you 848 * want to access ECDH context fields directly. Otherwise you should 849 * comment out this macro definition. 850 * 851 * This option has no effect if #MBEDTLS_ECDH_C is not enabled. 852 * 853 * \note This configuration option is experimental. Future versions of the 854 * library may modify the way the ECDH context layout is configured 855 * and may modify the layout of the new context type. 856 */ 857 #define MBEDTLS_ECDH_LEGACY_CONTEXT 858 859 /** 860 * \def MBEDTLS_ECDSA_DETERMINISTIC 861 * 862 * Enable deterministic ECDSA (RFC 6979). 863 * Standard ECDSA is "fragile" in the sense that lack of entropy when signing 864 * may result in a compromise of the long-term signing key. This is avoided by 865 * the deterministic variant. 866 * 867 * Requires: MBEDTLS_HMAC_DRBG_C, MBEDTLS_ECDSA_C 868 * 869 * Comment this macro to disable deterministic ECDSA. 870 */ 871 #define MBEDTLS_ECDSA_DETERMINISTIC 872 873 /** 874 * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED 875 * 876 * Enable the PSK based ciphersuite modes in SSL / TLS. 877 * 878 * This enables the following ciphersuites (if other requisites are 879 * enabled as well): 880 * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 881 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 882 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 883 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 884 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 885 * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 886 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 887 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 888 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 889 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 890 * MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA 891 * MBEDTLS_TLS_PSK_WITH_RC4_128_SHA 892 */ 893 #define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED 894 895 /** 896 * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED 897 * 898 * Enable the DHE-PSK based ciphersuite modes in SSL / TLS. 899 * 900 * Requires: MBEDTLS_DHM_C 901 * 902 * This enables the following ciphersuites (if other requisites are 903 * enabled as well): 904 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 905 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 906 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 907 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 908 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 909 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 910 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 911 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 912 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 913 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 914 * MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA 915 * MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA 916 * 917 * \warning Using DHE constitutes a security risk as it 918 * is not possible to validate custom DH parameters. 919 * If possible, it is recommended users should consider 920 * preferring other methods of key exchange. 921 * See dhm.h for more details. 922 * 923 */ 924 #define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED 925 926 /** 927 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED 928 * 929 * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS. 930 * 931 * Requires: MBEDTLS_ECDH_C 932 * 933 * This enables the following ciphersuites (if other requisites are 934 * enabled as well): 935 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 936 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 937 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 938 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 939 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 940 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 941 * MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA 942 * MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA 943 */ 944 #define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED 945 946 /** 947 * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED 948 * 949 * Enable the RSA-PSK based ciphersuite modes in SSL / TLS. 950 * 951 * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 952 * MBEDTLS_X509_CRT_PARSE_C 953 * 954 * This enables the following ciphersuites (if other requisites are 955 * enabled as well): 956 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 957 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 958 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 959 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 960 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 961 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 962 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 963 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 964 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 965 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 966 * MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA 967 * MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA 968 */ 969 #define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED 970 971 /** 972 * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED 973 * 974 * Enable the RSA-only based ciphersuite modes in SSL / TLS. 975 * 976 * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 977 * MBEDTLS_X509_CRT_PARSE_C 978 * 979 * This enables the following ciphersuites (if other requisites are 980 * enabled as well): 981 * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 982 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 983 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 984 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 985 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 986 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 987 * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 988 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 989 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 990 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 991 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 992 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 993 * MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA 994 * MBEDTLS_TLS_RSA_WITH_RC4_128_SHA 995 * MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 996 */ 997 #define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED 998 999 /** 1000 * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED 1001 * 1002 * Enable the DHE-RSA based ciphersuite modes in SSL / TLS. 1003 * 1004 * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 1005 * MBEDTLS_X509_CRT_PARSE_C 1006 * 1007 * This enables the following ciphersuites (if other requisites are 1008 * enabled as well): 1009 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 1010 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 1011 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 1012 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 1013 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 1014 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 1015 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 1016 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 1017 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 1018 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 1019 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 1020 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 1021 * MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 1022 * 1023 * \warning Using DHE constitutes a security risk as it 1024 * is not possible to validate custom DH parameters. 1025 * If possible, it is recommended users should consider 1026 * preferring other methods of key exchange. 1027 * See dhm.h for more details. 1028 * 1029 */ 1030 #define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED 1031 1032 /** 1033 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED 1034 * 1035 * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS. 1036 * 1037 * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 1038 * MBEDTLS_X509_CRT_PARSE_C 1039 * 1040 * This enables the following ciphersuites (if other requisites are 1041 * enabled as well): 1042 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 1043 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 1044 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 1045 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 1046 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 1047 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 1048 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 1049 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 1050 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 1051 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 1052 * MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA 1053 * MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA 1054 */ 1055 #define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED 1056 1057 /** 1058 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED 1059 * 1060 * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS. 1061 * 1062 * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C, 1063 * 1064 * This enables the following ciphersuites (if other requisites are 1065 * enabled as well): 1066 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 1067 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 1068 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 1069 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 1070 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 1071 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 1072 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 1073 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 1074 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 1075 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 1076 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA 1077 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA 1078 */ 1079 #define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED 1080 1081 /** 1082 * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED 1083 * 1084 * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS. 1085 * 1086 * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C 1087 * 1088 * This enables the following ciphersuites (if other requisites are 1089 * enabled as well): 1090 * MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA 1091 * MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA 1092 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 1093 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 1094 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 1095 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 1096 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 1097 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 1098 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 1099 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 1100 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 1101 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 1102 */ 1103 #define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED 1104 1105 /** 1106 * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED 1107 * 1108 * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS. 1109 * 1110 * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_X509_CRT_PARSE_C 1111 * 1112 * This enables the following ciphersuites (if other requisites are 1113 * enabled as well): 1114 * MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA 1115 * MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA 1116 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 1117 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 1118 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 1119 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 1120 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 1121 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 1122 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 1123 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 1124 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 1125 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 1126 */ 1127 #define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED 1128 1129 /** 1130 * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED 1131 * 1132 * Enable the ECJPAKE based ciphersuite modes in SSL / TLS. 1133 * 1134 * \warning This is currently experimental. EC J-PAKE support is based on the 1135 * Thread v1.0.0 specification; incompatible changes to the specification 1136 * might still happen. For this reason, this is disabled by default. 1137 * 1138 * Requires: MBEDTLS_ECJPAKE_C 1139 * MBEDTLS_SHA256_C 1140 * MBEDTLS_ECP_DP_SECP256R1_ENABLED 1141 * 1142 * This enables the following ciphersuites (if other requisites are 1143 * enabled as well): 1144 * MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 1145 */ 1146 //#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED 1147 1148 /** 1149 * \def MBEDTLS_PK_PARSE_EC_EXTENDED 1150 * 1151 * Enhance support for reading EC keys using variants of SEC1 not allowed by 1152 * RFC 5915 and RFC 5480. 1153 * 1154 * Currently this means parsing the SpecifiedECDomain choice of EC 1155 * parameters (only known groups are supported, not arbitrary domains, to 1156 * avoid validation issues). 1157 * 1158 * Disable if you only need to support RFC 5915 + 5480 key formats. 1159 */ 1160 #define MBEDTLS_PK_PARSE_EC_EXTENDED 1161 1162 /** 1163 * \def MBEDTLS_ERROR_STRERROR_DUMMY 1164 * 1165 * Enable a dummy error function to make use of mbedtls_strerror() in 1166 * third party libraries easier when MBEDTLS_ERROR_C is disabled 1167 * (no effect when MBEDTLS_ERROR_C is enabled). 1168 * 1169 * You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're 1170 * not using mbedtls_strerror() or error_strerror() in your application. 1171 * 1172 * Disable if you run into name conflicts and want to really remove the 1173 * mbedtls_strerror() 1174 */ 1175 #define MBEDTLS_ERROR_STRERROR_DUMMY 1176 1177 /** 1178 * \def MBEDTLS_GENPRIME 1179 * 1180 * Enable the prime-number generation code. 1181 * 1182 * Requires: MBEDTLS_BIGNUM_C 1183 */ 1184 #define MBEDTLS_GENPRIME 1185 1186 /** 1187 * \def MBEDTLS_FS_IO 1188 * 1189 * Enable functions that use the filesystem. 1190 */ 1191 #define MBEDTLS_FS_IO 1192 1193 /** 1194 * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES 1195 * 1196 * Do not add default entropy sources. These are the platform specific, 1197 * mbedtls_timing_hardclock and HAVEGE based poll functions. 1198 * 1199 * This is useful to have more control over the added entropy sources in an 1200 * application. 1201 * 1202 * Uncomment this macro to prevent loading of default entropy functions. 1203 */ 1204 //#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES 1205 1206 /** 1207 * \def MBEDTLS_NO_PLATFORM_ENTROPY 1208 * 1209 * Do not use built-in platform entropy functions. 1210 * This is useful if your platform does not support 1211 * standards like the /dev/urandom or Windows CryptoAPI. 1212 * 1213 * Uncomment this macro to disable the built-in platform entropy functions. 1214 */ 1215 //#define MBEDTLS_NO_PLATFORM_ENTROPY 1216 1217 /** 1218 * \def MBEDTLS_ENTROPY_FORCE_SHA256 1219 * 1220 * Force the entropy accumulator to use a SHA-256 accumulator instead of the 1221 * default SHA-512 based one (if both are available). 1222 * 1223 * Requires: MBEDTLS_SHA256_C 1224 * 1225 * On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option 1226 * if you have performance concerns. 1227 * 1228 * This option is only useful if both MBEDTLS_SHA256_C and 1229 * MBEDTLS_SHA512_C are defined. Otherwise the available hash module is used. 1230 */ 1231 //#define MBEDTLS_ENTROPY_FORCE_SHA256 1232 1233 /** 1234 * \def MBEDTLS_ENTROPY_NV_SEED 1235 * 1236 * Enable the non-volatile (NV) seed file-based entropy source. 1237 * (Also enables the NV seed read/write functions in the platform layer) 1238 * 1239 * This is crucial (if not required) on systems that do not have a 1240 * cryptographic entropy source (in hardware or kernel) available. 1241 * 1242 * Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C 1243 * 1244 * \note The read/write functions that are used by the entropy source are 1245 * determined in the platform layer, and can be modified at runtime and/or 1246 * compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used. 1247 * 1248 * \note If you use the default implementation functions that read a seedfile 1249 * with regular fopen(), please make sure you make a seedfile with the 1250 * proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at 1251 * least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from 1252 * and written to or you will get an entropy source error! The default 1253 * implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE 1254 * bytes from the file. 1255 * 1256 * \note The entropy collector will write to the seed file before entropy is 1257 * given to an external source, to update it. 1258 */ 1259 //#define MBEDTLS_ENTROPY_NV_SEED 1260 1261 /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER 1262 * 1263 * Enable key identifiers that encode a key owner identifier. 1264 * 1265 * The owner of a key is identified by a value of type ::mbedtls_key_owner_id_t 1266 * which is currently hard-coded to be int32_t. 1267 * 1268 * Note that this option is meant for internal use only and may be removed 1269 * without notice. It is incompatible with MBEDTLS_USE_PSA_CRYPTO. 1270 */ 1271 //#define MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER 1272 1273 /** 1274 * \def MBEDTLS_MEMORY_DEBUG 1275 * 1276 * Enable debugging of buffer allocator memory issues. Automatically prints 1277 * (to stderr) all (fatal) messages on memory allocation issues. Enables 1278 * function for 'debug output' of allocated memory. 1279 * 1280 * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C 1281 * 1282 * Uncomment this macro to let the buffer allocator print out error messages. 1283 */ 1284 //#define MBEDTLS_MEMORY_DEBUG 1285 1286 /** 1287 * \def MBEDTLS_MEMORY_BACKTRACE 1288 * 1289 * Include backtrace information with each allocated block. 1290 * 1291 * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C 1292 * GLIBC-compatible backtrace() an backtrace_symbols() support 1293 * 1294 * Uncomment this macro to include backtrace information 1295 */ 1296 //#define MBEDTLS_MEMORY_BACKTRACE 1297 1298 /** 1299 * \def MBEDTLS_PK_RSA_ALT_SUPPORT 1300 * 1301 * Support external private RSA keys (eg from a HSM) in the PK layer. 1302 * 1303 * Comment this macro to disable support for external private RSA keys. 1304 */ 1305 #define MBEDTLS_PK_RSA_ALT_SUPPORT 1306 1307 /** 1308 * \def MBEDTLS_PKCS1_V15 1309 * 1310 * Enable support for PKCS#1 v1.5 encoding. 1311 * 1312 * Requires: MBEDTLS_RSA_C 1313 * 1314 * This enables support for PKCS#1 v1.5 operations. 1315 */ 1316 #define MBEDTLS_PKCS1_V15 1317 1318 /** 1319 * \def MBEDTLS_PKCS1_V21 1320 * 1321 * Enable support for PKCS#1 v2.1 encoding. 1322 * 1323 * Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C 1324 * 1325 * This enables support for RSAES-OAEP and RSASSA-PSS operations. 1326 */ 1327 #define MBEDTLS_PKCS1_V21 1328 1329 /** \def MBEDTLS_PSA_CRYPTO_DRIVERS 1330 * 1331 * Enable support for the experimental PSA crypto driver interface. 1332 * 1333 * Requires: MBEDTLS_PSA_CRYPTO_C 1334 * 1335 * \warning This interface is experimental and may change or be removed 1336 * without notice. 1337 */ 1338 //#define MBEDTLS_PSA_CRYPTO_DRIVERS 1339 1340 /** 1341 * \def MBEDTLS_PSA_CRYPTO_SPM 1342 * 1343 * When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is built for SPM (Secure 1344 * Partition Manager) integration which separates the code into two parts: a 1345 * NSPE (Non-Secure Process Environment) and an SPE (Secure Process 1346 * Environment). 1347 * 1348 * Module: library/psa_crypto.c 1349 * Requires: MBEDTLS_PSA_CRYPTO_C 1350 * 1351 */ 1352 //#define MBEDTLS_PSA_CRYPTO_SPM 1353 1354 /** 1355 * \def MBEDTLS_PSA_INJECT_ENTROPY 1356 * 1357 * Enable support for entropy injection at first boot. This feature is 1358 * required on systems that do not have a built-in entropy source (TRNG). 1359 * This feature is currently not supported on systems that have a built-in 1360 * entropy source. 1361 * 1362 * Requires: MBEDTLS_PSA_CRYPTO_STORAGE_C, MBEDTLS_ENTROPY_NV_SEED 1363 * 1364 */ 1365 //#define MBEDTLS_PSA_INJECT_ENTROPY 1366 1367 /** 1368 * \def MBEDTLS_RSA_NO_CRT 1369 * 1370 * Do not use the Chinese Remainder Theorem 1371 * for the RSA private operation. 1372 * 1373 * Uncomment this macro to disable the use of CRT in RSA. 1374 * 1375 */ 1376 //#define MBEDTLS_RSA_NO_CRT 1377 1378 /** 1379 * \def MBEDTLS_SELF_TEST 1380 * 1381 * Enable the checkup functions (*_self_test). 1382 */ 1383 #define MBEDTLS_SELF_TEST 1384 1385 /** 1386 * \def MBEDTLS_SHA256_SMALLER 1387 * 1388 * Enable an implementation of SHA-256 that has lower ROM footprint but also 1389 * lower performance. 1390 * 1391 * The default implementation is meant to be a reasonnable compromise between 1392 * performance and size. This version optimizes more aggressively for size at 1393 * the expense of performance. Eg on Cortex-M4 it reduces the size of 1394 * mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about 1395 * 30%. 1396 * 1397 * Uncomment to enable the smaller implementation of SHA256. 1398 */ 1399 //#define MBEDTLS_SHA256_SMALLER 1400 1401 /** 1402 * \def MBEDTLS_SHA512_SMALLER 1403 * 1404 * Enable an implementation of SHA-512 that has lower ROM footprint but also 1405 * lower performance. 1406 * 1407 * Uncomment to enable the smaller implementation of SHA512. 1408 */ 1409 //#define MBEDTLS_SHA512_SMALLER 1410 1411 /** 1412 * \def MBEDTLS_SHA512_NO_SHA384 1413 * 1414 * Disable the SHA-384 option of the SHA-512 module. Use this to save some 1415 * code size on devices that don't use SHA-384. 1416 * 1417 * Requires: MBEDTLS_SHA512_C 1418 * 1419 * Uncomment to disable SHA-384 1420 */ 1421 //#define MBEDTLS_SHA512_NO_SHA384 1422 1423 /** 1424 * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES 1425 * 1426 * Enable sending of alert messages in case of encountered errors as per RFC. 1427 * If you choose not to send the alert messages, mbed TLS can still communicate 1428 * with other servers, only debugging of failures is harder. 1429 * 1430 * The advantage of not sending alert messages, is that no information is given 1431 * about reasons for failures thus preventing adversaries of gaining intel. 1432 * 1433 * Enable sending of all alert messages 1434 */ 1435 #define MBEDTLS_SSL_ALL_ALERT_MESSAGES 1436 1437 /** 1438 * \def MBEDTLS_SSL_RECORD_CHECKING 1439 * 1440 * Enable the function mbedtls_ssl_check_record() which can be used to check 1441 * the validity and authenticity of an incoming record, to verify that it has 1442 * not been seen before. These checks are performed without modifying the 1443 * externally visible state of the SSL context. 1444 * 1445 * See mbedtls_ssl_check_record() for more information. 1446 * 1447 * Uncomment to enable support for record checking. 1448 */ 1449 #define MBEDTLS_SSL_RECORD_CHECKING 1450 1451 /** 1452 * \def MBEDTLS_SSL_DTLS_CONNECTION_ID 1453 * 1454 * Enable support for the DTLS Connection ID extension 1455 * (version draft-ietf-tls-dtls-connection-id-05, 1456 * https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05) 1457 * which allows to identify DTLS connections across changes 1458 * in the underlying transport. 1459 * 1460 * Setting this option enables the SSL APIs `mbedtls_ssl_set_cid()`, 1461 * `mbedtls_ssl_get_peer_cid()` and `mbedtls_ssl_conf_cid()`. 1462 * See the corresponding documentation for more information. 1463 * 1464 * \warning The Connection ID extension is still in draft state. 1465 * We make no stability promises for the availability 1466 * or the shape of the API controlled by this option. 1467 * 1468 * The maximum lengths of outgoing and incoming CIDs can be configured 1469 * through the options 1470 * - MBEDTLS_SSL_CID_OUT_LEN_MAX 1471 * - MBEDTLS_SSL_CID_IN_LEN_MAX. 1472 * 1473 * Requires: MBEDTLS_SSL_PROTO_DTLS 1474 * 1475 * Uncomment to enable the Connection ID extension. 1476 */ 1477 //#define MBEDTLS_SSL_DTLS_CONNECTION_ID 1478 1479 /** 1480 * \def MBEDTLS_SSL_ASYNC_PRIVATE 1481 * 1482 * Enable asynchronous external private key operations in SSL. This allows 1483 * you to configure an SSL connection to call an external cryptographic 1484 * module to perform private key operations instead of performing the 1485 * operation inside the library. 1486 * 1487 */ 1488 //#define MBEDTLS_SSL_ASYNC_PRIVATE 1489 1490 /** 1491 * \def MBEDTLS_SSL_CONTEXT_SERIALIZATION 1492 * 1493 * Enable serialization of the TLS context structures, through use of the 1494 * functions mbedtls_ssl_context_save() and mbedtls_ssl_context_load(). 1495 * 1496 * This pair of functions allows one side of a connection to serialize the 1497 * context associated with the connection, then free or re-use that context 1498 * while the serialized state is persisted elsewhere, and finally deserialize 1499 * that state to a live context for resuming read/write operations on the 1500 * connection. From a protocol perspective, the state of the connection is 1501 * unaffected, in particular this is entirely transparent to the peer. 1502 * 1503 * Note: this is distinct from TLS session resumption, which is part of the 1504 * protocol and fully visible by the peer. TLS session resumption enables 1505 * establishing new connections associated to a saved session with shorter, 1506 * lighter handshakes, while context serialization is a local optimization in 1507 * handling a single, potentially long-lived connection. 1508 * 1509 * Enabling these APIs makes some SSL structures larger, as 64 extra bytes are 1510 * saved after the handshake to allow for more efficient serialization, so if 1511 * you don't need this feature you'll save RAM by disabling it. 1512 * 1513 * Comment to disable the context serialization APIs. 1514 */ 1515 #define MBEDTLS_SSL_CONTEXT_SERIALIZATION 1516 1517 /** 1518 * \def MBEDTLS_SSL_DEBUG_ALL 1519 * 1520 * Enable the debug messages in SSL module for all issues. 1521 * Debug messages have been disabled in some places to prevent timing 1522 * attacks due to (unbalanced) debugging function calls. 1523 * 1524 * If you need all error reporting you should enable this during debugging, 1525 * but remove this for production servers that should log as well. 1526 * 1527 * Uncomment this macro to report all debug messages on errors introducing 1528 * a timing side-channel. 1529 * 1530 */ 1531 //#define MBEDTLS_SSL_DEBUG_ALL 1532 1533 /** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC 1534 * 1535 * Enable support for Encrypt-then-MAC, RFC 7366. 1536 * 1537 * This allows peers that both support it to use a more robust protection for 1538 * ciphersuites using CBC, providing deep resistance against timing attacks 1539 * on the padding or underlying cipher. 1540 * 1541 * This only affects CBC ciphersuites, and is useless if none is defined. 1542 * 1543 * Requires: MBEDTLS_SSL_PROTO_TLS1 or 1544 * MBEDTLS_SSL_PROTO_TLS1_1 or 1545 * MBEDTLS_SSL_PROTO_TLS1_2 1546 * 1547 * Comment this macro to disable support for Encrypt-then-MAC 1548 */ 1549 #define MBEDTLS_SSL_ENCRYPT_THEN_MAC 1550 1551 /** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET 1552 * 1553 * Enable support for RFC 7627: Session Hash and Extended Master Secret 1554 * Extension. 1555 * 1556 * This was introduced as "the proper fix" to the Triple Handshake familiy of 1557 * attacks, but it is recommended to always use it (even if you disable 1558 * renegotiation), since it actually fixes a more fundamental issue in the 1559 * original SSL/TLS design, and has implications beyond Triple Handshake. 1560 * 1561 * Requires: MBEDTLS_SSL_PROTO_TLS1 or 1562 * MBEDTLS_SSL_PROTO_TLS1_1 or 1563 * MBEDTLS_SSL_PROTO_TLS1_2 1564 * 1565 * Comment this macro to disable support for Extended Master Secret. 1566 */ 1567 #define MBEDTLS_SSL_EXTENDED_MASTER_SECRET 1568 1569 /** 1570 * \def MBEDTLS_SSL_FALLBACK_SCSV 1571 * 1572 * Enable support for RFC 7507: Fallback Signaling Cipher Suite Value (SCSV) 1573 * for Preventing Protocol Downgrade Attacks. 1574 * 1575 * For servers, it is recommended to always enable this, unless you support 1576 * only one version of TLS, or know for sure that none of your clients 1577 * implements a fallback strategy. 1578 * 1579 * For clients, you only need this if you're using a fallback strategy, which 1580 * is not recommended in the first place, unless you absolutely need it to 1581 * interoperate with buggy (version-intolerant) servers. 1582 * 1583 * Comment this macro to disable support for FALLBACK_SCSV 1584 */ 1585 #define MBEDTLS_SSL_FALLBACK_SCSV 1586 1587 /** 1588 * \def MBEDTLS_SSL_KEEP_PEER_CERTIFICATE 1589 * 1590 * This option controls the availability of the API mbedtls_ssl_get_peer_cert() 1591 * giving access to the peer's certificate after completion of the handshake. 1592 * 1593 * Unless you need mbedtls_ssl_peer_cert() in your application, it is 1594 * recommended to disable this option for reduced RAM usage. 1595 * 1596 * \note If this option is disabled, mbedtls_ssl_get_peer_cert() is still 1597 * defined, but always returns \c NULL. 1598 * 1599 * \note This option has no influence on the protection against the 1600 * triple handshake attack. Even if it is disabled, Mbed TLS will 1601 * still ensure that certificates do not change during renegotiation, 1602 * for exaple by keeping a hash of the peer's certificate. 1603 * 1604 * Comment this macro to disable storing the peer's certificate 1605 * after the handshake. 1606 */ 1607 #define MBEDTLS_SSL_KEEP_PEER_CERTIFICATE 1608 1609 /** 1610 * \def MBEDTLS_SSL_HW_RECORD_ACCEL 1611 * 1612 * Enable hooking functions in SSL module for hardware acceleration of 1613 * individual records. 1614 * 1615 * \deprecated This option is deprecated and will be removed in a future 1616 * version of Mbed TLS. 1617 * 1618 * Uncomment this macro to enable hooking functions. 1619 */ 1620 //#define MBEDTLS_SSL_HW_RECORD_ACCEL 1621 1622 /** 1623 * \def MBEDTLS_SSL_CBC_RECORD_SPLITTING 1624 * 1625 * Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0. 1626 * 1627 * This is a countermeasure to the BEAST attack, which also minimizes the risk 1628 * of interoperability issues compared to sending 0-length records. 1629 * 1630 * Comment this macro to disable 1/n-1 record splitting. 1631 */ 1632 #define MBEDTLS_SSL_CBC_RECORD_SPLITTING 1633 1634 /** 1635 * \def MBEDTLS_SSL_RENEGOTIATION 1636 * 1637 * Enable support for TLS renegotiation. 1638 * 1639 * The two main uses of renegotiation are (1) refresh keys on long-lived 1640 * connections and (2) client authentication after the initial handshake. 1641 * If you don't need renegotiation, it's probably better to disable it, since 1642 * it has been associated with security issues in the past and is easy to 1643 * misuse/misunderstand. 1644 * 1645 * Comment this to disable support for renegotiation. 1646 * 1647 * \note Even if this option is disabled, both client and server are aware 1648 * of the Renegotiation Indication Extension (RFC 5746) used to 1649 * prevent the SSL renegotiation attack (see RFC 5746 Sect. 1). 1650 * (See \c mbedtls_ssl_conf_legacy_renegotiation for the 1651 * configuration of this extension). 1652 * 1653 */ 1654 #define MBEDTLS_SSL_RENEGOTIATION 1655 1656 /** 1657 * \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO 1658 * 1659 * Enable support for receiving and parsing SSLv2 Client Hello messages for the 1660 * SSL Server module (MBEDTLS_SSL_SRV_C). 1661 * 1662 * \deprecated This option is deprecated and will be removed in a future 1663 * version of Mbed TLS. 1664 * 1665 * Uncomment this macro to enable support for SSLv2 Client Hello messages. 1666 */ 1667 //#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO 1668 1669 /** 1670 * \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE 1671 * 1672 * Pick the ciphersuite according to the client's preferences rather than ours 1673 * in the SSL Server module (MBEDTLS_SSL_SRV_C). 1674 * 1675 * Uncomment this macro to respect client's ciphersuite order 1676 */ 1677 //#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE 1678 1679 /** 1680 * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH 1681 * 1682 * Enable support for RFC 6066 max_fragment_length extension in SSL. 1683 * 1684 * Comment this macro to disable support for the max_fragment_length extension 1685 */ 1686 #define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH 1687 1688 /** 1689 * \def MBEDTLS_SSL_PROTO_SSL3 1690 * 1691 * Enable support for SSL 3.0. 1692 * 1693 * Requires: MBEDTLS_MD5_C 1694 * MBEDTLS_SHA1_C 1695 * 1696 * \deprecated This option is deprecated and will be removed in a future 1697 * version of Mbed TLS. 1698 * 1699 * Comment this macro to disable support for SSL 3.0 1700 */ 1701 //#define MBEDTLS_SSL_PROTO_SSL3 1702 1703 /** 1704 * \def MBEDTLS_SSL_PROTO_TLS1 1705 * 1706 * Enable support for TLS 1.0. 1707 * 1708 * Requires: MBEDTLS_MD5_C 1709 * MBEDTLS_SHA1_C 1710 * 1711 * Comment this macro to disable support for TLS 1.0 1712 */ 1713 #define MBEDTLS_SSL_PROTO_TLS1 1714 1715 /** 1716 * \def MBEDTLS_SSL_PROTO_TLS1_1 1717 * 1718 * Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled). 1719 * 1720 * Requires: MBEDTLS_MD5_C 1721 * MBEDTLS_SHA1_C 1722 * 1723 * Comment this macro to disable support for TLS 1.1 / DTLS 1.0 1724 */ 1725 #define MBEDTLS_SSL_PROTO_TLS1_1 1726 1727 /** 1728 * \def MBEDTLS_SSL_PROTO_TLS1_2 1729 * 1730 * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled). 1731 * 1732 * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C 1733 * (Depends on ciphersuites) 1734 * 1735 * Comment this macro to disable support for TLS 1.2 / DTLS 1.2 1736 */ 1737 #define MBEDTLS_SSL_PROTO_TLS1_2 1738 1739 /** 1740 * \def MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL 1741 * 1742 * This macro is used to selectively enable experimental parts 1743 * of the code that contribute to the ongoing development of 1744 * the prototype TLS 1.3 and DTLS 1.3 implementation, and provide 1745 * no other purpose. 1746 * 1747 * \warning TLS 1.3 and DTLS 1.3 aren't yet supported in Mbed TLS, 1748 * and no feature exposed through this macro is part of the 1749 * public API. In particular, features under the control 1750 * of this macro are experimental and don't come with any 1751 * stability guarantees. 1752 * 1753 * Uncomment this macro to enable experimental and partial 1754 * functionality specific to TLS 1.3. 1755 */ 1756 //#define MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL 1757 1758 /** 1759 * \def MBEDTLS_SSL_PROTO_DTLS 1760 * 1761 * Enable support for DTLS (all available versions). 1762 * 1763 * Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0, 1764 * and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2. 1765 * 1766 * Requires: MBEDTLS_SSL_PROTO_TLS1_1 1767 * or MBEDTLS_SSL_PROTO_TLS1_2 1768 * 1769 * Comment this macro to disable support for DTLS 1770 */ 1771 #define MBEDTLS_SSL_PROTO_DTLS 1772 1773 /** 1774 * \def MBEDTLS_SSL_ALPN 1775 * 1776 * Enable support for RFC 7301 Application Layer Protocol Negotiation. 1777 * 1778 * Comment this macro to disable support for ALPN. 1779 */ 1780 #define MBEDTLS_SSL_ALPN 1781 1782 /** 1783 * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY 1784 * 1785 * Enable support for the anti-replay mechanism in DTLS. 1786 * 1787 * Requires: MBEDTLS_SSL_TLS_C 1788 * MBEDTLS_SSL_PROTO_DTLS 1789 * 1790 * \warning Disabling this is often a security risk! 1791 * See mbedtls_ssl_conf_dtls_anti_replay() for details. 1792 * 1793 * Comment this to disable anti-replay in DTLS. 1794 */ 1795 #define MBEDTLS_SSL_DTLS_ANTI_REPLAY 1796 1797 /** 1798 * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY 1799 * 1800 * Enable support for HelloVerifyRequest on DTLS servers. 1801 * 1802 * This feature is highly recommended to prevent DTLS servers being used as 1803 * amplifiers in DoS attacks against other hosts. It should always be enabled 1804 * unless you know for sure amplification cannot be a problem in the 1805 * environment in which your server operates. 1806 * 1807 * \warning Disabling this can ba a security risk! (see above) 1808 * 1809 * Requires: MBEDTLS_SSL_PROTO_DTLS 1810 * 1811 * Comment this to disable support for HelloVerifyRequest. 1812 */ 1813 #define MBEDTLS_SSL_DTLS_HELLO_VERIFY 1814 1815 /** 1816 * \def MBEDTLS_SSL_DTLS_SRTP 1817 * 1818 * Enable support for negotation of DTLS-SRTP (RFC 5764) 1819 * through the use_srtp extension. 1820 * 1821 * \note This feature provides the minimum functionality required 1822 * to negotiate the use of DTLS-SRTP and to allow the derivation of 1823 * the associated SRTP packet protection key material. 1824 * In particular, the SRTP packet protection itself, as well as the 1825 * demultiplexing of RTP and DTLS packets at the datagram layer 1826 * (see Section 5 of RFC 5764), are not handled by this feature. 1827 * Instead, after successful completion of a handshake negotiating 1828 * the use of DTLS-SRTP, the extended key exporter API 1829 * mbedtls_ssl_conf_export_keys_ext_cb() should be used to implement 1830 * the key exporter described in Section 4.2 of RFC 5764 and RFC 5705 1831 * (this is implemented in the SSL example programs). 1832 * The resulting key should then be passed to an SRTP stack. 1833 * 1834 * Setting this option enables the runtime API 1835 * mbedtls_ssl_conf_dtls_srtp_protection_profiles() 1836 * through which the supported DTLS-SRTP protection 1837 * profiles can be configured. You must call this API at 1838 * runtime if you wish to negotiate the use of DTLS-SRTP. 1839 * 1840 * Requires: MBEDTLS_SSL_PROTO_DTLS 1841 * 1842 * Uncomment this to enable support for use_srtp extension. 1843 */ 1844 //#define MBEDTLS_SSL_DTLS_SRTP 1845 1846 /** 1847 * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE 1848 * 1849 * Enable server-side support for clients that reconnect from the same port. 1850 * 1851 * Some clients unexpectedly close the connection and try to reconnect using the 1852 * same source port. This needs special support from the server to handle the 1853 * new connection securely, as described in section 4.2.8 of RFC 6347. This 1854 * flag enables that support. 1855 * 1856 * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY 1857 * 1858 * Comment this to disable support for clients reusing the source port. 1859 */ 1860 #define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE 1861 1862 /** 1863 * \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT 1864 * 1865 * Enable support for a limit of records with bad MAC. 1866 * 1867 * See mbedtls_ssl_conf_dtls_badmac_limit(). 1868 * 1869 * Requires: MBEDTLS_SSL_PROTO_DTLS 1870 */ 1871 #define MBEDTLS_SSL_DTLS_BADMAC_LIMIT 1872 1873 /** 1874 * \def MBEDTLS_SSL_SESSION_TICKETS 1875 * 1876 * Enable support for RFC 5077 session tickets in SSL. 1877 * Client-side, provides full support for session tickets (maintenance of a 1878 * session store remains the responsibility of the application, though). 1879 * Server-side, you also need to provide callbacks for writing and parsing 1880 * tickets, including authenticated encryption and key management. Example 1881 * callbacks are provided by MBEDTLS_SSL_TICKET_C. 1882 * 1883 * Comment this macro to disable support for SSL session tickets 1884 */ 1885 #define MBEDTLS_SSL_SESSION_TICKETS 1886 1887 /** 1888 * \def MBEDTLS_SSL_EXPORT_KEYS 1889 * 1890 * Enable support for exporting key block and master secret. 1891 * This is required for certain users of TLS, e.g. EAP-TLS. 1892 * 1893 * Comment this macro to disable support for key export 1894 */ 1895 #define MBEDTLS_SSL_EXPORT_KEYS 1896 1897 /** 1898 * \def MBEDTLS_SSL_SERVER_NAME_INDICATION 1899 * 1900 * Enable support for RFC 6066 server name indication (SNI) in SSL. 1901 * 1902 * Requires: MBEDTLS_X509_CRT_PARSE_C 1903 * 1904 * Comment this macro to disable support for server name indication in SSL 1905 */ 1906 #define MBEDTLS_SSL_SERVER_NAME_INDICATION 1907 1908 /** 1909 * \def MBEDTLS_SSL_TRUNCATED_HMAC 1910 * 1911 * Enable support for RFC 6066 truncated HMAC in SSL. 1912 * 1913 * Comment this macro to disable support for truncated HMAC in SSL 1914 */ 1915 #define MBEDTLS_SSL_TRUNCATED_HMAC 1916 1917 /** 1918 * \def MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT 1919 * 1920 * Fallback to old (pre-2.7), non-conforming implementation of the truncated 1921 * HMAC extension which also truncates the HMAC key. Note that this option is 1922 * only meant for a transitory upgrade period and will be removed in a future 1923 * version of the library. 1924 * 1925 * \warning The old implementation is non-compliant and has a security weakness 1926 * (2^80 brute force attack on the HMAC key used for a single, 1927 * uninterrupted connection). This should only be enabled temporarily 1928 * when (1) the use of truncated HMAC is essential in order to save 1929 * bandwidth, and (2) the peer is an Mbed TLS stack that doesn't use 1930 * the fixed implementation yet (pre-2.7). 1931 * 1932 * \deprecated This option is deprecated and will be removed in a 1933 * future version of Mbed TLS. 1934 * 1935 * Uncomment to fallback to old, non-compliant truncated HMAC implementation. 1936 * 1937 * Requires: MBEDTLS_SSL_TRUNCATED_HMAC 1938 */ 1939 //#define MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT 1940 1941 /** 1942 * \def MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH 1943 * 1944 * Enable modifying the maximum I/O buffer size. 1945 */ 1946 //#define MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH 1947 1948 /** 1949 * \def MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN 1950 * 1951 * Enable testing of the constant-flow nature of some sensitive functions with 1952 * clang's MemorySanitizer. This causes some existing tests to also test 1953 * this non-functional property of the code under test. 1954 * 1955 * This setting requires compiling with clang -fsanitize=memory. The test 1956 * suites can then be run normally. 1957 * 1958 * \warning This macro is only used for extended testing; it is not considered 1959 * part of the library's API, so it may change or disappear at any time. 1960 * 1961 * Uncomment to enable testing of the constant-flow nature of selected code. 1962 */ 1963 //#define MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN 1964 1965 /** 1966 * \def MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND 1967 * 1968 * Enable testing of the constant-flow nature of some sensitive functions with 1969 * valgrind's memcheck tool. This causes some existing tests to also test 1970 * this non-functional property of the code under test. 1971 * 1972 * This setting requires valgrind headers for building, and is only useful for 1973 * testing if the tests suites are run with valgrind's memcheck. This can be 1974 * done for an individual test suite with 'valgrind ./test_suite_xxx', or when 1975 * using CMake, this can be done for all test suites with 'make memcheck'. 1976 * 1977 * \warning This macro is only used for extended testing; it is not considered 1978 * part of the library's API, so it may change or disappear at any time. 1979 * 1980 * Uncomment to enable testing of the constant-flow nature of selected code. 1981 */ 1982 //#define MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND 1983 1984 /** 1985 * \def MBEDTLS_TEST_HOOKS 1986 * 1987 * Enable features for invasive testing such as introspection functions and 1988 * hooks for fault injection. This enables additional unit tests. 1989 * 1990 * Merely enabling this feature should not change the behavior of the product. 1991 * It only adds new code, and new branching points where the default behavior 1992 * is the same as when this feature is disabled. 1993 * However, this feature increases the attack surface: there is an added 1994 * risk of vulnerabilities, and more gadgets that can make exploits easier. 1995 * Therefore this feature must never be enabled in production. 1996 * 1997 * See `docs/architecture/testing/mbed-crypto-invasive-testing.md` for more 1998 * information. 1999 * 2000 * Uncomment to enable invasive tests. 2001 */ 2002 //#define MBEDTLS_TEST_HOOKS 2003 2004 /** 2005 * \def MBEDTLS_THREADING_ALT 2006 * 2007 * Provide your own alternate threading implementation. 2008 * 2009 * Requires: MBEDTLS_THREADING_C 2010 * 2011 * Uncomment this to allow your own alternate threading implementation. 2012 */ 2013 //#define MBEDTLS_THREADING_ALT 2014 2015 /** 2016 * \def MBEDTLS_THREADING_PTHREAD 2017 * 2018 * Enable the pthread wrapper layer for the threading layer. 2019 * 2020 * Requires: MBEDTLS_THREADING_C 2021 * 2022 * Uncomment this to enable pthread mutexes. 2023 */ 2024 //#define MBEDTLS_THREADING_PTHREAD 2025 2026 /** 2027 * \def MBEDTLS_USE_PSA_CRYPTO 2028 * 2029 * Make the X.509 and TLS library use PSA for cryptographic operations, and 2030 * enable new APIs for using keys handled by PSA Crypto. 2031 * 2032 * \note Development of this option is currently in progress, and parts of Mbed 2033 * TLS's X.509 and TLS modules are not ported to PSA yet. However, these parts 2034 * will still continue to work as usual, so enabling this option should not 2035 * break backwards compatibility. 2036 * 2037 * \warning The PSA Crypto API is in beta stage. While you're welcome to 2038 * experiment using it, incompatible API changes are still possible, and some 2039 * parts may not have reached the same quality as the rest of Mbed TLS yet. 2040 * 2041 * \warning This option enables new Mbed TLS APIs that are dependent on the 2042 * PSA Crypto API, so can't come with the same stability guarantees as the 2043 * rest of the Mbed TLS APIs. You're welcome to experiment with them, but for 2044 * now, access to these APIs is opt-in (via enabling the present option), in 2045 * order to clearly differentiate them from the stable Mbed TLS APIs. 2046 * 2047 * Requires: MBEDTLS_PSA_CRYPTO_C. 2048 * 2049 * Uncomment this to enable internal use of PSA Crypto and new associated APIs. 2050 */ 2051 //#define MBEDTLS_USE_PSA_CRYPTO 2052 2053 /** 2054 * \def MBEDTLS_PSA_CRYPTO_CONFIG 2055 * 2056 * This setting allows support for cryptographic mechanisms through the PSA 2057 * API to be configured separately from support through the mbedtls API. 2058 * 2059 * Uncomment this to enable use of PSA Crypto configuration settings which 2060 * can be found in include/psa/crypto_config.h. 2061 * 2062 * If you enable this option and write your own configuration file, you must 2063 * include mbedtls/config_psa.h in your configuration file. The default 2064 * provided mbedtls/config.h contains the necessary inclusion. 2065 * 2066 * This feature is still experimental and is not ready for production since 2067 * it is not completed. 2068 */ 2069 //#define MBEDTLS_PSA_CRYPTO_CONFIG 2070 2071 /** 2072 * \def MBEDTLS_VERSION_FEATURES 2073 * 2074 * Allow run-time checking of compile-time enabled features. Thus allowing users 2075 * to check at run-time if the library is for instance compiled with threading 2076 * support via mbedtls_version_check_feature(). 2077 * 2078 * Requires: MBEDTLS_VERSION_C 2079 * 2080 * Comment this to disable run-time checking and save ROM space 2081 */ 2082 #define MBEDTLS_VERSION_FEATURES 2083 2084 /** 2085 * \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 2086 * 2087 * If set, the X509 parser will not break-off when parsing an X509 certificate 2088 * and encountering an extension in a v1 or v2 certificate. 2089 * 2090 * Uncomment to prevent an error. 2091 */ 2092 //#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 2093 2094 /** 2095 * \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION 2096 * 2097 * If set, the X509 parser will not break-off when parsing an X509 certificate 2098 * and encountering an unknown critical extension. 2099 * 2100 * \warning Depending on your PKI use, enabling this can be a security risk! 2101 * 2102 * Uncomment to prevent an error. 2103 */ 2104 //#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION 2105 2106 /** 2107 * \def MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK 2108 * 2109 * If set, this enables the X.509 API `mbedtls_x509_crt_verify_with_ca_cb()` 2110 * and the SSL API `mbedtls_ssl_conf_ca_cb()` which allow users to configure 2111 * the set of trusted certificates through a callback instead of a linked 2112 * list. 2113 * 2114 * This is useful for example in environments where a large number of trusted 2115 * certificates is present and storing them in a linked list isn't efficient 2116 * enough, or when the set of trusted certificates changes frequently. 2117 * 2118 * See the documentation of `mbedtls_x509_crt_verify_with_ca_cb()` and 2119 * `mbedtls_ssl_conf_ca_cb()` for more information. 2120 * 2121 * Uncomment to enable trusted certificate callbacks. 2122 */ 2123 //#define MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK 2124 2125 /** 2126 * \def MBEDTLS_X509_CHECK_KEY_USAGE 2127 * 2128 * Enable verification of the keyUsage extension (CA and leaf certificates). 2129 * 2130 * Disabling this avoids problems with mis-issued and/or misused 2131 * (intermediate) CA and leaf certificates. 2132 * 2133 * \warning Depending on your PKI use, disabling this can be a security risk! 2134 * 2135 * Comment to skip keyUsage checking for both CA and leaf certificates. 2136 */ 2137 #define MBEDTLS_X509_CHECK_KEY_USAGE 2138 2139 /** 2140 * \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE 2141 * 2142 * Enable verification of the extendedKeyUsage extension (leaf certificates). 2143 * 2144 * Disabling this avoids problems with mis-issued and/or misused certificates. 2145 * 2146 * \warning Depending on your PKI use, disabling this can be a security risk! 2147 * 2148 * Comment to skip extendedKeyUsage checking for certificates. 2149 */ 2150 #define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE 2151 2152 /** 2153 * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT 2154 * 2155 * Enable parsing and verification of X.509 certificates, CRLs and CSRS 2156 * signed with RSASSA-PSS (aka PKCS#1 v2.1). 2157 * 2158 * Comment this macro to disallow using RSASSA-PSS in certificates. 2159 */ 2160 #define MBEDTLS_X509_RSASSA_PSS_SUPPORT 2161 2162 /** 2163 * \def MBEDTLS_ZLIB_SUPPORT 2164 * 2165 * If set, the SSL/TLS module uses ZLIB to support compression and 2166 * decompression of packet data. 2167 * 2168 * \warning TLS-level compression MAY REDUCE SECURITY! See for example the 2169 * CRIME attack. Before enabling this option, you should examine with care if 2170 * CRIME or similar exploits may be applicable to your use case. 2171 * 2172 * \note Currently compression can't be used with DTLS. 2173 * 2174 * \deprecated This feature is deprecated and will be removed 2175 * in the next major revision of the library. 2176 * 2177 * Used in: library/ssl_tls.c 2178 * library/ssl_cli.c 2179 * library/ssl_srv.c 2180 * 2181 * This feature requires zlib library and headers to be present. 2182 * 2183 * Uncomment to enable use of ZLIB 2184 */ 2185 //#define MBEDTLS_ZLIB_SUPPORT 2186 /* \} name SECTION: mbed TLS feature support */ 2187 2188 /** 2189 * \name SECTION: mbed TLS modules 2190 * 2191 * This section enables or disables entire modules in mbed TLS 2192 * \{ 2193 */ 2194 2195 /** 2196 * \def MBEDTLS_AESNI_C 2197 * 2198 * Enable AES-NI support on x86-64. 2199 * 2200 * Module: library/aesni.c 2201 * Caller: library/aes.c 2202 * 2203 * Requires: MBEDTLS_HAVE_ASM 2204 * 2205 * This modules adds support for the AES-NI instructions on x86-64 2206 */ 2207 #define MBEDTLS_AESNI_C 2208 2209 /** 2210 * \def MBEDTLS_AES_C 2211 * 2212 * Enable the AES block cipher. 2213 * 2214 * Module: library/aes.c 2215 * Caller: library/cipher.c 2216 * library/pem.c 2217 * library/ctr_drbg.c 2218 * 2219 * This module enables the following ciphersuites (if other requisites are 2220 * enabled as well): 2221 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 2222 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 2223 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 2224 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 2225 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 2226 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 2227 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 2228 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 2229 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 2230 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 2231 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 2232 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 2233 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 2234 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 2235 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 2236 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 2237 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 2238 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 2239 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 2240 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 2241 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 2242 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 2243 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 2244 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 2245 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 2246 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 2247 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 2248 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 2249 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 2250 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 2251 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 2252 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 2253 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 2254 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 2255 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 2256 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 2257 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 2258 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 2259 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 2260 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 2261 * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 2262 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 2263 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 2264 * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 2265 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 2266 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 2267 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 2268 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 2269 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 2270 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 2271 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 2272 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 2273 * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 2274 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 2275 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 2276 * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 2277 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 2278 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 2279 * 2280 * PEM_PARSE uses AES for decrypting encrypted keys. 2281 */ 2282 #define MBEDTLS_AES_C 2283 2284 /** 2285 * \def MBEDTLS_ARC4_C 2286 * 2287 * Enable the ARCFOUR stream cipher. 2288 * 2289 * Module: library/arc4.c 2290 * Caller: library/cipher.c 2291 * 2292 * This module enables the following ciphersuites (if other requisites are 2293 * enabled as well): 2294 * MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA 2295 * MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA 2296 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA 2297 * MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA 2298 * MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA 2299 * MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA 2300 * MBEDTLS_TLS_RSA_WITH_RC4_128_SHA 2301 * MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 2302 * MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA 2303 * MBEDTLS_TLS_PSK_WITH_RC4_128_SHA 2304 * 2305 * \warning ARC4 is considered a weak cipher and its use constitutes a 2306 * security risk. If possible, we recommend avoidng dependencies on 2307 * it, and considering stronger ciphers instead. 2308 * 2309 */ 2310 #define MBEDTLS_ARC4_C 2311 2312 /** 2313 * \def MBEDTLS_ASN1_PARSE_C 2314 * 2315 * Enable the generic ASN1 parser. 2316 * 2317 * Module: library/asn1.c 2318 * Caller: library/x509.c 2319 * library/dhm.c 2320 * library/pkcs12.c 2321 * library/pkcs5.c 2322 * library/pkparse.c 2323 */ 2324 #define MBEDTLS_ASN1_PARSE_C 2325 2326 /** 2327 * \def MBEDTLS_ASN1_WRITE_C 2328 * 2329 * Enable the generic ASN1 writer. 2330 * 2331 * Module: library/asn1write.c 2332 * Caller: library/ecdsa.c 2333 * library/pkwrite.c 2334 * library/x509_create.c 2335 * library/x509write_crt.c 2336 * library/x509write_csr.c 2337 */ 2338 #define MBEDTLS_ASN1_WRITE_C 2339 2340 /** 2341 * \def MBEDTLS_BASE64_C 2342 * 2343 * Enable the Base64 module. 2344 * 2345 * Module: library/base64.c 2346 * Caller: library/pem.c 2347 * 2348 * This module is required for PEM support (required by X.509). 2349 */ 2350 #define MBEDTLS_BASE64_C 2351 2352 /** 2353 * \def MBEDTLS_BIGNUM_C 2354 * 2355 * Enable the multi-precision integer library. 2356 * 2357 * Module: library/bignum.c 2358 * Caller: library/dhm.c 2359 * library/ecp.c 2360 * library/ecdsa.c 2361 * library/rsa.c 2362 * library/rsa_internal.c 2363 * library/ssl_tls.c 2364 * 2365 * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support. 2366 */ 2367 #define MBEDTLS_BIGNUM_C 2368 2369 /** 2370 * \def MBEDTLS_BLOWFISH_C 2371 * 2372 * Enable the Blowfish block cipher. 2373 * 2374 * Module: library/blowfish.c 2375 */ 2376 #define MBEDTLS_BLOWFISH_C 2377 2378 /** 2379 * \def MBEDTLS_CAMELLIA_C 2380 * 2381 * Enable the Camellia block cipher. 2382 * 2383 * Module: library/camellia.c 2384 * Caller: library/cipher.c 2385 * 2386 * This module enables the following ciphersuites (if other requisites are 2387 * enabled as well): 2388 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 2389 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 2390 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 2391 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 2392 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 2393 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 2394 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 2395 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 2396 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 2397 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 2398 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 2399 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 2400 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 2401 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 2402 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 2403 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 2404 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 2405 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 2406 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 2407 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 2408 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 2409 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 2410 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 2411 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 2412 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 2413 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 2414 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 2415 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 2416 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 2417 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 2418 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 2419 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 2420 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 2421 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 2422 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 2423 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 2424 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 2425 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 2426 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 2427 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 2428 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 2429 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 2430 */ 2431 #define MBEDTLS_CAMELLIA_C 2432 2433 /** 2434 * \def MBEDTLS_ARIA_C 2435 * 2436 * Enable the ARIA block cipher. 2437 * 2438 * Module: library/aria.c 2439 * Caller: library/cipher.c 2440 * 2441 * This module enables the following ciphersuites (if other requisites are 2442 * enabled as well): 2443 * 2444 * MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256 2445 * MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384 2446 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 2447 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 2448 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 2449 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 2450 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 2451 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 2452 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 2453 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 2454 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 2455 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 2456 * MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256 2457 * MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384 2458 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 2459 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 2460 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 2461 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 2462 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 2463 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 2464 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 2465 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 2466 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 2467 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 2468 * MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256 2469 * MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384 2470 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 2471 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 2472 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 2473 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 2474 * MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256 2475 * MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384 2476 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 2477 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 2478 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 2479 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 2480 * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 2481 * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 2482 */ 2483 //#define MBEDTLS_ARIA_C 2484 2485 /** 2486 * \def MBEDTLS_CCM_C 2487 * 2488 * Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher. 2489 * 2490 * Module: library/ccm.c 2491 * 2492 * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C 2493 * 2494 * This module enables the AES-CCM ciphersuites, if other requisites are 2495 * enabled as well. 2496 */ 2497 #define MBEDTLS_CCM_C 2498 2499 /** 2500 * \def MBEDTLS_CERTS_C 2501 * 2502 * Enable the test certificates. 2503 * 2504 * Module: library/certs.c 2505 * Caller: 2506 * 2507 * This module is used for testing (ssl_client/server). 2508 */ 2509 #define MBEDTLS_CERTS_C 2510 2511 /** 2512 * \def MBEDTLS_CHACHA20_C 2513 * 2514 * Enable the ChaCha20 stream cipher. 2515 * 2516 * Module: library/chacha20.c 2517 */ 2518 #define MBEDTLS_CHACHA20_C 2519 2520 /** 2521 * \def MBEDTLS_CHACHAPOLY_C 2522 * 2523 * Enable the ChaCha20-Poly1305 AEAD algorithm. 2524 * 2525 * Module: library/chachapoly.c 2526 * 2527 * This module requires: MBEDTLS_CHACHA20_C, MBEDTLS_POLY1305_C 2528 */ 2529 #define MBEDTLS_CHACHAPOLY_C 2530 2531 /** 2532 * \def MBEDTLS_CIPHER_C 2533 * 2534 * Enable the generic cipher layer. 2535 * 2536 * Module: library/cipher.c 2537 * Caller: library/ssl_tls.c 2538 * 2539 * Uncomment to enable generic cipher wrappers. 2540 */ 2541 #define MBEDTLS_CIPHER_C 2542 2543 /** 2544 * \def MBEDTLS_CMAC_C 2545 * 2546 * Enable the CMAC (Cipher-based Message Authentication Code) mode for block 2547 * ciphers. 2548 * 2549 * Module: library/cmac.c 2550 * 2551 * Requires: MBEDTLS_AES_C or MBEDTLS_DES_C 2552 * 2553 */ 2554 //#define MBEDTLS_CMAC_C 2555 2556 /** 2557 * \def MBEDTLS_CTR_DRBG_C 2558 * 2559 * Enable the CTR_DRBG AES-based random generator. 2560 * The CTR_DRBG generator uses AES-256 by default. 2561 * To use AES-128 instead, enable \c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY above. 2562 * 2563 * \note To achieve a 256-bit security strength with CTR_DRBG, 2564 * you must use AES-256 *and* use sufficient entropy. 2565 * See ctr_drbg.h for more details. 2566 * 2567 * Module: library/ctr_drbg.c 2568 * Caller: 2569 * 2570 * Requires: MBEDTLS_AES_C 2571 * 2572 * This module provides the CTR_DRBG AES random number generator. 2573 */ 2574 #define MBEDTLS_CTR_DRBG_C 2575 2576 /** 2577 * \def MBEDTLS_DEBUG_C 2578 * 2579 * Enable the debug functions. 2580 * 2581 * Module: library/debug.c 2582 * Caller: library/ssl_cli.c 2583 * library/ssl_srv.c 2584 * library/ssl_tls.c 2585 * 2586 * This module provides debugging functions. 2587 */ 2588 #define MBEDTLS_DEBUG_C 2589 2590 /** 2591 * \def MBEDTLS_DES_C 2592 * 2593 * Enable the DES block cipher. 2594 * 2595 * Module: library/des.c 2596 * Caller: library/pem.c 2597 * library/cipher.c 2598 * 2599 * This module enables the following ciphersuites (if other requisites are 2600 * enabled as well): 2601 * MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA 2602 * MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA 2603 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA 2604 * MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA 2605 * MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 2606 * MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA 2607 * MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA 2608 * MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA 2609 * MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA 2610 * MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA 2611 * 2612 * PEM_PARSE uses DES/3DES for decrypting encrypted keys. 2613 * 2614 * \warning DES is considered a weak cipher and its use constitutes a 2615 * security risk. We recommend considering stronger ciphers instead. 2616 */ 2617 #define MBEDTLS_DES_C 2618 2619 /** 2620 * \def MBEDTLS_DHM_C 2621 * 2622 * Enable the Diffie-Hellman-Merkle module. 2623 * 2624 * Module: library/dhm.c 2625 * Caller: library/ssl_cli.c 2626 * library/ssl_srv.c 2627 * 2628 * This module is used by the following key exchanges: 2629 * DHE-RSA, DHE-PSK 2630 * 2631 * \warning Using DHE constitutes a security risk as it 2632 * is not possible to validate custom DH parameters. 2633 * If possible, it is recommended users should consider 2634 * preferring other methods of key exchange. 2635 * See dhm.h for more details. 2636 * 2637 */ 2638 #define MBEDTLS_DHM_C 2639 2640 /** 2641 * \def MBEDTLS_ECDH_C 2642 * 2643 * Enable the elliptic curve Diffie-Hellman library. 2644 * 2645 * Module: library/ecdh.c 2646 * Caller: library/ssl_cli.c 2647 * library/ssl_srv.c 2648 * 2649 * This module is used by the following key exchanges: 2650 * ECDHE-ECDSA, ECDHE-RSA, DHE-PSK 2651 * 2652 * Requires: MBEDTLS_ECP_C 2653 */ 2654 #define MBEDTLS_ECDH_C 2655 2656 /** 2657 * \def MBEDTLS_ECDSA_C 2658 * 2659 * Enable the elliptic curve DSA library. 2660 * 2661 * Module: library/ecdsa.c 2662 * Caller: 2663 * 2664 * This module is used by the following key exchanges: 2665 * ECDHE-ECDSA 2666 * 2667 * Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C, 2668 * and at least one MBEDTLS_ECP_DP_XXX_ENABLED for a 2669 * short Weierstrass curve. 2670 */ 2671 #define MBEDTLS_ECDSA_C 2672 2673 /** 2674 * \def MBEDTLS_ECJPAKE_C 2675 * 2676 * Enable the elliptic curve J-PAKE library. 2677 * 2678 * \warning This is currently experimental. EC J-PAKE support is based on the 2679 * Thread v1.0.0 specification; incompatible changes to the specification 2680 * might still happen. For this reason, this is disabled by default. 2681 * 2682 * Module: library/ecjpake.c 2683 * Caller: 2684 * 2685 * This module is used by the following key exchanges: 2686 * ECJPAKE 2687 * 2688 * Requires: MBEDTLS_ECP_C, MBEDTLS_MD_C 2689 */ 2690 //#define MBEDTLS_ECJPAKE_C 2691 2692 /** 2693 * \def MBEDTLS_ECP_C 2694 * 2695 * Enable the elliptic curve over GF(p) library. 2696 * 2697 * Module: library/ecp.c 2698 * Caller: library/ecdh.c 2699 * library/ecdsa.c 2700 * library/ecjpake.c 2701 * 2702 * Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED 2703 */ 2704 #define MBEDTLS_ECP_C 2705 2706 /** 2707 * \def MBEDTLS_ENTROPY_C 2708 * 2709 * Enable the platform-specific entropy code. 2710 * 2711 * Module: library/entropy.c 2712 * Caller: 2713 * 2714 * Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C 2715 * 2716 * This module provides a generic entropy pool 2717 */ 2718 #define MBEDTLS_ENTROPY_C 2719 2720 /** 2721 * \def MBEDTLS_ERROR_C 2722 * 2723 * Enable error code to error string conversion. 2724 * 2725 * Module: library/error.c 2726 * Caller: 2727 * 2728 * This module enables mbedtls_strerror(). 2729 */ 2730 #define MBEDTLS_ERROR_C 2731 2732 /** 2733 * \def MBEDTLS_GCM_C 2734 * 2735 * Enable the Galois/Counter Mode (GCM). 2736 * 2737 * Module: library/gcm.c 2738 * 2739 * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or MBEDTLS_ARIA_C 2740 * 2741 * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other 2742 * requisites are enabled as well. 2743 */ 2744 #define MBEDTLS_GCM_C 2745 2746 /** 2747 * \def MBEDTLS_HAVEGE_C 2748 * 2749 * Enable the HAVEGE random generator. 2750 * 2751 * Warning: the HAVEGE random generator is not suitable for virtualized 2752 * environments 2753 * 2754 * Warning: the HAVEGE random generator is dependent on timing and specific 2755 * processor traits. It is therefore not advised to use HAVEGE as 2756 * your applications primary random generator or primary entropy pool 2757 * input. As a secondary input to your entropy pool, it IS able add 2758 * the (limited) extra entropy it provides. 2759 * 2760 * Module: library/havege.c 2761 * Caller: 2762 * 2763 * Requires: MBEDTLS_TIMING_C 2764 * 2765 * Uncomment to enable the HAVEGE random generator. 2766 */ 2767 //#define MBEDTLS_HAVEGE_C 2768 2769 /** 2770 * \def MBEDTLS_HKDF_C 2771 * 2772 * Enable the HKDF algorithm (RFC 5869). 2773 * 2774 * Module: library/hkdf.c 2775 * Caller: 2776 * 2777 * Requires: MBEDTLS_MD_C 2778 * 2779 * This module adds support for the Hashed Message Authentication Code 2780 * (HMAC)-based key derivation function (HKDF). 2781 */ 2782 #define MBEDTLS_HKDF_C 2783 2784 /** 2785 * \def MBEDTLS_HMAC_DRBG_C 2786 * 2787 * Enable the HMAC_DRBG random generator. 2788 * 2789 * Module: library/hmac_drbg.c 2790 * Caller: 2791 * 2792 * Requires: MBEDTLS_MD_C 2793 * 2794 * Uncomment to enable the HMAC_DRBG random number geerator. 2795 */ 2796 #define MBEDTLS_HMAC_DRBG_C 2797 2798 /** 2799 * \def MBEDTLS_NIST_KW_C 2800 * 2801 * Enable the Key Wrapping mode for 128-bit block ciphers, 2802 * as defined in NIST SP 800-38F. Only KW and KWP modes 2803 * are supported. At the moment, only AES is approved by NIST. 2804 * 2805 * Module: library/nist_kw.c 2806 * 2807 * Requires: MBEDTLS_AES_C and MBEDTLS_CIPHER_C 2808 */ 2809 //#define MBEDTLS_NIST_KW_C 2810 2811 /** 2812 * \def MBEDTLS_MD_C 2813 * 2814 * Enable the generic message digest layer. 2815 * 2816 * Module: library/md.c 2817 * Caller: 2818 * 2819 * Uncomment to enable generic message digest wrappers. 2820 */ 2821 #define MBEDTLS_MD_C 2822 2823 /** 2824 * \def MBEDTLS_MD2_C 2825 * 2826 * Enable the MD2 hash algorithm. 2827 * 2828 * Module: library/md2.c 2829 * Caller: 2830 * 2831 * Uncomment to enable support for (rare) MD2-signed X.509 certs. 2832 * 2833 * \warning MD2 is considered a weak message digest and its use constitutes a 2834 * security risk. If possible, we recommend avoiding dependencies on 2835 * it, and considering stronger message digests instead. 2836 * 2837 */ 2838 //#define MBEDTLS_MD2_C 2839 2840 /** 2841 * \def MBEDTLS_MD4_C 2842 * 2843 * Enable the MD4 hash algorithm. 2844 * 2845 * Module: library/md4.c 2846 * Caller: 2847 * 2848 * Uncomment to enable support for (rare) MD4-signed X.509 certs. 2849 * 2850 * \warning MD4 is considered a weak message digest and its use constitutes a 2851 * security risk. If possible, we recommend avoiding dependencies on 2852 * it, and considering stronger message digests instead. 2853 * 2854 */ 2855 //#define MBEDTLS_MD4_C 2856 2857 /** 2858 * \def MBEDTLS_MD5_C 2859 * 2860 * Enable the MD5 hash algorithm. 2861 * 2862 * Module: library/md5.c 2863 * Caller: library/md.c 2864 * library/pem.c 2865 * library/ssl_tls.c 2866 * 2867 * This module is required for SSL/TLS up to version 1.1, and for TLS 1.2 2868 * depending on the handshake parameters. Further, it is used for checking 2869 * MD5-signed certificates, and for PBKDF1 when decrypting PEM-encoded 2870 * encrypted keys. 2871 * 2872 * \warning MD5 is considered a weak message digest and its use constitutes a 2873 * security risk. If possible, we recommend avoiding dependencies on 2874 * it, and considering stronger message digests instead. 2875 * 2876 */ 2877 #define MBEDTLS_MD5_C 2878 2879 /** 2880 * \def MBEDTLS_MEMORY_BUFFER_ALLOC_C 2881 * 2882 * Enable the buffer allocator implementation that makes use of a (stack) 2883 * based buffer to 'allocate' dynamic memory. (replaces calloc() and free() 2884 * calls) 2885 * 2886 * Module: library/memory_buffer_alloc.c 2887 * 2888 * Requires: MBEDTLS_PLATFORM_C 2889 * MBEDTLS_PLATFORM_MEMORY (to use it within mbed TLS) 2890 * 2891 * Enable this module to enable the buffer memory allocator. 2892 */ 2893 //#define MBEDTLS_MEMORY_BUFFER_ALLOC_C 2894 2895 /** 2896 * \def MBEDTLS_NET_C 2897 * 2898 * Enable the TCP and UDP over IPv6/IPv4 networking routines. 2899 * 2900 * \note This module only works on POSIX/Unix (including Linux, BSD and OS X) 2901 * and Windows. For other platforms, you'll want to disable it, and write your 2902 * own networking callbacks to be passed to \c mbedtls_ssl_set_bio(). 2903 * 2904 * \note See also our Knowledge Base article about porting to a new 2905 * environment: 2906 * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS 2907 * 2908 * Module: library/net_sockets.c 2909 * 2910 * This module provides networking routines. 2911 */ 2912 #define MBEDTLS_NET_C 2913 2914 /** 2915 * \def MBEDTLS_OID_C 2916 * 2917 * Enable the OID database. 2918 * 2919 * Module: library/oid.c 2920 * Caller: library/asn1write.c 2921 * library/pkcs5.c 2922 * library/pkparse.c 2923 * library/pkwrite.c 2924 * library/rsa.c 2925 * library/x509.c 2926 * library/x509_create.c 2927 * library/x509_crl.c 2928 * library/x509_crt.c 2929 * library/x509_csr.c 2930 * library/x509write_crt.c 2931 * library/x509write_csr.c 2932 * 2933 * This modules translates between OIDs and internal values. 2934 */ 2935 #define MBEDTLS_OID_C 2936 2937 /** 2938 * \def MBEDTLS_PADLOCK_C 2939 * 2940 * Enable VIA Padlock support on x86. 2941 * 2942 * Module: library/padlock.c 2943 * Caller: library/aes.c 2944 * 2945 * Requires: MBEDTLS_HAVE_ASM 2946 * 2947 * This modules adds support for the VIA PadLock on x86. 2948 */ 2949 #define MBEDTLS_PADLOCK_C 2950 2951 /** 2952 * \def MBEDTLS_PEM_PARSE_C 2953 * 2954 * Enable PEM decoding / parsing. 2955 * 2956 * Module: library/pem.c 2957 * Caller: library/dhm.c 2958 * library/pkparse.c 2959 * library/x509_crl.c 2960 * library/x509_crt.c 2961 * library/x509_csr.c 2962 * 2963 * Requires: MBEDTLS_BASE64_C 2964 * 2965 * This modules adds support for decoding / parsing PEM files. 2966 */ 2967 #define MBEDTLS_PEM_PARSE_C 2968 2969 /** 2970 * \def MBEDTLS_PEM_WRITE_C 2971 * 2972 * Enable PEM encoding / writing. 2973 * 2974 * Module: library/pem.c 2975 * Caller: library/pkwrite.c 2976 * library/x509write_crt.c 2977 * library/x509write_csr.c 2978 * 2979 * Requires: MBEDTLS_BASE64_C 2980 * 2981 * This modules adds support for encoding / writing PEM files. 2982 */ 2983 #define MBEDTLS_PEM_WRITE_C 2984 2985 /** 2986 * \def MBEDTLS_PK_C 2987 * 2988 * Enable the generic public (asymetric) key layer. 2989 * 2990 * Module: library/pk.c 2991 * Caller: library/ssl_tls.c 2992 * library/ssl_cli.c 2993 * library/ssl_srv.c 2994 * 2995 * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C 2996 * 2997 * Uncomment to enable generic public key wrappers. 2998 */ 2999 #define MBEDTLS_PK_C 3000 3001 /** 3002 * \def MBEDTLS_PK_PARSE_C 3003 * 3004 * Enable the generic public (asymetric) key parser. 3005 * 3006 * Module: library/pkparse.c 3007 * Caller: library/x509_crt.c 3008 * library/x509_csr.c 3009 * 3010 * Requires: MBEDTLS_PK_C 3011 * 3012 * Uncomment to enable generic public key parse functions. 3013 */ 3014 #define MBEDTLS_PK_PARSE_C 3015 3016 /** 3017 * \def MBEDTLS_PK_WRITE_C 3018 * 3019 * Enable the generic public (asymetric) key writer. 3020 * 3021 * Module: library/pkwrite.c 3022 * Caller: library/x509write.c 3023 * 3024 * Requires: MBEDTLS_PK_C 3025 * 3026 * Uncomment to enable generic public key write functions. 3027 */ 3028 #define MBEDTLS_PK_WRITE_C 3029 3030 /** 3031 * \def MBEDTLS_PKCS5_C 3032 * 3033 * Enable PKCS#5 functions. 3034 * 3035 * Module: library/pkcs5.c 3036 * 3037 * Requires: MBEDTLS_MD_C 3038 * 3039 * This module adds support for the PKCS#5 functions. 3040 */ 3041 #define MBEDTLS_PKCS5_C 3042 3043 /** 3044 * \def MBEDTLS_PKCS11_C 3045 * 3046 * Enable wrapper for PKCS#11 smartcard support via the pkcs11-helper library. 3047 * 3048 * \deprecated This option is deprecated and will be removed in a future 3049 * version of Mbed TLS. 3050 * 3051 * Module: library/pkcs11.c 3052 * Caller: library/pk.c 3053 * 3054 * Requires: MBEDTLS_PK_C 3055 * 3056 * This module enables SSL/TLS PKCS #11 smartcard support. 3057 * Requires the presence of the PKCS#11 helper library (libpkcs11-helper) 3058 */ 3059 //#define MBEDTLS_PKCS11_C 3060 3061 /** 3062 * \def MBEDTLS_PKCS12_C 3063 * 3064 * Enable PKCS#12 PBE functions. 3065 * Adds algorithms for parsing PKCS#8 encrypted private keys 3066 * 3067 * Module: library/pkcs12.c 3068 * Caller: library/pkparse.c 3069 * 3070 * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C, MBEDTLS_MD_C 3071 * Can use: MBEDTLS_ARC4_C 3072 * 3073 * This module enables PKCS#12 functions. 3074 */ 3075 #define MBEDTLS_PKCS12_C 3076 3077 /** 3078 * \def MBEDTLS_PLATFORM_C 3079 * 3080 * Enable the platform abstraction layer that allows you to re-assign 3081 * functions like calloc(), free(), snprintf(), printf(), fprintf(), exit(). 3082 * 3083 * Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT 3084 * or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned 3085 * above to be specified at runtime or compile time respectively. 3086 * 3087 * \note This abstraction layer must be enabled on Windows (including MSYS2) 3088 * as other module rely on it for a fixed snprintf implementation. 3089 * 3090 * Module: library/platform.c 3091 * Caller: Most other .c files 3092 * 3093 * This module enables abstraction of common (libc) functions. 3094 */ 3095 #define MBEDTLS_PLATFORM_C 3096 3097 /** 3098 * \def MBEDTLS_POLY1305_C 3099 * 3100 * Enable the Poly1305 MAC algorithm. 3101 * 3102 * Module: library/poly1305.c 3103 * Caller: library/chachapoly.c 3104 */ 3105 #define MBEDTLS_POLY1305_C 3106 3107 /** 3108 * \def MBEDTLS_PSA_CRYPTO_C 3109 * 3110 * Enable the Platform Security Architecture cryptography API. 3111 * 3112 * \warning The PSA Crypto API is still beta status. While you're welcome to 3113 * experiment using it, incompatible API changes are still possible, and some 3114 * parts may not have reached the same quality as the rest of Mbed TLS yet. 3115 * 3116 * Module: library/psa_crypto.c 3117 * 3118 * Requires: MBEDTLS_CTR_DRBG_C, MBEDTLS_ENTROPY_C 3119 * 3120 */ 3121 #define MBEDTLS_PSA_CRYPTO_C 3122 3123 /** 3124 * \def MBEDTLS_PSA_CRYPTO_SE_C 3125 * 3126 * Enable secure element support in the Platform Security Architecture 3127 * cryptography API. 3128 * 3129 * \warning This feature is not yet suitable for production. It is provided 3130 * for API evaluation and testing purposes only. 3131 * 3132 * Module: library/psa_crypto_se.c 3133 * 3134 * Requires: MBEDTLS_PSA_CRYPTO_C, MBEDTLS_PSA_CRYPTO_STORAGE_C 3135 * 3136 */ 3137 //#define MBEDTLS_PSA_CRYPTO_SE_C 3138 3139 /** 3140 * \def MBEDTLS_PSA_CRYPTO_STORAGE_C 3141 * 3142 * Enable the Platform Security Architecture persistent key storage. 3143 * 3144 * Module: library/psa_crypto_storage.c 3145 * 3146 * Requires: MBEDTLS_PSA_CRYPTO_C, 3147 * either MBEDTLS_PSA_ITS_FILE_C or a native implementation of 3148 * the PSA ITS interface 3149 */ 3150 #define MBEDTLS_PSA_CRYPTO_STORAGE_C 3151 3152 /** 3153 * \def MBEDTLS_PSA_ITS_FILE_C 3154 * 3155 * Enable the emulation of the Platform Security Architecture 3156 * Internal Trusted Storage (PSA ITS) over files. 3157 * 3158 * Module: library/psa_its_file.c 3159 * 3160 * Requires: MBEDTLS_FS_IO 3161 */ 3162 #define MBEDTLS_PSA_ITS_FILE_C 3163 3164 /** 3165 * \def MBEDTLS_RIPEMD160_C 3166 * 3167 * Enable the RIPEMD-160 hash algorithm. 3168 * 3169 * Module: library/ripemd160.c 3170 * Caller: library/md.c 3171 * 3172 */ 3173 #define MBEDTLS_RIPEMD160_C 3174 3175 /** 3176 * \def MBEDTLS_RSA_C 3177 * 3178 * Enable the RSA public-key cryptosystem. 3179 * 3180 * Module: library/rsa.c 3181 * library/rsa_internal.c 3182 * Caller: library/ssl_cli.c 3183 * library/ssl_srv.c 3184 * library/ssl_tls.c 3185 * library/x509.c 3186 * 3187 * This module is used by the following key exchanges: 3188 * RSA, DHE-RSA, ECDHE-RSA, RSA-PSK 3189 * 3190 * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C 3191 */ 3192 #define MBEDTLS_RSA_C 3193 3194 /** 3195 * \def MBEDTLS_SHA1_C 3196 * 3197 * Enable the SHA1 cryptographic hash algorithm. 3198 * 3199 * Module: library/sha1.c 3200 * Caller: library/md.c 3201 * library/ssl_cli.c 3202 * library/ssl_srv.c 3203 * library/ssl_tls.c 3204 * library/x509write_crt.c 3205 * 3206 * This module is required for SSL/TLS up to version 1.1, for TLS 1.2 3207 * depending on the handshake parameters, and for SHA1-signed certificates. 3208 * 3209 * \warning SHA-1 is considered a weak message digest and its use constitutes 3210 * a security risk. If possible, we recommend avoiding dependencies 3211 * on it, and considering stronger message digests instead. 3212 * 3213 */ 3214 #define MBEDTLS_SHA1_C 3215 3216 /** 3217 * \def MBEDTLS_SHA256_C 3218 * 3219 * Enable the SHA-224 and SHA-256 cryptographic hash algorithms. 3220 * 3221 * Module: library/sha256.c 3222 * Caller: library/entropy.c 3223 * library/md.c 3224 * library/ssl_cli.c 3225 * library/ssl_srv.c 3226 * library/ssl_tls.c 3227 * 3228 * This module adds support for SHA-224 and SHA-256. 3229 * This module is required for the SSL/TLS 1.2 PRF function. 3230 */ 3231 #define MBEDTLS_SHA256_C 3232 3233 /** 3234 * \def MBEDTLS_SHA512_C 3235 * 3236 * Enable the SHA-384 and SHA-512 cryptographic hash algorithms. 3237 * 3238 * Module: library/sha512.c 3239 * Caller: library/entropy.c 3240 * library/md.c 3241 * library/ssl_cli.c 3242 * library/ssl_srv.c 3243 * 3244 * This module adds support for SHA-384 and SHA-512. 3245 */ 3246 #define MBEDTLS_SHA512_C 3247 3248 /** 3249 * \def MBEDTLS_SSL_CACHE_C 3250 * 3251 * Enable simple SSL cache implementation. 3252 * 3253 * Module: library/ssl_cache.c 3254 * Caller: 3255 * 3256 * Requires: MBEDTLS_SSL_CACHE_C 3257 */ 3258 #define MBEDTLS_SSL_CACHE_C 3259 3260 /** 3261 * \def MBEDTLS_SSL_COOKIE_C 3262 * 3263 * Enable basic implementation of DTLS cookies for hello verification. 3264 * 3265 * Module: library/ssl_cookie.c 3266 * Caller: 3267 */ 3268 #define MBEDTLS_SSL_COOKIE_C 3269 3270 /** 3271 * \def MBEDTLS_SSL_TICKET_C 3272 * 3273 * Enable an implementation of TLS server-side callbacks for session tickets. 3274 * 3275 * Module: library/ssl_ticket.c 3276 * Caller: 3277 * 3278 * Requires: MBEDTLS_CIPHER_C 3279 */ 3280 #define MBEDTLS_SSL_TICKET_C 3281 3282 /** 3283 * \def MBEDTLS_SSL_CLI_C 3284 * 3285 * Enable the SSL/TLS client code. 3286 * 3287 * Module: library/ssl_cli.c 3288 * Caller: 3289 * 3290 * Requires: MBEDTLS_SSL_TLS_C 3291 * 3292 * This module is required for SSL/TLS client support. 3293 */ 3294 #define MBEDTLS_SSL_CLI_C 3295 3296 /** 3297 * \def MBEDTLS_SSL_SRV_C 3298 * 3299 * Enable the SSL/TLS server code. 3300 * 3301 * Module: library/ssl_srv.c 3302 * Caller: 3303 * 3304 * Requires: MBEDTLS_SSL_TLS_C 3305 * 3306 * This module is required for SSL/TLS server support. 3307 */ 3308 #define MBEDTLS_SSL_SRV_C 3309 3310 /** 3311 * \def MBEDTLS_SSL_TLS_C 3312 * 3313 * Enable the generic SSL/TLS code. 3314 * 3315 * Module: library/ssl_tls.c 3316 * Caller: library/ssl_cli.c 3317 * library/ssl_srv.c 3318 * 3319 * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C 3320 * and at least one of the MBEDTLS_SSL_PROTO_XXX defines 3321 * 3322 * This module is required for SSL/TLS. 3323 */ 3324 #define MBEDTLS_SSL_TLS_C 3325 3326 /** 3327 * \def MBEDTLS_THREADING_C 3328 * 3329 * Enable the threading abstraction layer. 3330 * By default mbed TLS assumes it is used in a non-threaded environment or that 3331 * contexts are not shared between threads. If you do intend to use contexts 3332 * between threads, you will need to enable this layer to prevent race 3333 * conditions. See also our Knowledge Base article about threading: 3334 * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading 3335 * 3336 * Module: library/threading.c 3337 * 3338 * This allows different threading implementations (self-implemented or 3339 * provided). 3340 * 3341 * You will have to enable either MBEDTLS_THREADING_ALT or 3342 * MBEDTLS_THREADING_PTHREAD. 3343 * 3344 * Enable this layer to allow use of mutexes within mbed TLS 3345 */ 3346 //#define MBEDTLS_THREADING_C 3347 3348 /** 3349 * \def MBEDTLS_TIMING_C 3350 * 3351 * Enable the semi-portable timing interface. 3352 * 3353 * \note The provided implementation only works on POSIX/Unix (including Linux, 3354 * BSD and OS X) and Windows. On other platforms, you can either disable that 3355 * module and provide your own implementations of the callbacks needed by 3356 * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide 3357 * your own implementation of the whole module by setting 3358 * \c MBEDTLS_TIMING_ALT in the current file. 3359 * 3360 * \note See also our Knowledge Base article about porting to a new 3361 * environment: 3362 * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS 3363 * 3364 * Module: library/timing.c 3365 * Caller: library/havege.c 3366 * 3367 * This module is used by the HAVEGE random number generator. 3368 */ 3369 #define MBEDTLS_TIMING_C 3370 3371 /** 3372 * \def MBEDTLS_VERSION_C 3373 * 3374 * Enable run-time version information. 3375 * 3376 * Module: library/version.c 3377 * 3378 * This module provides run-time version information. 3379 */ 3380 #define MBEDTLS_VERSION_C 3381 3382 /** 3383 * \def MBEDTLS_X509_USE_C 3384 * 3385 * Enable X.509 core for using certificates. 3386 * 3387 * Module: library/x509.c 3388 * Caller: library/x509_crl.c 3389 * library/x509_crt.c 3390 * library/x509_csr.c 3391 * 3392 * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, 3393 * MBEDTLS_PK_PARSE_C 3394 * 3395 * This module is required for the X.509 parsing modules. 3396 */ 3397 #define MBEDTLS_X509_USE_C 3398 3399 /** 3400 * \def MBEDTLS_X509_CRT_PARSE_C 3401 * 3402 * Enable X.509 certificate parsing. 3403 * 3404 * Module: library/x509_crt.c 3405 * Caller: library/ssl_cli.c 3406 * library/ssl_srv.c 3407 * library/ssl_tls.c 3408 * 3409 * Requires: MBEDTLS_X509_USE_C 3410 * 3411 * This module is required for X.509 certificate parsing. 3412 */ 3413 #define MBEDTLS_X509_CRT_PARSE_C 3414 3415 /** 3416 * \def MBEDTLS_X509_CRL_PARSE_C 3417 * 3418 * Enable X.509 CRL parsing. 3419 * 3420 * Module: library/x509_crl.c 3421 * Caller: library/x509_crt.c 3422 * 3423 * Requires: MBEDTLS_X509_USE_C 3424 * 3425 * This module is required for X.509 CRL parsing. 3426 */ 3427 #define MBEDTLS_X509_CRL_PARSE_C 3428 3429 /** 3430 * \def MBEDTLS_X509_CSR_PARSE_C 3431 * 3432 * Enable X.509 Certificate Signing Request (CSR) parsing. 3433 * 3434 * Module: library/x509_csr.c 3435 * Caller: library/x509_crt_write.c 3436 * 3437 * Requires: MBEDTLS_X509_USE_C 3438 * 3439 * This module is used for reading X.509 certificate request. 3440 */ 3441 #define MBEDTLS_X509_CSR_PARSE_C 3442 3443 /** 3444 * \def MBEDTLS_X509_CREATE_C 3445 * 3446 * Enable X.509 core for creating certificates. 3447 * 3448 * Module: library/x509_create.c 3449 * 3450 * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C 3451 * 3452 * This module is the basis for creating X.509 certificates and CSRs. 3453 */ 3454 #define MBEDTLS_X509_CREATE_C 3455 3456 /** 3457 * \def MBEDTLS_X509_CRT_WRITE_C 3458 * 3459 * Enable creating X.509 certificates. 3460 * 3461 * Module: library/x509_crt_write.c 3462 * 3463 * Requires: MBEDTLS_X509_CREATE_C 3464 * 3465 * This module is required for X.509 certificate creation. 3466 */ 3467 #define MBEDTLS_X509_CRT_WRITE_C 3468 3469 /** 3470 * \def MBEDTLS_X509_CSR_WRITE_C 3471 * 3472 * Enable creating X.509 Certificate Signing Requests (CSR). 3473 * 3474 * Module: library/x509_csr_write.c 3475 * 3476 * Requires: MBEDTLS_X509_CREATE_C 3477 * 3478 * This module is required for X.509 certificate request writing. 3479 */ 3480 #define MBEDTLS_X509_CSR_WRITE_C 3481 3482 /** 3483 * \def MBEDTLS_XTEA_C 3484 * 3485 * Enable the XTEA block cipher. 3486 * 3487 * Module: library/xtea.c 3488 * Caller: 3489 */ 3490 #define MBEDTLS_XTEA_C 3491 3492 /* \} name SECTION: mbed TLS modules */ 3493 3494 /** 3495 * \name SECTION: Module configuration options 3496 * 3497 * This section allows for the setting of module specific sizes and 3498 * configuration options. The default values are already present in the 3499 * relevant header files and should suffice for the regular use cases. 3500 * 3501 * Our advice is to enable options and change their values here 3502 * only if you have a good reason and know the consequences. 3503 * 3504 * Please check the respective header file for documentation on these 3505 * parameters (to prevent duplicate documentation). 3506 * \{ 3507 */ 3508 3509 /* MPI / BIGNUM options */ 3510 //#define MBEDTLS_MPI_WINDOW_SIZE 6 /**< Maximum window size used. */ 3511 //#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */ 3512 3513 /* CTR_DRBG options */ 3514 //#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */ 3515 //#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ 3516 //#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ 3517 //#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ 3518 //#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ 3519 3520 /* HMAC_DRBG options */ 3521 //#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ 3522 //#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ 3523 //#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ 3524 //#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ 3525 3526 /* ECP options */ 3527 //#define MBEDTLS_ECP_MAX_BITS 521 /**< Maximum bit size of groups */ 3528 //#define MBEDTLS_ECP_WINDOW_SIZE 6 /**< Maximum window size used */ 3529 //#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up */ 3530 3531 /* Entropy options */ 3532 //#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */ 3533 //#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */ 3534 //#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */ 3535 3536 /* Memory buffer allocator options */ 3537 //#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */ 3538 3539 /* Platform options */ 3540 //#define MBEDTLS_PLATFORM_STD_MEM_HDR <stdlib.h> /**< Header to include if MBEDTLS_PLATFORM_NO_STD_FUNCTIONS is defined. Don't define if no header is needed. */ 3541 //#define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< Default allocator to use, can be undefined */ 3542 //#define MBEDTLS_PLATFORM_STD_FREE free /**< Default free to use, can be undefined */ 3543 //#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use, can be undefined */ 3544 //#define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ 3545 //#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use, can be undefined */ 3546 //#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use, can be undefined */ 3547 /* Note: your snprintf must correctly zero-terminate the buffer! */ 3548 //#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use, can be undefined */ 3549 //#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS 0 /**< Default exit value to use, can be undefined */ 3550 //#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE 1 /**< Default exit value to use, can be undefined */ 3551 //#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ 3552 //#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ 3553 //#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" /**< Seed file to read/write with default implementation */ 3554 3555 /* To Use Function Macros MBEDTLS_PLATFORM_C must be enabled */ 3556 /* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */ 3557 //#define MBEDTLS_PLATFORM_CALLOC_MACRO calloc /**< Default allocator macro to use, can be undefined */ 3558 //#define MBEDTLS_PLATFORM_FREE_MACRO free /**< Default free macro to use, can be undefined */ 3559 //#define MBEDTLS_PLATFORM_EXIT_MACRO exit /**< Default exit macro to use, can be undefined */ 3560 //#define MBEDTLS_PLATFORM_TIME_MACRO time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ 3561 //#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ 3562 //#define MBEDTLS_PLATFORM_FPRINTF_MACRO fprintf /**< Default fprintf macro to use, can be undefined */ 3563 //#define MBEDTLS_PLATFORM_PRINTF_MACRO printf /**< Default printf macro to use, can be undefined */ 3564 /* Note: your snprintf must correctly zero-terminate the buffer! */ 3565 //#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf /**< Default snprintf macro to use, can be undefined */ 3566 //#define MBEDTLS_PLATFORM_VSNPRINTF_MACRO vsnprintf /**< Default vsnprintf macro to use, can be undefined */ 3567 //#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ 3568 //#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ 3569 3570 /** 3571 * \brief This macro is invoked by the library when an invalid parameter 3572 * is detected that is only checked with #MBEDTLS_CHECK_PARAMS 3573 * (see the documentation of that option for context). 3574 * 3575 * When you leave this undefined here, the library provides 3576 * a default definition. If the macro #MBEDTLS_CHECK_PARAMS_ASSERT 3577 * is defined, the default definition is `assert(cond)`, 3578 * otherwise the default definition calls a function 3579 * mbedtls_param_failed(). This function is declared in 3580 * `platform_util.h` for the benefit of the library, but 3581 * you need to define in your application. 3582 * 3583 * When you define this here, this replaces the default 3584 * definition in platform_util.h (which no longer declares the 3585 * function mbedtls_param_failed()) and it is your responsibility 3586 * to make sure this macro expands to something suitable (in 3587 * particular, that all the necessary declarations are visible 3588 * from within the library - you can ensure that by providing 3589 * them in this file next to the macro definition). 3590 * If you define this macro to call `assert`, also define 3591 * #MBEDTLS_CHECK_PARAMS_ASSERT so that library source files 3592 * include `<assert.h>`. 3593 * 3594 * Note that you may define this macro to expand to nothing, in 3595 * which case you don't have to worry about declarations or 3596 * definitions. However, you will then be notified about invalid 3597 * parameters only in non-void functions, and void function will 3598 * just silently return early on invalid parameters, which 3599 * partially negates the benefits of enabling 3600 * #MBEDTLS_CHECK_PARAMS in the first place, so is discouraged. 3601 * 3602 * \param cond The expression that should evaluate to true, but doesn't. 3603 */ 3604 //#define MBEDTLS_PARAM_FAILED( cond ) assert( cond ) 3605 3606 /* SSL Cache options */ 3607 //#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /**< 1 day */ 3608 //#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /**< Maximum entries in cache */ 3609 3610 /* SSL options */ 3611 3612 /** \def MBEDTLS_SSL_MAX_CONTENT_LEN 3613 * 3614 * Maximum length (in bytes) of incoming and outgoing plaintext fragments. 3615 * 3616 * This determines the size of both the incoming and outgoing TLS I/O buffers 3617 * in such a way that both are capable of holding the specified amount of 3618 * plaintext data, regardless of the protection mechanism used. 3619 * 3620 * To configure incoming and outgoing I/O buffers separately, use 3621 * #MBEDTLS_SSL_IN_CONTENT_LEN and #MBEDTLS_SSL_OUT_CONTENT_LEN, 3622 * which overwrite the value set by this option. 3623 * 3624 * \note When using a value less than the default of 16KB on the client, it is 3625 * recommended to use the Maximum Fragment Length (MFL) extension to 3626 * inform the server about this limitation. On the server, there 3627 * is no supported, standardized way of informing the client about 3628 * restriction on the maximum size of incoming messages, and unless 3629 * the limitation has been communicated by other means, it is recommended 3630 * to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN 3631 * while keeping the default value of 16KB for the incoming buffer. 3632 * 3633 * Uncomment to set the maximum plaintext size of both 3634 * incoming and outgoing I/O buffers. 3635 */ 3636 //#define MBEDTLS_SSL_MAX_CONTENT_LEN 16384 3637 3638 /** \def MBEDTLS_SSL_IN_CONTENT_LEN 3639 * 3640 * Maximum length (in bytes) of incoming plaintext fragments. 3641 * 3642 * This determines the size of the incoming TLS I/O buffer in such a way 3643 * that it is capable of holding the specified amount of plaintext data, 3644 * regardless of the protection mechanism used. 3645 * 3646 * If this option is undefined, it inherits its value from 3647 * #MBEDTLS_SSL_MAX_CONTENT_LEN. 3648 * 3649 * \note When using a value less than the default of 16KB on the client, it is 3650 * recommended to use the Maximum Fragment Length (MFL) extension to 3651 * inform the server about this limitation. On the server, there 3652 * is no supported, standardized way of informing the client about 3653 * restriction on the maximum size of incoming messages, and unless 3654 * the limitation has been communicated by other means, it is recommended 3655 * to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN 3656 * while keeping the default value of 16KB for the incoming buffer. 3657 * 3658 * Uncomment to set the maximum plaintext size of the incoming I/O buffer 3659 * independently of the outgoing I/O buffer. 3660 */ 3661 //#define MBEDTLS_SSL_IN_CONTENT_LEN 16384 3662 3663 /** \def MBEDTLS_SSL_CID_IN_LEN_MAX 3664 * 3665 * The maximum length of CIDs used for incoming DTLS messages. 3666 * 3667 */ 3668 //#define MBEDTLS_SSL_CID_IN_LEN_MAX 32 3669 3670 /** \def MBEDTLS_SSL_CID_OUT_LEN_MAX 3671 * 3672 * The maximum length of CIDs used for outgoing DTLS messages. 3673 * 3674 */ 3675 //#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32 3676 3677 /** \def MBEDTLS_SSL_CID_PADDING_GRANULARITY 3678 * 3679 * This option controls the use of record plaintext padding 3680 * when using the Connection ID extension in DTLS 1.2. 3681 * 3682 * The padding will always be chosen so that the length of the 3683 * padded plaintext is a multiple of the value of this option. 3684 * 3685 * Note: A value of \c 1 means that no padding will be used 3686 * for outgoing records. 3687 * 3688 * Note: On systems lacking division instructions, 3689 * a power of two should be preferred. 3690 * 3691 */ 3692 //#define MBEDTLS_SSL_CID_PADDING_GRANULARITY 16 3693 3694 /** \def MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY 3695 * 3696 * This option controls the use of record plaintext padding 3697 * in TLS 1.3. 3698 * 3699 * The padding will always be chosen so that the length of the 3700 * padded plaintext is a multiple of the value of this option. 3701 * 3702 * Note: A value of \c 1 means that no padding will be used 3703 * for outgoing records. 3704 * 3705 * Note: On systems lacking division instructions, 3706 * a power of two should be preferred. 3707 */ 3708 //#define MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY 1 3709 3710 /** \def MBEDTLS_SSL_OUT_CONTENT_LEN 3711 * 3712 * Maximum length (in bytes) of outgoing plaintext fragments. 3713 * 3714 * This determines the size of the outgoing TLS I/O buffer in such a way 3715 * that it is capable of holding the specified amount of plaintext data, 3716 * regardless of the protection mechanism used. 3717 * 3718 * If this option undefined, it inherits its value from 3719 * #MBEDTLS_SSL_MAX_CONTENT_LEN. 3720 * 3721 * It is possible to save RAM by setting a smaller outward buffer, while keeping 3722 * the default inward 16384 byte buffer to conform to the TLS specification. 3723 * 3724 * The minimum required outward buffer size is determined by the handshake 3725 * protocol's usage. Handshaking will fail if the outward buffer is too small. 3726 * The specific size requirement depends on the configured ciphers and any 3727 * certificate data which is sent during the handshake. 3728 * 3729 * Uncomment to set the maximum plaintext size of the outgoing I/O buffer 3730 * independently of the incoming I/O buffer. 3731 */ 3732 //#define MBEDTLS_SSL_OUT_CONTENT_LEN 16384 3733 3734 /** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING 3735 * 3736 * Maximum number of heap-allocated bytes for the purpose of 3737 * DTLS handshake message reassembly and future message buffering. 3738 * 3739 * This should be at least 9/8 * MBEDTLSSL_IN_CONTENT_LEN 3740 * to account for a reassembled handshake message of maximum size, 3741 * together with its reassembly bitmap. 3742 * 3743 * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default) 3744 * should be sufficient for all practical situations as it allows 3745 * to reassembly a large handshake message (such as a certificate) 3746 * while buffering multiple smaller handshake messages. 3747 * 3748 */ 3749 //#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768 3750 3751 //#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME 86400 /**< Lifetime of session tickets (if enabled) */ 3752 //#define MBEDTLS_PSK_MAX_LEN 32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */ 3753 //#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ 3754 3755 /** 3756 * Complete list of ciphersuites to use, in order of preference. 3757 * 3758 * \warning No dependency checking is done on that field! This option can only 3759 * be used to restrict the set of available ciphersuites. It is your 3760 * responsibility to make sure the needed modules are active. 3761 * 3762 * Use this to save a few hundred bytes of ROM (default ordering of all 3763 * available ciphersuites) and a few to a few hundred bytes of RAM. 3764 * 3765 * The value below is only an example, not the default. 3766 */ 3767 //#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 3768 3769 /* X509 options */ 3770 //#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 /**< Maximum number of intermediate CAs in a verification chain. */ 3771 //#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */ 3772 3773 /** 3774 * Allow SHA-1 in the default TLS configuration for certificate signing. 3775 * Without this build-time option, SHA-1 support must be activated explicitly 3776 * through mbedtls_ssl_conf_cert_profile. Turning on this option is not 3777 * recommended because of it is possible to generate SHA-1 collisions, however 3778 * this may be safe for legacy infrastructure where additional controls apply. 3779 * 3780 * \warning SHA-1 is considered a weak message digest and its use constitutes 3781 * a security risk. If possible, we recommend avoiding dependencies 3782 * on it, and considering stronger message digests instead. 3783 * 3784 */ 3785 //#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES 3786 3787 /** 3788 * Allow SHA-1 in the default TLS configuration for TLS 1.2 handshake 3789 * signature and ciphersuite selection. Without this build-time option, SHA-1 3790 * support must be activated explicitly through mbedtls_ssl_conf_sig_hashes. 3791 * The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by 3792 * default. At the time of writing, there is no practical attack on the use 3793 * of SHA-1 in handshake signatures, hence this option is turned on by default 3794 * to preserve compatibility with existing peers, but the general 3795 * warning applies nonetheless: 3796 * 3797 * \warning SHA-1 is considered a weak message digest and its use constitutes 3798 * a security risk. If possible, we recommend avoiding dependencies 3799 * on it, and considering stronger message digests instead. 3800 * 3801 */ 3802 #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE 3803 3804 /** 3805 * Uncomment the macro to let mbed TLS use your alternate implementation of 3806 * mbedtls_platform_zeroize(). This replaces the default implementation in 3807 * platform_util.c. 3808 * 3809 * mbedtls_platform_zeroize() is a widely used function across the library to 3810 * zero a block of memory. The implementation is expected to be secure in the 3811 * sense that it has been written to prevent the compiler from removing calls 3812 * to mbedtls_platform_zeroize() as part of redundant code elimination 3813 * optimizations. However, it is difficult to guarantee that calls to 3814 * mbedtls_platform_zeroize() will not be optimized by the compiler as older 3815 * versions of the C language standards do not provide a secure implementation 3816 * of memset(). Therefore, MBEDTLS_PLATFORM_ZEROIZE_ALT enables users to 3817 * configure their own implementation of mbedtls_platform_zeroize(), for 3818 * example by using directives specific to their compiler, features from newer 3819 * C standards (e.g using memset_s() in C11) or calling a secure memset() from 3820 * their system (e.g explicit_bzero() in BSD). 3821 */ 3822 //#define MBEDTLS_PLATFORM_ZEROIZE_ALT 3823 3824 /** 3825 * Uncomment the macro to let Mbed TLS use your alternate implementation of 3826 * mbedtls_platform_gmtime_r(). This replaces the default implementation in 3827 * platform_util.c. 3828 * 3829 * gmtime() is not a thread-safe function as defined in the C standard. The 3830 * library will try to use safer implementations of this function, such as 3831 * gmtime_r() when available. However, if Mbed TLS cannot identify the target 3832 * system, the implementation of mbedtls_platform_gmtime_r() will default to 3833 * using the standard gmtime(). In this case, calls from the library to 3834 * gmtime() will be guarded by the global mutex mbedtls_threading_gmtime_mutex 3835 * if MBEDTLS_THREADING_C is enabled. We recommend that calls from outside the 3836 * library are also guarded with this mutex to avoid race conditions. However, 3837 * if the macro MBEDTLS_PLATFORM_GMTIME_R_ALT is defined, Mbed TLS will 3838 * unconditionally use the implementation for mbedtls_platform_gmtime_r() 3839 * supplied at compile time. 3840 */ 3841 //#define MBEDTLS_PLATFORM_GMTIME_R_ALT 3842 3843 /** 3844 * Enable the verified implementations of ECDH primitives from Project Everest 3845 * (currently only Curve25519). This feature changes the layout of ECDH 3846 * contexts and therefore is a compatibility break for applications that access 3847 * fields of a mbedtls_ecdh_context structure directly. See also 3848 * MBEDTLS_ECDH_LEGACY_CONTEXT in include/mbedtls/ecdh.h. 3849 */ 3850 //#define MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED 3851 3852 /* \} name SECTION: Customisation configuration options */ 3853 3854 /* Target and application specific configurations 3855 * 3856 * Allow user to override any previous default. 3857 * 3858 */ 3859 #if defined(MBEDTLS_USER_CONFIG_FILE) 3860 #include MBEDTLS_USER_CONFIG_FILE 3861 #endif 3862 3863 #if defined(MBEDTLS_PSA_CRYPTO_CONFIG) 3864 #include "mbedtls/config_psa.h" 3865 #endif 3866 3867 #include "mbedtls/check_config.h" 3868 3869 #endif /* MBEDTLS_CONFIG_H */ 3870