383 lines
12 KiB
C
383 lines
12 KiB
C
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/*
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* PSA hashing layer on top of Mbed TLS software crypto
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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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#include "common.h"
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#if defined(MBEDTLS_PSA_CRYPTO_C)
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#include <psa/crypto.h>
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#include "psa_crypto_core.h"
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#include "psa_crypto_hash.h"
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#include <mbedtls/error.h>
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#include <string.h>
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#if defined(MBEDTLS_PSA_BUILTIN_HASH)
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psa_status_t mbedtls_psa_hash_abort(
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mbedtls_psa_hash_operation_t *operation)
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{
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switch (operation->alg) {
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case 0:
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/* The object has (apparently) been initialized but it is not
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* in use. It's ok to call abort on such an object, and there's
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* nothing to do. */
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break;
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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mbedtls_md5_free(&operation->ctx.md5);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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mbedtls_ripemd160_free(&operation->ctx.ripemd160);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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mbedtls_sha1_free(&operation->ctx.sha1);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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mbedtls_sha256_free(&operation->ctx.sha256);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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mbedtls_sha256_free(&operation->ctx.sha256);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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mbedtls_sha512_free(&operation->ctx.sha512);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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mbedtls_sha512_free(&operation->ctx.sha512);
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break;
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#endif
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default:
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return PSA_ERROR_BAD_STATE;
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}
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operation->alg = 0;
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return PSA_SUCCESS;
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}
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psa_status_t mbedtls_psa_hash_setup(
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mbedtls_psa_hash_operation_t *operation,
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psa_algorithm_t alg)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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/* A context must be freshly initialized before it can be set up. */
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if (operation->alg != 0) {
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return PSA_ERROR_BAD_STATE;
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}
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switch (alg) {
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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mbedtls_md5_init(&operation->ctx.md5);
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ret = mbedtls_md5_starts(&operation->ctx.md5);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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mbedtls_ripemd160_init(&operation->ctx.ripemd160);
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ret = mbedtls_ripemd160_starts(&operation->ctx.ripemd160);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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mbedtls_sha1_init(&operation->ctx.sha1);
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ret = mbedtls_sha1_starts(&operation->ctx.sha1);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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mbedtls_sha256_init(&operation->ctx.sha256);
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mbedtls_sha256_starts(&operation->ctx.sha256, 1);
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ret = 0;
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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mbedtls_sha256_init(&operation->ctx.sha256);
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mbedtls_sha256_starts(&operation->ctx.sha256, 0);
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ret = 0;
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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mbedtls_sha512_init(&operation->ctx.sha512);
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ret = mbedtls_sha512_starts(&operation->ctx.sha512, 1);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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mbedtls_sha512_init(&operation->ctx.sha512);
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ret = mbedtls_sha512_starts(&operation->ctx.sha512, 0);
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break;
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#endif
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default:
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return PSA_ALG_IS_HASH(alg) ?
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PSA_ERROR_NOT_SUPPORTED :
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PSA_ERROR_INVALID_ARGUMENT;
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}
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if (ret == 0) {
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operation->alg = alg;
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} else {
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mbedtls_psa_hash_abort(operation);
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}
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return mbedtls_to_psa_error(ret);
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}
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psa_status_t mbedtls_psa_hash_clone(
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const mbedtls_psa_hash_operation_t *source_operation,
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mbedtls_psa_hash_operation_t *target_operation)
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{
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switch (source_operation->alg) {
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case 0:
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return PSA_ERROR_BAD_STATE;
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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mbedtls_md5_clone(&target_operation->ctx.md5,
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&source_operation->ctx.md5);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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mbedtls_ripemd160_clone(&target_operation->ctx.ripemd160,
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&source_operation->ctx.ripemd160);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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mbedtls_sha1_clone(&target_operation->ctx.sha1,
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&source_operation->ctx.sha1);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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mbedtls_sha256_clone(&target_operation->ctx.sha256,
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&source_operation->ctx.sha256);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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mbedtls_sha256_clone(&target_operation->ctx.sha256,
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&source_operation->ctx.sha256);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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mbedtls_sha512_clone(&target_operation->ctx.sha512,
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&source_operation->ctx.sha512);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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mbedtls_sha512_clone(&target_operation->ctx.sha512,
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&source_operation->ctx.sha512);
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break;
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#endif
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default:
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(void) source_operation;
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(void) target_operation;
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return PSA_ERROR_NOT_SUPPORTED;
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}
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target_operation->alg = source_operation->alg;
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return PSA_SUCCESS;
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}
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psa_status_t mbedtls_psa_hash_update(
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mbedtls_psa_hash_operation_t *operation,
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const uint8_t *input,
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size_t input_length)
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{
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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switch (operation->alg) {
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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ret = mbedtls_md5_update(&operation->ctx.md5,
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input, input_length);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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ret = mbedtls_ripemd160_update(&operation->ctx.ripemd160,
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input, input_length);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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ret = mbedtls_sha1_update(&operation->ctx.sha1,
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input, input_length);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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mbedtls_sha256_update(&operation->ctx.sha256,
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input, input_length);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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mbedtls_sha256_update(&operation->ctx.sha256,
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input, input_length);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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mbedtls_sha512_update(&operation->ctx.sha512,
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input, input_length);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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mbedtls_sha512_update(&operation->ctx.sha512,
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input, input_length);
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break;
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#endif
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default:
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(void) input;
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(void) input_length;
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return PSA_ERROR_BAD_STATE;
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}
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return mbedtls_to_psa_error(ret);
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}
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psa_status_t mbedtls_psa_hash_finish(
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mbedtls_psa_hash_operation_t *operation,
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uint8_t *hash,
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size_t hash_size,
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size_t *hash_length)
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{
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psa_status_t status;
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t actual_hash_length = PSA_HASH_LENGTH(operation->alg);
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/* Fill the output buffer with something that isn't a valid hash
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* (barring an attack on the hash and deliberately-crafted input),
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* in case the caller doesn't check the return status properly. */
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*hash_length = hash_size;
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/* If hash_size is 0 then hash may be NULL and then the
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* call to memset would have undefined behavior. */
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if (hash_size != 0) {
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memset(hash, '!', hash_size);
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}
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if (hash_size < actual_hash_length) {
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status = PSA_ERROR_BUFFER_TOO_SMALL;
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goto exit;
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}
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switch (operation->alg) {
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_MD5)
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case PSA_ALG_MD5:
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ret = mbedtls_md5_finish(&operation->ctx.md5, hash);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_RIPEMD160)
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case PSA_ALG_RIPEMD160:
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ret = mbedtls_ripemd160_finish(&operation->ctx.ripemd160, hash);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_1)
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case PSA_ALG_SHA_1:
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ret = mbedtls_sha1_finish(&operation->ctx.sha1, hash);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_224)
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case PSA_ALG_SHA_224:
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ret = mbedtls_sha256_finish(&operation->ctx.sha256, hash);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_256)
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case PSA_ALG_SHA_256:
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ret = mbedtls_sha256_finish(&operation->ctx.sha256, hash);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_384)
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case PSA_ALG_SHA_384:
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ret = mbedtls_sha512_finish(&operation->ctx.sha512, hash);
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break;
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#endif
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#if defined(MBEDTLS_PSA_BUILTIN_ALG_SHA_512)
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case PSA_ALG_SHA_512:
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ret = mbedtls_sha512_finish(&operation->ctx.sha512, hash);
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break;
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#endif
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default:
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(void) hash;
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return PSA_ERROR_BAD_STATE;
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}
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status = mbedtls_to_psa_error(ret);
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exit:
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if (status == PSA_SUCCESS) {
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*hash_length = actual_hash_length;
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}
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return status;
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}
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psa_status_t mbedtls_psa_hash_compute(
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psa_algorithm_t alg,
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const uint8_t *input,
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size_t input_length,
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uint8_t *hash,
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|
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size_t hash_size,
|
||
|
|
size_t *hash_length)
|
||
|
|
{
|
||
|
|
mbedtls_psa_hash_operation_t operation = MBEDTLS_PSA_HASH_OPERATION_INIT;
|
||
|
|
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
|
||
|
|
psa_status_t abort_status = PSA_ERROR_CORRUPTION_DETECTED;
|
||
|
|
|
||
|
|
*hash_length = hash_size;
|
||
|
|
status = mbedtls_psa_hash_setup(&operation, alg);
|
||
|
|
if (status != PSA_SUCCESS) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
status = mbedtls_psa_hash_update(&operation, input, input_length);
|
||
|
|
if (status != PSA_SUCCESS) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
status = mbedtls_psa_hash_finish(&operation, hash, hash_size, hash_length);
|
||
|
|
if (status != PSA_SUCCESS) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
exit:
|
||
|
|
abort_status = mbedtls_psa_hash_abort(&operation);
|
||
|
|
if (status == PSA_SUCCESS) {
|
||
|
|
return abort_status;
|
||
|
|
} else {
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
#endif /* MBEDTLS_PSA_BUILTIN_HASH */
|
||
|
|
|
||
|
|
#endif /* MBEDTLS_PSA_CRYPTO_C */
|