1 /** 2 * \file mbedtls_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 /** 28 * This is an optional version symbol that enables comatibility handling of 29 * config files. 30 * 31 * It is equal to the #MBEDTLS_VERSION_NUMBER of the Mbed TLS version that 32 * introduced the config format we want to be compatible with. 33 */ 34 //#define MBEDTLS_CONFIG_VERSION 0x03000000 35 36 /** 37 * \name SECTION: System support 38 * 39 * This section sets system specific settings. 40 * \{ 41 */ 42 43 /** 44 * \def MBEDTLS_HAVE_ASM 45 * 46 * The compiler has support for asm(). 47 * 48 * Requires support for asm() in compiler. 49 * 50 * Used in: 51 * library/aria.c 52 * library/bn_mul.h 53 * 54 * Required by: 55 * MBEDTLS_AESNI_C 56 * MBEDTLS_PADLOCK_C 57 * 58 * Comment to disable the use of assembly code. 59 */ 60 #define MBEDTLS_HAVE_ASM 61 62 /** 63 * \def MBEDTLS_NO_UDBL_DIVISION 64 * 65 * The platform lacks support for double-width integer division (64-bit 66 * division on a 32-bit platform, 128-bit division on a 64-bit platform). 67 * 68 * Used in: 69 * include/mbedtls/bignum.h 70 * library/bignum.c 71 * 72 * The bignum code uses double-width division to speed up some operations. 73 * Double-width division is often implemented in software that needs to 74 * be linked with the program. The presence of a double-width integer 75 * type is usually detected automatically through preprocessor macros, 76 * but the automatic detection cannot know whether the code needs to 77 * and can be linked with an implementation of division for that type. 78 * By default division is assumed to be usable if the type is present. 79 * Uncomment this option to prevent the use of double-width division. 80 * 81 * Note that division for the native integer type is always required. 82 * Furthermore, a 64-bit type is always required even on a 32-bit 83 * platform, but it need not support multiplication or division. In some 84 * cases it is also desirable to disable some double-width operations. For 85 * example, if double-width division is implemented in software, disabling 86 * it can reduce code size in some embedded targets. 87 */ 88 //#define MBEDTLS_NO_UDBL_DIVISION 89 90 /** 91 * \def MBEDTLS_NO_64BIT_MULTIPLICATION 92 * 93 * The platform lacks support for 32x32 -> 64-bit multiplication. 94 * 95 * Used in: 96 * library/poly1305.c 97 * 98 * Some parts of the library may use multiplication of two unsigned 32-bit 99 * operands with a 64-bit result in order to speed up computations. On some 100 * platforms, this is not available in hardware and has to be implemented in 101 * software, usually in a library provided by the toolchain. 102 * 103 * Sometimes it is not desirable to have to link to that library. This option 104 * removes the dependency of that library on platforms that lack a hardware 105 * 64-bit multiplier by embedding a software implementation in Mbed TLS. 106 * 107 * Note that depending on the compiler, this may decrease performance compared 108 * to using the library function provided by the toolchain. 109 */ 110 //#define MBEDTLS_NO_64BIT_MULTIPLICATION 111 112 /** 113 * \def MBEDTLS_HAVE_SSE2 114 * 115 * CPU supports SSE2 instruction set. 116 * 117 * Uncomment if the CPU supports SSE2 (IA-32 specific). 118 */ 119 //#define MBEDTLS_HAVE_SSE2 120 121 /** 122 * \def MBEDTLS_HAVE_TIME 123 * 124 * System has time.h and time(). 125 * The time does not need to be correct, only time differences are used, 126 * by contrast with MBEDTLS_HAVE_TIME_DATE 127 * 128 * Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT, 129 * MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and 130 * MBEDTLS_PLATFORM_STD_TIME. 131 * 132 * Comment if your system does not support time functions 133 */ 134 #define MBEDTLS_HAVE_TIME 135 136 /** 137 * \def MBEDTLS_HAVE_TIME_DATE 138 * 139 * System has time.h, time(), and an implementation for 140 * mbedtls_platform_gmtime_r() (see below). 141 * The time needs to be correct (not necessarily very accurate, but at least 142 * the date should be correct). This is used to verify the validity period of 143 * X.509 certificates. 144 * 145 * Comment if your system does not have a correct clock. 146 * 147 * \note mbedtls_platform_gmtime_r() is an abstraction in platform_util.h that 148 * behaves similarly to the gmtime_r() function from the C standard. Refer to 149 * the documentation for mbedtls_platform_gmtime_r() for more information. 150 * 151 * \note It is possible to configure an implementation for 152 * mbedtls_platform_gmtime_r() at compile-time by using the macro 153 * MBEDTLS_PLATFORM_GMTIME_R_ALT. 154 */ 155 #define MBEDTLS_HAVE_TIME_DATE 156 157 /** 158 * \def MBEDTLS_PLATFORM_MEMORY 159 * 160 * Enable the memory allocation layer. 161 * 162 * By default mbed TLS uses the system-provided calloc() and free(). 163 * This allows different allocators (self-implemented or provided) to be 164 * provided to the platform abstraction layer. 165 * 166 * Enabling MBEDTLS_PLATFORM_MEMORY without the 167 * MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide 168 * "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and 169 * free() function pointer at runtime. 170 * 171 * Enabling MBEDTLS_PLATFORM_MEMORY and specifying 172 * MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the 173 * alternate function at compile time. 174 * 175 * Requires: MBEDTLS_PLATFORM_C 176 * 177 * Enable this layer to allow use of alternative memory allocators. 178 */ 179 //#define MBEDTLS_PLATFORM_MEMORY 180 181 /** 182 * \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS 183 * 184 * Do not assign standard functions in the platform layer (e.g. calloc() to 185 * MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF) 186 * 187 * This makes sure there are no linking errors on platforms that do not support 188 * these functions. You will HAVE to provide alternatives, either at runtime 189 * via the platform_set_xxx() functions or at compile time by setting 190 * the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a 191 * MBEDTLS_PLATFORM_XXX_MACRO. 192 * 193 * Requires: MBEDTLS_PLATFORM_C 194 * 195 * Uncomment to prevent default assignment of standard functions in the 196 * platform layer. 197 */ 198 //#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS 199 200 /** 201 * \def MBEDTLS_PLATFORM_EXIT_ALT 202 * 203 * MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let mbed TLS support the 204 * function in the platform abstraction layer. 205 * 206 * Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, mbed TLS will 207 * provide a function "mbedtls_platform_set_printf()" that allows you to set an 208 * alternative printf function pointer. 209 * 210 * All these define require MBEDTLS_PLATFORM_C to be defined! 211 * 212 * \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows; 213 * it will be enabled automatically by check_config.h 214 * 215 * \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as 216 * MBEDTLS_PLATFORM_XXX_MACRO! 217 * 218 * Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME 219 * 220 * Uncomment a macro to enable alternate implementation of specific base 221 * platform function 222 */ 223 //#define MBEDTLS_PLATFORM_EXIT_ALT 224 //#define MBEDTLS_PLATFORM_TIME_ALT 225 //#define MBEDTLS_PLATFORM_FPRINTF_ALT 226 //#define MBEDTLS_PLATFORM_PRINTF_ALT 227 //#define MBEDTLS_PLATFORM_SNPRINTF_ALT 228 //#define MBEDTLS_PLATFORM_VSNPRINTF_ALT 229 //#define MBEDTLS_PLATFORM_NV_SEED_ALT 230 //#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT 231 232 /** 233 * \def MBEDTLS_DEPRECATED_WARNING 234 * 235 * Mark deprecated functions and features so that they generate a warning if 236 * used. Functionality deprecated in one version will usually be removed in the 237 * next version. You can enable this to help you prepare the transition to a 238 * new major version by making sure your code is not using this functionality. 239 * 240 * This only works with GCC and Clang. With other compilers, you may want to 241 * use MBEDTLS_DEPRECATED_REMOVED 242 * 243 * Uncomment to get warnings on using deprecated functions and features. 244 */ 245 //#define MBEDTLS_DEPRECATED_WARNING 246 247 /** 248 * \def MBEDTLS_DEPRECATED_REMOVED 249 * 250 * Remove deprecated functions and features so that they generate an error if 251 * used. Functionality deprecated in one version will usually be removed in the 252 * next version. You can enable this to help you prepare the transition to a 253 * new major version by making sure your code is not using this functionality. 254 * 255 * Uncomment to get errors on using deprecated functions and features. 256 */ 257 //#define MBEDTLS_DEPRECATED_REMOVED 258 259 /* \} name SECTION: System support */ 260 261 /** 262 * \name SECTION: mbed TLS feature support 263 * 264 * This section sets support for features that are or are not needed 265 * within the modules that are enabled. 266 * \{ 267 */ 268 269 /** 270 * \def MBEDTLS_TIMING_ALT 271 * 272 * Uncomment to provide your own alternate implementation for 273 * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay() 274 * 275 * Only works if you have MBEDTLS_TIMING_C enabled. 276 * 277 * You will need to provide a header "timing_alt.h" and an implementation at 278 * compile time. 279 */ 280 //#define MBEDTLS_TIMING_ALT 281 282 /** 283 * \def MBEDTLS_AES_ALT 284 * 285 * MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let mbed TLS use your 286 * alternate core implementation of a symmetric crypto, an arithmetic or hash 287 * module (e.g. platform specific assembly optimized implementations). Keep 288 * in mind that the function prototypes should remain the same. 289 * 290 * This replaces the whole module. If you only want to replace one of the 291 * functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags. 292 * 293 * Example: In case you uncomment MBEDTLS_AES_ALT, mbed TLS will no longer 294 * provide the "struct mbedtls_aes_context" definition and omit the base 295 * function declarations and implementations. "aes_alt.h" will be included from 296 * "aes.h" to include the new function definitions. 297 * 298 * Uncomment a macro to enable alternate implementation of the corresponding 299 * module. 300 * 301 * \warning MD5, DES and SHA-1 are considered weak and their 302 * use constitutes a security risk. If possible, we recommend 303 * avoiding dependencies on them, and considering stronger message 304 * digests and ciphers instead. 305 * 306 */ 307 //#define MBEDTLS_AES_ALT 308 //#define MBEDTLS_ARIA_ALT 309 //#define MBEDTLS_CAMELLIA_ALT 310 //#define MBEDTLS_CCM_ALT 311 //#define MBEDTLS_CHACHA20_ALT 312 //#define MBEDTLS_CHACHAPOLY_ALT 313 //#define MBEDTLS_CMAC_ALT 314 //#define MBEDTLS_DES_ALT 315 //#define MBEDTLS_DHM_ALT 316 //#define MBEDTLS_ECJPAKE_ALT 317 //#define MBEDTLS_GCM_ALT 318 //#define MBEDTLS_NIST_KW_ALT 319 //#define MBEDTLS_MD5_ALT 320 //#define MBEDTLS_POLY1305_ALT 321 //#define MBEDTLS_RIPEMD160_ALT 322 //#define MBEDTLS_RSA_ALT 323 //#define MBEDTLS_SHA1_ALT 324 //#define MBEDTLS_SHA256_ALT 325 //#define MBEDTLS_SHA512_ALT 326 327 /* 328 * When replacing the elliptic curve module, pleace consider, that it is 329 * implemented with two .c files: 330 * - ecp.c 331 * - ecp_curves.c 332 * You can replace them very much like all the other MBEDTLS__MODULE_NAME__ALT 333 * macros as described above. The only difference is that you have to make sure 334 * that you provide functionality for both .c files. 335 */ 336 //#define MBEDTLS_ECP_ALT 337 338 /** 339 * \def MBEDTLS_SHA256_PROCESS_ALT 340 * 341 * MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use you 342 * alternate core implementation of symmetric crypto or hash function. Keep in 343 * mind that function prototypes should remain the same. 344 * 345 * This replaces only one function. The header file from mbed TLS is still 346 * used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags. 347 * 348 * Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, mbed TLS will 349 * no longer provide the mbedtls_sha1_process() function, but it will still provide 350 * the other function (using your mbedtls_sha1_process() function) and the definition 351 * of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible 352 * with this definition. 353 * 354 * \note If you use the AES_xxx_ALT macros, then it is recommended to also set 355 * MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES 356 * tables. 357 * 358 * Uncomment a macro to enable alternate implementation of the corresponding 359 * function. 360 * 361 * \warning MD5, DES and SHA-1 are considered weak and their use 362 * constitutes a security risk. If possible, we recommend avoiding 363 * dependencies on them, and considering stronger message digests 364 * and ciphers instead. 365 * 366 * \warning If both MBEDTLS_ECDSA_SIGN_ALT and MBEDTLS_ECDSA_DETERMINISTIC are 367 * enabled, then the deterministic ECDH signature functions pass the 368 * the static HMAC-DRBG as RNG to mbedtls_ecdsa_sign(). Therefore 369 * alternative implementations should use the RNG only for generating 370 * the ephemeral key and nothing else. If this is not possible, then 371 * MBEDTLS_ECDSA_DETERMINISTIC should be disabled and an alternative 372 * implementation should be provided for mbedtls_ecdsa_sign_det_ext(). 373 * 374 */ 375 //#define MBEDTLS_MD5_PROCESS_ALT 376 //#define MBEDTLS_RIPEMD160_PROCESS_ALT 377 //#define MBEDTLS_SHA1_PROCESS_ALT 378 //#define MBEDTLS_SHA256_PROCESS_ALT 379 //#define MBEDTLS_SHA512_PROCESS_ALT 380 //#define MBEDTLS_DES_SETKEY_ALT 381 //#define MBEDTLS_DES_CRYPT_ECB_ALT 382 //#define MBEDTLS_DES3_CRYPT_ECB_ALT 383 //#define MBEDTLS_AES_SETKEY_ENC_ALT 384 //#define MBEDTLS_AES_SETKEY_DEC_ALT 385 //#define MBEDTLS_AES_ENCRYPT_ALT 386 //#define MBEDTLS_AES_DECRYPT_ALT 387 //#define MBEDTLS_ECDH_GEN_PUBLIC_ALT 388 //#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT 389 //#define MBEDTLS_ECDSA_VERIFY_ALT 390 //#define MBEDTLS_ECDSA_SIGN_ALT 391 //#define MBEDTLS_ECDSA_GENKEY_ALT 392 393 /** 394 * \def MBEDTLS_ECP_INTERNAL_ALT 395 * 396 * Expose a part of the internal interface of the Elliptic Curve Point module. 397 * 398 * MBEDTLS_ECP__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use your 399 * alternative core implementation of elliptic curve arithmetic. Keep in mind 400 * that function prototypes should remain the same. 401 * 402 * This partially replaces one function. The header file from mbed TLS is still 403 * used, in contrast to the MBEDTLS_ECP_ALT flag. The original implementation 404 * is still present and it is used for group structures not supported by the 405 * alternative. 406 * 407 * The original implementation can in addition be removed by setting the 408 * MBEDTLS_ECP_NO_FALLBACK option, in which case any function for which the 409 * corresponding MBEDTLS_ECP__FUNCTION_NAME__ALT macro is defined will not be 410 * able to fallback to curves not supported by the alternative implementation. 411 * 412 * Any of these options become available by defining MBEDTLS_ECP_INTERNAL_ALT 413 * and implementing the following functions: 414 * unsigned char mbedtls_internal_ecp_grp_capable( 415 * const mbedtls_ecp_group *grp ) 416 * int mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp ) 417 * void mbedtls_internal_ecp_free( const mbedtls_ecp_group *grp ) 418 * The mbedtls_internal_ecp_grp_capable function should return 1 if the 419 * replacement functions implement arithmetic for the given group and 0 420 * otherwise. 421 * The functions mbedtls_internal_ecp_init and mbedtls_internal_ecp_free are 422 * called before and after each point operation and provide an opportunity to 423 * implement optimized set up and tear down instructions. 424 * 425 * Example: In case you set MBEDTLS_ECP_INTERNAL_ALT and 426 * MBEDTLS_ECP_DOUBLE_JAC_ALT, mbed TLS will still provide the ecp_double_jac() 427 * function, but will use your mbedtls_internal_ecp_double_jac() if the group 428 * for the operation is supported by your implementation (i.e. your 429 * mbedtls_internal_ecp_grp_capable() function returns 1 for this group). If the 430 * group is not supported by your implementation, then the original mbed TLS 431 * implementation of ecp_double_jac() is used instead, unless this fallback 432 * behaviour is disabled by setting MBEDTLS_ECP_NO_FALLBACK (in which case 433 * ecp_double_jac() will return MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE). 434 * 435 * The function prototypes and the definition of mbedtls_ecp_group and 436 * mbedtls_ecp_point will not change based on MBEDTLS_ECP_INTERNAL_ALT, so your 437 * implementation of mbedtls_internal_ecp__function_name__ must be compatible 438 * with their definitions. 439 * 440 * Uncomment a macro to enable alternate implementation of the corresponding 441 * function. 442 */ 443 /* Required for all the functions in this section */ 444 //#define MBEDTLS_ECP_INTERNAL_ALT 445 /* Turn off software fallback for curves not supported in hardware */ 446 //#define MBEDTLS_ECP_NO_FALLBACK 447 /* Support for Weierstrass curves with Jacobi representation */ 448 //#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT 449 //#define MBEDTLS_ECP_ADD_MIXED_ALT 450 //#define MBEDTLS_ECP_DOUBLE_JAC_ALT 451 //#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT 452 //#define MBEDTLS_ECP_NORMALIZE_JAC_ALT 453 /* Support for curves with Montgomery arithmetic */ 454 //#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT 455 //#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT 456 //#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT 457 458 /** 459 * \def MBEDTLS_ENTROPY_HARDWARE_ALT 460 * 461 * Uncomment this macro to let mbed TLS use your own implementation of a 462 * hardware entropy collector. 463 * 464 * Your function must be called \c mbedtls_hardware_poll(), have the same 465 * prototype as declared in library/entropy_poll.h, and accept NULL as first 466 * argument. 467 * 468 * Uncomment to use your own hardware entropy collector. 469 */ 470 //#define MBEDTLS_ENTROPY_HARDWARE_ALT 471 472 /** 473 * \def MBEDTLS_AES_ROM_TABLES 474 * 475 * Use precomputed AES tables stored in ROM. 476 * 477 * Uncomment this macro to use precomputed AES tables stored in ROM. 478 * Comment this macro to generate AES tables in RAM at runtime. 479 * 480 * Tradeoff: Using precomputed ROM tables reduces RAM usage by ~8kb 481 * (or ~2kb if \c MBEDTLS_AES_FEWER_TABLES is used) and reduces the 482 * initialization time before the first AES operation can be performed. 483 * It comes at the cost of additional ~8kb ROM use (resp. ~2kb if \c 484 * MBEDTLS_AES_FEWER_TABLES below is used), and potentially degraded 485 * performance if ROM access is slower than RAM access. 486 * 487 * This option is independent of \c MBEDTLS_AES_FEWER_TABLES. 488 * 489 */ 490 //#define MBEDTLS_AES_ROM_TABLES 491 492 /** 493 * \def MBEDTLS_AES_FEWER_TABLES 494 * 495 * Use less ROM/RAM for AES tables. 496 * 497 * Uncommenting this macro omits 75% of the AES tables from 498 * ROM / RAM (depending on the value of \c MBEDTLS_AES_ROM_TABLES) 499 * by computing their values on the fly during operations 500 * (the tables are entry-wise rotations of one another). 501 * 502 * Tradeoff: Uncommenting this reduces the RAM / ROM footprint 503 * by ~6kb but at the cost of more arithmetic operations during 504 * runtime. Specifically, one has to compare 4 accesses within 505 * different tables to 4 accesses with additional arithmetic 506 * operations within the same table. The performance gain/loss 507 * depends on the system and memory details. 508 * 509 * This option is independent of \c MBEDTLS_AES_ROM_TABLES. 510 * 511 */ 512 //#define MBEDTLS_AES_FEWER_TABLES 513 514 /** 515 * \def MBEDTLS_CAMELLIA_SMALL_MEMORY 516 * 517 * Use less ROM for the Camellia implementation (saves about 768 bytes). 518 * 519 * Uncomment this macro to use less memory for Camellia. 520 */ 521 //#define MBEDTLS_CAMELLIA_SMALL_MEMORY 522 523 /** 524 * \def MBEDTLS_CHECK_RETURN_WARNING 525 * 526 * If this macro is defined, emit a compile-time warning if application code 527 * calls a function without checking its return value, but the return value 528 * should generally be checked in portable applications. 529 * 530 * This is only supported on platforms where #MBEDTLS_CHECK_RETURN is 531 * implemented. Otherwise this option has no effect. 532 * 533 * Uncomment to get warnings on using fallible functions without checking 534 * their return value. 535 * 536 * \note This feature is a work in progress. 537 * Warnings will be added to more functions in the future. 538 * 539 * \note A few functions are considered critical, and ignoring the return 540 * value of these functions will trigger a warning even if this 541 * macro is not defined. To completely disable return value check 542 * warnings, define #MBEDTLS_CHECK_RETURN with an empty expansion. 543 */ 544 //#define MBEDTLS_CHECK_RETURN_WARNING 545 546 /** 547 * \def MBEDTLS_CIPHER_MODE_CBC 548 * 549 * Enable Cipher Block Chaining mode (CBC) for symmetric ciphers. 550 */ 551 #define MBEDTLS_CIPHER_MODE_CBC 552 553 /** 554 * \def MBEDTLS_CIPHER_MODE_CFB 555 * 556 * Enable Cipher Feedback mode (CFB) for symmetric ciphers. 557 */ 558 #define MBEDTLS_CIPHER_MODE_CFB 559 560 /** 561 * \def MBEDTLS_CIPHER_MODE_CTR 562 * 563 * Enable Counter Block Cipher mode (CTR) for symmetric ciphers. 564 */ 565 #define MBEDTLS_CIPHER_MODE_CTR 566 567 /** 568 * \def MBEDTLS_CIPHER_MODE_OFB 569 * 570 * Enable Output Feedback mode (OFB) for symmetric ciphers. 571 */ 572 #define MBEDTLS_CIPHER_MODE_OFB 573 574 /** 575 * \def MBEDTLS_CIPHER_MODE_XTS 576 * 577 * Enable Xor-encrypt-xor with ciphertext stealing mode (XTS) for AES. 578 */ 579 #define MBEDTLS_CIPHER_MODE_XTS 580 581 /** 582 * \def MBEDTLS_CIPHER_NULL_CIPHER 583 * 584 * Enable NULL cipher. 585 * Warning: Only do so when you know what you are doing. This allows for 586 * encryption or channels without any security! 587 * 588 * To enable the following ciphersuites: 589 * MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA 590 * MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA 591 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA 592 * MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA 593 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 594 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 595 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA 596 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 597 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 598 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA 599 * MBEDTLS_TLS_RSA_WITH_NULL_SHA256 600 * MBEDTLS_TLS_RSA_WITH_NULL_SHA 601 * MBEDTLS_TLS_RSA_WITH_NULL_MD5 602 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 603 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 604 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA 605 * MBEDTLS_TLS_PSK_WITH_NULL_SHA384 606 * MBEDTLS_TLS_PSK_WITH_NULL_SHA256 607 * MBEDTLS_TLS_PSK_WITH_NULL_SHA 608 * 609 * Uncomment this macro to enable the NULL cipher and ciphersuites 610 */ 611 //#define MBEDTLS_CIPHER_NULL_CIPHER 612 613 /** 614 * \def MBEDTLS_CIPHER_PADDING_PKCS7 615 * 616 * MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for 617 * specific padding modes in the cipher layer with cipher modes that support 618 * padding (e.g. CBC) 619 * 620 * If you disable all padding modes, only full blocks can be used with CBC. 621 * 622 * Enable padding modes in the cipher layer. 623 */ 624 #define MBEDTLS_CIPHER_PADDING_PKCS7 625 #define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS 626 #define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN 627 #define MBEDTLS_CIPHER_PADDING_ZEROS 628 629 /** \def MBEDTLS_CTR_DRBG_USE_128_BIT_KEY 630 * 631 * Uncomment this macro to use a 128-bit key in the CTR_DRBG module. 632 * By default, CTR_DRBG uses a 256-bit key. 633 */ 634 //#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY 635 636 /** 637 * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED 638 * 639 * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve 640 * module. By default all supported curves are enabled. 641 * 642 * Comment macros to disable the curve and functions for it 643 */ 644 /* Short Weierstrass curves (supporting ECP, ECDH, ECDSA) */ 645 #define MBEDTLS_ECP_DP_SECP192R1_ENABLED 646 #define MBEDTLS_ECP_DP_SECP224R1_ENABLED 647 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED 648 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED 649 #define MBEDTLS_ECP_DP_SECP521R1_ENABLED 650 #define MBEDTLS_ECP_DP_SECP192K1_ENABLED 651 #define MBEDTLS_ECP_DP_SECP224K1_ENABLED 652 #define MBEDTLS_ECP_DP_SECP256K1_ENABLED 653 #define MBEDTLS_ECP_DP_BP256R1_ENABLED 654 #define MBEDTLS_ECP_DP_BP384R1_ENABLED 655 #define MBEDTLS_ECP_DP_BP512R1_ENABLED 656 /* Montgomery curves (supporting ECP) */ 657 #define MBEDTLS_ECP_DP_CURVE25519_ENABLED 658 #define MBEDTLS_ECP_DP_CURVE448_ENABLED 659 660 /** 661 * \def MBEDTLS_ECP_NIST_OPTIM 662 * 663 * Enable specific 'modulo p' routines for each NIST prime. 664 * Depending on the prime and architecture, makes operations 4 to 8 times 665 * faster on the corresponding curve. 666 * 667 * Comment this macro to disable NIST curves optimisation. 668 */ 669 #define MBEDTLS_ECP_NIST_OPTIM 670 671 /** 672 * \def MBEDTLS_ECP_RESTARTABLE 673 * 674 * Enable "non-blocking" ECC operations that can return early and be resumed. 675 * 676 * This allows various functions to pause by returning 677 * #MBEDTLS_ERR_ECP_IN_PROGRESS (or, for functions in the SSL module, 678 * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) and then be called later again in 679 * order to further progress and eventually complete their operation. This is 680 * controlled through mbedtls_ecp_set_max_ops() which limits the maximum 681 * number of ECC operations a function may perform before pausing; see 682 * mbedtls_ecp_set_max_ops() for more information. 683 * 684 * This is useful in non-threaded environments if you want to avoid blocking 685 * for too long on ECC (and, hence, X.509 or SSL/TLS) operations. 686 * 687 * Uncomment this macro to enable restartable ECC computations. 688 * 689 * \note This option only works with the default software implementation of 690 * elliptic curve functionality. It is incompatible with 691 * MBEDTLS_ECP_ALT, MBEDTLS_ECDH_XXX_ALT, MBEDTLS_ECDSA_XXX_ALT. 692 */ 693 //#define MBEDTLS_ECP_RESTARTABLE 694 695 /** 696 * \def MBEDTLS_ECDSA_DETERMINISTIC 697 * 698 * Enable deterministic ECDSA (RFC 6979). 699 * Standard ECDSA is "fragile" in the sense that lack of entropy when signing 700 * may result in a compromise of the long-term signing key. This is avoided by 701 * the deterministic variant. 702 * 703 * Requires: MBEDTLS_HMAC_DRBG_C, MBEDTLS_ECDSA_C 704 * 705 * Comment this macro to disable deterministic ECDSA. 706 */ 707 #define MBEDTLS_ECDSA_DETERMINISTIC 708 709 /** 710 * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED 711 * 712 * Enable the PSK based ciphersuite modes in SSL / TLS. 713 * 714 * This enables the following ciphersuites (if other requisites are 715 * enabled as well): 716 * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 717 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 718 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 719 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 720 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 721 * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 722 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 723 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 724 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 725 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 726 */ 727 #define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED 728 729 /** 730 * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED 731 * 732 * Enable the DHE-PSK based ciphersuite modes in SSL / TLS. 733 * 734 * Requires: MBEDTLS_DHM_C 735 * 736 * This enables the following ciphersuites (if other requisites are 737 * enabled as well): 738 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 739 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 740 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 741 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 742 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 743 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 744 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 745 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 746 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 747 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 748 * 749 * \warning Using DHE constitutes a security risk as it 750 * is not possible to validate custom DH parameters. 751 * If possible, it is recommended users should consider 752 * preferring other methods of key exchange. 753 * See dhm.h for more details. 754 * 755 */ 756 #define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED 757 758 /** 759 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED 760 * 761 * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS. 762 * 763 * Requires: MBEDTLS_ECDH_C 764 * 765 * This enables the following ciphersuites (if other requisites are 766 * enabled as well): 767 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 768 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 769 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 770 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 771 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 772 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 773 */ 774 #define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED 775 776 /** 777 * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED 778 * 779 * Enable the RSA-PSK based ciphersuite modes in SSL / TLS. 780 * 781 * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 782 * MBEDTLS_X509_CRT_PARSE_C 783 * 784 * This enables the following ciphersuites (if other requisites are 785 * enabled as well): 786 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 787 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 788 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 789 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 790 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 791 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 792 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 793 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 794 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 795 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 796 */ 797 #define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED 798 799 /** 800 * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED 801 * 802 * Enable the RSA-only based ciphersuite modes in SSL / TLS. 803 * 804 * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 805 * MBEDTLS_X509_CRT_PARSE_C 806 * 807 * This enables the following ciphersuites (if other requisites are 808 * enabled as well): 809 * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 810 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 811 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 812 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 813 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 814 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 815 * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 816 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 817 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 818 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 819 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 820 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 821 */ 822 #define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED 823 824 /** 825 * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED 826 * 827 * Enable the DHE-RSA based ciphersuite modes in SSL / TLS. 828 * 829 * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 830 * MBEDTLS_X509_CRT_PARSE_C 831 * 832 * This enables the following ciphersuites (if other requisites are 833 * enabled as well): 834 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 835 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 836 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 837 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 838 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 839 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 840 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 841 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 842 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 843 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 844 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 845 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 846 * 847 * \warning Using DHE constitutes a security risk as it 848 * is not possible to validate custom DH parameters. 849 * If possible, it is recommended users should consider 850 * preferring other methods of key exchange. 851 * See dhm.h for more details. 852 * 853 */ 854 #define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED 855 856 /** 857 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED 858 * 859 * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS. 860 * 861 * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15, 862 * MBEDTLS_X509_CRT_PARSE_C 863 * 864 * This enables the following ciphersuites (if other requisites are 865 * enabled as well): 866 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 867 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 868 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 869 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 870 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 871 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 872 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 873 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 874 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 875 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 876 */ 877 #define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED 878 879 /** 880 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED 881 * 882 * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS. 883 * 884 * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C, 885 * 886 * This enables the following ciphersuites (if other requisites are 887 * enabled as well): 888 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 889 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 890 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 891 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 892 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 893 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 894 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 895 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 896 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 897 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 898 */ 899 #define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED 900 901 /** 902 * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED 903 * 904 * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS. 905 * 906 * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C 907 * 908 * This enables the following ciphersuites (if other requisites are 909 * enabled as well): 910 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 911 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 912 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 913 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 914 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 915 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 916 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 917 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 918 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 919 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 920 */ 921 #define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED 922 923 /** 924 * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED 925 * 926 * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS. 927 * 928 * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_X509_CRT_PARSE_C 929 * 930 * This enables the following ciphersuites (if other requisites are 931 * enabled as well): 932 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 933 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 934 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 935 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 936 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 937 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 938 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 939 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 940 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 941 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 942 */ 943 #define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED 944 945 /** 946 * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED 947 * 948 * Enable the ECJPAKE based ciphersuite modes in SSL / TLS. 949 * 950 * \warning This is currently experimental. EC J-PAKE support is based on the 951 * Thread v1.0.0 specification; incompatible changes to the specification 952 * might still happen. For this reason, this is disabled by default. 953 * 954 * Requires: MBEDTLS_ECJPAKE_C 955 * MBEDTLS_SHA256_C 956 * MBEDTLS_ECP_DP_SECP256R1_ENABLED 957 * 958 * This enables the following ciphersuites (if other requisites are 959 * enabled as well): 960 * MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 961 */ 962 //#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED 963 964 /** 965 * \def MBEDTLS_PK_PARSE_EC_EXTENDED 966 * 967 * Enhance support for reading EC keys using variants of SEC1 not allowed by 968 * RFC 5915 and RFC 5480. 969 * 970 * Currently this means parsing the SpecifiedECDomain choice of EC 971 * parameters (only known groups are supported, not arbitrary domains, to 972 * avoid validation issues). 973 * 974 * Disable if you only need to support RFC 5915 + 5480 key formats. 975 */ 976 #define MBEDTLS_PK_PARSE_EC_EXTENDED 977 978 /** 979 * \def MBEDTLS_ERROR_STRERROR_DUMMY 980 * 981 * Enable a dummy error function to make use of mbedtls_strerror() in 982 * third party libraries easier when MBEDTLS_ERROR_C is disabled 983 * (no effect when MBEDTLS_ERROR_C is enabled). 984 * 985 * You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're 986 * not using mbedtls_strerror() or error_strerror() in your application. 987 * 988 * Disable if you run into name conflicts and want to really remove the 989 * mbedtls_strerror() 990 */ 991 #define MBEDTLS_ERROR_STRERROR_DUMMY 992 993 /** 994 * \def MBEDTLS_GENPRIME 995 * 996 * Enable the prime-number generation code. 997 * 998 * Requires: MBEDTLS_BIGNUM_C 999 */ 1000 #define MBEDTLS_GENPRIME 1001 1002 /** 1003 * \def MBEDTLS_FS_IO 1004 * 1005 * Enable functions that use the filesystem. 1006 */ 1007 #define MBEDTLS_FS_IO 1008 1009 /** 1010 * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES 1011 * 1012 * Do not add default entropy sources in mbedtls_entropy_init(). 1013 * 1014 * This is useful to have more control over the added entropy sources in an 1015 * application. 1016 * 1017 * Uncomment this macro to prevent loading of default entropy functions. 1018 */ 1019 //#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES 1020 1021 /** 1022 * \def MBEDTLS_NO_PLATFORM_ENTROPY 1023 * 1024 * Do not use built-in platform entropy functions. 1025 * This is useful if your platform does not support 1026 * standards like the /dev/urandom or Windows CryptoAPI. 1027 * 1028 * Uncomment this macro to disable the built-in platform entropy functions. 1029 */ 1030 //#define MBEDTLS_NO_PLATFORM_ENTROPY 1031 1032 /** 1033 * \def MBEDTLS_ENTROPY_FORCE_SHA256 1034 * 1035 * Force the entropy accumulator to use a SHA-256 accumulator instead of the 1036 * default SHA-512 based one (if both are available). 1037 * 1038 * Requires: MBEDTLS_SHA256_C 1039 * 1040 * On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option 1041 * if you have performance concerns. 1042 * 1043 * This option is only useful if both MBEDTLS_SHA256_C and 1044 * MBEDTLS_SHA512_C are defined. Otherwise the available hash module is used. 1045 */ 1046 //#define MBEDTLS_ENTROPY_FORCE_SHA256 1047 1048 /** 1049 * \def MBEDTLS_ENTROPY_NV_SEED 1050 * 1051 * Enable the non-volatile (NV) seed file-based entropy source. 1052 * (Also enables the NV seed read/write functions in the platform layer) 1053 * 1054 * This is crucial (if not required) on systems that do not have a 1055 * cryptographic entropy source (in hardware or kernel) available. 1056 * 1057 * Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C 1058 * 1059 * \note The read/write functions that are used by the entropy source are 1060 * determined in the platform layer, and can be modified at runtime and/or 1061 * compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used. 1062 * 1063 * \note If you use the default implementation functions that read a seedfile 1064 * with regular fopen(), please make sure you make a seedfile with the 1065 * proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at 1066 * least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from 1067 * and written to or you will get an entropy source error! The default 1068 * implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE 1069 * bytes from the file. 1070 * 1071 * \note The entropy collector will write to the seed file before entropy is 1072 * given to an external source, to update it. 1073 */ 1074 //#define MBEDTLS_ENTROPY_NV_SEED 1075 1076 /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER 1077 * 1078 * Enable key identifiers that encode a key owner identifier. 1079 * 1080 * The owner of a key is identified by a value of type ::mbedtls_key_owner_id_t 1081 * which is currently hard-coded to be int32_t. 1082 * 1083 * Note that this option is meant for internal use only and may be removed 1084 * without notice. It is incompatible with MBEDTLS_USE_PSA_CRYPTO. 1085 */ 1086 //#define MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER 1087 1088 /** 1089 * \def MBEDTLS_MEMORY_DEBUG 1090 * 1091 * Enable debugging of buffer allocator memory issues. Automatically prints 1092 * (to stderr) all (fatal) messages on memory allocation issues. Enables 1093 * function for 'debug output' of allocated memory. 1094 * 1095 * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C 1096 * 1097 * Uncomment this macro to let the buffer allocator print out error messages. 1098 */ 1099 //#define MBEDTLS_MEMORY_DEBUG 1100 1101 /** 1102 * \def MBEDTLS_MEMORY_BACKTRACE 1103 * 1104 * Include backtrace information with each allocated block. 1105 * 1106 * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C 1107 * GLIBC-compatible backtrace() an backtrace_symbols() support 1108 * 1109 * Uncomment this macro to include backtrace information 1110 */ 1111 //#define MBEDTLS_MEMORY_BACKTRACE 1112 1113 /** 1114 * \def MBEDTLS_PK_RSA_ALT_SUPPORT 1115 * 1116 * Support external private RSA keys (eg from a HSM) in the PK layer. 1117 * 1118 * Comment this macro to disable support for external private RSA keys. 1119 */ 1120 #define MBEDTLS_PK_RSA_ALT_SUPPORT 1121 1122 /** 1123 * \def MBEDTLS_PKCS1_V15 1124 * 1125 * Enable support for PKCS#1 v1.5 encoding. 1126 * 1127 * Requires: MBEDTLS_RSA_C 1128 * 1129 * This enables support for PKCS#1 v1.5 operations. 1130 */ 1131 #define MBEDTLS_PKCS1_V15 1132 1133 /** 1134 * \def MBEDTLS_PKCS1_V21 1135 * 1136 * Enable support for PKCS#1 v2.1 encoding. 1137 * 1138 * Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C 1139 * 1140 * This enables support for RSAES-OAEP and RSASSA-PSS operations. 1141 */ 1142 #define MBEDTLS_PKCS1_V21 1143 1144 /** \def MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS 1145 * 1146 * Enable support for platform built-in keys. If you enable this feature, 1147 * you must implement the function mbedtls_psa_platform_get_builtin_key(). 1148 * See the documentation of that function for more information. 1149 * 1150 * Built-in keys are typically derived from a hardware unique key or 1151 * stored in a secure element. 1152 * 1153 * Requires: MBEDTLS_PSA_CRYPTO_C. 1154 * 1155 * \warning This interface is experimental and may change or be removed 1156 * without notice. 1157 */ 1158 //#define MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS 1159 1160 /** \def MBEDTLS_PSA_CRYPTO_CLIENT 1161 * 1162 * Enable support for PSA crypto client. 1163 * 1164 * \note This option allows to include the code necessary for a PSA 1165 * crypto client when the PSA crypto implementation is not included in 1166 * the library (MBEDTLS_PSA_CRYPTO_C disabled). The code included is the 1167 * code to set and get PSA key attributes. 1168 * The development of PSA drivers partially relying on the library to 1169 * fulfill the hardware gaps is another possible usage of this option. 1170 * 1171 * \warning This interface is experimental and may change or be removed 1172 * without notice. 1173 */ 1174 //#define MBEDTLS_PSA_CRYPTO_CLIENT 1175 1176 /** \def MBEDTLS_PSA_CRYPTO_DRIVERS 1177 * 1178 * Enable support for the experimental PSA crypto driver interface. 1179 * 1180 * Requires: MBEDTLS_PSA_CRYPTO_C 1181 * 1182 * \warning This interface is experimental and may change or be removed 1183 * without notice. 1184 */ 1185 //#define MBEDTLS_PSA_CRYPTO_DRIVERS 1186 1187 /** \def MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG 1188 * 1189 * Make the PSA Crypto module use an external random generator provided 1190 * by a driver, instead of Mbed TLS's entropy and DRBG modules. 1191 * 1192 * \note This random generator must deliver random numbers with cryptographic 1193 * quality and high performance. It must supply unpredictable numbers 1194 * with a uniform distribution. The implementation of this function 1195 * is responsible for ensuring that the random generator is seeded 1196 * with sufficient entropy. If you have a hardware TRNG which is slow 1197 * or delivers non-uniform output, declare it as an entropy source 1198 * with mbedtls_entropy_add_source() instead of enabling this option. 1199 * 1200 * If you enable this option, you must configure the type 1201 * ::mbedtls_psa_external_random_context_t in psa/crypto_platform.h 1202 * and define a function called mbedtls_psa_external_get_random() 1203 * with the following prototype: 1204 * ``` 1205 * psa_status_t mbedtls_psa_external_get_random( 1206 * mbedtls_psa_external_random_context_t *context, 1207 * uint8_t *output, size_t output_size, size_t *output_length); 1208 * ); 1209 * ``` 1210 * The \c context value is initialized to 0 before the first call. 1211 * The function must fill the \c output buffer with \p output_size bytes 1212 * of random data and set \c *output_length to \p output_size. 1213 * 1214 * Requires: MBEDTLS_PSA_CRYPTO_C 1215 * 1216 * \warning If you enable this option, code that uses the PSA cryptography 1217 * interface will not use any of the entropy sources set up for 1218 * the entropy module, nor the NV seed that MBEDTLS_ENTROPY_NV_SEED 1219 * enables. 1220 * 1221 * \note This option is experimental and may be removed without notice. 1222 */ 1223 //#define MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG 1224 1225 /** 1226 * \def MBEDTLS_PSA_CRYPTO_SPM 1227 * 1228 * When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is built for SPM (Secure 1229 * Partition Manager) integration which separates the code into two parts: a 1230 * NSPE (Non-Secure Process Environment) and an SPE (Secure Process 1231 * Environment). 1232 * 1233 * Module: library/psa_crypto.c 1234 * Requires: MBEDTLS_PSA_CRYPTO_C 1235 * 1236 */ 1237 //#define MBEDTLS_PSA_CRYPTO_SPM 1238 1239 /** 1240 * \def MBEDTLS_PSA_INJECT_ENTROPY 1241 * 1242 * Enable support for entropy injection at first boot. This feature is 1243 * required on systems that do not have a built-in entropy source (TRNG). 1244 * This feature is currently not supported on systems that have a built-in 1245 * entropy source. 1246 * 1247 * Requires: MBEDTLS_PSA_CRYPTO_STORAGE_C, MBEDTLS_ENTROPY_NV_SEED 1248 * 1249 */ 1250 //#define MBEDTLS_PSA_INJECT_ENTROPY 1251 1252 /** 1253 * \def MBEDTLS_RSA_NO_CRT 1254 * 1255 * Do not use the Chinese Remainder Theorem 1256 * for the RSA private operation. 1257 * 1258 * Uncomment this macro to disable the use of CRT in RSA. 1259 * 1260 */ 1261 //#define MBEDTLS_RSA_NO_CRT 1262 1263 /** 1264 * \def MBEDTLS_SELF_TEST 1265 * 1266 * Enable the checkup functions (*_self_test). 1267 */ 1268 #define MBEDTLS_SELF_TEST 1269 1270 /** 1271 * \def MBEDTLS_SHA256_SMALLER 1272 * 1273 * Enable an implementation of SHA-256 that has lower ROM footprint but also 1274 * lower performance. 1275 * 1276 * The default implementation is meant to be a reasonnable compromise between 1277 * performance and size. This version optimizes more aggressively for size at 1278 * the expense of performance. Eg on Cortex-M4 it reduces the size of 1279 * mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about 1280 * 30%. 1281 * 1282 * Uncomment to enable the smaller implementation of SHA256. 1283 */ 1284 //#define MBEDTLS_SHA256_SMALLER 1285 1286 /** 1287 * \def MBEDTLS_SHA512_SMALLER 1288 * 1289 * Enable an implementation of SHA-512 that has lower ROM footprint but also 1290 * lower performance. 1291 * 1292 * Uncomment to enable the smaller implementation of SHA512. 1293 */ 1294 //#define MBEDTLS_SHA512_SMALLER 1295 1296 /** 1297 * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES 1298 * 1299 * Enable sending of alert messages in case of encountered errors as per RFC. 1300 * If you choose not to send the alert messages, mbed TLS can still communicate 1301 * with other servers, only debugging of failures is harder. 1302 * 1303 * The advantage of not sending alert messages, is that no information is given 1304 * about reasons for failures thus preventing adversaries of gaining intel. 1305 * 1306 * Enable sending of all alert messages 1307 */ 1308 #define MBEDTLS_SSL_ALL_ALERT_MESSAGES 1309 1310 /** 1311 * \def MBEDTLS_SSL_DTLS_CONNECTION_ID 1312 * 1313 * Enable support for the DTLS Connection ID extension 1314 * (version draft-ietf-tls-dtls-connection-id-05, 1315 * https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05) 1316 * which allows to identify DTLS connections across changes 1317 * in the underlying transport. 1318 * 1319 * Setting this option enables the SSL APIs `mbedtls_ssl_set_cid()`, 1320 * `mbedtls_ssl_get_peer_cid()` and `mbedtls_ssl_conf_cid()`. 1321 * See the corresponding documentation for more information. 1322 * 1323 * \warning The Connection ID extension is still in draft state. 1324 * We make no stability promises for the availability 1325 * or the shape of the API controlled by this option. 1326 * 1327 * The maximum lengths of outgoing and incoming CIDs can be configured 1328 * through the options 1329 * - MBEDTLS_SSL_CID_OUT_LEN_MAX 1330 * - MBEDTLS_SSL_CID_IN_LEN_MAX. 1331 * 1332 * Requires: MBEDTLS_SSL_PROTO_DTLS 1333 * 1334 * Uncomment to enable the Connection ID extension. 1335 */ 1336 //#define MBEDTLS_SSL_DTLS_CONNECTION_ID 1337 1338 /** 1339 * \def MBEDTLS_SSL_ASYNC_PRIVATE 1340 * 1341 * Enable asynchronous external private key operations in SSL. This allows 1342 * you to configure an SSL connection to call an external cryptographic 1343 * module to perform private key operations instead of performing the 1344 * operation inside the library. 1345 * 1346 */ 1347 //#define MBEDTLS_SSL_ASYNC_PRIVATE 1348 1349 /** 1350 * \def MBEDTLS_SSL_CONTEXT_SERIALIZATION 1351 * 1352 * Enable serialization of the TLS context structures, through use of the 1353 * functions mbedtls_ssl_context_save() and mbedtls_ssl_context_load(). 1354 * 1355 * This pair of functions allows one side of a connection to serialize the 1356 * context associated with the connection, then free or re-use that context 1357 * while the serialized state is persisted elsewhere, and finally deserialize 1358 * that state to a live context for resuming read/write operations on the 1359 * connection. From a protocol perspective, the state of the connection is 1360 * unaffected, in particular this is entirely transparent to the peer. 1361 * 1362 * Note: this is distinct from TLS session resumption, which is part of the 1363 * protocol and fully visible by the peer. TLS session resumption enables 1364 * establishing new connections associated to a saved session with shorter, 1365 * lighter handshakes, while context serialization is a local optimization in 1366 * handling a single, potentially long-lived connection. 1367 * 1368 * Enabling these APIs makes some SSL structures larger, as 64 extra bytes are 1369 * saved after the handshake to allow for more efficient serialization, so if 1370 * you don't need this feature you'll save RAM by disabling it. 1371 * 1372 * Comment to disable the context serialization APIs. 1373 */ 1374 #define MBEDTLS_SSL_CONTEXT_SERIALIZATION 1375 1376 /** 1377 * \def MBEDTLS_SSL_DEBUG_ALL 1378 * 1379 * Enable the debug messages in SSL module for all issues. 1380 * Debug messages have been disabled in some places to prevent timing 1381 * attacks due to (unbalanced) debugging function calls. 1382 * 1383 * If you need all error reporting you should enable this during debugging, 1384 * but remove this for production servers that should log as well. 1385 * 1386 * Uncomment this macro to report all debug messages on errors introducing 1387 * a timing side-channel. 1388 * 1389 */ 1390 //#define MBEDTLS_SSL_DEBUG_ALL 1391 1392 /** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC 1393 * 1394 * Enable support for Encrypt-then-MAC, RFC 7366. 1395 * 1396 * This allows peers that both support it to use a more robust protection for 1397 * ciphersuites using CBC, providing deep resistance against timing attacks 1398 * on the padding or underlying cipher. 1399 * 1400 * This only affects CBC ciphersuites, and is useless if none is defined. 1401 * 1402 * Requires: MBEDTLS_SSL_PROTO_TLS1_2 1403 * 1404 * Comment this macro to disable support for Encrypt-then-MAC 1405 */ 1406 #define MBEDTLS_SSL_ENCRYPT_THEN_MAC 1407 1408 /** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET 1409 * 1410 * Enable support for RFC 7627: Session Hash and Extended Master Secret 1411 * Extension. 1412 * 1413 * This was introduced as "the proper fix" to the Triple Handshake familiy of 1414 * attacks, but it is recommended to always use it (even if you disable 1415 * renegotiation), since it actually fixes a more fundamental issue in the 1416 * original SSL/TLS design, and has implications beyond Triple Handshake. 1417 * 1418 * Requires: MBEDTLS_SSL_PROTO_TLS1_2 1419 * 1420 * Comment this macro to disable support for Extended Master Secret. 1421 */ 1422 #define MBEDTLS_SSL_EXTENDED_MASTER_SECRET 1423 1424 /** 1425 * \def MBEDTLS_SSL_KEEP_PEER_CERTIFICATE 1426 * 1427 * This option controls the availability of the API mbedtls_ssl_get_peer_cert() 1428 * giving access to the peer's certificate after completion of the handshake. 1429 * 1430 * Unless you need mbedtls_ssl_peer_cert() in your application, it is 1431 * recommended to disable this option for reduced RAM usage. 1432 * 1433 * \note If this option is disabled, mbedtls_ssl_get_peer_cert() is still 1434 * defined, but always returns \c NULL. 1435 * 1436 * \note This option has no influence on the protection against the 1437 * triple handshake attack. Even if it is disabled, Mbed TLS will 1438 * still ensure that certificates do not change during renegotiation, 1439 * for exaple by keeping a hash of the peer's certificate. 1440 * 1441 * Comment this macro to disable storing the peer's certificate 1442 * after the handshake. 1443 */ 1444 #define MBEDTLS_SSL_KEEP_PEER_CERTIFICATE 1445 1446 /** 1447 * \def MBEDTLS_SSL_RENEGOTIATION 1448 * 1449 * Enable support for TLS renegotiation. 1450 * 1451 * The two main uses of renegotiation are (1) refresh keys on long-lived 1452 * connections and (2) client authentication after the initial handshake. 1453 * If you don't need renegotiation, it's probably better to disable it, since 1454 * it has been associated with security issues in the past and is easy to 1455 * misuse/misunderstand. 1456 * 1457 * Comment this to disable support for renegotiation. 1458 * 1459 * \note Even if this option is disabled, both client and server are aware 1460 * of the Renegotiation Indication Extension (RFC 5746) used to 1461 * prevent the SSL renegotiation attack (see RFC 5746 Sect. 1). 1462 * (See \c mbedtls_ssl_conf_legacy_renegotiation for the 1463 * configuration of this extension). 1464 * 1465 */ 1466 #define MBEDTLS_SSL_RENEGOTIATION 1467 1468 /** 1469 * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH 1470 * 1471 * Enable support for RFC 6066 max_fragment_length extension in SSL. 1472 * 1473 * Comment this macro to disable support for the max_fragment_length extension 1474 */ 1475 #define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH 1476 1477 /** 1478 * \def MBEDTLS_SSL_PROTO_TLS1_2 1479 * 1480 * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled). 1481 * 1482 * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C 1483 * (Depends on ciphersuites) 1484 * 1485 * Comment this macro to disable support for TLS 1.2 / DTLS 1.2 1486 */ 1487 #define MBEDTLS_SSL_PROTO_TLS1_2 1488 1489 /** 1490 * \def MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL 1491 * 1492 * This macro is used to selectively enable experimental parts 1493 * of the code that contribute to the ongoing development of 1494 * the prototype TLS 1.3 and DTLS 1.3 implementation, and provide 1495 * no other purpose. 1496 * 1497 * \warning TLS 1.3 and DTLS 1.3 aren't yet supported in Mbed TLS, 1498 * and no feature exposed through this macro is part of the 1499 * public API. In particular, features under the control 1500 * of this macro are experimental and don't come with any 1501 * stability guarantees. 1502 * 1503 * Uncomment this macro to enable experimental and partial 1504 * functionality specific to TLS 1.3. 1505 */ 1506 //#define MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL 1507 1508 /** 1509 * \def MBEDTLS_SSL_PROTO_DTLS 1510 * 1511 * Enable support for DTLS (all available versions). 1512 * 1513 * Enable this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2. 1514 * 1515 * Requires: MBEDTLS_SSL_PROTO_TLS1_2 1516 * 1517 * Comment this macro to disable support for DTLS 1518 */ 1519 #define MBEDTLS_SSL_PROTO_DTLS 1520 1521 /** 1522 * \def MBEDTLS_SSL_ALPN 1523 * 1524 * Enable support for RFC 7301 Application Layer Protocol Negotiation. 1525 * 1526 * Comment this macro to disable support for ALPN. 1527 */ 1528 #define MBEDTLS_SSL_ALPN 1529 1530 /** 1531 * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY 1532 * 1533 * Enable support for the anti-replay mechanism in DTLS. 1534 * 1535 * Requires: MBEDTLS_SSL_TLS_C 1536 * MBEDTLS_SSL_PROTO_DTLS 1537 * 1538 * \warning Disabling this is often a security risk! 1539 * See mbedtls_ssl_conf_dtls_anti_replay() for details. 1540 * 1541 * Comment this to disable anti-replay in DTLS. 1542 */ 1543 #define MBEDTLS_SSL_DTLS_ANTI_REPLAY 1544 1545 /** 1546 * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY 1547 * 1548 * Enable support for HelloVerifyRequest on DTLS servers. 1549 * 1550 * This feature is highly recommended to prevent DTLS servers being used as 1551 * amplifiers in DoS attacks against other hosts. It should always be enabled 1552 * unless you know for sure amplification cannot be a problem in the 1553 * environment in which your server operates. 1554 * 1555 * \warning Disabling this can ba a security risk! (see above) 1556 * 1557 * Requires: MBEDTLS_SSL_PROTO_DTLS 1558 * 1559 * Comment this to disable support for HelloVerifyRequest. 1560 */ 1561 #define MBEDTLS_SSL_DTLS_HELLO_VERIFY 1562 1563 /** 1564 * \def MBEDTLS_SSL_DTLS_SRTP 1565 * 1566 * Enable support for negotiation of DTLS-SRTP (RFC 5764) 1567 * through the use_srtp extension. 1568 * 1569 * \note This feature provides the minimum functionality required 1570 * to negotiate the use of DTLS-SRTP and to allow the derivation of 1571 * the associated SRTP packet protection key material. 1572 * In particular, the SRTP packet protection itself, as well as the 1573 * demultiplexing of RTP and DTLS packets at the datagram layer 1574 * (see Section 5 of RFC 5764), are not handled by this feature. 1575 * Instead, after successful completion of a handshake negotiating 1576 * the use of DTLS-SRTP, the extended key exporter API 1577 * mbedtls_ssl_conf_export_keys_cb() should be used to implement 1578 * the key exporter described in Section 4.2 of RFC 5764 and RFC 5705 1579 * (this is implemented in the SSL example programs). 1580 * The resulting key should then be passed to an SRTP stack. 1581 * 1582 * Setting this option enables the runtime API 1583 * mbedtls_ssl_conf_dtls_srtp_protection_profiles() 1584 * through which the supported DTLS-SRTP protection 1585 * profiles can be configured. You must call this API at 1586 * runtime if you wish to negotiate the use of DTLS-SRTP. 1587 * 1588 * Requires: MBEDTLS_SSL_PROTO_DTLS 1589 * 1590 * Uncomment this to enable support for use_srtp extension. 1591 */ 1592 //#define MBEDTLS_SSL_DTLS_SRTP 1593 1594 /** 1595 * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE 1596 * 1597 * Enable server-side support for clients that reconnect from the same port. 1598 * 1599 * Some clients unexpectedly close the connection and try to reconnect using the 1600 * same source port. This needs special support from the server to handle the 1601 * new connection securely, as described in section 4.2.8 of RFC 6347. This 1602 * flag enables that support. 1603 * 1604 * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY 1605 * 1606 * Comment this to disable support for clients reusing the source port. 1607 */ 1608 #define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE 1609 1610 /** 1611 * \def MBEDTLS_SSL_SESSION_TICKETS 1612 * 1613 * Enable support for RFC 5077 session tickets in SSL. 1614 * Client-side, provides full support for session tickets (maintenance of a 1615 * session store remains the responsibility of the application, though). 1616 * Server-side, you also need to provide callbacks for writing and parsing 1617 * tickets, including authenticated encryption and key management. Example 1618 * callbacks are provided by MBEDTLS_SSL_TICKET_C. 1619 * 1620 * Comment this macro to disable support for SSL session tickets 1621 */ 1622 #define MBEDTLS_SSL_SESSION_TICKETS 1623 1624 /** 1625 * \def MBEDTLS_SSL_SERVER_NAME_INDICATION 1626 * 1627 * Enable support for RFC 6066 server name indication (SNI) in SSL. 1628 * 1629 * Requires: MBEDTLS_X509_CRT_PARSE_C 1630 * 1631 * Comment this macro to disable support for server name indication in SSL 1632 */ 1633 #define MBEDTLS_SSL_SERVER_NAME_INDICATION 1634 1635 /** 1636 * \def MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH 1637 * 1638 * When this option is enabled, the SSL buffer will be resized automatically 1639 * based on the negotiated maximum fragment length in each direction. 1640 * 1641 * Requires: MBEDTLS_SSL_MAX_FRAGMENT_LENGTH 1642 */ 1643 //#define MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH 1644 1645 /** 1646 * \def MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN 1647 * 1648 * Enable testing of the constant-flow nature of some sensitive functions with 1649 * clang's MemorySanitizer. This causes some existing tests to also test 1650 * this non-functional property of the code under test. 1651 * 1652 * This setting requires compiling with clang -fsanitize=memory. The test 1653 * suites can then be run normally. 1654 * 1655 * \warning This macro is only used for extended testing; it is not considered 1656 * part of the library's API, so it may change or disappear at any time. 1657 * 1658 * Uncomment to enable testing of the constant-flow nature of selected code. 1659 */ 1660 //#define MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN 1661 1662 /** 1663 * \def MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND 1664 * 1665 * Enable testing of the constant-flow nature of some sensitive functions with 1666 * valgrind's memcheck tool. This causes some existing tests to also test 1667 * this non-functional property of the code under test. 1668 * 1669 * This setting requires valgrind headers for building, and is only useful for 1670 * testing if the tests suites are run with valgrind's memcheck. This can be 1671 * done for an individual test suite with 'valgrind ./test_suite_xxx', or when 1672 * using CMake, this can be done for all test suites with 'make memcheck'. 1673 * 1674 * \warning This macro is only used for extended testing; it is not considered 1675 * part of the library's API, so it may change or disappear at any time. 1676 * 1677 * Uncomment to enable testing of the constant-flow nature of selected code. 1678 */ 1679 //#define MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND 1680 1681 /** 1682 * \def MBEDTLS_TEST_HOOKS 1683 * 1684 * Enable features for invasive testing such as introspection functions and 1685 * hooks for fault injection. This enables additional unit tests. 1686 * 1687 * Merely enabling this feature should not change the behavior of the product. 1688 * It only adds new code, and new branching points where the default behavior 1689 * is the same as when this feature is disabled. 1690 * However, this feature increases the attack surface: there is an added 1691 * risk of vulnerabilities, and more gadgets that can make exploits easier. 1692 * Therefore this feature must never be enabled in production. 1693 * 1694 * See `docs/architecture/testing/mbed-crypto-invasive-testing.md` for more 1695 * information. 1696 * 1697 * Uncomment to enable invasive tests. 1698 */ 1699 //#define MBEDTLS_TEST_HOOKS 1700 1701 /** 1702 * \def MBEDTLS_THREADING_ALT 1703 * 1704 * Provide your own alternate threading implementation. 1705 * 1706 * Requires: MBEDTLS_THREADING_C 1707 * 1708 * Uncomment this to allow your own alternate threading implementation. 1709 */ 1710 //#define MBEDTLS_THREADING_ALT 1711 1712 /** 1713 * \def MBEDTLS_THREADING_PTHREAD 1714 * 1715 * Enable the pthread wrapper layer for the threading layer. 1716 * 1717 * Requires: MBEDTLS_THREADING_C 1718 * 1719 * Uncomment this to enable pthread mutexes. 1720 */ 1721 //#define MBEDTLS_THREADING_PTHREAD 1722 1723 /** 1724 * \def MBEDTLS_USE_PSA_CRYPTO 1725 * 1726 * Make the X.509 and TLS library use PSA for cryptographic operations, and 1727 * enable new APIs for using keys handled by PSA Crypto. 1728 * 1729 * \note Development of this option is currently in progress, and parts of Mbed 1730 * TLS's X.509 and TLS modules are not ported to PSA yet. However, these parts 1731 * will still continue to work as usual, so enabling this option should not 1732 * break backwards compatibility. 1733 * 1734 * \note See docs/use-psa-crypto.md for a complete description of what this 1735 * option currently does, and of parts that are not affected by it so far. 1736 * 1737 * \warning This option enables new Mbed TLS APIs which are currently 1738 * considered experimental and may change in incompatible ways at any time. 1739 * That is, the APIs enabled by this option are not covered by the usual 1740 * promises of API stability. 1741 * 1742 * Requires: MBEDTLS_PSA_CRYPTO_C. 1743 * 1744 * Uncomment this to enable internal use of PSA Crypto and new associated APIs. 1745 */ 1746 //#define MBEDTLS_USE_PSA_CRYPTO 1747 1748 /** 1749 * \def MBEDTLS_PSA_CRYPTO_CONFIG 1750 * 1751 * This setting allows support for cryptographic mechanisms through the PSA 1752 * API to be configured separately from support through the mbedtls API. 1753 * 1754 * Uncomment this to enable use of PSA Crypto configuration settings which 1755 * can be found in include/psa/crypto_config.h. 1756 * 1757 * This feature is still experimental and is not ready for production since 1758 * it is not completed. 1759 */ 1760 //#define MBEDTLS_PSA_CRYPTO_CONFIG 1761 1762 /** 1763 * \def MBEDTLS_VERSION_FEATURES 1764 * 1765 * Allow run-time checking of compile-time enabled features. Thus allowing users 1766 * to check at run-time if the library is for instance compiled with threading 1767 * support via mbedtls_version_check_feature(). 1768 * 1769 * Requires: MBEDTLS_VERSION_C 1770 * 1771 * Comment this to disable run-time checking and save ROM space 1772 */ 1773 #define MBEDTLS_VERSION_FEATURES 1774 1775 /** 1776 * \def MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK 1777 * 1778 * If set, this enables the X.509 API `mbedtls_x509_crt_verify_with_ca_cb()` 1779 * and the SSL API `mbedtls_ssl_conf_ca_cb()` which allow users to configure 1780 * the set of trusted certificates through a callback instead of a linked 1781 * list. 1782 * 1783 * This is useful for example in environments where a large number of trusted 1784 * certificates is present and storing them in a linked list isn't efficient 1785 * enough, or when the set of trusted certificates changes frequently. 1786 * 1787 * See the documentation of `mbedtls_x509_crt_verify_with_ca_cb()` and 1788 * `mbedtls_ssl_conf_ca_cb()` for more information. 1789 * 1790 * Uncomment to enable trusted certificate callbacks. 1791 */ 1792 //#define MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK 1793 1794 /** 1795 * \def MBEDTLS_X509_REMOVE_INFO 1796 * 1797 * Disable mbedtls_x509_*_info() and related APIs. 1798 * 1799 * Uncomment to omit mbedtls_x509_*_info(), as well as mbedtls_debug_print_crt() 1800 * and other functions/constants only used by these functions, thus reducing 1801 * the code footprint by several KB. 1802 */ 1803 //#define MBEDTLS_X509_REMOVE_INFO 1804 1805 /** 1806 * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT 1807 * 1808 * Enable parsing and verification of X.509 certificates, CRLs and CSRS 1809 * signed with RSASSA-PSS (aka PKCS#1 v2.1). 1810 * 1811 * Comment this macro to disallow using RSASSA-PSS in certificates. 1812 */ 1813 #define MBEDTLS_X509_RSASSA_PSS_SUPPORT 1814 /* \} name SECTION: mbed TLS feature support */ 1815 1816 /** 1817 * \name SECTION: mbed TLS modules 1818 * 1819 * This section enables or disables entire modules in mbed TLS 1820 * \{ 1821 */ 1822 1823 /** 1824 * \def MBEDTLS_AESNI_C 1825 * 1826 * Enable AES-NI support on x86-64. 1827 * 1828 * Module: library/aesni.c 1829 * Caller: library/aes.c 1830 * 1831 * Requires: MBEDTLS_HAVE_ASM 1832 * 1833 * This modules adds support for the AES-NI instructions on x86-64 1834 */ 1835 #define MBEDTLS_AESNI_C 1836 1837 /** 1838 * \def MBEDTLS_AES_C 1839 * 1840 * Enable the AES block cipher. 1841 * 1842 * Module: library/aes.c 1843 * Caller: library/cipher.c 1844 * library/pem.c 1845 * library/ctr_drbg.c 1846 * 1847 * This module enables the following ciphersuites (if other requisites are 1848 * enabled as well): 1849 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 1850 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 1851 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 1852 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 1853 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 1854 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 1855 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 1856 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 1857 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 1858 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 1859 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 1860 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 1861 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 1862 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 1863 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 1864 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 1865 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 1866 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 1867 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 1868 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 1869 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 1870 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 1871 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 1872 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 1873 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 1874 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 1875 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 1876 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 1877 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 1878 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 1879 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 1880 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 1881 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 1882 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 1883 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 1884 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 1885 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 1886 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 1887 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 1888 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 1889 * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 1890 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 1891 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 1892 * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 1893 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 1894 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 1895 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 1896 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 1897 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 1898 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 1899 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 1900 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 1901 * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 1902 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 1903 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 1904 * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 1905 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 1906 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 1907 * 1908 * PEM_PARSE uses AES for decrypting encrypted keys. 1909 */ 1910 #define MBEDTLS_AES_C 1911 1912 /** 1913 * \def MBEDTLS_ASN1_PARSE_C 1914 * 1915 * Enable the generic ASN1 parser. 1916 * 1917 * Module: library/asn1.c 1918 * Caller: library/x509.c 1919 * library/dhm.c 1920 * library/pkcs12.c 1921 * library/pkcs5.c 1922 * library/pkparse.c 1923 */ 1924 #define MBEDTLS_ASN1_PARSE_C 1925 1926 /** 1927 * \def MBEDTLS_ASN1_WRITE_C 1928 * 1929 * Enable the generic ASN1 writer. 1930 * 1931 * Module: library/asn1write.c 1932 * Caller: library/ecdsa.c 1933 * library/pkwrite.c 1934 * library/x509_create.c 1935 * library/x509write_crt.c 1936 * library/x509write_csr.c 1937 */ 1938 #define MBEDTLS_ASN1_WRITE_C 1939 1940 /** 1941 * \def MBEDTLS_BASE64_C 1942 * 1943 * Enable the Base64 module. 1944 * 1945 * Module: library/base64.c 1946 * Caller: library/pem.c 1947 * 1948 * This module is required for PEM support (required by X.509). 1949 */ 1950 #define MBEDTLS_BASE64_C 1951 1952 /** 1953 * \def MBEDTLS_BIGNUM_C 1954 * 1955 * Enable the multi-precision integer library. 1956 * 1957 * Module: library/bignum.c 1958 * Caller: library/dhm.c 1959 * library/ecp.c 1960 * library/ecdsa.c 1961 * library/rsa.c 1962 * library/rsa_alt_helpers.c 1963 * library/ssl_tls.c 1964 * 1965 * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support. 1966 */ 1967 #define MBEDTLS_BIGNUM_C 1968 1969 /** 1970 * \def MBEDTLS_CAMELLIA_C 1971 * 1972 * Enable the Camellia block cipher. 1973 * 1974 * Module: library/camellia.c 1975 * Caller: library/cipher.c 1976 * 1977 * This module enables the following ciphersuites (if other requisites are 1978 * enabled as well): 1979 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 1980 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 1981 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 1982 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 1983 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 1984 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 1985 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 1986 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 1987 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 1988 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 1989 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 1990 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 1991 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 1992 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 1993 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 1994 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 1995 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 1996 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 1997 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 1998 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 1999 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 2000 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 2001 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 2002 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 2003 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 2004 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 2005 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 2006 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 2007 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 2008 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 2009 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 2010 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 2011 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 2012 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 2013 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 2014 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 2015 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 2016 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 2017 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 2018 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 2019 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 2020 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 2021 */ 2022 #define MBEDTLS_CAMELLIA_C 2023 2024 /** 2025 * \def MBEDTLS_ARIA_C 2026 * 2027 * Enable the ARIA block cipher. 2028 * 2029 * Module: library/aria.c 2030 * Caller: library/cipher.c 2031 * 2032 * This module enables the following ciphersuites (if other requisites are 2033 * enabled as well): 2034 * 2035 * MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256 2036 * MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384 2037 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 2038 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 2039 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 2040 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 2041 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 2042 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 2043 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 2044 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 2045 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 2046 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 2047 * MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256 2048 * MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384 2049 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 2050 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 2051 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 2052 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 2053 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 2054 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 2055 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 2056 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 2057 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 2058 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 2059 * MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256 2060 * MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384 2061 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 2062 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 2063 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 2064 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 2065 * MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256 2066 * MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384 2067 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 2068 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 2069 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 2070 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 2071 * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 2072 * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 2073 */ 2074 #define MBEDTLS_ARIA_C 2075 2076 /** 2077 * \def MBEDTLS_CCM_C 2078 * 2079 * Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher. 2080 * 2081 * Module: library/ccm.c 2082 * 2083 * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C 2084 * 2085 * This module enables the AES-CCM ciphersuites, if other requisites are 2086 * enabled as well. 2087 */ 2088 #define MBEDTLS_CCM_C 2089 2090 /** 2091 * \def MBEDTLS_CHACHA20_C 2092 * 2093 * Enable the ChaCha20 stream cipher. 2094 * 2095 * Module: library/chacha20.c 2096 */ 2097 #define MBEDTLS_CHACHA20_C 2098 2099 /** 2100 * \def MBEDTLS_CHACHAPOLY_C 2101 * 2102 * Enable the ChaCha20-Poly1305 AEAD algorithm. 2103 * 2104 * Module: library/chachapoly.c 2105 * 2106 * This module requires: MBEDTLS_CHACHA20_C, MBEDTLS_POLY1305_C 2107 */ 2108 #define MBEDTLS_CHACHAPOLY_C 2109 2110 /** 2111 * \def MBEDTLS_CIPHER_C 2112 * 2113 * Enable the generic cipher layer. 2114 * 2115 * Module: library/cipher.c 2116 * Caller: library/ssl_tls.c 2117 * 2118 * Uncomment to enable generic cipher wrappers. 2119 */ 2120 #define MBEDTLS_CIPHER_C 2121 2122 /** 2123 * \def MBEDTLS_CMAC_C 2124 * 2125 * Enable the CMAC (Cipher-based Message Authentication Code) mode for block 2126 * ciphers. 2127 * 2128 * \note When #MBEDTLS_CMAC_ALT is active, meaning that the underlying 2129 * implementation of the CMAC algorithm is provided by an alternate 2130 * implementation, that alternate implementation may opt to not support 2131 * AES-192 or 3DES as underlying block ciphers for the CMAC operation. 2132 * 2133 * Module: library/cmac.c 2134 * 2135 * Requires: MBEDTLS_AES_C or MBEDTLS_DES_C 2136 * 2137 */ 2138 #define MBEDTLS_CMAC_C 2139 2140 /** 2141 * \def MBEDTLS_CTR_DRBG_C 2142 * 2143 * Enable the CTR_DRBG AES-based random generator. 2144 * The CTR_DRBG generator uses AES-256 by default. 2145 * To use AES-128 instead, enable \c MBEDTLS_CTR_DRBG_USE_128_BIT_KEY above. 2146 * 2147 * \note To achieve a 256-bit security strength with CTR_DRBG, 2148 * you must use AES-256 *and* use sufficient entropy. 2149 * See ctr_drbg.h for more details. 2150 * 2151 * Module: library/ctr_drbg.c 2152 * Caller: 2153 * 2154 * Requires: MBEDTLS_AES_C 2155 * 2156 * This module provides the CTR_DRBG AES random number generator. 2157 */ 2158 #define MBEDTLS_CTR_DRBG_C 2159 2160 /** 2161 * \def MBEDTLS_DEBUG_C 2162 * 2163 * Enable the debug functions. 2164 * 2165 * Module: library/debug.c 2166 * Caller: library/ssl_cli.c 2167 * library/ssl_srv.c 2168 * library/ssl_tls.c 2169 * 2170 * This module provides debugging functions. 2171 */ 2172 #define MBEDTLS_DEBUG_C 2173 2174 /** 2175 * \def MBEDTLS_DES_C 2176 * 2177 * Enable the DES block cipher. 2178 * 2179 * Module: library/des.c 2180 * Caller: library/pem.c 2181 * library/cipher.c 2182 * 2183 * PEM_PARSE uses DES/3DES for decrypting encrypted keys. 2184 * 2185 * \warning DES is considered a weak cipher and its use constitutes a 2186 * security risk. We recommend considering stronger ciphers instead. 2187 */ 2188 #define MBEDTLS_DES_C 2189 2190 /** 2191 * \def MBEDTLS_DHM_C 2192 * 2193 * Enable the Diffie-Hellman-Merkle module. 2194 * 2195 * Module: library/dhm.c 2196 * Caller: library/ssl_cli.c 2197 * library/ssl_srv.c 2198 * 2199 * This module is used by the following key exchanges: 2200 * DHE-RSA, DHE-PSK 2201 * 2202 * \warning Using DHE constitutes a security risk as it 2203 * is not possible to validate custom DH parameters. 2204 * If possible, it is recommended users should consider 2205 * preferring other methods of key exchange. 2206 * See dhm.h for more details. 2207 * 2208 */ 2209 #define MBEDTLS_DHM_C 2210 2211 /** 2212 * \def MBEDTLS_ECDH_C 2213 * 2214 * Enable the elliptic curve Diffie-Hellman library. 2215 * 2216 * Module: library/ecdh.c 2217 * Caller: library/ssl_cli.c 2218 * library/ssl_srv.c 2219 * 2220 * This module is used by the following key exchanges: 2221 * ECDHE-ECDSA, ECDHE-RSA, DHE-PSK 2222 * 2223 * Requires: MBEDTLS_ECP_C 2224 */ 2225 #define MBEDTLS_ECDH_C 2226 2227 /** 2228 * \def MBEDTLS_ECDSA_C 2229 * 2230 * Enable the elliptic curve DSA library. 2231 * 2232 * Module: library/ecdsa.c 2233 * Caller: 2234 * 2235 * This module is used by the following key exchanges: 2236 * ECDHE-ECDSA 2237 * 2238 * Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C, 2239 * and at least one MBEDTLS_ECP_DP_XXX_ENABLED for a 2240 * short Weierstrass curve. 2241 */ 2242 #define MBEDTLS_ECDSA_C 2243 2244 /** 2245 * \def MBEDTLS_ECJPAKE_C 2246 * 2247 * Enable the elliptic curve J-PAKE library. 2248 * 2249 * \note EC J-PAKE support is based on the Thread v1.0.0 specification. 2250 * It has not been reviewed for compliance with newer standards such as 2251 * Thread v1.1 or RFC 8236. 2252 * 2253 * Module: library/ecjpake.c 2254 * Caller: 2255 * 2256 * This module is used by the following key exchanges: 2257 * ECJPAKE 2258 * 2259 * Requires: MBEDTLS_ECP_C, MBEDTLS_MD_C 2260 */ 2261 #define MBEDTLS_ECJPAKE_C 2262 2263 /** 2264 * \def MBEDTLS_ECP_C 2265 * 2266 * Enable the elliptic curve over GF(p) library. 2267 * 2268 * Module: library/ecp.c 2269 * Caller: library/ecdh.c 2270 * library/ecdsa.c 2271 * library/ecjpake.c 2272 * 2273 * Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED 2274 */ 2275 #define MBEDTLS_ECP_C 2276 2277 /** 2278 * \def MBEDTLS_ENTROPY_C 2279 * 2280 * Enable the platform-specific entropy code. 2281 * 2282 * Module: library/entropy.c 2283 * Caller: 2284 * 2285 * Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C 2286 * 2287 * This module provides a generic entropy pool 2288 */ 2289 #define MBEDTLS_ENTROPY_C 2290 2291 /** 2292 * \def MBEDTLS_ERROR_C 2293 * 2294 * Enable error code to error string conversion. 2295 * 2296 * Module: library/error.c 2297 * Caller: 2298 * 2299 * This module enables mbedtls_strerror(). 2300 */ 2301 #define MBEDTLS_ERROR_C 2302 2303 /** 2304 * \def MBEDTLS_GCM_C 2305 * 2306 * Enable the Galois/Counter Mode (GCM). 2307 * 2308 * Module: library/gcm.c 2309 * 2310 * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or MBEDTLS_ARIA_C 2311 * 2312 * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other 2313 * requisites are enabled as well. 2314 */ 2315 #define MBEDTLS_GCM_C 2316 2317 /** 2318 * \def MBEDTLS_HKDF_C 2319 * 2320 * Enable the HKDF algorithm (RFC 5869). 2321 * 2322 * Module: library/hkdf.c 2323 * Caller: 2324 * 2325 * Requires: MBEDTLS_MD_C 2326 * 2327 * This module adds support for the Hashed Message Authentication Code 2328 * (HMAC)-based key derivation function (HKDF). 2329 */ 2330 #define MBEDTLS_HKDF_C 2331 2332 /** 2333 * \def MBEDTLS_HMAC_DRBG_C 2334 * 2335 * Enable the HMAC_DRBG random generator. 2336 * 2337 * Module: library/hmac_drbg.c 2338 * Caller: 2339 * 2340 * Requires: MBEDTLS_MD_C 2341 * 2342 * Uncomment to enable the HMAC_DRBG random number geerator. 2343 */ 2344 #define MBEDTLS_HMAC_DRBG_C 2345 2346 /** 2347 * \def MBEDTLS_NIST_KW_C 2348 * 2349 * Enable the Key Wrapping mode for 128-bit block ciphers, 2350 * as defined in NIST SP 800-38F. Only KW and KWP modes 2351 * are supported. At the moment, only AES is approved by NIST. 2352 * 2353 * Module: library/nist_kw.c 2354 * 2355 * Requires: MBEDTLS_AES_C and MBEDTLS_CIPHER_C 2356 */ 2357 #define MBEDTLS_NIST_KW_C 2358 2359 /** 2360 * \def MBEDTLS_MD_C 2361 * 2362 * Enable the generic message digest layer. 2363 * 2364 * Module: library/md.c 2365 * Caller: 2366 * 2367 * Uncomment to enable generic message digest wrappers. 2368 */ 2369 #define MBEDTLS_MD_C 2370 2371 /** 2372 * \def MBEDTLS_MD5_C 2373 * 2374 * Enable the MD5 hash algorithm. 2375 * 2376 * Module: library/md5.c 2377 * Caller: library/md.c 2378 * library/pem.c 2379 * library/ssl_tls.c 2380 * 2381 * This module is required for TLS 1.2 depending on the handshake parameters. 2382 * Further, it is used for checking MD5-signed certificates, and for PBKDF1 2383 * when decrypting PEM-encoded encrypted keys. 2384 * 2385 * \warning MD5 is considered a weak message digest and its use constitutes a 2386 * security risk. If possible, we recommend avoiding dependencies on 2387 * it, and considering stronger message digests instead. 2388 * 2389 */ 2390 #define MBEDTLS_MD5_C 2391 2392 /** 2393 * \def MBEDTLS_MEMORY_BUFFER_ALLOC_C 2394 * 2395 * Enable the buffer allocator implementation that makes use of a (stack) 2396 * based buffer to 'allocate' dynamic memory. (replaces calloc() and free() 2397 * calls) 2398 * 2399 * Module: library/memory_buffer_alloc.c 2400 * 2401 * Requires: MBEDTLS_PLATFORM_C 2402 * MBEDTLS_PLATFORM_MEMORY (to use it within mbed TLS) 2403 * 2404 * Enable this module to enable the buffer memory allocator. 2405 */ 2406 //#define MBEDTLS_MEMORY_BUFFER_ALLOC_C 2407 2408 /** 2409 * \def MBEDTLS_NET_C 2410 * 2411 * Enable the TCP and UDP over IPv6/IPv4 networking routines. 2412 * 2413 * \note This module only works on POSIX/Unix (including Linux, BSD and OS X) 2414 * and Windows. For other platforms, you'll want to disable it, and write your 2415 * own networking callbacks to be passed to \c mbedtls_ssl_set_bio(). 2416 * 2417 * \note See also our Knowledge Base article about porting to a new 2418 * environment: 2419 * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS 2420 * 2421 * Module: library/net_sockets.c 2422 * 2423 * This module provides networking routines. 2424 */ 2425 #define MBEDTLS_NET_C 2426 2427 /** 2428 * \def MBEDTLS_OID_C 2429 * 2430 * Enable the OID database. 2431 * 2432 * Module: library/oid.c 2433 * Caller: library/asn1write.c 2434 * library/pkcs5.c 2435 * library/pkparse.c 2436 * library/pkwrite.c 2437 * library/rsa.c 2438 * library/x509.c 2439 * library/x509_create.c 2440 * library/x509_crl.c 2441 * library/x509_crt.c 2442 * library/x509_csr.c 2443 * library/x509write_crt.c 2444 * library/x509write_csr.c 2445 * 2446 * This modules translates between OIDs and internal values. 2447 */ 2448 #define MBEDTLS_OID_C 2449 2450 /** 2451 * \def MBEDTLS_PADLOCK_C 2452 * 2453 * Enable VIA Padlock support on x86. 2454 * 2455 * Module: library/padlock.c 2456 * Caller: library/aes.c 2457 * 2458 * Requires: MBEDTLS_HAVE_ASM 2459 * 2460 * This modules adds support for the VIA PadLock on x86. 2461 */ 2462 #define MBEDTLS_PADLOCK_C 2463 2464 /** 2465 * \def MBEDTLS_PEM_PARSE_C 2466 * 2467 * Enable PEM decoding / parsing. 2468 * 2469 * Module: library/pem.c 2470 * Caller: library/dhm.c 2471 * library/pkparse.c 2472 * library/x509_crl.c 2473 * library/x509_crt.c 2474 * library/x509_csr.c 2475 * 2476 * Requires: MBEDTLS_BASE64_C 2477 * 2478 * This modules adds support for decoding / parsing PEM files. 2479 */ 2480 #define MBEDTLS_PEM_PARSE_C 2481 2482 /** 2483 * \def MBEDTLS_PEM_WRITE_C 2484 * 2485 * Enable PEM encoding / writing. 2486 * 2487 * Module: library/pem.c 2488 * Caller: library/pkwrite.c 2489 * library/x509write_crt.c 2490 * library/x509write_csr.c 2491 * 2492 * Requires: MBEDTLS_BASE64_C 2493 * 2494 * This modules adds support for encoding / writing PEM files. 2495 */ 2496 #define MBEDTLS_PEM_WRITE_C 2497 2498 /** 2499 * \def MBEDTLS_PK_C 2500 * 2501 * Enable the generic public (asymetric) key layer. 2502 * 2503 * Module: library/pk.c 2504 * Caller: library/ssl_tls.c 2505 * library/ssl_cli.c 2506 * library/ssl_srv.c 2507 * 2508 * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C 2509 * 2510 * Uncomment to enable generic public key wrappers. 2511 */ 2512 #define MBEDTLS_PK_C 2513 2514 /** 2515 * \def MBEDTLS_PK_PARSE_C 2516 * 2517 * Enable the generic public (asymetric) key parser. 2518 * 2519 * Module: library/pkparse.c 2520 * Caller: library/x509_crt.c 2521 * library/x509_csr.c 2522 * 2523 * Requires: MBEDTLS_PK_C 2524 * 2525 * Uncomment to enable generic public key parse functions. 2526 */ 2527 #define MBEDTLS_PK_PARSE_C 2528 2529 /** 2530 * \def MBEDTLS_PK_WRITE_C 2531 * 2532 * Enable the generic public (asymetric) key writer. 2533 * 2534 * Module: library/pkwrite.c 2535 * Caller: library/x509write.c 2536 * 2537 * Requires: MBEDTLS_PK_C 2538 * 2539 * Uncomment to enable generic public key write functions. 2540 */ 2541 #define MBEDTLS_PK_WRITE_C 2542 2543 /** 2544 * \def MBEDTLS_PKCS5_C 2545 * 2546 * Enable PKCS#5 functions. 2547 * 2548 * Module: library/pkcs5.c 2549 * 2550 * Requires: MBEDTLS_MD_C 2551 * 2552 * This module adds support for the PKCS#5 functions. 2553 */ 2554 #define MBEDTLS_PKCS5_C 2555 2556 /** 2557 * \def MBEDTLS_PKCS12_C 2558 * 2559 * Enable PKCS#12 PBE functions. 2560 * Adds algorithms for parsing PKCS#8 encrypted private keys 2561 * 2562 * Module: library/pkcs12.c 2563 * Caller: library/pkparse.c 2564 * 2565 * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C, MBEDTLS_MD_C 2566 * 2567 * This module enables PKCS#12 functions. 2568 */ 2569 #define MBEDTLS_PKCS12_C 2570 2571 /** 2572 * \def MBEDTLS_PLATFORM_C 2573 * 2574 * Enable the platform abstraction layer that allows you to re-assign 2575 * functions like calloc(), free(), snprintf(), printf(), fprintf(), exit(). 2576 * 2577 * Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT 2578 * or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned 2579 * above to be specified at runtime or compile time respectively. 2580 * 2581 * \note This abstraction layer must be enabled on Windows (including MSYS2) 2582 * as other module rely on it for a fixed snprintf implementation. 2583 * 2584 * Module: library/platform.c 2585 * Caller: Most other .c files 2586 * 2587 * This module enables abstraction of common (libc) functions. 2588 */ 2589 #define MBEDTLS_PLATFORM_C 2590 2591 /** 2592 * \def MBEDTLS_POLY1305_C 2593 * 2594 * Enable the Poly1305 MAC algorithm. 2595 * 2596 * Module: library/poly1305.c 2597 * Caller: library/chachapoly.c 2598 */ 2599 #define MBEDTLS_POLY1305_C 2600 2601 /** 2602 * \def MBEDTLS_PSA_CRYPTO_C 2603 * 2604 * Enable the Platform Security Architecture cryptography API. 2605 * 2606 * Module: library/psa_crypto.c 2607 * 2608 * Requires: either MBEDTLS_CTR_DRBG_C and MBEDTLS_ENTROPY_C, 2609 * or MBEDTLS_HMAC_DRBG_C and MBEDTLS_ENTROPY_C, 2610 * or MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG. 2611 * 2612 */ 2613 #define MBEDTLS_PSA_CRYPTO_C 2614 2615 /** 2616 * \def MBEDTLS_PSA_CRYPTO_SE_C 2617 * 2618 * Enable secure element support in the Platform Security Architecture 2619 * cryptography API. 2620 * 2621 * \warning This feature is not yet suitable for production. It is provided 2622 * for API evaluation and testing purposes only. 2623 * 2624 * Module: library/psa_crypto_se.c 2625 * 2626 * Requires: MBEDTLS_PSA_CRYPTO_C, MBEDTLS_PSA_CRYPTO_STORAGE_C 2627 * 2628 */ 2629 //#define MBEDTLS_PSA_CRYPTO_SE_C 2630 2631 /** 2632 * \def MBEDTLS_PSA_CRYPTO_STORAGE_C 2633 * 2634 * Enable the Platform Security Architecture persistent key storage. 2635 * 2636 * Module: library/psa_crypto_storage.c 2637 * 2638 * Requires: MBEDTLS_PSA_CRYPTO_C, 2639 * either MBEDTLS_PSA_ITS_FILE_C or a native implementation of 2640 * the PSA ITS interface 2641 */ 2642 #define MBEDTLS_PSA_CRYPTO_STORAGE_C 2643 2644 /** 2645 * \def MBEDTLS_PSA_ITS_FILE_C 2646 * 2647 * Enable the emulation of the Platform Security Architecture 2648 * Internal Trusted Storage (PSA ITS) over files. 2649 * 2650 * Module: library/psa_its_file.c 2651 * 2652 * Requires: MBEDTLS_FS_IO 2653 */ 2654 #define MBEDTLS_PSA_ITS_FILE_C 2655 2656 /** 2657 * \def MBEDTLS_RIPEMD160_C 2658 * 2659 * Enable the RIPEMD-160 hash algorithm. 2660 * 2661 * Module: library/ripemd160.c 2662 * Caller: library/md.c 2663 * 2664 */ 2665 #define MBEDTLS_RIPEMD160_C 2666 2667 /** 2668 * \def MBEDTLS_RSA_C 2669 * 2670 * Enable the RSA public-key cryptosystem. 2671 * 2672 * Module: library/rsa.c 2673 * library/rsa_alt_helpers.c 2674 * Caller: library/ssl_cli.c 2675 * library/ssl_srv.c 2676 * library/ssl_tls.c 2677 * library/x509.c 2678 * 2679 * This module is used by the following key exchanges: 2680 * RSA, DHE-RSA, ECDHE-RSA, RSA-PSK 2681 * 2682 * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C 2683 */ 2684 #define MBEDTLS_RSA_C 2685 2686 /** 2687 * \def MBEDTLS_SHA1_C 2688 * 2689 * Enable the SHA1 cryptographic hash algorithm. 2690 * 2691 * Module: library/sha1.c 2692 * Caller: library/md.c 2693 * library/ssl_cli.c 2694 * library/ssl_srv.c 2695 * library/ssl_tls.c 2696 * library/x509write_crt.c 2697 * 2698 * This module is required for TLS 1.2 depending on the handshake parameters, 2699 * and for SHA1-signed certificates. 2700 * 2701 * \warning SHA-1 is considered a weak message digest and its use constitutes 2702 * a security risk. If possible, we recommend avoiding dependencies 2703 * on it, and considering stronger message digests instead. 2704 * 2705 */ 2706 #define MBEDTLS_SHA1_C 2707 2708 /** 2709 * \def MBEDTLS_SHA224_C 2710 * 2711 * Enable the SHA-224 cryptographic hash algorithm. 2712 * 2713 * Requires: MBEDTLS_SHA256_C. The library does not currently support enabling 2714 * SHA-224 without SHA-256. 2715 * 2716 * Module: library/sha256.c 2717 * Caller: library/md.c 2718 * library/ssl_cookie.c 2719 * 2720 * This module adds support for SHA-224. 2721 */ 2722 #define MBEDTLS_SHA224_C 2723 2724 /** 2725 * \def MBEDTLS_SHA256_C 2726 * 2727 * Enable the SHA-256 cryptographic hash algorithm. 2728 * 2729 * Requires: MBEDTLS_SHA224_C. The library does not currently support enabling 2730 * SHA-256 without SHA-224. 2731 * 2732 * Module: library/sha256.c 2733 * Caller: library/entropy.c 2734 * library/md.c 2735 * library/ssl_cli.c 2736 * library/ssl_srv.c 2737 * library/ssl_tls.c 2738 * 2739 * This module adds support for SHA-256. 2740 * This module is required for the SSL/TLS 1.2 PRF function. 2741 */ 2742 #define MBEDTLS_SHA256_C 2743 2744 /** 2745 * \def MBEDTLS_SHA384_C 2746 * 2747 * Enable the SHA-384 cryptographic hash algorithm. 2748 * 2749 * Requires: MBEDTLS_SHA512_C 2750 * 2751 * Module: library/sha512.c 2752 * Caller: library/md.c 2753 * library/ssl_cli.c 2754 * library/ssl_srv.c 2755 * 2756 * Comment to disable SHA-384 2757 */ 2758 #define MBEDTLS_SHA384_C 2759 2760 /** 2761 * \def MBEDTLS_SHA512_C 2762 * 2763 * Enable SHA-512 cryptographic hash algorithms. 2764 * 2765 * Module: library/sha512.c 2766 * Caller: library/entropy.c 2767 * library/md.c 2768 * library/ssl_tls.c 2769 * library/ssl_cookie.c 2770 * 2771 * This module adds support for SHA-512. 2772 */ 2773 #define MBEDTLS_SHA512_C 2774 2775 /** 2776 * \def MBEDTLS_SSL_CACHE_C 2777 * 2778 * Enable simple SSL cache implementation. 2779 * 2780 * Module: library/ssl_cache.c 2781 * Caller: 2782 * 2783 * Requires: MBEDTLS_SSL_CACHE_C 2784 */ 2785 #define MBEDTLS_SSL_CACHE_C 2786 2787 /** 2788 * \def MBEDTLS_SSL_COOKIE_C 2789 * 2790 * Enable basic implementation of DTLS cookies for hello verification. 2791 * 2792 * Module: library/ssl_cookie.c 2793 * Caller: 2794 */ 2795 #define MBEDTLS_SSL_COOKIE_C 2796 2797 /** 2798 * \def MBEDTLS_SSL_TICKET_C 2799 * 2800 * Enable an implementation of TLS server-side callbacks for session tickets. 2801 * 2802 * Module: library/ssl_ticket.c 2803 * Caller: 2804 * 2805 * Requires: MBEDTLS_CIPHER_C 2806 */ 2807 #define MBEDTLS_SSL_TICKET_C 2808 2809 /** 2810 * \def MBEDTLS_SSL_CLI_C 2811 * 2812 * Enable the SSL/TLS client code. 2813 * 2814 * Module: library/ssl_cli.c 2815 * Caller: 2816 * 2817 * Requires: MBEDTLS_SSL_TLS_C 2818 * 2819 * This module is required for SSL/TLS client support. 2820 */ 2821 #define MBEDTLS_SSL_CLI_C 2822 2823 /** 2824 * \def MBEDTLS_SSL_SRV_C 2825 * 2826 * Enable the SSL/TLS server code. 2827 * 2828 * Module: library/ssl_srv.c 2829 * Caller: 2830 * 2831 * Requires: MBEDTLS_SSL_TLS_C 2832 * 2833 * This module is required for SSL/TLS server support. 2834 */ 2835 #define MBEDTLS_SSL_SRV_C 2836 2837 /** 2838 * \def MBEDTLS_SSL_TLS_C 2839 * 2840 * Enable the generic SSL/TLS code. 2841 * 2842 * Module: library/ssl_tls.c 2843 * Caller: library/ssl_cli.c 2844 * library/ssl_srv.c 2845 * 2846 * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C 2847 * and at least one of the MBEDTLS_SSL_PROTO_XXX defines 2848 * 2849 * This module is required for SSL/TLS. 2850 */ 2851 #define MBEDTLS_SSL_TLS_C 2852 2853 /** 2854 * \def MBEDTLS_THREADING_C 2855 * 2856 * Enable the threading abstraction layer. 2857 * By default mbed TLS assumes it is used in a non-threaded environment or that 2858 * contexts are not shared between threads. If you do intend to use contexts 2859 * between threads, you will need to enable this layer to prevent race 2860 * conditions. See also our Knowledge Base article about threading: 2861 * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading 2862 * 2863 * Module: library/threading.c 2864 * 2865 * This allows different threading implementations (self-implemented or 2866 * provided). 2867 * 2868 * You will have to enable either MBEDTLS_THREADING_ALT or 2869 * MBEDTLS_THREADING_PTHREAD. 2870 * 2871 * Enable this layer to allow use of mutexes within mbed TLS 2872 */ 2873 //#define MBEDTLS_THREADING_C 2874 2875 /** 2876 * \def MBEDTLS_TIMING_C 2877 * 2878 * Enable the semi-portable timing interface. 2879 * 2880 * \note The provided implementation only works on POSIX/Unix (including Linux, 2881 * BSD and OS X) and Windows. On other platforms, you can either disable that 2882 * module and provide your own implementations of the callbacks needed by 2883 * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide 2884 * your own implementation of the whole module by setting 2885 * \c MBEDTLS_TIMING_ALT in the current file. 2886 * 2887 * \note See also our Knowledge Base article about porting to a new 2888 * environment: 2889 * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS 2890 * 2891 * Module: library/timing.c 2892 */ 2893 #define MBEDTLS_TIMING_C 2894 2895 /** 2896 * \def MBEDTLS_VERSION_C 2897 * 2898 * Enable run-time version information. 2899 * 2900 * Module: library/version.c 2901 * 2902 * This module provides run-time version information. 2903 */ 2904 #define MBEDTLS_VERSION_C 2905 2906 /** 2907 * \def MBEDTLS_X509_USE_C 2908 * 2909 * Enable X.509 core for using certificates. 2910 * 2911 * Module: library/x509.c 2912 * Caller: library/x509_crl.c 2913 * library/x509_crt.c 2914 * library/x509_csr.c 2915 * 2916 * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, 2917 * MBEDTLS_PK_PARSE_C 2918 * 2919 * This module is required for the X.509 parsing modules. 2920 */ 2921 #define MBEDTLS_X509_USE_C 2922 2923 /** 2924 * \def MBEDTLS_X509_CRT_PARSE_C 2925 * 2926 * Enable X.509 certificate parsing. 2927 * 2928 * Module: library/x509_crt.c 2929 * Caller: library/ssl_cli.c 2930 * library/ssl_srv.c 2931 * library/ssl_tls.c 2932 * 2933 * Requires: MBEDTLS_X509_USE_C 2934 * 2935 * This module is required for X.509 certificate parsing. 2936 */ 2937 #define MBEDTLS_X509_CRT_PARSE_C 2938 2939 /** 2940 * \def MBEDTLS_X509_CRL_PARSE_C 2941 * 2942 * Enable X.509 CRL parsing. 2943 * 2944 * Module: library/x509_crl.c 2945 * Caller: library/x509_crt.c 2946 * 2947 * Requires: MBEDTLS_X509_USE_C 2948 * 2949 * This module is required for X.509 CRL parsing. 2950 */ 2951 #define MBEDTLS_X509_CRL_PARSE_C 2952 2953 /** 2954 * \def MBEDTLS_X509_CSR_PARSE_C 2955 * 2956 * Enable X.509 Certificate Signing Request (CSR) parsing. 2957 * 2958 * Module: library/x509_csr.c 2959 * Caller: library/x509_crt_write.c 2960 * 2961 * Requires: MBEDTLS_X509_USE_C 2962 * 2963 * This module is used for reading X.509 certificate request. 2964 */ 2965 #define MBEDTLS_X509_CSR_PARSE_C 2966 2967 /** 2968 * \def MBEDTLS_X509_CREATE_C 2969 * 2970 * Enable X.509 core for creating certificates. 2971 * 2972 * Module: library/x509_create.c 2973 * 2974 * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C 2975 * 2976 * This module is the basis for creating X.509 certificates and CSRs. 2977 */ 2978 #define MBEDTLS_X509_CREATE_C 2979 2980 /** 2981 * \def MBEDTLS_X509_CRT_WRITE_C 2982 * 2983 * Enable creating X.509 certificates. 2984 * 2985 * Module: library/x509_crt_write.c 2986 * 2987 * Requires: MBEDTLS_X509_CREATE_C 2988 * 2989 * This module is required for X.509 certificate creation. 2990 */ 2991 #define MBEDTLS_X509_CRT_WRITE_C 2992 2993 /** 2994 * \def MBEDTLS_X509_CSR_WRITE_C 2995 * 2996 * Enable creating X.509 Certificate Signing Requests (CSR). 2997 * 2998 * Module: library/x509_csr_write.c 2999 * 3000 * Requires: MBEDTLS_X509_CREATE_C 3001 * 3002 * This module is required for X.509 certificate request writing. 3003 */ 3004 #define MBEDTLS_X509_CSR_WRITE_C 3005 3006 /* \} name SECTION: mbed TLS modules */ 3007 3008 /** 3009 * \name SECTION: Module configuration options 3010 * 3011 * This section allows for the setting of module specific sizes and 3012 * configuration options. The default values are already present in the 3013 * relevant header files and should suffice for the regular use cases. 3014 * 3015 * Our advice is to enable options and change their values here 3016 * only if you have a good reason and know the consequences. 3017 * 3018 * Please check the respective header file for documentation on these 3019 * parameters (to prevent duplicate documentation). 3020 * \{ 3021 */ 3022 3023 /* MPI / BIGNUM options */ 3024 //#define MBEDTLS_MPI_WINDOW_SIZE 6 /**< Maximum window size used. */ 3025 //#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */ 3026 3027 /* CTR_DRBG options */ 3028 //#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */ 3029 //#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ 3030 //#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ 3031 //#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ 3032 //#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ 3033 3034 /* HMAC_DRBG options */ 3035 //#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */ 3036 //#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */ 3037 //#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */ 3038 //#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */ 3039 3040 /* ECP options */ 3041 //#define MBEDTLS_ECP_WINDOW_SIZE 4 /**< Maximum window size used */ 3042 //#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up */ 3043 3044 /* Entropy options */ 3045 //#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */ 3046 //#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */ 3047 //#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */ 3048 3049 /* Memory buffer allocator options */ 3050 //#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */ 3051 3052 /* Platform options */ 3053 //#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. */ 3054 //#define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< Default allocator to use, can be undefined */ 3055 //#define MBEDTLS_PLATFORM_STD_FREE free /**< Default free to use, can be undefined */ 3056 //#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use, can be undefined */ 3057 //#define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ 3058 //#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use, can be undefined */ 3059 //#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use, can be undefined */ 3060 /* Note: your snprintf must correctly zero-terminate the buffer! */ 3061 //#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use, can be undefined */ 3062 //#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS 0 /**< Default exit value to use, can be undefined */ 3063 //#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE 1 /**< Default exit value to use, can be undefined */ 3064 //#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ 3065 //#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ 3066 //#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" /**< Seed file to read/write with default implementation */ 3067 3068 /* To Use Function Macros MBEDTLS_PLATFORM_C must be enabled */ 3069 /* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */ 3070 //#define MBEDTLS_PLATFORM_CALLOC_MACRO calloc /**< Default allocator macro to use, can be undefined */ 3071 //#define MBEDTLS_PLATFORM_FREE_MACRO free /**< Default free macro to use, can be undefined */ 3072 //#define MBEDTLS_PLATFORM_EXIT_MACRO exit /**< Default exit macro to use, can be undefined */ 3073 //#define MBEDTLS_PLATFORM_TIME_MACRO time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ 3074 //#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */ 3075 //#define MBEDTLS_PLATFORM_FPRINTF_MACRO fprintf /**< Default fprintf macro to use, can be undefined */ 3076 //#define MBEDTLS_PLATFORM_PRINTF_MACRO printf /**< Default printf macro to use, can be undefined */ 3077 /* Note: your snprintf must correctly zero-terminate the buffer! */ 3078 //#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf /**< Default snprintf macro to use, can be undefined */ 3079 //#define MBEDTLS_PLATFORM_VSNPRINTF_MACRO vsnprintf /**< Default vsnprintf macro to use, can be undefined */ 3080 //#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */ 3081 //#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */ 3082 3083 /** \def MBEDTLS_CHECK_RETURN 3084 * 3085 * This macro is used at the beginning of the declaration of a function 3086 * to indicate that its return value should be checked. It should 3087 * instruct the compiler to emit a warning or an error if the function 3088 * is called without checking its return value. 3089 * 3090 * There is a default implementation for popular compilers in platform_util.h. 3091 * You can override the default implementation by defining your own here. 3092 * 3093 * If the implementation here is empty, this will effectively disable the 3094 * checking of functions' return values. 3095 */ 3096 //#define MBEDTLS_CHECK_RETURN __attribute__((__warn_unused_result__)) 3097 3098 /** \def MBEDTLS_IGNORE_RETURN 3099 * 3100 * This macro requires one argument, which should be a C function call. 3101 * If that function call would cause a #MBEDTLS_CHECK_RETURN warning, this 3102 * warning is suppressed. 3103 */ 3104 //#define MBEDTLS_IGNORE_RETURN( result ) ((void) !(result)) 3105 3106 /* PSA options */ 3107 /** 3108 * Use HMAC_DRBG with the specified hash algorithm for HMAC_DRBG for the 3109 * PSA crypto subsystem. 3110 * 3111 * If this option is unset: 3112 * - If CTR_DRBG is available, the PSA subsystem uses it rather than HMAC_DRBG. 3113 * - Otherwise, the PSA subsystem uses HMAC_DRBG with either 3114 * #MBEDTLS_MD_SHA512 or #MBEDTLS_MD_SHA256 based on availability and 3115 * on unspecified heuristics. 3116 */ 3117 //#define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA256 3118 3119 /** \def MBEDTLS_PSA_KEY_SLOT_COUNT 3120 * Restrict the PSA library to supporting a maximum amount of simultaneously 3121 * loaded keys. A loaded key is a key stored by the PSA Crypto core as a 3122 * volatile key, or a persistent key which is loaded temporarily by the 3123 * library as part of a crypto operation in flight. 3124 * 3125 * If this option is unset, the library will fall back to a default value of 3126 * 32 keys. 3127 */ 3128 //#define MBEDTLS_PSA_KEY_SLOT_COUNT 32 3129 3130 /* SSL Cache options */ 3131 //#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /**< 1 day */ 3132 //#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /**< Maximum entries in cache */ 3133 3134 /* SSL options */ 3135 3136 /** \def MBEDTLS_SSL_IN_CONTENT_LEN 3137 * 3138 * Maximum length (in bytes) of incoming plaintext fragments. 3139 * 3140 * This determines the size of the incoming TLS I/O buffer in such a way 3141 * that it is capable of holding the specified amount of plaintext data, 3142 * regardless of the protection mechanism used. 3143 * 3144 * \note When using a value less than the default of 16KB on the client, it is 3145 * recommended to use the Maximum Fragment Length (MFL) extension to 3146 * inform the server about this limitation. On the server, there 3147 * is no supported, standardized way of informing the client about 3148 * restriction on the maximum size of incoming messages, and unless 3149 * the limitation has been communicated by other means, it is recommended 3150 * to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN 3151 * while keeping the default value of 16KB for the incoming buffer. 3152 * 3153 * Uncomment to set the maximum plaintext size of the incoming I/O buffer. 3154 */ 3155 //#define MBEDTLS_SSL_IN_CONTENT_LEN 16384 3156 3157 /** \def MBEDTLS_SSL_CID_IN_LEN_MAX 3158 * 3159 * The maximum length of CIDs used for incoming DTLS messages. 3160 * 3161 */ 3162 //#define MBEDTLS_SSL_CID_IN_LEN_MAX 32 3163 3164 /** \def MBEDTLS_SSL_CID_OUT_LEN_MAX 3165 * 3166 * The maximum length of CIDs used for outgoing DTLS messages. 3167 * 3168 */ 3169 //#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32 3170 3171 /** \def MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 3172 * 3173 * This option controls the use of record plaintext padding 3174 * in TLS 1.3 and when using the Connection ID extension in DTLS 1.2. 3175 * 3176 * The padding will always be chosen so that the length of the 3177 * padded plaintext is a multiple of the value of this option. 3178 * 3179 * Note: A value of \c 1 means that no padding will be used 3180 * for outgoing records. 3181 * 3182 * Note: On systems lacking division instructions, 3183 * a power of two should be preferred. 3184 */ 3185 //#define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16 3186 3187 /** \def MBEDTLS_SSL_OUT_CONTENT_LEN 3188 * 3189 * Maximum length (in bytes) of outgoing plaintext fragments. 3190 * 3191 * This determines the size of the outgoing TLS I/O buffer in such a way 3192 * that it is capable of holding the specified amount of plaintext data, 3193 * regardless of the protection mechanism used. 3194 * 3195 * It is possible to save RAM by setting a smaller outward buffer, while keeping 3196 * the default inward 16384 byte buffer to conform to the TLS specification. 3197 * 3198 * The minimum required outward buffer size is determined by the handshake 3199 * protocol's usage. Handshaking will fail if the outward buffer is too small. 3200 * The specific size requirement depends on the configured ciphers and any 3201 * certificate data which is sent during the handshake. 3202 * 3203 * Uncomment to set the maximum plaintext size of the outgoing I/O buffer. 3204 */ 3205 //#define MBEDTLS_SSL_OUT_CONTENT_LEN 16384 3206 3207 /** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING 3208 * 3209 * Maximum number of heap-allocated bytes for the purpose of 3210 * DTLS handshake message reassembly and future message buffering. 3211 * 3212 * This should be at least 9/8 * MBEDTLS_SSL_IN_CONTENT_LEN 3213 * to account for a reassembled handshake message of maximum size, 3214 * together with its reassembly bitmap. 3215 * 3216 * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default) 3217 * should be sufficient for all practical situations as it allows 3218 * to reassembly a large handshake message (such as a certificate) 3219 * while buffering multiple smaller handshake messages. 3220 * 3221 */ 3222 //#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768 3223 3224 //#define MBEDTLS_PSK_MAX_LEN 32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */ 3225 //#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ 3226 3227 /** \def MBEDTLS_TLS_EXT_CID 3228 * 3229 * At the time of writing, the CID extension has not been assigned its 3230 * final value. Set this configuration option to make Mbed TLS use a 3231 * different value. 3232 * 3233 * A future minor revision of Mbed TLS may change the default value of 3234 * this option to match evolving standards and usage. 3235 */ 3236 //#define MBEDTLS_TLS_EXT_CID 254 3237 3238 /** 3239 * Complete list of ciphersuites to use, in order of preference. 3240 * 3241 * \warning No dependency checking is done on that field! This option can only 3242 * be used to restrict the set of available ciphersuites. It is your 3243 * responsibility to make sure the needed modules are active. 3244 * 3245 * Use this to save a few hundred bytes of ROM (default ordering of all 3246 * available ciphersuites) and a few to a few hundred bytes of RAM. 3247 * 3248 * The value below is only an example, not the default. 3249 */ 3250 //#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 3251 3252 /* X509 options */ 3253 //#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 /**< Maximum number of intermediate CAs in a verification chain. */ 3254 //#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */ 3255 3256 /** 3257 * Uncomment the macro to let mbed TLS use your alternate implementation of 3258 * mbedtls_platform_zeroize(). This replaces the default implementation in 3259 * platform_util.c. 3260 * 3261 * mbedtls_platform_zeroize() is a widely used function across the library to 3262 * zero a block of memory. The implementation is expected to be secure in the 3263 * sense that it has been written to prevent the compiler from removing calls 3264 * to mbedtls_platform_zeroize() as part of redundant code elimination 3265 * optimizations. However, it is difficult to guarantee that calls to 3266 * mbedtls_platform_zeroize() will not be optimized by the compiler as older 3267 * versions of the C language standards do not provide a secure implementation 3268 * of memset(). Therefore, MBEDTLS_PLATFORM_ZEROIZE_ALT enables users to 3269 * configure their own implementation of mbedtls_platform_zeroize(), for 3270 * example by using directives specific to their compiler, features from newer 3271 * C standards (e.g using memset_s() in C11) or calling a secure memset() from 3272 * their system (e.g explicit_bzero() in BSD). 3273 */ 3274 //#define MBEDTLS_PLATFORM_ZEROIZE_ALT 3275 3276 /** 3277 * Uncomment the macro to let Mbed TLS use your alternate implementation of 3278 * mbedtls_platform_gmtime_r(). This replaces the default implementation in 3279 * platform_util.c. 3280 * 3281 * gmtime() is not a thread-safe function as defined in the C standard. The 3282 * library will try to use safer implementations of this function, such as 3283 * gmtime_r() when available. However, if Mbed TLS cannot identify the target 3284 * system, the implementation of mbedtls_platform_gmtime_r() will default to 3285 * using the standard gmtime(). In this case, calls from the library to 3286 * gmtime() will be guarded by the global mutex mbedtls_threading_gmtime_mutex 3287 * if MBEDTLS_THREADING_C is enabled. We recommend that calls from outside the 3288 * library are also guarded with this mutex to avoid race conditions. However, 3289 * if the macro MBEDTLS_PLATFORM_GMTIME_R_ALT is defined, Mbed TLS will 3290 * unconditionally use the implementation for mbedtls_platform_gmtime_r() 3291 * supplied at compile time. 3292 */ 3293 //#define MBEDTLS_PLATFORM_GMTIME_R_ALT 3294 3295 /** 3296 * Enable the verified implementations of ECDH primitives from Project Everest 3297 * (currently only Curve25519). This feature changes the layout of ECDH 3298 * contexts and therefore is a compatibility break for applications that access 3299 * fields of a mbedtls_ecdh_context structure directly. See also 3300 * MBEDTLS_ECDH_LEGACY_CONTEXT in include/mbedtls/ecdh.h. 3301 */ 3302 //#define MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED 3303 3304 /* \} name SECTION: Customisation configuration options */ 3305