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4 * \brief Configuration options (set of defines)
6 * This set of compile-time options may be used to enable
7 * or disable features selectively, and reduce the global
11 * Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
12 * SPDX-License-Identifier: GPL-2.0
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 * This file is part of mbed TLS (https://tls.mbed.org)
31 #ifndef MBEDTLS_CONFIG_H
32 #define MBEDTLS_CONFIG_H
34 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)
35 #define _CRT_SECURE_NO_DEPRECATE 1
39 * \name SECTION: System support
41 * This section sets system specific settings.
46 * \def MBEDTLS_HAVE_ASM
48 * The compiler has support for asm().
50 * Requires support for asm() in compiler.
55 * include/mbedtls/bn_mul.h
61 * Comment to disable the use of assembly code.
63 //#define MBEDTLS_HAVE_ASM
66 * \def MBEDTLS_NO_UDBL_DIVISION
68 * The platform lacks support for double-width integer division (64-bit
69 * division on a 32-bit platform, 128-bit division on a 64-bit platform).
72 * include/mbedtls/bignum.h
75 * The bignum code uses double-width division to speed up some operations.
76 * Double-width division is often implemented in software that needs to
77 * be linked with the program. The presence of a double-width integer
78 * type is usually detected automatically through preprocessor macros,
79 * but the automatic detection cannot know whether the code needs to
80 * and can be linked with an implementation of division for that type.
81 * By default division is assumed to be usable if the type is present.
82 * Uncomment this option to prevent the use of double-width division.
84 * Note that division for the native integer type is always required.
85 * Furthermore, a 64-bit type is always required even on a 32-bit
86 * platform, but it need not support multiplication or division. In some
87 * cases it is also desirable to disable some double-width operations. For
88 * example, if double-width division is implemented in software, disabling
89 * it can reduce code size in some embedded targets.
91 //#define MBEDTLS_NO_UDBL_DIVISION
94 * \def MBEDTLS_NO_64BIT_MULTIPLICATION
96 * The platform lacks support for 32x32 -> 64-bit multiplication.
101 * Some parts of the library may use multiplication of two unsigned 32-bit
102 * operands with a 64-bit result in order to speed up computations. On some
103 * platforms, this is not available in hardware and has to be implemented in
104 * software, usually in a library provided by the toolchain.
106 * Sometimes it is not desirable to have to link to that library. This option
107 * removes the dependency of that library on platforms that lack a hardware
108 * 64-bit multiplier by embedding a software implementation in Mbed TLS.
110 * Note that depending on the compiler, this may decrease performance compared
111 * to using the library function provided by the toolchain.
113 //#define MBEDTLS_NO_64BIT_MULTIPLICATION
116 * \def MBEDTLS_HAVE_SSE2
118 * CPU supports SSE2 instruction set.
120 * Uncomment if the CPU supports SSE2 (IA-32 specific).
122 //#define MBEDTLS_HAVE_SSE2
125 * \def MBEDTLS_HAVE_TIME
127 * System has time.h and time().
128 * The time does not need to be correct, only time differences are used,
129 * by contrast with MBEDTLS_HAVE_TIME_DATE
131 * Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT,
132 * MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and
133 * MBEDTLS_PLATFORM_STD_TIME.
135 * Comment if your system does not support time functions
137 //#define MBEDTLS_HAVE_TIME
140 * \def MBEDTLS_HAVE_TIME_DATE
142 * System has time.h and time(), gmtime() and the clock is correct.
143 * The time needs to be correct (not necesarily very accurate, but at least
144 * the date should be correct). This is used to verify the validity period of
145 * X.509 certificates.
147 * Comment if your system does not have a correct clock.
149 //#define MBEDTLS_HAVE_TIME_DATE
152 * \def MBEDTLS_PLATFORM_MEMORY
154 * Enable the memory allocation layer.
156 * By default mbed TLS uses the system-provided calloc() and free().
157 * This allows different allocators (self-implemented or provided) to be
158 * provided to the platform abstraction layer.
160 * Enabling MBEDTLS_PLATFORM_MEMORY without the
161 * MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide
162 * "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and
163 * free() function pointer at runtime.
165 * Enabling MBEDTLS_PLATFORM_MEMORY and specifying
166 * MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the
167 * alternate function at compile time.
169 * Requires: MBEDTLS_PLATFORM_C
171 * Enable this layer to allow use of alternative memory allocators.
173 //#define MBEDTLS_PLATFORM_MEMORY
176 * \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
178 * Do not assign standard functions in the platform layer (e.g. calloc() to
179 * MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF)
181 * This makes sure there are no linking errors on platforms that do not support
182 * these functions. You will HAVE to provide alternatives, either at runtime
183 * via the platform_set_xxx() functions or at compile time by setting
184 * the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a
185 * MBEDTLS_PLATFORM_XXX_MACRO.
187 * Requires: MBEDTLS_PLATFORM_C
189 * Uncomment to prevent default assignment of standard functions in the
192 //#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
195 * \def MBEDTLS_PLATFORM_EXIT_ALT
197 * MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let mbed TLS support the
198 * function in the platform abstraction layer.
200 * Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, mbed TLS will
201 * provide a function "mbedtls_platform_set_printf()" that allows you to set an
202 * alternative printf function pointer.
204 * All these define require MBEDTLS_PLATFORM_C to be defined!
206 * \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows;
207 * it will be enabled automatically by check_config.h
209 * \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as
210 * MBEDTLS_PLATFORM_XXX_MACRO!
212 * Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME
214 * Uncomment a macro to enable alternate implementation of specific base
217 //#define MBEDTLS_PLATFORM_EXIT_ALT
218 //#define MBEDTLS_PLATFORM_TIME_ALT
219 //#define MBEDTLS_PLATFORM_FPRINTF_ALT
220 //#define MBEDTLS_PLATFORM_PRINTF_ALT
221 //#define MBEDTLS_PLATFORM_SNPRINTF_ALT
222 //#define MBEDTLS_PLATFORM_NV_SEED_ALT
223 //#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT
226 * \def MBEDTLS_DEPRECATED_WARNING
228 * Mark deprecated functions so that they generate a warning if used.
229 * Functions deprecated in one version will usually be removed in the next
230 * version. You can enable this to help you prepare the transition to a new
231 * major version by making sure your code is not using these functions.
233 * This only works with GCC and Clang. With other compilers, you may want to
234 * use MBEDTLS_DEPRECATED_REMOVED
236 * Uncomment to get warnings on using deprecated functions.
238 //#define MBEDTLS_DEPRECATED_WARNING
241 * \def MBEDTLS_DEPRECATED_REMOVED
243 * Remove deprecated functions so that they generate an error if used.
244 * Functions deprecated in one version will usually be removed in the next
245 * version. You can enable this to help you prepare the transition to a new
246 * major version by making sure your code is not using these functions.
248 * Uncomment to get errors on using deprecated functions.
250 //#define MBEDTLS_DEPRECATED_REMOVED
252 /* \} name SECTION: System support */
255 * \name SECTION: mbed TLS feature support
257 * This section sets support for features that are or are not needed
258 * within the modules that are enabled.
263 * \def MBEDTLS_TIMING_ALT
265 * Uncomment to provide your own alternate implementation for mbedtls_timing_hardclock(),
266 * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay()
268 * Only works if you have MBEDTLS_TIMING_C enabled.
270 * You will need to provide a header "timing_alt.h" and an implementation at
273 //#define MBEDTLS_TIMING_ALT
276 * \def MBEDTLS_AES_ALT
278 * MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let mbed TLS use your
279 * alternate core implementation of a symmetric crypto, an arithmetic or hash
280 * module (e.g. platform specific assembly optimized implementations). Keep
281 * in mind that the function prototypes should remain the same.
283 * This replaces the whole module. If you only want to replace one of the
284 * functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags.
286 * Example: In case you uncomment MBEDTLS_AES_ALT, mbed TLS will no longer
287 * provide the "struct mbedtls_aes_context" definition and omit the base
288 * function declarations and implementations. "aes_alt.h" will be included from
289 * "aes.h" to include the new function definitions.
291 * Uncomment a macro to enable alternate implementation of the corresponding
294 * \warning MD2, MD4, MD5, ARC4, DES and SHA-1 are considered weak and their
295 * use constitutes a security risk. If possible, we recommend
296 * avoiding dependencies on them, and considering stronger message
297 * digests and ciphers instead.
300 //#define MBEDTLS_AES_ALT
301 //#define MBEDTLS_ARC4_ALT
302 //#define MBEDTLS_ARIA_ALT
303 //#define MBEDTLS_BLOWFISH_ALT
304 //#define MBEDTLS_CAMELLIA_ALT
305 //#define MBEDTLS_CCM_ALT
306 //#define MBEDTLS_CHACHA20_ALT
307 //#define MBEDTLS_CHACHAPOLY_ALT
308 //#define MBEDTLS_CMAC_ALT
309 //#define MBEDTLS_DES_ALT
310 //#define MBEDTLS_DHM_ALT
311 //#define MBEDTLS_ECJPAKE_ALT
312 //#define MBEDTLS_GCM_ALT
313 //#define MBEDTLS_NIST_KW_ALT
314 //#define MBEDTLS_MD2_ALT
315 //#define MBEDTLS_MD4_ALT
316 //#define MBEDTLS_MD5_ALT
317 //#define MBEDTLS_POLY1305_ALT
318 //#define MBEDTLS_RIPEMD160_ALT
319 //#define MBEDTLS_RSA_ALT
320 //#define MBEDTLS_SHA1_ALT
321 //#define MBEDTLS_SHA256_ALT
322 //#define MBEDTLS_SHA512_ALT
323 //#define MBEDTLS_XTEA_ALT
326 * When replacing the elliptic curve module, pleace consider, that it is
327 * implemented with two .c files:
330 * You can replace them very much like all the other MBEDTLS__MODULE_NAME__ALT
331 * macros as described above. The only difference is that you have to make sure
332 * that you provide functionality for both .c files.
334 //#define MBEDTLS_ECP_ALT
337 * \def MBEDTLS_MD2_PROCESS_ALT
339 * MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use you
340 * alternate core implementation of symmetric crypto or hash function. Keep in
341 * mind that function prototypes should remain the same.
343 * This replaces only one function. The header file from mbed TLS is still
344 * used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags.
346 * Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, mbed TLS will
347 * no longer provide the mbedtls_sha1_process() function, but it will still provide
348 * the other function (using your mbedtls_sha1_process() function) and the definition
349 * of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible
350 * with this definition.
352 * \note Because of a signature change, the core AES encryption and decryption routines are
353 * currently named mbedtls_aes_internal_encrypt and mbedtls_aes_internal_decrypt,
354 * respectively. When setting up alternative implementations, these functions should
355 * be overriden, but the wrapper functions mbedtls_aes_decrypt and mbedtls_aes_encrypt
356 * must stay untouched.
358 * \note If you use the AES_xxx_ALT macros, then is is recommended to also set
359 * MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES
362 * Uncomment a macro to enable alternate implementation of the corresponding
365 * \warning MD2, MD4, MD5, DES and SHA-1 are considered weak and their use
366 * constitutes a security risk. If possible, we recommend avoiding
367 * dependencies on them, and considering stronger message digests
368 * and ciphers instead.
371 //#define MBEDTLS_MD2_PROCESS_ALT
372 //#define MBEDTLS_MD4_PROCESS_ALT
373 //#define MBEDTLS_MD5_PROCESS_ALT
374 //#define MBEDTLS_RIPEMD160_PROCESS_ALT
375 //#define MBEDTLS_SHA1_PROCESS_ALT
376 //#define MBEDTLS_SHA256_PROCESS_ALT
377 //#define MBEDTLS_SHA512_PROCESS_ALT
378 //#define MBEDTLS_DES_SETKEY_ALT
379 //#define MBEDTLS_DES_CRYPT_ECB_ALT
380 //#define MBEDTLS_DES3_CRYPT_ECB_ALT
381 //#define MBEDTLS_AES_SETKEY_ENC_ALT
382 //#define MBEDTLS_AES_SETKEY_DEC_ALT
383 //#define MBEDTLS_AES_ENCRYPT_ALT
384 //#define MBEDTLS_AES_DECRYPT_ALT
385 //#define MBEDTLS_ECDH_GEN_PUBLIC_ALT
386 //#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT
387 //#define MBEDTLS_ECDSA_VERIFY_ALT
388 //#define MBEDTLS_ECDSA_SIGN_ALT
389 //#define MBEDTLS_ECDSA_GENKEY_ALT
392 * \def MBEDTLS_ECP_INTERNAL_ALT
394 * Expose a part of the internal interface of the Elliptic Curve Point module.
396 * MBEDTLS_ECP__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use your
397 * alternative core implementation of elliptic curve arithmetic. Keep in mind
398 * that function prototypes should remain the same.
400 * This partially replaces one function. The header file from mbed TLS is still
401 * used, in contrast to the MBEDTLS_ECP_ALT flag. The original implementation
402 * is still present and it is used for group structures not supported by the
405 * Any of these options become available by defining MBEDTLS_ECP_INTERNAL_ALT
406 * and implementing the following functions:
407 * unsigned char mbedtls_internal_ecp_grp_capable(
408 * const mbedtls_ecp_group *grp )
409 * int mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp )
410 * void mbedtls_internal_ecp_deinit( const mbedtls_ecp_group *grp )
411 * The mbedtls_internal_ecp_grp_capable function should return 1 if the
412 * replacement functions implement arithmetic for the given group and 0
414 * The functions mbedtls_internal_ecp_init and mbedtls_internal_ecp_deinit are
415 * called before and after each point operation and provide an opportunity to
416 * implement optimized set up and tear down instructions.
418 * Example: In case you uncomment MBEDTLS_ECP_INTERNAL_ALT and
419 * MBEDTLS_ECP_DOUBLE_JAC_ALT, mbed TLS will still provide the ecp_double_jac
420 * function, but will use your mbedtls_internal_ecp_double_jac if the group is
421 * supported (your mbedtls_internal_ecp_grp_capable function returns 1 when
422 * receives it as an argument). If the group is not supported then the original
423 * implementation is used. The other functions and the definition of
424 * mbedtls_ecp_group and mbedtls_ecp_point will not change, so your
425 * implementation of mbedtls_internal_ecp_double_jac and
426 * mbedtls_internal_ecp_grp_capable must be compatible with this definition.
428 * Uncomment a macro to enable alternate implementation of the corresponding
431 /* Required for all the functions in this section */
432 //#define MBEDTLS_ECP_INTERNAL_ALT
433 /* Support for Weierstrass curves with Jacobi representation */
434 //#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT
435 //#define MBEDTLS_ECP_ADD_MIXED_ALT
436 //#define MBEDTLS_ECP_DOUBLE_JAC_ALT
437 //#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT
438 //#define MBEDTLS_ECP_NORMALIZE_JAC_ALT
439 /* Support for curves with Montgomery arithmetic */
440 //#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT
441 //#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT
442 //#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT
445 * \def MBEDTLS_TEST_NULL_ENTROPY
447 * Enables testing and use of mbed TLS without any configured entropy sources.
448 * This permits use of the library on platforms before an entropy source has
449 * been integrated (see for example the MBEDTLS_ENTROPY_HARDWARE_ALT or the
450 * MBEDTLS_ENTROPY_NV_SEED switches).
452 * WARNING! This switch MUST be disabled in production builds, and is suitable
453 * only for development.
454 * Enabling the switch negates any security provided by the library.
456 * Requires MBEDTLS_ENTROPY_C, MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
459 //#define MBEDTLS_TEST_NULL_ENTROPY
462 * \def MBEDTLS_ENTROPY_HARDWARE_ALT
464 * Uncomment this macro to let mbed TLS use your own implementation of a
465 * hardware entropy collector.
467 * Your function must be called \c mbedtls_hardware_poll(), have the same
468 * prototype as declared in entropy_poll.h, and accept NULL as first argument.
470 * Uncomment to use your own hardware entropy collector.
472 //#define MBEDTLS_ENTROPY_HARDWARE_ALT
475 * \def MBEDTLS_AES_ROM_TABLES
477 * Use precomputed AES tables stored in ROM.
479 * Uncomment this macro to use precomputed AES tables stored in ROM.
480 * Comment this macro to generate AES tables in RAM at runtime.
482 * Tradeoff: Using precomputed ROM tables reduces RAM usage by ~8kb
483 * (or ~2kb if \c MBEDTLS_AES_FEWER_TABLES is used) and reduces the
484 * initialization time before the first AES operation can be performed.
485 * It comes at the cost of additional ~8kb ROM use (resp. ~2kb if \c
486 * MBEDTLS_AES_FEWER_TABLES below is used), and potentially degraded
487 * performance if ROM access is slower than RAM access.
489 * This option is independent of \c MBEDTLS_AES_FEWER_TABLES.
492 //#define MBEDTLS_AES_ROM_TABLES
495 * \def MBEDTLS_AES_FEWER_TABLES
497 * Use less ROM/RAM for AES tables.
499 * Uncommenting this macro omits 75% of the AES tables from
500 * ROM / RAM (depending on the value of \c MBEDTLS_AES_ROM_TABLES)
501 * by computing their values on the fly during operations
502 * (the tables are entry-wise rotations of one another).
504 * Tradeoff: Uncommenting this reduces the RAM / ROM footprint
505 * by ~6kb but at the cost of more arithmetic operations during
506 * runtime. Specifically, one has to compare 4 accesses within
507 * different tables to 4 accesses with additional arithmetic
508 * operations within the same table. The performance gain/loss
509 * depends on the system and memory details.
511 * This option is independent of \c MBEDTLS_AES_ROM_TABLES.
514 //#define MBEDTLS_AES_FEWER_TABLES
517 * \def MBEDTLS_CAMELLIA_SMALL_MEMORY
519 * Use less ROM for the Camellia implementation (saves about 768 bytes).
521 * Uncomment this macro to use less memory for Camellia.
523 //#define MBEDTLS_CAMELLIA_SMALL_MEMORY
526 * \def MBEDTLS_CIPHER_MODE_CBC
528 * Enable Cipher Block Chaining mode (CBC) for symmetric ciphers.
530 #define MBEDTLS_CIPHER_MODE_CBC
533 * \def MBEDTLS_CIPHER_MODE_CFB
535 * Enable Cipher Feedback mode (CFB) for symmetric ciphers.
537 #define MBEDTLS_CIPHER_MODE_CFB
540 * \def MBEDTLS_CIPHER_MODE_CTR
542 * Enable Counter Block Cipher mode (CTR) for symmetric ciphers.
544 #define MBEDTLS_CIPHER_MODE_CTR
547 * \def MBEDTLS_CIPHER_MODE_OFB
549 * Enable Output Feedback mode (OFB) for symmetric ciphers.
551 #define MBEDTLS_CIPHER_MODE_OFB
554 * \def MBEDTLS_CIPHER_MODE_XTS
556 * Enable Xor-encrypt-xor with ciphertext stealing mode (XTS) for AES.
558 #define MBEDTLS_CIPHER_MODE_XTS
561 * \def MBEDTLS_CIPHER_NULL_CIPHER
563 * Enable NULL cipher.
564 * Warning: Only do so when you know what you are doing. This allows for
565 * encryption or channels without any security!
567 * Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable
568 * the following ciphersuites:
569 * MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA
570 * MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA
571 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA
572 * MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA
573 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384
574 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256
575 * MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA
576 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384
577 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256
578 * MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA
579 * MBEDTLS_TLS_RSA_WITH_NULL_SHA256
580 * MBEDTLS_TLS_RSA_WITH_NULL_SHA
581 * MBEDTLS_TLS_RSA_WITH_NULL_MD5
582 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384
583 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256
584 * MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA
585 * MBEDTLS_TLS_PSK_WITH_NULL_SHA384
586 * MBEDTLS_TLS_PSK_WITH_NULL_SHA256
587 * MBEDTLS_TLS_PSK_WITH_NULL_SHA
589 * Uncomment this macro to enable the NULL cipher and ciphersuites
591 //#define MBEDTLS_CIPHER_NULL_CIPHER
594 * \def MBEDTLS_CIPHER_PADDING_PKCS7
596 * MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for
597 * specific padding modes in the cipher layer with cipher modes that support
600 * If you disable all padding modes, only full blocks can be used with CBC.
602 * Enable padding modes in the cipher layer.
604 #define MBEDTLS_CIPHER_PADDING_PKCS7
605 #define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS
606 #define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN
607 #define MBEDTLS_CIPHER_PADDING_ZEROS
610 * \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES
612 * Enable weak ciphersuites in SSL / TLS.
613 * Warning: Only do so when you know what you are doing. This allows for
614 * channels with virtually no security at all!
616 * This enables the following ciphersuites:
617 * MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA
618 * MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA
620 * Uncomment this macro to enable weak ciphersuites
622 * \warning DES is considered a weak cipher and its use constitutes a
623 * security risk. We recommend considering stronger ciphers instead.
625 //#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES
628 * \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES
630 * Remove RC4 ciphersuites by default in SSL / TLS.
631 * This flag removes the ciphersuites based on RC4 from the default list as
632 * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to
633 * enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them
636 * Uncomment this macro to remove RC4 ciphersuites by default.
638 #define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
641 * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED
643 * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve
644 * module. By default all supported curves are enabled.
646 * Comment macros to disable the curve and functions for it
648 #define MBEDTLS_ECP_DP_SECP128R1_ENABLED
649 #define MBEDTLS_ECP_DP_SECP192R1_ENABLED
650 #define MBEDTLS_ECP_DP_SECP224R1_ENABLED
651 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED
652 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED
653 #define MBEDTLS_ECP_DP_SECP521R1_ENABLED
654 #define MBEDTLS_ECP_DP_SECP192K1_ENABLED
655 #define MBEDTLS_ECP_DP_SECP224K1_ENABLED
656 #define MBEDTLS_ECP_DP_SECP256K1_ENABLED
657 #define MBEDTLS_ECP_DP_BP256R1_ENABLED
658 #define MBEDTLS_ECP_DP_BP384R1_ENABLED
659 #define MBEDTLS_ECP_DP_BP512R1_ENABLED
660 #define MBEDTLS_ECP_DP_CURVE25519_ENABLED
661 #define MBEDTLS_ECP_DP_CURVE448_ENABLED
664 * \def MBEDTLS_ECP_NIST_OPTIM
666 * Enable specific 'modulo p' routines for each NIST prime.
667 * Depending on the prime and architecture, makes operations 4 to 8 times
668 * faster on the corresponding curve.
670 * Comment this macro to disable NIST curves optimisation.
672 #define MBEDTLS_ECP_NIST_OPTIM
675 * \def MBEDTLS_ECDSA_DETERMINISTIC
677 * Enable deterministic ECDSA (RFC 6979).
678 * Standard ECDSA is "fragile" in the sense that lack of entropy when signing
679 * may result in a compromise of the long-term signing key. This is avoided by
680 * the deterministic variant.
682 * Requires: MBEDTLS_HMAC_DRBG_C
684 * Comment this macro to disable deterministic ECDSA.
686 //#define MBEDTLS_ECDSA_DETERMINISTIC
689 * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
691 * Enable the PSK based ciphersuite modes in SSL / TLS.
693 * This enables the following ciphersuites (if other requisites are
695 * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
696 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
697 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
698 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
699 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
700 * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
701 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
702 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
703 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
704 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
705 * MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
706 * MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
708 #define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
711 * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
713 * Enable the DHE-PSK based ciphersuite modes in SSL / TLS.
715 * Requires: MBEDTLS_DHM_C
717 * This enables the following ciphersuites (if other requisites are
719 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
720 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
721 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
722 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
723 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
724 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
725 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
726 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
727 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
728 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
729 * MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
730 * MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
732 * \warning Using DHE constitutes a security risk as it
733 * is not possible to validate custom DH parameters.
734 * If possible, it is recommended users should consider
735 * preferring other methods of key exchange.
736 * See dhm.h for more details.
739 //#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
742 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
744 * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS.
746 * Requires: MBEDTLS_ECDH_C
748 * This enables the following ciphersuites (if other requisites are
750 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
751 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
752 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
753 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
754 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
755 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
756 * MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
757 * MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
759 #define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
762 * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
764 * Enable the RSA-PSK based ciphersuite modes in SSL / TLS.
766 * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
767 * MBEDTLS_X509_CRT_PARSE_C
769 * This enables the following ciphersuites (if other requisites are
771 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
772 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
773 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
774 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
775 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
776 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
777 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
778 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
779 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
780 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
781 * MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
782 * MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
784 #define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
787 * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
789 * Enable the RSA-only based ciphersuite modes in SSL / TLS.
791 * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
792 * MBEDTLS_X509_CRT_PARSE_C
794 * This enables the following ciphersuites (if other requisites are
796 * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
797 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
798 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
799 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
800 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
801 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
802 * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
803 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
804 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
805 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
806 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
807 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
808 * MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
809 * MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
810 * MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
812 #define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
815 * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
817 * Enable the DHE-RSA based ciphersuite modes in SSL / TLS.
819 * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
820 * MBEDTLS_X509_CRT_PARSE_C
822 * This enables the following ciphersuites (if other requisites are
824 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
825 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
826 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
827 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
828 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
829 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
830 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
831 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
832 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
833 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
834 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
835 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
836 * MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
838 * \warning Using DHE constitutes a security risk as it
839 * is not possible to validate custom DH parameters.
840 * If possible, it is recommended users should consider
841 * preferring other methods of key exchange.
842 * See dhm.h for more details.
845 //#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
848 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
850 * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS.
852 * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
853 * MBEDTLS_X509_CRT_PARSE_C
855 * This enables the following ciphersuites (if other requisites are
857 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
858 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
859 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
860 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
861 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
862 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
863 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
864 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
865 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
866 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
867 * MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
868 * MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
870 #define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
873 * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
875 * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS.
877 * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C,
879 * This enables the following ciphersuites (if other requisites are
881 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
882 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
883 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
884 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
885 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
886 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
887 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
888 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
889 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
890 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
891 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
892 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
894 #define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
897 * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
899 * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS.
901 * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
903 * This enables the following ciphersuites (if other requisites are
905 * MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
906 * MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
907 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
908 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
909 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
910 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
911 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
912 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
913 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
914 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
915 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
916 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
918 #define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
921 * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
923 * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS.
925 * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
927 * This enables the following ciphersuites (if other requisites are
929 * MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
930 * MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
931 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
932 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
933 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
934 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
935 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
936 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
937 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
938 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
939 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
940 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
942 #define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
945 * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
947 * Enable the ECJPAKE based ciphersuite modes in SSL / TLS.
949 * \warning This is currently experimental. EC J-PAKE support is based on the
950 * Thread v1.0.0 specification; incompatible changes to the specification
951 * might still happen. For this reason, this is disabled by default.
953 * Requires: MBEDTLS_ECJPAKE_C
955 * MBEDTLS_ECP_DP_SECP256R1_ENABLED
957 * This enables the following ciphersuites (if other requisites are
959 * MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
961 //#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
964 * \def MBEDTLS_PK_PARSE_EC_EXTENDED
966 * Enhance support for reading EC keys using variants of SEC1 not allowed by
967 * RFC 5915 and RFC 5480.
969 * Currently this means parsing the SpecifiedECDomain choice of EC
970 * parameters (only known groups are supported, not arbitrary domains, to
971 * avoid validation issues).
973 * Disable if you only need to support RFC 5915 + 5480 key formats.
975 #define MBEDTLS_PK_PARSE_EC_EXTENDED
978 * \def MBEDTLS_ERROR_STRERROR_DUMMY
980 * Enable a dummy error function to make use of mbedtls_strerror() in
981 * third party libraries easier when MBEDTLS_ERROR_C is disabled
982 * (no effect when MBEDTLS_ERROR_C is enabled).
984 * You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're
985 * not using mbedtls_strerror() or error_strerror() in your application.
987 * Disable if you run into name conflicts and want to really remove the
990 #define MBEDTLS_ERROR_STRERROR_DUMMY
993 * \def MBEDTLS_GENPRIME
995 * Enable the prime-number generation code.
997 * Requires: MBEDTLS_BIGNUM_C
999 #define MBEDTLS_GENPRIME
1002 * \def MBEDTLS_FS_IO
1004 * Enable functions that use the filesystem.
1006 #define MBEDTLS_FS_IO
1009 * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
1011 * Do not add default entropy sources. These are the platform specific,
1012 * mbedtls_timing_hardclock and HAVEGE based poll functions.
1014 * This is useful to have more control over the added entropy sources in an
1017 * Uncomment this macro to prevent loading of default entropy functions.
1019 //#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
1022 * \def MBEDTLS_NO_PLATFORM_ENTROPY
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.
1028 * Uncomment this macro to disable the built-in platform entropy functions.
1030 //#define MBEDTLS_NO_PLATFORM_ENTROPY
1033 * \def MBEDTLS_ENTROPY_FORCE_SHA256
1035 * Force the entropy accumulator to use a SHA-256 accumulator instead of the
1036 * default SHA-512 based one (if both are available).
1038 * Requires: MBEDTLS_SHA256_C
1040 * On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option
1041 * if you have performance concerns.
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.
1046 //#define MBEDTLS_ENTROPY_FORCE_SHA256
1049 * \def MBEDTLS_ENTROPY_NV_SEED
1051 * Enable the non-volatile (NV) seed file-based entropy source.
1052 * (Also enables the NV seed read/write functions in the platform layer)
1054 * This is crucial (if not required) on systems that do not have a
1055 * cryptographic entropy source (in hardware or kernel) available.
1057 * Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C
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.
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.
1071 * \note The entropy collector will write to the seed file before entropy is
1072 * given to an external source, to update it.
1074 //#define MBEDTLS_ENTROPY_NV_SEED
1077 * \def MBEDTLS_MEMORY_DEBUG
1079 * Enable debugging of buffer allocator memory issues. Automatically prints
1080 * (to stderr) all (fatal) messages on memory allocation issues. Enables
1081 * function for 'debug output' of allocated memory.
1083 * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
1085 * Uncomment this macro to let the buffer allocator print out error messages.
1087 //#define MBEDTLS_MEMORY_DEBUG
1090 * \def MBEDTLS_MEMORY_BACKTRACE
1092 * Include backtrace information with each allocated block.
1094 * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
1095 * GLIBC-compatible backtrace() an backtrace_symbols() support
1097 * Uncomment this macro to include backtrace information
1099 //#define MBEDTLS_MEMORY_BACKTRACE
1102 * \def MBEDTLS_PK_RSA_ALT_SUPPORT
1104 * Support external private RSA keys (eg from a HSM) in the PK layer.
1106 * Comment this macro to disable support for external private RSA keys.
1108 #define MBEDTLS_PK_RSA_ALT_SUPPORT
1111 * \def MBEDTLS_PKCS1_V15
1113 * Enable support for PKCS#1 v1.5 encoding.
1115 * Requires: MBEDTLS_RSA_C
1117 * This enables support for PKCS#1 v1.5 operations.
1119 #define MBEDTLS_PKCS1_V15
1122 * \def MBEDTLS_PKCS1_V21
1124 * Enable support for PKCS#1 v2.1 encoding.
1126 * Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C
1128 * This enables support for RSAES-OAEP and RSASSA-PSS operations.
1130 #define MBEDTLS_PKCS1_V21
1133 * \def MBEDTLS_RSA_NO_CRT
1135 * Do not use the Chinese Remainder Theorem
1136 * for the RSA private operation.
1138 * Uncomment this macro to disable the use of CRT in RSA.
1141 //#define MBEDTLS_RSA_NO_CRT
1144 * \def MBEDTLS_SELF_TEST
1146 * Enable the checkup functions (*_self_test).
1148 #define MBEDTLS_SELF_TEST
1151 * \def MBEDTLS_SHA256_SMALLER
1153 * Enable an implementation of SHA-256 that has lower ROM footprint but also
1154 * lower performance.
1156 * The default implementation is meant to be a reasonnable compromise between
1157 * performance and size. This version optimizes more aggressively for size at
1158 * the expense of performance. Eg on Cortex-M4 it reduces the size of
1159 * mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about
1162 * Uncomment to enable the smaller implementation of SHA256.
1164 //#define MBEDTLS_SHA256_SMALLER
1167 * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES
1169 * Enable sending of alert messages in case of encountered errors as per RFC.
1170 * If you choose not to send the alert messages, mbed TLS can still communicate
1171 * with other servers, only debugging of failures is harder.
1173 * The advantage of not sending alert messages, is that no information is given
1174 * about reasons for failures thus preventing adversaries of gaining intel.
1176 * Enable sending of all alert messages
1178 #define MBEDTLS_SSL_ALL_ALERT_MESSAGES
1181 * \def MBEDTLS_SSL_ASYNC_PRIVATE
1183 * Enable asynchronous external private key operations in SSL. This allows
1184 * you to configure an SSL connection to call an external cryptographic
1185 * module to perform private key operations instead of performing the
1186 * operation inside the library.
1189 //#define MBEDTLS_SSL_ASYNC_PRIVATE
1192 * \def MBEDTLS_SSL_DEBUG_ALL
1194 * Enable the debug messages in SSL module for all issues.
1195 * Debug messages have been disabled in some places to prevent timing
1196 * attacks due to (unbalanced) debugging function calls.
1198 * If you need all error reporting you should enable this during debugging,
1199 * but remove this for production servers that should log as well.
1201 * Uncomment this macro to report all debug messages on errors introducing
1202 * a timing side-channel.
1205 //#define MBEDTLS_SSL_DEBUG_ALL
1207 /** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC
1209 * Enable support for Encrypt-then-MAC, RFC 7366.
1211 * This allows peers that both support it to use a more robust protection for
1212 * ciphersuites using CBC, providing deep resistance against timing attacks
1213 * on the padding or underlying cipher.
1215 * This only affects CBC ciphersuites, and is useless if none is defined.
1217 * Requires: MBEDTLS_SSL_PROTO_TLS1 or
1218 * MBEDTLS_SSL_PROTO_TLS1_1 or
1219 * MBEDTLS_SSL_PROTO_TLS1_2
1221 * Comment this macro to disable support for Encrypt-then-MAC
1223 #define MBEDTLS_SSL_ENCRYPT_THEN_MAC
1225 /** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET
1227 * Enable support for Extended Master Secret, aka Session Hash
1228 * (draft-ietf-tls-session-hash-02).
1230 * This was introduced as "the proper fix" to the Triple Handshake familiy of
1231 * attacks, but it is recommended to always use it (even if you disable
1232 * renegotiation), since it actually fixes a more fundamental issue in the
1233 * original SSL/TLS design, and has implications beyond Triple Handshake.
1235 * Requires: MBEDTLS_SSL_PROTO_TLS1 or
1236 * MBEDTLS_SSL_PROTO_TLS1_1 or
1237 * MBEDTLS_SSL_PROTO_TLS1_2
1239 * Comment this macro to disable support for Extended Master Secret.
1241 #define MBEDTLS_SSL_EXTENDED_MASTER_SECRET
1244 * \def MBEDTLS_SSL_FALLBACK_SCSV
1246 * Enable support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv-00).
1248 * For servers, it is recommended to always enable this, unless you support
1249 * only one version of TLS, or know for sure that none of your clients
1250 * implements a fallback strategy.
1252 * For clients, you only need this if you're using a fallback strategy, which
1253 * is not recommended in the first place, unless you absolutely need it to
1254 * interoperate with buggy (version-intolerant) servers.
1256 * Comment this macro to disable support for FALLBACK_SCSV
1258 #define MBEDTLS_SSL_FALLBACK_SCSV
1261 * \def MBEDTLS_SSL_HW_RECORD_ACCEL
1263 * Enable hooking functions in SSL module for hardware acceleration of
1264 * individual records.
1266 * Uncomment this macro to enable hooking functions.
1268 //#define MBEDTLS_SSL_HW_RECORD_ACCEL
1271 * \def MBEDTLS_SSL_CBC_RECORD_SPLITTING
1273 * Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0.
1275 * This is a countermeasure to the BEAST attack, which also minimizes the risk
1276 * of interoperability issues compared to sending 0-length records.
1278 * Comment this macro to disable 1/n-1 record splitting.
1280 #define MBEDTLS_SSL_CBC_RECORD_SPLITTING
1283 * \def MBEDTLS_SSL_RENEGOTIATION
1285 * Disable support for TLS renegotiation.
1287 * The two main uses of renegotiation are (1) refresh keys on long-lived
1288 * connections and (2) client authentication after the initial handshake.
1289 * If you don't need renegotiation, it's probably better to disable it, since
1290 * it has been associated with security issues in the past and is easy to
1291 * misuse/misunderstand.
1293 * Comment this to disable support for renegotiation.
1295 * \note Even if this option is disabled, both client and server are aware
1296 * of the Renegotiation Indication Extension (RFC 5746) used to
1297 * prevent the SSL renegotiation attack (see RFC 5746 Sect. 1).
1298 * (See \c mbedtls_ssl_conf_legacy_renegotiation for the
1299 * configuration of this extension).
1302 #define MBEDTLS_SSL_RENEGOTIATION
1305 * \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
1307 * Enable support for receiving and parsing SSLv2 Client Hello messages for the
1308 * SSL Server module (MBEDTLS_SSL_SRV_C).
1310 * Uncomment this macro to enable support for SSLv2 Client Hello messages.
1312 //#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
1315 * \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
1317 * Pick the ciphersuite according to the client's preferences rather than ours
1318 * in the SSL Server module (MBEDTLS_SSL_SRV_C).
1320 * Uncomment this macro to respect client's ciphersuite order
1322 //#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
1325 * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
1327 * Enable support for RFC 6066 max_fragment_length extension in SSL.
1329 * Comment this macro to disable support for the max_fragment_length extension
1331 #define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
1334 * \def MBEDTLS_SSL_PROTO_SSL3
1336 * Enable support for SSL 3.0.
1338 * Requires: MBEDTLS_MD5_C
1341 * Comment this macro to disable support for SSL 3.0
1343 //#define MBEDTLS_SSL_PROTO_SSL3
1346 * \def MBEDTLS_SSL_PROTO_TLS1
1348 * Enable support for TLS 1.0.
1350 * Requires: MBEDTLS_MD5_C
1353 * Comment this macro to disable support for TLS 1.0
1355 #define MBEDTLS_SSL_PROTO_TLS1
1358 * \def MBEDTLS_SSL_PROTO_TLS1_1
1360 * Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled).
1362 * Requires: MBEDTLS_MD5_C
1365 * Comment this macro to disable support for TLS 1.1 / DTLS 1.0
1367 #define MBEDTLS_SSL_PROTO_TLS1_1
1370 * \def MBEDTLS_SSL_PROTO_TLS1_2
1372 * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled).
1374 * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C
1375 * (Depends on ciphersuites)
1377 * Comment this macro to disable support for TLS 1.2 / DTLS 1.2
1379 #define MBEDTLS_SSL_PROTO_TLS1_2
1382 * \def MBEDTLS_SSL_PROTO_DTLS
1384 * Enable support for DTLS (all available versions).
1386 * Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0,
1387 * and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2.
1389 * Requires: MBEDTLS_SSL_PROTO_TLS1_1
1390 * or MBEDTLS_SSL_PROTO_TLS1_2
1392 * Comment this macro to disable support for DTLS
1394 #define MBEDTLS_SSL_PROTO_DTLS
1397 * \def MBEDTLS_SSL_ALPN
1399 * Enable support for RFC 7301 Application Layer Protocol Negotiation.
1401 * Comment this macro to disable support for ALPN.
1403 #define MBEDTLS_SSL_ALPN
1406 * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY
1408 * Enable support for the anti-replay mechanism in DTLS.
1410 * Requires: MBEDTLS_SSL_TLS_C
1411 * MBEDTLS_SSL_PROTO_DTLS
1413 * \warning Disabling this is often a security risk!
1414 * See mbedtls_ssl_conf_dtls_anti_replay() for details.
1416 * Comment this to disable anti-replay in DTLS.
1418 //#define MBEDTLS_SSL_DTLS_ANTI_REPLAY
1421 * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY
1423 * Enable support for HelloVerifyRequest on DTLS servers.
1425 * This feature is highly recommended to prevent DTLS servers being used as
1426 * amplifiers in DoS attacks against other hosts. It should always be enabled
1427 * unless you know for sure amplification cannot be a problem in the
1428 * environment in which your server operates.
1430 * \warning Disabling this can ba a security risk! (see above)
1432 * Requires: MBEDTLS_SSL_PROTO_DTLS
1434 * Comment this to disable support for HelloVerifyRequest.
1436 #define MBEDTLS_SSL_DTLS_HELLO_VERIFY
1439 * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
1441 * Enable server-side support for clients that reconnect from the same port.
1443 * Some clients unexpectedly close the connection and try to reconnect using the
1444 * same source port. This needs special support from the server to handle the
1445 * new connection securely, as described in section 4.2.8 of RFC 6347. This
1446 * flag enables that support.
1448 * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY
1450 * Comment this to disable support for clients reusing the source port.
1452 #define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
1455 * \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT
1457 * Enable support for a limit of records with bad MAC.
1459 * See mbedtls_ssl_conf_dtls_badmac_limit().
1461 * Requires: MBEDTLS_SSL_PROTO_DTLS
1463 //#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT
1466 * \def MBEDTLS_SSL_SESSION_TICKETS
1468 * Enable support for RFC 5077 session tickets in SSL.
1469 * Client-side, provides full support for session tickets (maintainance of a
1470 * session store remains the responsibility of the application, though).
1471 * Server-side, you also need to provide callbacks for writing and parsing
1472 * tickets, including authenticated encryption and key management. Example
1473 * callbacks are provided by MBEDTLS_SSL_TICKET_C.
1475 * Comment this macro to disable support for SSL session tickets
1477 #define MBEDTLS_SSL_SESSION_TICKETS
1480 * \def MBEDTLS_SSL_EXPORT_KEYS
1482 * Enable support for exporting key block and master secret.
1483 * This is required for certain users of TLS, e.g. EAP-TLS.
1485 * Comment this macro to disable support for key export
1487 #define MBEDTLS_SSL_EXPORT_KEYS
1490 * \def MBEDTLS_SSL_SERVER_NAME_INDICATION
1492 * Enable support for RFC 6066 server name indication (SNI) in SSL.
1494 * Requires: MBEDTLS_X509_CRT_PARSE_C
1496 * Comment this macro to disable support for server name indication in SSL
1498 #define MBEDTLS_SSL_SERVER_NAME_INDICATION
1501 * \def MBEDTLS_SSL_TRUNCATED_HMAC
1503 * Enable support for RFC 6066 truncated HMAC in SSL.
1505 * Comment this macro to disable support for truncated HMAC in SSL
1507 #define MBEDTLS_SSL_TRUNCATED_HMAC
1510 * \def MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
1512 * Fallback to old (pre-2.7), non-conforming implementation of the truncated
1513 * HMAC extension which also truncates the HMAC key. Note that this option is
1514 * only meant for a transitory upgrade period and is likely to be removed in
1515 * a future version of the library.
1517 * \warning The old implementation is non-compliant and has a security weakness
1518 * (2^80 brute force attack on the HMAC key used for a single,
1519 * uninterrupted connection). This should only be enabled temporarily
1520 * when (1) the use of truncated HMAC is essential in order to save
1521 * bandwidth, and (2) the peer is an Mbed TLS stack that doesn't use
1522 * the fixed implementation yet (pre-2.7).
1524 * \deprecated This option is deprecated and will likely be removed in a
1525 * future version of Mbed TLS.
1527 * Uncomment to fallback to old, non-compliant truncated HMAC implementation.
1529 * Requires: MBEDTLS_SSL_TRUNCATED_HMAC
1531 //#define MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
1534 * \def MBEDTLS_THREADING_ALT
1536 * Provide your own alternate threading implementation.
1538 * Requires: MBEDTLS_THREADING_C
1540 * Uncomment this to allow your own alternate threading implementation.
1542 //#define MBEDTLS_THREADING_ALT
1545 * \def MBEDTLS_THREADING_PTHREAD
1547 * Enable the pthread wrapper layer for the threading layer.
1549 * Requires: MBEDTLS_THREADING_C
1551 * Uncomment this to enable pthread mutexes.
1553 //#define MBEDTLS_THREADING_PTHREAD
1556 * \def MBEDTLS_VERSION_FEATURES
1558 * Allow run-time checking of compile-time enabled features. Thus allowing users
1559 * to check at run-time if the library is for instance compiled with threading
1560 * support via mbedtls_version_check_feature().
1562 * Requires: MBEDTLS_VERSION_C
1564 * Comment this to disable run-time checking and save ROM space
1566 #define MBEDTLS_VERSION_FEATURES
1569 * \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
1571 * If set, the X509 parser will not break-off when parsing an X509 certificate
1572 * and encountering an extension in a v1 or v2 certificate.
1574 * Uncomment to prevent an error.
1576 //#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
1579 * \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
1581 * If set, the X509 parser will not break-off when parsing an X509 certificate
1582 * and encountering an unknown critical extension.
1584 * \warning Depending on your PKI use, enabling this can be a security risk!
1586 * Uncomment to prevent an error.
1588 //#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
1591 * \def MBEDTLS_X509_CHECK_KEY_USAGE
1593 * Enable verification of the keyUsage extension (CA and leaf certificates).
1595 * Disabling this avoids problems with mis-issued and/or misused
1596 * (intermediate) CA and leaf certificates.
1598 * \warning Depending on your PKI use, disabling this can be a security risk!
1600 * Comment to skip keyUsage checking for both CA and leaf certificates.
1602 #define MBEDTLS_X509_CHECK_KEY_USAGE
1605 * \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
1607 * Enable verification of the extendedKeyUsage extension (leaf certificates).
1609 * Disabling this avoids problems with mis-issued and/or misused certificates.
1611 * \warning Depending on your PKI use, disabling this can be a security risk!
1613 * Comment to skip extendedKeyUsage checking for certificates.
1615 #define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
1618 * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
1620 * Enable parsing and verification of X.509 certificates, CRLs and CSRS
1621 * signed with RSASSA-PSS (aka PKCS#1 v2.1).
1623 * Comment this macro to disallow using RSASSA-PSS in certificates.
1625 #define MBEDTLS_X509_RSASSA_PSS_SUPPORT
1628 * \def MBEDTLS_ZLIB_SUPPORT
1630 * If set, the SSL/TLS module uses ZLIB to support compression and
1631 * decompression of packet data.
1633 * \warning TLS-level compression MAY REDUCE SECURITY! See for example the
1634 * CRIME attack. Before enabling this option, you should examine with care if
1635 * CRIME or similar exploits may be a applicable to your use case.
1637 * \note Currently compression can't be used with DTLS.
1639 * \deprecated This feature is deprecated and will be removed
1640 * in the next major revision of the library.
1642 * Used in: library/ssl_tls.c
1646 * This feature requires zlib library and headers to be present.
1648 * Uncomment to enable use of ZLIB
1650 //#define MBEDTLS_ZLIB_SUPPORT
1651 /* \} name SECTION: mbed TLS feature support */
1654 * \name SECTION: mbed TLS modules
1656 * This section enables or disables entire modules in mbed TLS
1661 * \def MBEDTLS_AESNI_C
1663 * Enable AES-NI support on x86-64.
1665 * Module: library/aesni.c
1666 * Caller: library/aes.c
1668 * Requires: MBEDTLS_HAVE_ASM
1670 * This modules adds support for the AES-NI instructions on x86-64
1672 //#define MBEDTLS_AESNI_C
1675 * \def MBEDTLS_AES_C
1677 * Enable the AES block cipher.
1679 * Module: library/aes.c
1680 * Caller: library/cipher.c
1682 * library/ctr_drbg.c
1684 * This module enables the following ciphersuites (if other requisites are
1686 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
1687 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
1688 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
1689 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
1690 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
1691 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
1692 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
1693 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
1694 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
1695 * MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
1696 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
1697 * MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
1698 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
1699 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
1700 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
1701 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
1702 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
1703 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
1704 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
1705 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
1706 * MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
1707 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
1708 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
1709 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
1710 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
1711 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
1712 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
1713 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
1714 * MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
1715 * MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
1716 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
1717 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
1718 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
1719 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
1720 * MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
1721 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
1722 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
1723 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
1724 * MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
1725 * MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
1726 * MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
1727 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
1728 * MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
1729 * MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
1730 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
1731 * MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
1732 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
1733 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
1734 * MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
1735 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
1736 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
1737 * MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
1738 * MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
1739 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
1740 * MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
1741 * MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
1742 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
1743 * MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
1745 * PEM_PARSE uses AES for decrypting encrypted keys.
1747 #define MBEDTLS_AES_C
1750 * \def MBEDTLS_ARC4_C
1752 * Enable the ARCFOUR stream cipher.
1754 * Module: library/arc4.c
1755 * Caller: library/cipher.c
1757 * This module enables the following ciphersuites (if other requisites are
1759 * MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
1760 * MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
1761 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
1762 * MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
1763 * MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
1764 * MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
1765 * MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
1766 * MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
1767 * MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
1768 * MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
1770 * \warning ARC4 is considered a weak cipher and its use constitutes a
1771 * security risk. If possible, we recommend avoidng dependencies on
1772 * it, and considering stronger ciphers instead.
1775 #define MBEDTLS_ARC4_C
1778 * \def MBEDTLS_ASN1_PARSE_C
1780 * Enable the generic ASN1 parser.
1782 * Module: library/asn1.c
1783 * Caller: library/x509.c
1789 #define MBEDTLS_ASN1_PARSE_C
1792 * \def MBEDTLS_ASN1_WRITE_C
1794 * Enable the generic ASN1 writer.
1796 * Module: library/asn1write.c
1797 * Caller: library/ecdsa.c
1799 * library/x509_create.c
1800 * library/x509write_crt.c
1801 * library/x509write_csr.c
1803 #define MBEDTLS_ASN1_WRITE_C
1806 * \def MBEDTLS_BASE64_C
1808 * Enable the Base64 module.
1810 * Module: library/base64.c
1811 * Caller: library/pem.c
1813 * This module is required for PEM support (required by X.509).
1815 #define MBEDTLS_BASE64_C
1818 * \def MBEDTLS_BIGNUM_C
1820 * Enable the multi-precision integer library.
1822 * Module: library/bignum.c
1823 * Caller: library/dhm.c
1827 * library/rsa_internal.c
1830 * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support.
1832 #define MBEDTLS_BIGNUM_C
1835 * \def MBEDTLS_BLOWFISH_C
1837 * Enable the Blowfish block cipher.
1839 * Module: library/blowfish.c
1841 #define MBEDTLS_BLOWFISH_C
1844 * \def MBEDTLS_CAMELLIA_C
1846 * Enable the Camellia block cipher.
1848 * Module: library/camellia.c
1849 * Caller: library/cipher.c
1851 * This module enables the following ciphersuites (if other requisites are
1853 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
1854 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
1855 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
1856 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
1857 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
1858 * MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
1859 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
1860 * MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
1861 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
1862 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
1863 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
1864 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
1865 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
1866 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
1867 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
1868 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
1869 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
1870 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
1871 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
1872 * MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
1873 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
1874 * MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
1875 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
1876 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
1877 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
1878 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
1879 * MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
1880 * MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
1881 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
1882 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
1883 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
1884 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
1885 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
1886 * MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
1887 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
1888 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
1889 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
1890 * MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
1891 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
1892 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
1893 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
1894 * MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
1896 #define MBEDTLS_CAMELLIA_C
1899 * \def MBEDTLS_ARIA_C
1901 * Enable the ARIA block cipher.
1903 * Module: library/aria.c
1904 * Caller: library/cipher.c
1906 * This module enables the following ciphersuites (if other requisites are
1909 * MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256
1910 * MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384
1911 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256
1912 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384
1913 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256
1914 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384
1915 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256
1916 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384
1917 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256
1918 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384
1919 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256
1920 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384
1921 * MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256
1922 * MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384
1923 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256
1924 * MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384
1925 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256
1926 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384
1927 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256
1928 * MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384
1929 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
1930 * MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
1931 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256
1932 * MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384
1933 * MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256
1934 * MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384
1935 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256
1936 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384
1937 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256
1938 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384
1939 * MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256
1940 * MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384
1941 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256
1942 * MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384
1943 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256
1944 * MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384
1945 * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256
1946 * MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384
1948 //#define MBEDTLS_ARIA_C
1951 * \def MBEDTLS_CCM_C
1953 * Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher.
1955 * Module: library/ccm.c
1957 * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
1959 * This module enables the AES-CCM ciphersuites, if other requisites are
1962 //#define MBEDTLS_CCM_C
1965 * \def MBEDTLS_CERTS_C
1967 * Enable the test certificates.
1969 * Module: library/certs.c
1972 * This module is used for testing (ssl_client/server).
1974 #define MBEDTLS_CERTS_C
1977 * \def MBEDTLS_CHACHA20_C
1979 * Enable the ChaCha20 stream cipher.
1981 * Module: library/chacha20.c
1983 //#define MBEDTLS_CHACHA20_C
1986 * \def MBEDTLS_CHACHAPOLY_C
1988 * Enable the ChaCha20-Poly1305 AEAD algorithm.
1990 * Module: library/chachapoly.c
1992 * This module requires: MBEDTLS_CHACHA20_C, MBEDTLS_POLY1305_C
1994 //#define MBEDTLS_CHACHAPOLY_C
1997 * \def MBEDTLS_CIPHER_C
1999 * Enable the generic cipher layer.
2001 * Module: library/cipher.c
2002 * Caller: library/ssl_tls.c
2004 * Uncomment to enable generic cipher wrappers.
2006 #define MBEDTLS_CIPHER_C
2009 * \def MBEDTLS_CMAC_C
2011 * Enable the CMAC (Cipher-based Message Authentication Code) mode for block
2014 * Module: library/cmac.c
2016 * Requires: MBEDTLS_AES_C or MBEDTLS_DES_C
2019 #define MBEDTLS_CMAC_C
2022 * \def MBEDTLS_CTR_DRBG_C
2024 * Enable the CTR_DRBG AES-256-based random generator.
2026 * Module: library/ctr_drbg.c
2029 * Requires: MBEDTLS_AES_C
2031 * This module provides the CTR_DRBG AES-256 random number generator.
2033 #define MBEDTLS_CTR_DRBG_C
2036 * \def MBEDTLS_DEBUG_C
2038 * Enable the debug functions.
2040 * Module: library/debug.c
2041 * Caller: library/ssl_cli.c
2045 * This module provides debugging functions.
2047 #define MBEDTLS_DEBUG_C
2050 * \def MBEDTLS_DES_C
2052 * Enable the DES block cipher.
2054 * Module: library/des.c
2055 * Caller: library/pem.c
2058 * This module enables the following ciphersuites (if other requisites are
2060 * MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
2061 * MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
2062 * MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
2063 * MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
2064 * MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
2065 * MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
2066 * MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
2067 * MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
2068 * MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
2069 * MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
2071 * PEM_PARSE uses DES/3DES for decrypting encrypted keys.
2073 * \warning DES is considered a weak cipher and its use constitutes a
2074 * security risk. We recommend considering stronger ciphers instead.
2076 #define MBEDTLS_DES_C
2079 * \def MBEDTLS_DHM_C
2081 * Enable the Diffie-Hellman-Merkle module.
2083 * Module: library/dhm.c
2084 * Caller: library/ssl_cli.c
2087 * This module is used by the following key exchanges:
2090 * \warning Using DHE constitutes a security risk as it
2091 * is not possible to validate custom DH parameters.
2092 * If possible, it is recommended users should consider
2093 * preferring other methods of key exchange.
2094 * See dhm.h for more details.
2097 //#define MBEDTLS_DHM_C
2100 * \def MBEDTLS_ECDH_C
2102 * Enable the elliptic curve Diffie-Hellman library.
2104 * Module: library/ecdh.c
2105 * Caller: library/ssl_cli.c
2108 * This module is used by the following key exchanges:
2109 * ECDHE-ECDSA, ECDHE-RSA, DHE-PSK
2111 * Requires: MBEDTLS_ECP_C
2113 #define MBEDTLS_ECDH_C
2116 * \def MBEDTLS_ECDSA_C
2118 * Enable the elliptic curve DSA library.
2120 * Module: library/ecdsa.c
2123 * This module is used by the following key exchanges:
2126 * Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C
2128 #define MBEDTLS_ECDSA_C
2131 * \def MBEDTLS_ECJPAKE_C
2133 * Enable the elliptic curve J-PAKE library.
2135 * \warning This is currently experimental. EC J-PAKE support is based on the
2136 * Thread v1.0.0 specification; incompatible changes to the specification
2137 * might still happen. For this reason, this is disabled by default.
2139 * Module: library/ecjpake.c
2142 * This module is used by the following key exchanges:
2145 * Requires: MBEDTLS_ECP_C, MBEDTLS_MD_C
2147 //#define MBEDTLS_ECJPAKE_C
2150 * \def MBEDTLS_ECP_C
2152 * Enable the elliptic curve over GF(p) library.
2154 * Module: library/ecp.c
2155 * Caller: library/ecdh.c
2159 * Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED
2161 #define MBEDTLS_ECP_C
2164 * \def MBEDTLS_ENTROPY_C
2166 * Enable the platform-specific entropy code.
2168 * Module: library/entropy.c
2171 * Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C
2173 * This module provides a generic entropy pool
2175 #define MBEDTLS_ENTROPY_C
2178 * \def MBEDTLS_ERROR_C
2180 * Enable error code to error string conversion.
2182 * Module: library/error.c
2185 * This module enables mbedtls_strerror().
2187 #define MBEDTLS_ERROR_C
2190 * \def MBEDTLS_GCM_C
2192 * Enable the Galois/Counter Mode (GCM) for AES.
2194 * Module: library/gcm.c
2196 * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
2198 * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other
2199 * requisites are enabled as well.
2201 //#define MBEDTLS_GCM_C
2204 * \def MBEDTLS_HAVEGE_C
2206 * Enable the HAVEGE random generator.
2208 * Warning: the HAVEGE random generator is not suitable for virtualized
2211 * Warning: the HAVEGE random generator is dependent on timing and specific
2212 * processor traits. It is therefore not advised to use HAVEGE as
2213 * your applications primary random generator or primary entropy pool
2214 * input. As a secondary input to your entropy pool, it IS able add
2215 * the (limited) extra entropy it provides.
2217 * Module: library/havege.c
2220 * Requires: MBEDTLS_TIMING_C
2222 * Uncomment to enable the HAVEGE random generator.
2224 //#define MBEDTLS_HAVEGE_C
2227 * \def MBEDTLS_HKDF_C
2229 * Enable the HKDF algorithm (RFC 5869).
2231 * Module: library/hkdf.c
2234 * Requires: MBEDTLS_MD_C
2236 * This module adds support for the Hashed Message Authentication Code
2237 * (HMAC)-based key derivation function (HKDF).
2239 //#define MBEDTLS_HKDF_C
2242 * \def MBEDTLS_HMAC_DRBG_C
2244 * Enable the HMAC_DRBG random generator.
2246 * Module: library/hmac_drbg.c
2249 * Requires: MBEDTLS_MD_C
2251 * Uncomment to enable the HMAC_DRBG random number geerator.
2253 //#define MBEDTLS_HMAC_DRBG_C
2256 * \def MBEDTLS_NIST_KW_C
2258 * Enable the Key Wrapping mode for 128-bit block ciphers,
2259 * as defined in NIST SP 800-38F. Only KW and KWP modes
2260 * are supported. At the moment, only AES is approved by NIST.
2262 * Module: library/nist_kw.c
2264 * Requires: MBEDTLS_AES_C and MBEDTLS_CIPHER_C
2266 //#define MBEDTLS_NIST_KW_C
2271 * Enable the generic message digest layer.
2273 * Module: library/md.c
2276 * Uncomment to enable generic message digest wrappers.
2278 #define MBEDTLS_MD_C
2281 * \def MBEDTLS_MD2_C
2283 * Enable the MD2 hash algorithm.
2285 * Module: library/md2.c
2288 * Uncomment to enable support for (rare) MD2-signed X.509 certs.
2290 * \warning MD2 is considered a weak message digest and its use constitutes a
2291 * security risk. If possible, we recommend avoiding dependencies on
2292 * it, and considering stronger message digests instead.
2295 //#define MBEDTLS_MD2_C
2298 * \def MBEDTLS_MD4_C
2300 * Enable the MD4 hash algorithm.
2302 * Module: library/md4.c
2305 * Uncomment to enable support for (rare) MD4-signed X.509 certs.
2307 * \warning MD4 is considered a weak message digest and its use constitutes a
2308 * security risk. If possible, we recommend avoiding dependencies on
2309 * it, and considering stronger message digests instead.
2312 //#define MBEDTLS_MD4_C
2315 * \def MBEDTLS_MD5_C
2317 * Enable the MD5 hash algorithm.
2319 * Module: library/md5.c
2320 * Caller: library/md.c
2324 * This module is required for SSL/TLS up to version 1.1, and for TLS 1.2
2325 * depending on the handshake parameters. Further, it is used for checking
2326 * MD5-signed certificates, and for PBKDF1 when decrypting PEM-encoded
2329 * \warning MD5 is considered a weak message digest and its use constitutes a
2330 * security risk. If possible, we recommend avoiding dependencies on
2331 * it, and considering stronger message digests instead.
2334 #define MBEDTLS_MD5_C
2337 * \def MBEDTLS_MEMORY_BUFFER_ALLOC_C
2339 * Enable the buffer allocator implementation that makes use of a (stack)
2340 * based buffer to 'allocate' dynamic memory. (replaces calloc() and free()
2343 * Module: library/memory_buffer_alloc.c
2345 * Requires: MBEDTLS_PLATFORM_C
2346 * MBEDTLS_PLATFORM_MEMORY (to use it within mbed TLS)
2348 * Enable this module to enable the buffer memory allocator.
2350 //#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
2353 * \def MBEDTLS_NET_C
2355 * Enable the TCP and UDP over IPv6/IPv4 networking routines.
2357 * \note This module only works on POSIX/Unix (including Linux, BSD and OS X)
2358 * and Windows. For other platforms, you'll want to disable it, and write your
2359 * own networking callbacks to be passed to \c mbedtls_ssl_set_bio().
2361 * \note See also our Knowledge Base article about porting to a new
2363 * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
2365 * Module: library/net_sockets.c
2367 * This module provides networking routines.
2369 //#define MBEDTLS_NET_C
2372 * \def MBEDTLS_OID_C
2374 * Enable the OID database.
2376 * Module: library/oid.c
2377 * Caller: library/asn1write.c
2383 * library/x509_create.c
2384 * library/x509_crl.c
2385 * library/x509_crt.c
2386 * library/x509_csr.c
2387 * library/x509write_crt.c
2388 * library/x509write_csr.c
2390 * This modules translates between OIDs and internal values.
2392 #define MBEDTLS_OID_C
2395 * \def MBEDTLS_PADLOCK_C
2397 * Enable VIA Padlock support on x86.
2399 * Module: library/padlock.c
2400 * Caller: library/aes.c
2402 * Requires: MBEDTLS_HAVE_ASM
2404 * This modules adds support for the VIA PadLock on x86.
2406 //#define MBEDTLS_PADLOCK_C
2409 * \def MBEDTLS_PEM_PARSE_C
2411 * Enable PEM decoding / parsing.
2413 * Module: library/pem.c
2414 * Caller: library/dhm.c
2416 * library/x509_crl.c
2417 * library/x509_crt.c
2418 * library/x509_csr.c
2420 * Requires: MBEDTLS_BASE64_C
2422 * This modules adds support for decoding / parsing PEM files.
2424 #define MBEDTLS_PEM_PARSE_C
2427 * \def MBEDTLS_PEM_WRITE_C
2429 * Enable PEM encoding / writing.
2431 * Module: library/pem.c
2432 * Caller: library/pkwrite.c
2433 * library/x509write_crt.c
2434 * library/x509write_csr.c
2436 * Requires: MBEDTLS_BASE64_C
2438 * This modules adds support for encoding / writing PEM files.
2440 #define MBEDTLS_PEM_WRITE_C
2445 * Enable the generic public (asymetric) key layer.
2447 * Module: library/pk.c
2448 * Caller: library/ssl_tls.c
2452 * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C
2454 * Uncomment to enable generic public key wrappers.
2456 #define MBEDTLS_PK_C
2459 * \def MBEDTLS_PK_PARSE_C
2461 * Enable the generic public (asymetric) key parser.
2463 * Module: library/pkparse.c
2464 * Caller: library/x509_crt.c
2465 * library/x509_csr.c
2467 * Requires: MBEDTLS_PK_C
2469 * Uncomment to enable generic public key parse functions.
2471 #define MBEDTLS_PK_PARSE_C
2474 * \def MBEDTLS_PK_WRITE_C
2476 * Enable the generic public (asymetric) key writer.
2478 * Module: library/pkwrite.c
2479 * Caller: library/x509write.c
2481 * Requires: MBEDTLS_PK_C
2483 * Uncomment to enable generic public key write functions.
2485 #define MBEDTLS_PK_WRITE_C
2488 * \def MBEDTLS_PKCS5_C
2490 * Enable PKCS#5 functions.
2492 * Module: library/pkcs5.c
2494 * Requires: MBEDTLS_MD_C
2496 * This module adds support for the PKCS#5 functions.
2498 #define MBEDTLS_PKCS5_C
2501 * \def MBEDTLS_PKCS11_C
2503 * Enable wrapper for PKCS#11 smartcard support.
2505 * Module: library/pkcs11.c
2506 * Caller: library/pk.c
2508 * Requires: MBEDTLS_PK_C
2510 * This module enables SSL/TLS PKCS #11 smartcard support.
2511 * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
2513 //#define MBEDTLS_PKCS11_C
2516 * \def MBEDTLS_PKCS12_C
2518 * Enable PKCS#12 PBE functions.
2519 * Adds algorithms for parsing PKCS#8 encrypted private keys
2521 * Module: library/pkcs12.c
2522 * Caller: library/pkparse.c
2524 * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C, MBEDTLS_MD_C
2525 * Can use: MBEDTLS_ARC4_C
2527 * This module enables PKCS#12 functions.
2529 #define MBEDTLS_PKCS12_C
2532 * \def MBEDTLS_PLATFORM_C
2534 * Enable the platform abstraction layer that allows you to re-assign
2535 * functions like calloc(), free(), snprintf(), printf(), fprintf(), exit().
2537 * Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT
2538 * or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned
2539 * above to be specified at runtime or compile time respectively.
2541 * \note This abstraction layer must be enabled on Windows (including MSYS2)
2542 * as other module rely on it for a fixed snprintf implementation.
2544 * Module: library/platform.c
2545 * Caller: Most other .c files
2547 * This module enables abstraction of common (libc) functions.
2549 #define MBEDTLS_PLATFORM_C
2552 * \def MBEDTLS_POLY1305_C
2554 * Enable the Poly1305 MAC algorithm.
2556 * Module: library/poly1305.c
2557 * Caller: library/chachapoly.c
2559 //#define MBEDTLS_POLY1305_C
2562 * \def MBEDTLS_RIPEMD160_C
2564 * Enable the RIPEMD-160 hash algorithm.
2566 * Module: library/ripemd160.c
2567 * Caller: library/md.c
2570 //#define MBEDTLS_RIPEMD160_C
2573 * \def MBEDTLS_RSA_C
2575 * Enable the RSA public-key cryptosystem.
2577 * Module: library/rsa.c
2578 * library/rsa_internal.c
2579 * Caller: library/ssl_cli.c
2584 * This module is used by the following key exchanges:
2585 * RSA, DHE-RSA, ECDHE-RSA, RSA-PSK
2587 * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C
2589 #define MBEDTLS_RSA_C
2592 * \def MBEDTLS_SHA1_C
2594 * Enable the SHA1 cryptographic hash algorithm.
2596 * Module: library/sha1.c
2597 * Caller: library/md.c
2601 * library/x509write_crt.c
2603 * This module is required for SSL/TLS up to version 1.1, for TLS 1.2
2604 * depending on the handshake parameters, and for SHA1-signed certificates.
2606 * \warning SHA-1 is considered a weak message digest and its use constitutes
2607 * a security risk. If possible, we recommend avoiding dependencies
2608 * on it, and considering stronger message digests instead.
2611 #define MBEDTLS_SHA1_C
2614 * \def MBEDTLS_SHA256_C
2616 * Enable the SHA-224 and SHA-256 cryptographic hash algorithms.
2618 * Module: library/sha256.c
2619 * Caller: library/entropy.c
2625 * This module adds support for SHA-224 and SHA-256.
2626 * This module is required for the SSL/TLS 1.2 PRF function.
2628 #define MBEDTLS_SHA256_C
2631 * \def MBEDTLS_SHA512_C
2633 * Enable the SHA-384 and SHA-512 cryptographic hash algorithms.
2635 * Module: library/sha512.c
2636 * Caller: library/entropy.c
2641 * This module adds support for SHA-384 and SHA-512.
2643 #define MBEDTLS_SHA512_C
2646 * \def MBEDTLS_SSL_CACHE_C
2648 * Enable simple SSL cache implementation.
2650 * Module: library/ssl_cache.c
2653 * Requires: MBEDTLS_SSL_CACHE_C
2655 #define MBEDTLS_SSL_CACHE_C
2658 * \def MBEDTLS_SSL_COOKIE_C
2660 * Enable basic implementation of DTLS cookies for hello verification.
2662 * Module: library/ssl_cookie.c
2665 #define MBEDTLS_SSL_COOKIE_C
2668 * \def MBEDTLS_SSL_TICKET_C
2670 * Enable an implementation of TLS server-side callbacks for session tickets.
2672 * Module: library/ssl_ticket.c
2675 * Requires: MBEDTLS_CIPHER_C
2677 #define MBEDTLS_SSL_TICKET_C
2680 * \def MBEDTLS_SSL_CLI_C
2682 * Enable the SSL/TLS client code.
2684 * Module: library/ssl_cli.c
2687 * Requires: MBEDTLS_SSL_TLS_C
2689 * This module is required for SSL/TLS client support.
2691 //#define MBEDTLS_SSL_CLI_C
2694 * \def MBEDTLS_SSL_SRV_C
2696 * Enable the SSL/TLS server code.
2698 * Module: library/ssl_srv.c
2701 * Requires: MBEDTLS_SSL_TLS_C
2703 * This module is required for SSL/TLS server support.
2705 //#define MBEDTLS_SSL_SRV_C
2708 * \def MBEDTLS_SSL_TLS_C
2710 * Enable the generic SSL/TLS code.
2712 * Module: library/ssl_tls.c
2713 * Caller: library/ssl_cli.c
2716 * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C
2717 * and at least one of the MBEDTLS_SSL_PROTO_XXX defines
2719 * This module is required for SSL/TLS.
2721 //#define MBEDTLS_SSL_TLS_C
2724 * \def MBEDTLS_THREADING_C
2726 * Enable the threading abstraction layer.
2727 * By default mbed TLS assumes it is used in a non-threaded environment or that
2728 * contexts are not shared between threads. If you do intend to use contexts
2729 * between threads, you will need to enable this layer to prevent race
2730 * conditions. See also our Knowledge Base article about threading:
2731 * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading
2733 * Module: library/threading.c
2735 * This allows different threading implementations (self-implemented or
2738 * You will have to enable either MBEDTLS_THREADING_ALT or
2739 * MBEDTLS_THREADING_PTHREAD.
2741 * Enable this layer to allow use of mutexes within mbed TLS
2743 //#define MBEDTLS_THREADING_C
2746 * \def MBEDTLS_TIMING_C
2748 * Enable the semi-portable timing interface.
2750 * \note The provided implementation only works on POSIX/Unix (including Linux,
2751 * BSD and OS X) and Windows. On other platforms, you can either disable that
2752 * module and provide your own implementations of the callbacks needed by
2753 * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide
2754 * your own implementation of the whole module by setting
2755 * \c MBEDTLS_TIMING_ALT in the current file.
2757 * \note See also our Knowledge Base article about porting to a new
2759 * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
2761 * Module: library/timing.c
2762 * Caller: library/havege.c
2764 * This module is used by the HAVEGE random number generator.
2766 #define MBEDTLS_TIMING_C
2769 * \def MBEDTLS_VERSION_C
2771 * Enable run-time version information.
2773 * Module: library/version.c
2775 * This module provides run-time version information.
2777 #define MBEDTLS_VERSION_C
2780 * \def MBEDTLS_X509_USE_C
2782 * Enable X.509 core for using certificates.
2784 * Module: library/x509.c
2785 * Caller: library/x509_crl.c
2786 * library/x509_crt.c
2787 * library/x509_csr.c
2789 * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C,
2790 * MBEDTLS_PK_PARSE_C
2792 * This module is required for the X.509 parsing modules.
2794 #define MBEDTLS_X509_USE_C
2797 * \def MBEDTLS_X509_CRT_PARSE_C
2799 * Enable X.509 certificate parsing.
2801 * Module: library/x509_crt.c
2802 * Caller: library/ssl_cli.c
2806 * Requires: MBEDTLS_X509_USE_C
2808 * This module is required for X.509 certificate parsing.
2810 #define MBEDTLS_X509_CRT_PARSE_C
2813 * \def MBEDTLS_X509_CRL_PARSE_C
2815 * Enable X.509 CRL parsing.
2817 * Module: library/x509_crl.c
2818 * Caller: library/x509_crt.c
2820 * Requires: MBEDTLS_X509_USE_C
2822 * This module is required for X.509 CRL parsing.
2824 #define MBEDTLS_X509_CRL_PARSE_C
2827 * \def MBEDTLS_X509_CSR_PARSE_C
2829 * Enable X.509 Certificate Signing Request (CSR) parsing.
2831 * Module: library/x509_csr.c
2832 * Caller: library/x509_crt_write.c
2834 * Requires: MBEDTLS_X509_USE_C
2836 * This module is used for reading X.509 certificate request.
2838 #define MBEDTLS_X509_CSR_PARSE_C
2841 * \def MBEDTLS_X509_CREATE_C
2843 * Enable X.509 core for creating certificates.
2845 * Module: library/x509_create.c
2847 * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C
2849 * This module is the basis for creating X.509 certificates and CSRs.
2851 #define MBEDTLS_X509_CREATE_C
2854 * \def MBEDTLS_X509_CRT_WRITE_C
2856 * Enable creating X.509 certificates.
2858 * Module: library/x509_crt_write.c
2860 * Requires: MBEDTLS_X509_CREATE_C
2862 * This module is required for X.509 certificate creation.
2864 #define MBEDTLS_X509_CRT_WRITE_C
2867 * \def MBEDTLS_X509_CSR_WRITE_C
2869 * Enable creating X.509 Certificate Signing Requests (CSR).
2871 * Module: library/x509_csr_write.c
2873 * Requires: MBEDTLS_X509_CREATE_C
2875 * This module is required for X.509 certificate request writing.
2877 #define MBEDTLS_X509_CSR_WRITE_C
2880 * \def MBEDTLS_XTEA_C
2882 * Enable the XTEA block cipher.
2884 * Module: library/xtea.c
2887 //#define MBEDTLS_XTEA_C
2889 /* \} name SECTION: mbed TLS modules */
2892 * \name SECTION: Module configuration options
2894 * This section allows for the setting of module specific sizes and
2895 * configuration options. The default values are already present in the
2896 * relevant header files and should suffice for the regular use cases.
2898 * Our advice is to enable options and change their values here
2899 * only if you have a good reason and know the consequences.
2901 * Please check the respective header file for documentation on these
2902 * parameters (to prevent duplicate documentation).
2906 /* MPI / BIGNUM options */
2907 //#define MBEDTLS_MPI_WINDOW_SIZE 6 /**< Maximum windows size used. */
2908 //#define MBEDTLS_MPI_MAX_SIZE 1024 /**< Maximum number of bytes for usable MPIs. */
2910 /* CTR_DRBG options */
2911 //#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */
2912 //#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */
2913 //#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */
2914 //#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */
2915 //#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */
2917 /* HMAC_DRBG options */
2918 //#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */
2919 //#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */
2920 //#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */
2921 //#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */
2924 //#define MBEDTLS_ECP_MAX_BITS 521 /**< Maximum bit size of groups */
2925 //#define MBEDTLS_ECP_WINDOW_SIZE 6 /**< Maximum window size used */
2926 //#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up */
2928 /* Entropy options */
2929 //#define MBEDTLS_ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */
2930 //#define MBEDTLS_ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */
2931 //#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */
2933 /* Memory buffer allocator options */
2934 //#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 /**< Align on multiples of this value */
2936 /* Platform options */
2937 //#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. */
2938 //#define MBEDTLS_PLATFORM_STD_CALLOC calloc /**< Default allocator to use, can be undefined */
2939 //#define MBEDTLS_PLATFORM_STD_FREE free /**< Default free to use, can be undefined */
2940 //#define MBEDTLS_PLATFORM_STD_EXIT exit /**< Default exit to use, can be undefined */
2941 //#define MBEDTLS_PLATFORM_STD_TIME time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
2942 //#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use, can be undefined */
2943 //#define MBEDTLS_PLATFORM_STD_PRINTF printf /**< Default printf to use, can be undefined */
2944 /* Note: your snprintf must correclty zero-terminate the buffer! */
2945 //#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf /**< Default snprintf to use, can be undefined */
2946 //#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS 0 /**< Default exit value to use, can be undefined */
2947 //#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE 1 /**< Default exit value to use, can be undefined */
2948 //#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */
2949 //#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
2950 //#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" /**< Seed file to read/write with default implementation */
2952 /* To Use Function Macros MBEDTLS_PLATFORM_C must be enabled */
2953 /* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */
2954 //#define MBEDTLS_PLATFORM_CALLOC_MACRO calloc /**< Default allocator macro to use, can be undefined */
2955 //#define MBEDTLS_PLATFORM_FREE_MACRO free /**< Default free macro to use, can be undefined */
2956 //#define MBEDTLS_PLATFORM_EXIT_MACRO exit /**< Default exit macro to use, can be undefined */
2957 //#define MBEDTLS_PLATFORM_TIME_MACRO time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
2958 //#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
2959 //#define MBEDTLS_PLATFORM_FPRINTF_MACRO fprintf /**< Default fprintf macro to use, can be undefined */
2960 //#define MBEDTLS_PLATFORM_PRINTF_MACRO printf /**< Default printf macro to use, can be undefined */
2961 /* Note: your snprintf must correclty zero-terminate the buffer! */
2962 //#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf /**< Default snprintf macro to use, can be undefined */
2963 //#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */
2964 //#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
2966 /* SSL Cache options */
2967 //#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /**< 1 day */
2968 //#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /**< Maximum entries in cache */
2972 /** \def MBEDTLS_SSL_MAX_CONTENT_LEN
2974 * Maximum fragment length in bytes.
2976 * Determines the size of both the incoming and outgoing TLS I/O buffers.
2978 * Uncommenting MBEDTLS_SSL_IN_CONTENT_LEN and/or MBEDTLS_SSL_OUT_CONTENT_LEN
2979 * will override this length by setting maximum incoming and/or outgoing
2980 * fragment length, respectively.
2982 //#define MBEDTLS_SSL_MAX_CONTENT_LEN 16384
2984 /** \def MBEDTLS_SSL_IN_CONTENT_LEN
2986 * Maximum incoming fragment length in bytes.
2988 * Uncomment to set the size of the inward TLS buffer independently of the
2991 //#define MBEDTLS_SSL_IN_CONTENT_LEN 16384
2993 /** \def MBEDTLS_SSL_OUT_CONTENT_LEN
2995 * Maximum outgoing fragment length in bytes.
2997 * Uncomment to set the size of the outward TLS buffer independently of the
3000 * It is possible to save RAM by setting a smaller outward buffer, while keeping
3001 * the default inward 16384 byte buffer to conform to the TLS specification.
3003 * The minimum required outward buffer size is determined by the handshake
3004 * protocol's usage. Handshaking will fail if the outward buffer is too small.
3005 * The specific size requirement depends on the configured ciphers and any
3006 * certificate data which is sent during the handshake.
3008 * For absolute minimum RAM usage, it's best to enable
3009 * MBEDTLS_SSL_MAX_FRAGMENT_LENGTH and reduce MBEDTLS_SSL_MAX_CONTENT_LEN. This
3010 * reduces both incoming and outgoing buffer sizes. However this is only
3011 * guaranteed if the other end of the connection also supports the TLS
3012 * max_fragment_len extension. Otherwise the connection may fail.
3014 //#define MBEDTLS_SSL_OUT_CONTENT_LEN 16384
3016 /** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING
3018 * Maximum number of heap-allocated bytes for the purpose of
3019 * DTLS handshake message reassembly and future message buffering.
3021 * This should be at least 9/8 * MBEDTLSSL_IN_CONTENT_LEN
3022 * to account for a reassembled handshake message of maximum size,
3023 * together with its reassembly bitmap.
3025 * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default)
3026 * should be sufficient for all practical situations as it allows
3027 * to reassembly a large handshake message (such as a certificate)
3028 * while buffering multiple smaller handshake messages.
3031 //#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768
3033 //#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME 86400 /**< Lifetime of session tickets (if enabled) */
3034 //#define MBEDTLS_PSK_MAX_LEN 32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */
3035 //#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */
3038 * Complete list of ciphersuites to use, in order of preference.
3040 * \warning No dependency checking is done on that field! This option can only
3041 * be used to restrict the set of available ciphersuites. It is your
3042 * responsibility to make sure the needed modules are active.
3044 * Use this to save a few hundred bytes of ROM (default ordering of all
3045 * available ciphersuites) and a few to a few hundred bytes of RAM.
3047 * The value below is only an example, not the default.
3049 //#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
3052 //#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 /**< Maximum number of intermediate CAs in a verification chain. */
3053 //#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */
3056 * Allow SHA-1 in the default TLS configuration for certificate signing.
3057 * Without this build-time option, SHA-1 support must be activated explicitly
3058 * through mbedtls_ssl_conf_cert_profile. Turning on this option is not
3059 * recommended because of it is possible to generate SHA-1 collisions, however
3060 * this may be safe for legacy infrastructure where additional controls apply.
3062 * \warning SHA-1 is considered a weak message digest and its use constitutes
3063 * a security risk. If possible, we recommend avoiding dependencies
3064 * on it, and considering stronger message digests instead.
3067 // #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
3070 * Allow SHA-1 in the default TLS configuration for TLS 1.2 handshake
3071 * signature and ciphersuite selection. Without this build-time option, SHA-1
3072 * support must be activated explicitly through mbedtls_ssl_conf_sig_hashes.
3073 * The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by
3074 * default. At the time of writing, there is no practical attack on the use
3075 * of SHA-1 in handshake signatures, hence this option is turned on by default
3076 * to preserve compatibility with existing peers, but the general
3077 * warning applies nonetheless:
3079 * \warning SHA-1 is considered a weak message digest and its use constitutes
3080 * a security risk. If possible, we recommend avoiding dependencies
3081 * on it, and considering stronger message digests instead.
3084 #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE
3087 * Uncomment the macro to let mbed TLS use your alternate implementation of
3088 * mbedtls_platform_zeroize(). This replaces the default implementation in
3091 * mbedtls_platform_zeroize() is a widely used function across the library to
3092 * zero a block of memory. The implementation is expected to be secure in the
3093 * sense that it has been written to prevent the compiler from removing calls
3094 * to mbedtls_platform_zeroize() as part of redundant code elimination
3095 * optimizations. However, it is difficult to guarantee that calls to
3096 * mbedtls_platform_zeroize() will not be optimized by the compiler as older
3097 * versions of the C language standards do not provide a secure implementation
3098 * of memset(). Therefore, MBEDTLS_PLATFORM_ZEROIZE_ALT enables users to
3099 * configure their own implementation of mbedtls_platform_zeroize(), for
3100 * example by using directives specific to their compiler, features from newer
3101 * C standards (e.g using memset_s() in C11) or calling a secure memset() from
3102 * their system (e.g explicit_bzero() in BSD).
3104 //#define MBEDTLS_PLATFORM_ZEROIZE_ALT
3106 /* \} name SECTION: Customisation configuration options */
3108 /* Target and application specific configurations */
3109 //#define YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE "target_config.h"
3111 #if defined(TARGET_LIKE_MBED) && defined(YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE)
3112 #include YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE
3116 * Allow user to override any previous default.
3118 * Use two macro names for that, as:
3119 * - with yotta the prefix YOTTA_CFG_ is forced
3120 * - without yotta is looks weird to have a YOTTA prefix.
3122 #if defined(YOTTA_CFG_MBEDTLS_USER_CONFIG_FILE)
3123 #include YOTTA_CFG_MBEDTLS_USER_CONFIG_FILE
3124 #elif defined(MBEDTLS_USER_CONFIG_FILE)
3125 #include MBEDTLS_USER_CONFIG_FILE
3128 #include "check_config.h"
3130 #endif /* MBEDTLS_CONFIG_H */