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203 lines
8.5 KiB
C
203 lines
8.5 KiB
C
/**
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* \file mbedtls/config_adjust_legacy_crypto.h
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* \brief Adjust legacy configuration configuration
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*
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* Automatically enable certain dependencies. Generally, MBEDLTS_xxx
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* configurations need to be explicitly enabled by the user: enabling
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* MBEDTLS_xxx_A but not MBEDTLS_xxx_B when A requires B results in a
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* compilation error. However, we do automatically enable certain options
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* in some circumstances. One case is if MBEDTLS_xxx_B is an internal option
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* used to identify parts of a module that are used by other module, and we
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* don't want to make the symbol MBEDTLS_xxx_B part of the public API.
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* Another case is if A didn't depend on B in earlier versions, and we
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* want to use B in A but we need to preserve backward compatibility with
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* configurations that explicitly activate MBEDTLS_xxx_A but not
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* MBEDTLS_xxx_B.
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*/
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H
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#define MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H
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/* Auto-enable MBEDTLS_MD_LIGHT based on MBEDTLS_MD_C.
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* This allows checking for MD_LIGHT rather than MD_LIGHT || MD_C.
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*/
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#if defined(MBEDTLS_MD_C)
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#define MBEDTLS_MD_LIGHT
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#endif
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/* Auto-enable MBEDTLS_MD_LIGHT if needed by a module that didn't require it
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* in a previous release, to ensure backwards compatibility.
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*/
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#if defined(MBEDTLS_ECJPAKE_C) || \
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defined(MBEDTLS_PEM_PARSE_C) || \
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defined(MBEDTLS_ENTROPY_C) || \
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defined(MBEDTLS_PK_C) || \
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defined(MBEDTLS_PKCS12_C) || \
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defined(MBEDTLS_RSA_C) || \
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defined(MBEDTLS_SSL_TLS_C) || \
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defined(MBEDTLS_X509_USE_C) || \
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defined(MBEDTLS_X509_CREATE_C)
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#define MBEDTLS_MD_LIGHT
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#endif
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/* MBEDTLS_ECP_LIGHT is auto-enabled by the following symbols:
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* - MBEDTLS_ECP_C because now it consists of MBEDTLS_ECP_LIGHT plus functions
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* for curve arithmetic. As a consequence if MBEDTLS_ECP_C is required for
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* some reason, then MBEDTLS_ECP_LIGHT should be enabled as well.
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* - MBEDTLS_PK_PARSE_EC_EXTENDED and MBEDTLS_PK_PARSE_EC_COMPRESSED because
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* these features are not supported in PSA so the only way to have them is
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* to enable the built-in solution.
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* Both of them are temporary dependencies:
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* - PK_PARSE_EC_EXTENDED will be removed after #7779 and #7789
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* - support for compressed points should also be added to PSA, but in this
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* case there is no associated issue to track it yet.
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* - PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE because Weierstrass key derivation
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* still depends on ECP_LIGHT.
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* - PK_C + USE_PSA + PSA_WANT_ALG_ECDSA is a temporary dependency which will
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* be fixed by #7453.
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*/
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#if defined(MBEDTLS_ECP_C) || \
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defined(MBEDTLS_PK_PARSE_EC_EXTENDED) || \
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defined(MBEDTLS_PK_PARSE_EC_COMPRESSED) || \
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defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE)
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#define MBEDTLS_ECP_LIGHT
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#endif
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/* MBEDTLS_PK_PARSE_EC_COMPRESSED is introduced in MbedTLS version 3.5, while
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* in previous version compressed points were automatically supported as long
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* as PK_PARSE_C and ECP_C were enabled. As a consequence, for backward
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* compatibility, we auto-enable PK_PARSE_EC_COMPRESSED when these conditions
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* are met. */
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#if defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_ECP_C)
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#define MBEDTLS_PK_PARSE_EC_COMPRESSED
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#endif
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/* Helper symbol to state that there is support for ECDH, either through
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* library implementation (ECDH_C) or through PSA. */
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#if (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_ALG_ECDH)) || \
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(!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C))
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#define MBEDTLS_CAN_ECDH
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#endif
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/* PK module can achieve ECDSA functionalities by means of either software
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* implementations (ECDSA_C) or through a PSA driver. The following defines
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* are meant to list these capabilities in a general way which abstracts how
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* they are implemented under the hood. */
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#if !defined(MBEDTLS_USE_PSA_CRYPTO)
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#if defined(MBEDTLS_ECDSA_C)
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#define MBEDTLS_PK_CAN_ECDSA_SIGN
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#define MBEDTLS_PK_CAN_ECDSA_VERIFY
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#endif /* MBEDTLS_ECDSA_C */
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#else /* MBEDTLS_USE_PSA_CRYPTO */
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#if defined(PSA_WANT_ALG_ECDSA)
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#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC)
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#define MBEDTLS_PK_CAN_ECDSA_SIGN
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#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC */
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#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
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#define MBEDTLS_PK_CAN_ECDSA_VERIFY
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#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */
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#endif /* PSA_WANT_ALG_ECDSA */
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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#if defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) || defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
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#define MBEDTLS_PK_CAN_ECDSA_SOME
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#endif
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/* If MBEDTLS_PSA_CRYPTO_C is defined, make sure MBEDTLS_PSA_CRYPTO_CLIENT
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* is defined as well to include all PSA code.
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*/
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#if defined(MBEDTLS_PSA_CRYPTO_C)
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#define MBEDTLS_PSA_CRYPTO_CLIENT
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#endif /* MBEDTLS_PSA_CRYPTO_C */
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/* The PK wrappers need pk_write functions to format RSA key objects
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* when they are dispatching to the PSA API. This happens under USE_PSA_CRYPTO,
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* and also even without USE_PSA_CRYPTO for mbedtls_pk_sign_ext(). */
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#if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_RSA_C)
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#define MBEDTLS_PK_C
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#define MBEDTLS_PK_WRITE_C
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#define MBEDTLS_PK_PARSE_C
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#endif
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/* Helpers to state that each key is supported either on the builtin or PSA side. */
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#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_521)
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#define MBEDTLS_ECP_HAVE_SECP521R1
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#endif
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#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512)
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#define MBEDTLS_ECP_HAVE_BP512R1
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#endif
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#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_448)
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#define MBEDTLS_ECP_HAVE_CURVE448
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#endif
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#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
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#define MBEDTLS_ECP_HAVE_BP384R1
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_384)
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#define MBEDTLS_ECP_HAVE_SECP384R1
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#endif
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#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
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#define MBEDTLS_ECP_HAVE_BP256R1
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_256)
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#define MBEDTLS_ECP_HAVE_SECP256K1
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_256)
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#define MBEDTLS_ECP_HAVE_SECP256R1
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#endif
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#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_255)
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#define MBEDTLS_ECP_HAVE_CURVE25519
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_224)
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#define MBEDTLS_ECP_HAVE_SECP224K1
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_224)
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#define MBEDTLS_ECP_HAVE_SECP224R1
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_192)
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#define MBEDTLS_ECP_HAVE_SECP192K1
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#endif
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#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_192)
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#define MBEDTLS_ECP_HAVE_SECP192R1
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#endif
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/* Helper symbol to state that the PK module has support for EC keys. This
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* can either be provided through the legacy ECP solution or through the
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* PSA friendly MBEDTLS_PK_USE_PSA_EC_DATA (see pk.h for its description). */
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#if defined(MBEDTLS_ECP_C) || \
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(defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY))
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#define MBEDTLS_PK_HAVE_ECC_KEYS
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#endif /* MBEDTLS_PK_USE_PSA_EC_DATA || MBEDTLS_ECP_C */
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/* Backwards compatibility for some macros which were renamed to reflect that
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* they are related to Armv8, not aarch64. */
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#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) && !defined(MBEDTLS_SHA256_USE_ARMV8_CRYPTO_IF_PRESENT)
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#define MBEDTLS_SHA256_USE_ARMV8_CRYPTO_IF_PRESENT
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#endif
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#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY) && !defined(MBEDTLS_SHA256_USE_ARMV8_CRYPTO_ONLY)
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#define MBEDTLS_SHA256_USE_ARMV8_CRYPTO_ONLY
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#endif
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#if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT) && !defined(MBEDTLS_SHA512_USE_ARMV8_CRYPTO_IF_PRESENT)
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#define MBEDTLS_SHA512_USE_ARMV8_CRYPTO_IF_PRESENT
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#endif
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#if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY) && !defined(MBEDTLS_SHA512_USE_ARMV8_CRYPTO_ONLY)
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#define MBEDTLS_SHA512_USE_ARMV8_CRYPTO_ONLY
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#endif
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#endif /* MBEDTLS_CONFIG_ADJUST_LEGACY_CRYPTO_H */
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