/* * PSA RSA layer on top of Mbed TLS crypto */ /* * 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. */ #include "common.h" #if defined(MBEDTLS_PSA_CRYPTO_C) #include #include "psa_crypto_core.h" #include "psa_crypto_random_impl.h" #include "psa_crypto_rsa.h" #include #include #include "mbedtls/platform.h" #if !defined(MBEDTLS_PLATFORM_C) #define mbedtls_calloc calloc #define mbedtls_free free #endif #include #include #include #include #if ( defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ ( defined(PSA_CRYPTO_DRIVER_TEST) && \ defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) ) ) #define BUILTIN_KEY_TYPE_RSA_KEY_PAIR 1 #endif #if ( defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) || \ ( defined(PSA_CRYPTO_DRIVER_TEST) && \ defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY) ) ) #define BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY 1 #endif #if ( defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \ ( defined(PSA_CRYPTO_DRIVER_TEST) && \ defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) && \ defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V15) ) ) #define BUILTIN_ALG_RSA_PKCS1V15_SIGN 1 #endif #if ( defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) || \ ( defined(PSA_CRYPTO_DRIVER_TEST) && \ defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) && \ defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21) ) ) #define BUILTIN_ALG_RSA_PSS 1 #endif #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \ defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) || \ defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \ defined(BUILTIN_ALG_RSA_PSS) || \ defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ defined(BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) /* Mbed TLS doesn't support non-byte-aligned key sizes (i.e. key sizes * that are not a multiple of 8) well. For example, there is only * mbedtls_rsa_get_len(), which returns a number of bytes, and no * way to return the exact bit size of a key. * To keep things simple, reject non-byte-aligned key sizes. */ static psa_status_t psa_check_rsa_key_byte_aligned( const mbedtls_rsa_context *rsa) { mbedtls_mpi n; psa_status_t status; mbedtls_mpi_init(&n); status = mbedtls_to_psa_error( mbedtls_rsa_export(rsa, &n, NULL, NULL, NULL, NULL)); if (status == PSA_SUCCESS) { if (mbedtls_mpi_bitlen(&n) % 8 != 0) status = PSA_ERROR_NOT_SUPPORTED; } mbedtls_mpi_free(&n); return (status); } psa_status_t mbedtls_psa_rsa_load_representation( psa_key_type_t type, const uint8_t *data, size_t data_length, mbedtls_rsa_context **p_rsa) { psa_status_t status; mbedtls_pk_context ctx; size_t bits; mbedtls_pk_init(&ctx); /* Parse the data. */ if (PSA_KEY_TYPE_IS_KEY_PAIR(type)) status = mbedtls_to_psa_error( mbedtls_pk_parse_key(&ctx, data, data_length, NULL, 0)); else status = mbedtls_to_psa_error( mbedtls_pk_parse_public_key(&ctx, data, data_length)); if (status != PSA_SUCCESS) goto exit; /* We have something that the pkparse module recognizes. If it is a * valid RSA key, store it. */ if (mbedtls_pk_get_type(&ctx) != MBEDTLS_PK_RSA) { status = PSA_ERROR_INVALID_ARGUMENT; goto exit; } /* The size of an RSA key doesn't have to be a multiple of 8. Mbed TLS * supports non-byte-aligned key sizes, but not well. For example, * mbedtls_rsa_get_len() returns the key size in bytes, not in bits. */ bits = PSA_BYTES_TO_BITS(mbedtls_rsa_get_len(mbedtls_pk_rsa(ctx))); if (bits > PSA_VENDOR_RSA_MAX_KEY_BITS) { status = PSA_ERROR_NOT_SUPPORTED; goto exit; } status = psa_check_rsa_key_byte_aligned(mbedtls_pk_rsa(ctx)); if (status != PSA_SUCCESS) goto exit; /* Copy out the pointer to the RSA context, and reset the PK context * such that pk_free doesn't free the RSA context we just grabbed. */ *p_rsa = mbedtls_pk_rsa(ctx); ctx.pk_info = NULL; exit: mbedtls_pk_free(&ctx); return (status); } #endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) || * defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) || * defined(BUILTIN_ALG_RSA_PSS) || * defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || * defined(BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */ #if defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ defined(BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) static psa_status_t rsa_import_key( const psa_key_attributes_t *attributes, const uint8_t *data, size_t data_length, uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length, size_t *bits) { psa_status_t status; mbedtls_rsa_context *rsa = NULL; /* Parse input */ status = mbedtls_psa_rsa_load_representation(attributes->core.type, data, data_length, &rsa); if (status != PSA_SUCCESS) goto exit; *bits = (psa_key_bits_t) PSA_BYTES_TO_BITS(mbedtls_rsa_get_len(rsa)); /* Re-export the data to PSA export format, such that we can store export * representation in the key slot. Export representation in case of RSA is * the smallest representation that's allowed as input, so a straight-up * allocation of the same size as the input buffer will be large enough. */ status = mbedtls_psa_rsa_export_key(attributes->core.type, rsa, key_buffer, key_buffer_size, key_buffer_length); exit: /* Always free the RSA object */ mbedtls_rsa_free(rsa); mbedtls_free(rsa); return (status); } psa_status_t mbedtls_psa_rsa_export_key(psa_key_type_t type, mbedtls_rsa_context *rsa, uint8_t *data, size_t data_size, size_t *data_length) { #if defined(MBEDTLS_PK_WRITE_C) int ret; mbedtls_pk_context pk; uint8_t *pos = data + data_size; mbedtls_pk_init(&pk); pk.pk_info = &mbedtls_rsa_info; pk.pk_ctx = rsa; /* PSA Crypto API defines the format of an RSA key as a DER-encoded * representation of the non-encrypted PKCS#1 RSAPrivateKey for a * private key and of the RFC3279 RSAPublicKey for a public key. */ if (PSA_KEY_TYPE_IS_KEY_PAIR(type)) ret = mbedtls_pk_write_key_der(&pk, data, data_size); else ret = mbedtls_pk_write_pubkey(&pos, data, &pk); if (ret < 0) { /* Clean up in case pk_write failed halfway through. */ memset(data, 0, data_size); return (mbedtls_to_psa_error(ret)); } /* The mbedtls_pk_xxx functions write to the end of the buffer. * Move the data to the beginning and erase remaining data * at the original location. */ if (2 * (size_t) ret <= data_size) { memcpy(data, data + data_size - ret, ret); memset(data + data_size - ret, 0, ret); } else if ((size_t) ret < data_size) { memmove(data, data + data_size - ret, ret); memset(data + ret, 0, data_size - ret); } *data_length = ret; return (PSA_SUCCESS); #else (void) type; (void) rsa; (void) data; (void) data_size; (void) data_length; return (PSA_ERROR_NOT_SUPPORTED); #endif /* MBEDTLS_PK_WRITE_C */ } static psa_status_t rsa_export_public_key( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, uint8_t *data, size_t data_size, size_t *data_length) { psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; mbedtls_rsa_context *rsa = NULL; status = mbedtls_psa_rsa_load_representation( attributes->core.type, key_buffer, key_buffer_size, &rsa); if (status != PSA_SUCCESS) return (status); status = mbedtls_psa_rsa_export_key(PSA_KEY_TYPE_RSA_PUBLIC_KEY, rsa, data, data_size, data_length); mbedtls_rsa_free(rsa); mbedtls_free(rsa); return (status); } #endif /* defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || * defined(BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */ #if defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) static psa_status_t psa_rsa_read_exponent(const uint8_t *domain_parameters, size_t domain_parameters_size, int *exponent) { size_t i; uint32_t acc = 0; if (domain_parameters_size == 0) { *exponent = 65537; return (PSA_SUCCESS); } /* Mbed TLS encodes the public exponent as an int. For simplicity, only * support values that fit in a 32-bit integer, which is larger than * int on just about every platform anyway. */ if (domain_parameters_size > sizeof(acc)) return (PSA_ERROR_NOT_SUPPORTED); for (i = 0; i < domain_parameters_size; i++) acc = (acc << 8) | domain_parameters[i]; if (acc > INT_MAX) return (PSA_ERROR_NOT_SUPPORTED); *exponent = acc; return (PSA_SUCCESS); } static psa_status_t rsa_generate_key( const psa_key_attributes_t *attributes, uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length) { psa_status_t status; mbedtls_rsa_context rsa; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; int exponent; status = psa_rsa_read_exponent(attributes->domain_parameters, attributes->domain_parameters_size, &exponent); if (status != PSA_SUCCESS) return (status); mbedtls_rsa_init(&rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_NONE); ret = mbedtls_rsa_gen_key(&rsa, mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE, (unsigned int)attributes->core.bits, exponent); if (ret != 0) return (mbedtls_to_psa_error(ret)); status = mbedtls_psa_rsa_export_key(attributes->core.type, &rsa, key_buffer, key_buffer_size, key_buffer_length); mbedtls_rsa_free(&rsa); return (status); } #endif /* defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) */ /****************************************************************/ /* Sign/verify hashes */ /****************************************************************/ #if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) || defined(BUILTIN_ALG_RSA_PSS) /* Decode the hash algorithm from alg and store the mbedtls encoding in * md_alg. Verify that the hash length is acceptable. */ static psa_status_t psa_rsa_decode_md_type(psa_algorithm_t alg, size_t hash_length, mbedtls_md_type_t *md_alg) { psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH(alg); const mbedtls_md_info_t *md_info = mbedtls_md_info_from_psa(hash_alg); *md_alg = mbedtls_md_get_type(md_info); /* The Mbed TLS RSA module uses an unsigned int for hash length * parameters. Validate that it fits so that we don't risk an * overflow later. */ #if SIZE_MAX > UINT_MAX if (hash_length > UINT_MAX) return (PSA_ERROR_INVALID_ARGUMENT); #endif #if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) /* For PKCS#1 v1.5 signature, if using a hash, the hash length * must be correct. */ if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) && alg != PSA_ALG_RSA_PKCS1V15_SIGN_RAW) { if (md_info == NULL) return (PSA_ERROR_NOT_SUPPORTED); if (mbedtls_md_get_size(md_info) != hash_length) return (PSA_ERROR_INVALID_ARGUMENT); } #endif /* BUILTIN_ALG_RSA_PKCS1V15_SIGN */ #if defined(BUILTIN_ALG_RSA_PSS) /* PSS requires a hash internally. */ if (PSA_ALG_IS_RSA_PSS(alg)) { if (md_info == NULL) return (PSA_ERROR_NOT_SUPPORTED); } #endif /* BUILTIN_ALG_RSA_PSS */ return (PSA_SUCCESS); } static psa_status_t rsa_sign_hash( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *hash, size_t hash_length, uint8_t *signature, size_t signature_size, size_t *signature_length) { psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; mbedtls_rsa_context *rsa = NULL; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; mbedtls_md_type_t md_alg; status = mbedtls_psa_rsa_load_representation(attributes->core.type, key_buffer, key_buffer_size, &rsa); if (status != PSA_SUCCESS) return (status); status = psa_rsa_decode_md_type(alg, hash_length, &md_alg); if (status != PSA_SUCCESS) goto exit; if (signature_size < mbedtls_rsa_get_len(rsa)) { status = PSA_ERROR_BUFFER_TOO_SMALL; goto exit; } #if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg)) { mbedtls_rsa_set_padding(rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_NONE); ret = mbedtls_rsa_pkcs1_sign(rsa, mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE, MBEDTLS_RSA_PRIVATE, md_alg, (unsigned int) hash_length, hash, signature); } else #endif /* BUILTIN_ALG_RSA_PKCS1V15_SIGN */ #if defined(BUILTIN_ALG_RSA_PSS) if (PSA_ALG_IS_RSA_PSS(alg)) { mbedtls_rsa_set_padding(rsa, MBEDTLS_RSA_PKCS_V21, md_alg); ret = mbedtls_rsa_rsassa_pss_sign(rsa, mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE, MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_NONE, (unsigned int) hash_length, hash, signature); } else #endif /* BUILTIN_ALG_RSA_PSS */ { status = PSA_ERROR_INVALID_ARGUMENT; goto exit; } if (ret == 0) *signature_length = mbedtls_rsa_get_len(rsa); status = mbedtls_to_psa_error(ret); exit: mbedtls_rsa_free(rsa); mbedtls_free(rsa); return (status); } static psa_status_t rsa_verify_hash( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *hash, size_t hash_length, const uint8_t *signature, size_t signature_length) { psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; mbedtls_rsa_context *rsa = NULL; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; mbedtls_md_type_t md_alg; status = mbedtls_psa_rsa_load_representation(attributes->core.type, key_buffer, key_buffer_size, &rsa); if (status != PSA_SUCCESS) goto exit; status = psa_rsa_decode_md_type(alg, hash_length, &md_alg); if (status != PSA_SUCCESS) goto exit; if (signature_length != mbedtls_rsa_get_len(rsa)) { status = PSA_ERROR_INVALID_SIGNATURE; goto exit; } #if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg)) { mbedtls_rsa_set_padding(rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_NONE); ret = mbedtls_rsa_pkcs1_verify(rsa, mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE, MBEDTLS_RSA_PUBLIC, md_alg, (unsigned int) hash_length, hash, signature); } else #endif /* BUILTIN_ALG_RSA_PKCS1V15_SIGN */ #if defined(BUILTIN_ALG_RSA_PSS) if (PSA_ALG_IS_RSA_PSS(alg)) { mbedtls_rsa_set_padding(rsa, MBEDTLS_RSA_PKCS_V21, md_alg); ret = mbedtls_rsa_rsassa_pss_verify(rsa, mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE, MBEDTLS_RSA_PUBLIC, MBEDTLS_MD_NONE, (unsigned int) hash_length, hash, signature); } else #endif /* BUILTIN_ALG_RSA_PSS */ { status = PSA_ERROR_INVALID_ARGUMENT; goto exit; } /* Mbed TLS distinguishes "invalid padding" from "valid padding but * the rest of the signature is invalid". This has little use in * practice and PSA doesn't report this distinction. */ status = (ret == MBEDTLS_ERR_RSA_INVALID_PADDING) ? PSA_ERROR_INVALID_SIGNATURE : mbedtls_to_psa_error(ret); exit: mbedtls_rsa_free(rsa); mbedtls_free(rsa); return (status); } #endif /* defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) || * defined(BUILTIN_ALG_RSA_PSS) */ #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) psa_status_t mbedtls_psa_rsa_import_key( const psa_key_attributes_t *attributes, const uint8_t *data, size_t data_length, uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length, size_t *bits) { return (rsa_import_key(attributes, data, data_length, key_buffer, key_buffer_size, key_buffer_length, bits)); } psa_status_t mbedtls_psa_rsa_export_public_key( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, uint8_t *data, size_t data_size, size_t *data_length) { return (rsa_export_public_key(attributes, key_buffer, key_buffer_size, data, data_size, data_length)); } #endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */ #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) psa_status_t mbedtls_psa_rsa_generate_key( const psa_key_attributes_t *attributes, uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length) { return (rsa_generate_key(attributes, key_buffer, key_buffer_size, key_buffer_length)); } #endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) */ #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \ defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) psa_status_t mbedtls_psa_rsa_sign_hash( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *hash, size_t hash_length, uint8_t *signature, size_t signature_size, size_t *signature_length) { return (rsa_sign_hash( attributes, key_buffer, key_buffer_size, alg, hash, hash_length, signature, signature_size, signature_length)); } psa_status_t mbedtls_psa_rsa_verify_hash( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *hash, size_t hash_length, const uint8_t *signature, size_t signature_length) { return (rsa_verify_hash( attributes, key_buffer, key_buffer_size, alg, hash, hash_length, signature, signature_length)); } #endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) */ /* * BEYOND THIS POINT, TEST DRIVER ENTRY POINTS ONLY. */ #if defined(PSA_CRYPTO_DRIVER_TEST) #if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) || \ defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY) psa_status_t mbedtls_transparent_test_driver_rsa_import_key( const psa_key_attributes_t *attributes, const uint8_t *data, size_t data_length, uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length, size_t *bits) { return (rsa_import_key(attributes, data, data_length, key_buffer, key_buffer_size, key_buffer_length, bits)); } psa_status_t mbedtls_transparent_test_driver_rsa_export_public_key( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, uint8_t *data, size_t data_size, size_t *data_length) { return (rsa_export_public_key(attributes, key_buffer, key_buffer_size, data, data_size, data_length)); } #endif /* defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) || defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY) */ #if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) psa_status_t mbedtls_transparent_test_driver_rsa_generate_key( const psa_key_attributes_t *attributes, uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length) { return (rsa_generate_key(attributes, key_buffer, key_buffer_size, key_buffer_length)); } #endif /* defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) */ #if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) || \ defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) psa_status_t mbedtls_transparent_test_driver_rsa_sign_hash( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *hash, size_t hash_length, uint8_t *signature, size_t signature_size, size_t *signature_length) { #if defined(MBEDTLS_RSA_C) && \ (defined(MBEDTLS_PKCS1_V15) || defined(MBEDTLS_PKCS1_V21)) return (rsa_sign_hash( attributes, key_buffer, key_buffer_size, alg, hash, hash_length, signature, signature_size, signature_length)); #else (void)attributes; (void)key_buffer; (void)key_buffer_size; (void)alg; (void)hash; (void)hash_length; (void)signature; (void)signature_size; (void)signature_length; return (PSA_ERROR_NOT_SUPPORTED); #endif } psa_status_t mbedtls_transparent_test_driver_rsa_verify_hash( const psa_key_attributes_t *attributes, const uint8_t *key_buffer, size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *hash, size_t hash_length, const uint8_t *signature, size_t signature_length) { #if defined(MBEDTLS_RSA_C) && \ (defined(MBEDTLS_PKCS1_V15) || defined(MBEDTLS_PKCS1_V21)) return (rsa_verify_hash( attributes, key_buffer, key_buffer_size, alg, hash, hash_length, signature, signature_length)); #else (void)attributes; (void)key_buffer; (void)key_buffer_size; (void)alg; (void)hash; (void)hash_length; (void)signature; (void)signature_length; return (PSA_ERROR_NOT_SUPPORTED); #endif } #endif /* defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) || * defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) */ #endif /* PSA_CRYPTO_DRIVER_TEST */ #endif /* MBEDTLS_PSA_CRYPTO_C */