/** * \file mbedtls/config_adjust_legacy_crypto.h * \brief Adjust legacy configuration configuration * * Automatically enable certain dependencies. Generally, MBEDLTS_xxx * configurations need to be explicitly enabled by the user: enabling * MBEDTLS_xxx_A but not MBEDTLS_xxx_B when A requires B results in a * compilation error. However, we do automatically enable certain options * in some circumstances. One case is if MBEDTLS_xxx_B is an internal option * used to identify parts of a module that are used by other module, and we * don't want to make the symbol MBEDTLS_xxx_B part of the public API. * Another case is if A didn't depend on B in earlier versions, and we * want to use B in A but we need to preserve backward compatibility with * configurations that explicitly activate MBEDTLS_xxx_A but not * MBEDTLS_xxx_B. */ /* * Copyright The Mbed TLS Contributors * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H #define MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H /* Auto-enable MBEDTLS_MD_LIGHT based on MBEDTLS_MD_C. * This allows checking for MD_LIGHT rather than MD_LIGHT || MD_C. */ #if defined(MBEDTLS_MD_C) #define MBEDTLS_MD_LIGHT #endif /* Auto-enable MBEDTLS_MD_LIGHT if needed by a module that didn't require it * in a previous release, to ensure backwards compatibility. */ #if defined(MBEDTLS_ECJPAKE_C) || \ defined(MBEDTLS_PEM_PARSE_C) || \ defined(MBEDTLS_ENTROPY_C) || \ defined(MBEDTLS_PK_C) || \ defined(MBEDTLS_PKCS12_C) || \ defined(MBEDTLS_RSA_C) || \ defined(MBEDTLS_SSL_TLS_C) || \ defined(MBEDTLS_X509_USE_C) || \ defined(MBEDTLS_X509_CREATE_C) #define MBEDTLS_MD_LIGHT #endif /* MBEDTLS_ECP_LIGHT is auto-enabled by the following symbols: * - MBEDTLS_ECP_C because now it consists of MBEDTLS_ECP_LIGHT plus functions * for curve arithmetic. As a consequence if MBEDTLS_ECP_C is required for * some reason, then MBEDTLS_ECP_LIGHT should be enabled as well. * - MBEDTLS_PK_PARSE_EC_EXTENDED and MBEDTLS_PK_PARSE_EC_COMPRESSED because * these features are not supported in PSA so the only way to have them is * to enable the built-in solution. * Both of them are temporary dependencies: * - PK_PARSE_EC_EXTENDED will be removed after #7779 and #7789 * - support for compressed points should also be added to PSA, but in this * case there is no associated issue to track it yet. * - PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE because Weierstrass key derivation * still depends on ECP_LIGHT. * - PK_C + USE_PSA + PSA_WANT_ALG_ECDSA is a temporary dependency which will * be fixed by #7453. */ #if defined(MBEDTLS_ECP_C) || \ defined(MBEDTLS_PK_PARSE_EC_EXTENDED) || \ defined(MBEDTLS_PK_PARSE_EC_COMPRESSED) || \ defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE) #define MBEDTLS_ECP_LIGHT #endif /* MBEDTLS_PK_PARSE_EC_COMPRESSED is introduced in MbedTLS version 3.5, while * in previous version compressed points were automatically supported as long * as PK_PARSE_C and ECP_C were enabled. As a consequence, for backward * compatibility, we auto-enable PK_PARSE_EC_COMPRESSED when these conditions * are met. */ #if defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_ECP_C) #define MBEDTLS_PK_PARSE_EC_COMPRESSED #endif /* Helper symbol to state that there is support for ECDH, either through * library implementation (ECDH_C) or through PSA. */ #if (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_ALG_ECDH)) || \ (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C)) #define MBEDTLS_CAN_ECDH #endif /* PK module can achieve ECDSA functionalities by means of either software * implementations (ECDSA_C) or through a PSA driver. The following defines * are meant to list these capabilities in a general way which abstracts how * they are implemented under the hood. */ #if !defined(MBEDTLS_USE_PSA_CRYPTO) #if defined(MBEDTLS_ECDSA_C) #define MBEDTLS_PK_CAN_ECDSA_SIGN #define MBEDTLS_PK_CAN_ECDSA_VERIFY #endif /* MBEDTLS_ECDSA_C */ #else /* MBEDTLS_USE_PSA_CRYPTO */ #if defined(PSA_WANT_ALG_ECDSA) #if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) #define MBEDTLS_PK_CAN_ECDSA_SIGN #endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC */ #if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) #define MBEDTLS_PK_CAN_ECDSA_VERIFY #endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */ #endif /* PSA_WANT_ALG_ECDSA */ #endif /* MBEDTLS_USE_PSA_CRYPTO */ #if defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) || defined(MBEDTLS_PK_CAN_ECDSA_SIGN) #define MBEDTLS_PK_CAN_ECDSA_SOME #endif /* If MBEDTLS_PSA_CRYPTO_C is defined, make sure MBEDTLS_PSA_CRYPTO_CLIENT * is defined as well to include all PSA code. */ #if defined(MBEDTLS_PSA_CRYPTO_C) #define MBEDTLS_PSA_CRYPTO_CLIENT #endif /* MBEDTLS_PSA_CRYPTO_C */ /* The PK wrappers need pk_write functions to format RSA key objects * when they are dispatching to the PSA API. This happens under USE_PSA_CRYPTO, * and also even without USE_PSA_CRYPTO for mbedtls_pk_sign_ext(). */ #if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_RSA_C) #define MBEDTLS_PK_C #define MBEDTLS_PK_WRITE_C #define MBEDTLS_PK_PARSE_C #endif /* Helpers to state that each key is supported either on the builtin or PSA side. */ #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_521) #define MBEDTLS_ECP_HAVE_SECP521R1 #endif #if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) #define MBEDTLS_ECP_HAVE_BP512R1 #endif #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_448) #define MBEDTLS_ECP_HAVE_CURVE448 #endif #if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) #define MBEDTLS_ECP_HAVE_BP384R1 #endif #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_384) #define MBEDTLS_ECP_HAVE_SECP384R1 #endif #if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) #define MBEDTLS_ECP_HAVE_BP256R1 #endif #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_256) #define MBEDTLS_ECP_HAVE_SECP256K1 #endif #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_256) #define MBEDTLS_ECP_HAVE_SECP256R1 #endif #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_255) #define MBEDTLS_ECP_HAVE_CURVE25519 #endif #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_224) #define MBEDTLS_ECP_HAVE_SECP224K1 #endif #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_224) #define MBEDTLS_ECP_HAVE_SECP224R1 #endif #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_192) #define MBEDTLS_ECP_HAVE_SECP192K1 #endif #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_192) #define MBEDTLS_ECP_HAVE_SECP192R1 #endif /* Helper symbol to state that the PK module has support for EC keys. This * can either be provided through the legacy ECP solution or through the * PSA friendly MBEDTLS_PK_USE_PSA_EC_DATA (see pk.h for its description). */ #if defined(MBEDTLS_ECP_C) || \ (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)) #define MBEDTLS_PK_HAVE_ECC_KEYS #endif /* MBEDTLS_PK_USE_PSA_EC_DATA || MBEDTLS_ECP_C */ /* Historically pkparse did not check the CBC padding when decrypting * a key. This was a bug, which is now fixed. As a consequence, pkparse * now needs PKCS7 padding support, but existing configurations might not * enable it, so we enable it here. */ #if defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_PKCS5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) #define MBEDTLS_CIPHER_PADDING_PKCS7 #endif #endif /* MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H */