mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-23 04:15:43 +01:00
994193326b
We call xxx_init() on a structure when it has been freshly allocated (on the stack or heap). At this point it contains random-looking data none of which should be sensitive, as all sensitive data is wiped using mbedtls_platform_zeroize() when we're done using it and the memory area is going to be reclaimed (by exiting the function or free()ing the buffer).
751 lines
19 KiB
C
751 lines
19 KiB
C
/**
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* \file mbedtls_md.c
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*
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* \brief Generic message digest wrapper for mbed TLS
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*
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* \author Adriaan de Jong <dejong@fox-it.com>
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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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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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#if defined(MBEDTLS_MD_C)
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#include "mbedtls/md.h"
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#include "mbedtls/platform_util.h"
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#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
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#else
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#include <stdlib.h>
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#define mbedtls_calloc calloc
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#define mbedtls_free free
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#endif
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#include <string.h>
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#if defined(MBEDTLS_FS_IO)
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#include <stdio.h>
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#endif
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#if !defined(MBEDTLS_MD_SINGLE_HASH)
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/*
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*
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* Definitions of MD information structures for various digests.
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*
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*/
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/*
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* MD-2
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*/
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#if defined(MBEDTLS_MD2_C)
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static const mbedtls_md_info_t mbedtls_md2_info = {
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MBEDTLS_MD_MD2,
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"MD2",
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16,
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16,
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mbedtls_md2_starts_wrap,
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mbedtls_md2_update_wrap,
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mbedtls_md2_finish_wrap,
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mbedtls_md2_ret,
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mbedtls_md2_ctx_alloc,
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mbedtls_md2_ctx_free,
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mbedtls_md2_clone_wrap,
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mbedtls_md2_process_wrap,
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};
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#endif /* MBEDTLS_MD2_C */
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/*
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* MD-4
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*/
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#if defined(MBEDTLS_MD4_C)
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static const mbedtls_md_info_t mbedtls_md4_info = {
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MBEDTLS_MD_MD4,
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"MD4",
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16,
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64,
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mbedtls_md4_starts_wrap,
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mbedtls_md4_update_wrap,
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mbedtls_md4_finish_wrap,
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mbedtls_md4_ret,
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mbedtls_md4_ctx_alloc,
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mbedtls_md4_ctx_free,
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mbedtls_md4_clone_wrap,
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mbedtls_md4_process_wrap,
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};
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#endif /* MBEDTLS_MD4_C */
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/*
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* MD-5
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*/
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#if defined(MBEDTLS_MD5_C)
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static const mbedtls_md_info_t mbedtls_md5_info = {
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MBEDTLS_MD_MD5,
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"MD5",
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16,
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64,
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mbedtls_md5_starts_wrap,
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mbedtls_md5_update_wrap,
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mbedtls_md5_finish_wrap,
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mbedtls_md5_ret,
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mbedtls_md5_ctx_alloc,
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mbedtls_md5_ctx_free,
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mbedtls_md5_clone_wrap,
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mbedtls_md5_process_wrap,
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};
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#endif /* MBEDTLS_MD5_C */
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/*
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* RIPEMD-160
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*/
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#if defined(MBEDTLS_RIPEMD160_C)
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static const mbedtls_md_info_t mbedtls_ripemd160_info = {
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MBEDTLS_MD_RIPEMD160,
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"RIPEMD160",
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20,
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64,
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mbedtls_ripemd160_starts_wrap,
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mbedtls_ripemd160_update_wrap,
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mbedtls_ripemd160_finish_wrap,
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mbedtls_ripemd160_ret,
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mbedtls_ripemd160_ctx_alloc,
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mbedtls_ripemd160_ctx_free,
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mbedtls_ripemd160_clone_wrap,
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mbedtls_ripemd160_process_wrap,
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};
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#endif /* MBEDTLS_RIPEMD160_C */
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/*
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* SHA-1
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*/
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#if defined(MBEDTLS_SHA1_C)
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static const mbedtls_md_info_t mbedtls_sha1_info = {
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MBEDTLS_MD_SHA1,
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"SHA1",
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20,
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64,
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mbedtls_sha1_starts_wrap,
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mbedtls_sha1_update_wrap,
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mbedtls_sha1_finish_wrap,
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mbedtls_sha1_ret,
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mbedtls_sha1_ctx_alloc,
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mbedtls_sha1_ctx_free,
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mbedtls_sha1_clone_wrap,
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mbedtls_sha1_process_wrap,
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};
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#endif /* MBEDTLS_SHA1_C */
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/*
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* SHA-224 and SHA-256
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*/
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#if defined(MBEDTLS_SHA256_C)
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#if !defined(MBEDTLS_SHA256_NO_SHA224)
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static const mbedtls_md_info_t mbedtls_sha224_info = {
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MBEDTLS_MD_SHA224,
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"SHA224",
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28,
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64,
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mbedtls_sha224_starts_wrap,
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mbedtls_sha224_update_wrap,
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mbedtls_sha224_finish_wrap,
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mbedtls_sha224_wrap,
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mbedtls_sha224_ctx_alloc,
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mbedtls_sha224_ctx_free,
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mbedtls_sha224_clone_wrap,
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mbedtls_sha224_process_wrap,
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};
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#endif /* !MBEDTLS_SHA256_NO_SHA224 */
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static const mbedtls_md_info_t mbedtls_sha256_info =
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MBEDTLS_MD_INFO( MBEDTLS_MD_INFO_SHA256 );
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#endif /* MBEDTLS_SHA256_C */
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/*
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* SHA-384 and SHA-512
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*/
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#if defined(MBEDTLS_SHA512_C)
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static const mbedtls_md_info_t mbedtls_sha384_info = {
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MBEDTLS_MD_SHA384,
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"SHA384",
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48,
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128,
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mbedtls_sha384_starts_wrap,
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mbedtls_sha384_update_wrap,
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mbedtls_sha384_finish_wrap,
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mbedtls_sha384_wrap,
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mbedtls_sha384_ctx_alloc,
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mbedtls_sha384_ctx_free,
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mbedtls_sha384_clone_wrap,
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mbedtls_sha384_process_wrap,
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};
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static const mbedtls_md_info_t mbedtls_sha512_info = {
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MBEDTLS_MD_SHA512,
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"SHA512",
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64,
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128,
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mbedtls_sha512_starts_wrap,
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mbedtls_sha384_update_wrap,
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mbedtls_sha384_finish_wrap,
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mbedtls_sha512_wrap,
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mbedtls_sha384_ctx_alloc,
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mbedtls_sha384_ctx_free,
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mbedtls_sha384_clone_wrap,
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mbedtls_sha384_process_wrap,
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};
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#endif /* MBEDTLS_SHA512_C */
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/*
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* Reminder: update profiles in x509_crt.c when adding a new hash!
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*/
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static const int supported_digests[] = {
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#if defined(MBEDTLS_SHA512_C)
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MBEDTLS_MD_SHA512,
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MBEDTLS_MD_SHA384,
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#endif
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#if defined(MBEDTLS_SHA256_C)
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MBEDTLS_MD_SHA256,
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#if !defined(MBEDTLS_SHA256_NO_SHA224)
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MBEDTLS_MD_SHA224,
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#endif
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#endif /* MBEDTLS_SHA256_C */
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#if defined(MBEDTLS_SHA1_C)
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MBEDTLS_MD_SHA1,
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#endif
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#if defined(MBEDTLS_RIPEMD160_C)
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MBEDTLS_MD_RIPEMD160,
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#endif
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#if defined(MBEDTLS_MD5_C)
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MBEDTLS_MD_MD5,
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#endif
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#if defined(MBEDTLS_MD4_C)
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MBEDTLS_MD_MD4,
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#endif
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#if defined(MBEDTLS_MD2_C)
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MBEDTLS_MD_MD2,
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#endif
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MBEDTLS_MD_NONE
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};
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const int *mbedtls_md_list( void )
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{
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return( supported_digests );
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}
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mbedtls_md_handle_t mbedtls_md_info_from_string( const char *md_name )
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{
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if( NULL == md_name )
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return( NULL );
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/* Get the appropriate digest information */
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#if defined(MBEDTLS_MD2_C)
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if( !strcmp( "MD2", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_MD2 );
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#endif
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#if defined(MBEDTLS_MD4_C)
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if( !strcmp( "MD4", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_MD4 );
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#endif
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#if defined(MBEDTLS_MD5_C)
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if( !strcmp( "MD5", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_MD5 );
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#endif
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#if defined(MBEDTLS_RIPEMD160_C)
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if( !strcmp( "RIPEMD160", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_RIPEMD160 );
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#endif
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#if defined(MBEDTLS_SHA1_C)
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if( !strcmp( "SHA1", md_name ) || !strcmp( "SHA", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
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#endif
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#if defined(MBEDTLS_SHA256_C)
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#if !defined(MBEDTLS_SHA256_NO_SHA224)
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if( !strcmp( "SHA224", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_SHA224 );
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#endif
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if( !strcmp( "SHA256", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 );
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#endif /* MBEDTLS_SHA256_C */
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#if defined(MBEDTLS_SHA512_C)
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if( !strcmp( "SHA384", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 );
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if( !strcmp( "SHA512", md_name ) )
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return mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 );
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#endif
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return( NULL );
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}
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mbedtls_md_handle_t mbedtls_md_info_from_type( mbedtls_md_type_t md_type )
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{
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switch( md_type )
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{
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#if defined(MBEDTLS_MD2_C)
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case MBEDTLS_MD_MD2:
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return( &mbedtls_md2_info );
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#endif
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#if defined(MBEDTLS_MD4_C)
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case MBEDTLS_MD_MD4:
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return( &mbedtls_md4_info );
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#endif
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#if defined(MBEDTLS_MD5_C)
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case MBEDTLS_MD_MD5:
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return( &mbedtls_md5_info );
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#endif
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#if defined(MBEDTLS_RIPEMD160_C)
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case MBEDTLS_MD_RIPEMD160:
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return( &mbedtls_ripemd160_info );
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#endif
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#if defined(MBEDTLS_SHA1_C)
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case MBEDTLS_MD_SHA1:
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return( &mbedtls_sha1_info );
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#endif
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#if defined(MBEDTLS_SHA256_C)
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#if !defined(MBEDTLS_SHA256_NO_SHA224)
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case MBEDTLS_MD_SHA224:
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return( &mbedtls_sha224_info );
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#endif
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case MBEDTLS_MD_SHA256:
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return( &mbedtls_sha256_info );
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#endif /* MBEDTLS_SHA256_C */
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#if defined(MBEDTLS_SHA512_C)
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case MBEDTLS_MD_SHA384:
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return( &mbedtls_sha384_info );
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case MBEDTLS_MD_SHA512:
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return( &mbedtls_sha512_info );
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#endif
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default:
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return( NULL );
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}
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}
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#else /* MBEDTLS_MD_SINGLE_HASH */
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const int *mbedtls_md_list( void )
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{
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static int single_hash[2] =
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{ MBEDTLS_MD_INFO_TYPE( MBEDTLS_MD_SINGLE_HASH ),
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MBEDTLS_MD_INVALID_HANDLE };
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return( single_hash );
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}
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mbedtls_md_handle_t mbedtls_md_info_from_string( const char *md_name )
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{
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static const char * const hash_name =
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MBEDTLS_MD_INFO_NAME( MBEDTLS_MD_SINGLE_HASH );
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if( md_name != NULL && strcmp( hash_name, md_name ) == 0 )
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return( MBEDTLS_MD_UNIQUE_VALID_HANDLE );
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return( MBEDTLS_MD_INVALID_HANDLE );
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}
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mbedtls_md_handle_t mbedtls_md_info_from_type( mbedtls_md_type_t md_type )
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{
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static const mbedtls_md_type_t hash_type =
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MBEDTLS_MD_INFO_TYPE( MBEDTLS_MD_SINGLE_HASH );
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if( hash_type == md_type )
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return( MBEDTLS_MD_UNIQUE_VALID_HANDLE );
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return( MBEDTLS_MD_INVALID_HANDLE );
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}
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#endif /* MBEDTLS_MD_SINGLE_HASH */
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void mbedtls_md_init( mbedtls_md_context_t *ctx )
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{
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memset( ctx, 0, sizeof( mbedtls_md_context_t ) );
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#if defined(MBEDTLS_MD_SINGLE_HASH)
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mbedtls_md_info_init( mbedtls_md_get_handle( ctx ),
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ctx->md_ctx );
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#endif
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}
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void mbedtls_md_free( mbedtls_md_context_t *ctx )
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{
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if( ctx == NULL || mbedtls_md_get_handle( ctx ) == MBEDTLS_MD_INVALID_HANDLE )
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return;
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#if !defined(MBEDTLS_MD_SINGLE_HASH)
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if( ctx->md_ctx != NULL )
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{
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mbedtls_md_info_ctx_free( mbedtls_md_get_handle( ctx ), ctx->md_ctx );
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}
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if( ctx->hmac_ctx != NULL )
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{
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mbedtls_platform_zeroize( ctx->hmac_ctx,
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2 * mbedtls_md_info_block_size( mbedtls_md_get_handle( ctx ) ) );
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mbedtls_free( ctx->hmac_ctx );
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}
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#endif /* MBEDTLS_MD_SINGLE_HASH */
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mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md_context_t ) );
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}
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int mbedtls_md_clone( mbedtls_md_context_t *dst,
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const mbedtls_md_context_t *src )
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{
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if( dst == NULL || mbedtls_md_get_handle( dst ) == MBEDTLS_MD_INVALID_HANDLE ||
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src == NULL || mbedtls_md_get_handle( src ) == MBEDTLS_MD_INVALID_HANDLE ||
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mbedtls_md_get_handle( dst ) != mbedtls_md_get_handle( src ) )
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{
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return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
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}
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mbedtls_md_info_clone( mbedtls_md_get_handle( dst ),
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dst->md_ctx, src->md_ctx );
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return( 0 );
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}
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#if ! defined(MBEDTLS_DEPRECATED_REMOVED)
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int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, mbedtls_md_handle_t md_info )
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{
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return mbedtls_md_setup( ctx, md_info, 1 );
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}
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#endif
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#if !defined(MBEDTLS_MD_SINGLE_HASH)
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int mbedtls_md_setup( mbedtls_md_context_t *ctx, mbedtls_md_handle_t md_info, int hmac )
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{
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return( mbedtls_md_setup_internal( ctx, md_info, hmac ) );
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}
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int mbedtls_md_starts( mbedtls_md_context_t *ctx )
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{
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return( mbedtls_md_starts_internal( ctx ) );
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}
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int mbedtls_md_update( mbedtls_md_context_t *ctx,
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const unsigned char *input,
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size_t ilen )
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{
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return( mbedtls_md_update_internal( ctx, input, ilen ) );
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}
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int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output )
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{
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return( mbedtls_md_finish_internal( ctx, output ) );
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}
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int mbedtls_md( mbedtls_md_handle_t md_info, const unsigned char *input, size_t ilen,
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unsigned char *output )
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{
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return( mbedtls_md_internal( md_info, input, ilen, output ) );
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}
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#endif /* !MBEDTLS_MD_SINGLE_HASH */
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#if defined(MBEDTLS_FS_IO)
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int mbedtls_md_file( mbedtls_md_handle_t md_info, const char *path, unsigned char *output )
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{
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int ret;
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FILE *f;
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size_t n;
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mbedtls_md_context_t ctx;
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unsigned char buf[1024];
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if( md_info == MBEDTLS_MD_INVALID_HANDLE )
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return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
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if( ( f = fopen( path, "rb" ) ) == NULL )
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return( MBEDTLS_ERR_MD_FILE_IO_ERROR );
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mbedtls_md_init( &ctx );
|
|
|
|
if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
|
|
goto cleanup;
|
|
|
|
ret = mbedtls_md_info_starts( md_info, ctx.md_ctx );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
|
|
{
|
|
ret = mbedtls_md_info_update( md_info, ctx.md_ctx,
|
|
buf, n );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
}
|
|
|
|
if( ferror( f ) != 0 )
|
|
{
|
|
ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
|
|
}
|
|
else
|
|
{
|
|
ret = mbedtls_md_info_finish( md_info, ctx.md_ctx,
|
|
output );
|
|
}
|
|
|
|
cleanup:
|
|
mbedtls_platform_zeroize( buf, sizeof( buf ) );
|
|
fclose( f );
|
|
mbedtls_md_free( &ctx );
|
|
|
|
return( ret );
|
|
}
|
|
#endif /* MBEDTLS_FS_IO */
|
|
|
|
int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen )
|
|
{
|
|
int ret;
|
|
unsigned char sum[MBEDTLS_MD_MAX_SIZE];
|
|
unsigned char *ipad, *opad;
|
|
size_t i;
|
|
|
|
mbedtls_md_handle_t md_info;
|
|
|
|
if( ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
#if !defined(MBEDTLS_MD_SINGLE_HASH)
|
|
if( ctx->hmac_ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
#endif /* !MBEDTLS_MD_SINGLE_HASH */
|
|
|
|
md_info = mbedtls_md_get_handle( ctx );
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
if( keylen > (size_t) mbedtls_md_info_block_size( md_info ) )
|
|
{
|
|
if( ( ret = mbedtls_md_info_starts( md_info, ctx->md_ctx ) ) != 0 )
|
|
goto cleanup;
|
|
|
|
if( ( ret = mbedtls_md_info_update( md_info, ctx->md_ctx,
|
|
key, keylen ) ) != 0 )
|
|
{
|
|
goto cleanup;
|
|
}
|
|
|
|
if( ( ret = mbedtls_md_info_finish( md_info, ctx->md_ctx, sum ) ) != 0 )
|
|
goto cleanup;
|
|
|
|
keylen = mbedtls_md_info_size( md_info );
|
|
key = sum;
|
|
}
|
|
|
|
ipad = (unsigned char *) ctx->hmac_ctx;
|
|
opad = (unsigned char *) ctx->hmac_ctx +
|
|
mbedtls_md_info_block_size( md_info );
|
|
|
|
mbedtls_platform_memset( ipad, 0x36, mbedtls_md_info_block_size( md_info ) );
|
|
mbedtls_platform_memset( opad, 0x5C, mbedtls_md_info_block_size( md_info ) );
|
|
|
|
for( i = 0; i < keylen; i++ )
|
|
{
|
|
ipad[i] = (unsigned char)( ipad[i] ^ key[i] );
|
|
opad[i] = (unsigned char)( opad[i] ^ key[i] );
|
|
}
|
|
|
|
if( ( ret = mbedtls_md_info_starts( md_info, ctx->md_ctx ) ) != 0 )
|
|
goto cleanup;
|
|
|
|
if( ( ret = mbedtls_md_info_update( md_info, ctx->md_ctx, ipad,
|
|
mbedtls_md_info_block_size( md_info ) ) ) != 0 )
|
|
{
|
|
goto cleanup;
|
|
}
|
|
|
|
cleanup:
|
|
mbedtls_platform_zeroize( sum, sizeof( sum ) );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx,
|
|
const unsigned char *input, size_t ilen )
|
|
{
|
|
mbedtls_md_handle_t md_info;
|
|
|
|
if( ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
#if !defined(MBEDTLS_MD_SINGLE_HASH)
|
|
if( ctx->hmac_ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
#endif /* !MBEDTLS_MD_SINGLE_HASH */
|
|
|
|
md_info = mbedtls_md_get_handle( ctx );
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
return( mbedtls_md_info_update( md_info,
|
|
ctx->md_ctx, input,
|
|
ilen ) );
|
|
}
|
|
|
|
int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output )
|
|
{
|
|
int ret;
|
|
unsigned char tmp[MBEDTLS_MD_MAX_SIZE];
|
|
unsigned char *opad;
|
|
|
|
mbedtls_md_handle_t md_info;
|
|
|
|
if( ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
#if !defined(MBEDTLS_MD_SINGLE_HASH)
|
|
if( ctx->hmac_ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
#endif /* !MBEDTLS_MD_SINGLE_HASH */
|
|
|
|
md_info = mbedtls_md_get_handle( ctx );
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
opad = (unsigned char *) ctx->hmac_ctx +
|
|
mbedtls_md_info_block_size( md_info );
|
|
|
|
if( ( ret = mbedtls_md_info_finish( md_info, ctx->md_ctx, tmp ) ) != 0 )
|
|
return( ret );
|
|
|
|
if( ( ret = mbedtls_md_info_starts( md_info, ctx->md_ctx ) ) != 0 )
|
|
return( ret );
|
|
|
|
if( ( ret = mbedtls_md_info_update( md_info, ctx->md_ctx, opad,
|
|
mbedtls_md_info_block_size( md_info ) ) ) != 0 )
|
|
{
|
|
return( ret );
|
|
}
|
|
|
|
if( ( ret = mbedtls_md_info_update( md_info, ctx->md_ctx, tmp,
|
|
mbedtls_md_info_size( md_info ) ) ) != 0 )
|
|
{
|
|
return( ret );
|
|
}
|
|
|
|
if( ( ret = mbedtls_md_info_finish( md_info, ctx->md_ctx, output ) ) != 0 )
|
|
return( ret );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx )
|
|
{
|
|
int ret;
|
|
unsigned char *ipad;
|
|
|
|
mbedtls_md_handle_t md_info;
|
|
|
|
if( ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
#if !defined(MBEDTLS_MD_SINGLE_HASH)
|
|
if( ctx->hmac_ctx == NULL )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
#endif /* !MBEDTLS_MD_SINGLE_HASH */
|
|
|
|
md_info = mbedtls_md_get_handle( ctx );
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
ipad = (unsigned char *) ctx->hmac_ctx;
|
|
|
|
ret = mbedtls_md_info_starts( md_info, ctx->md_ctx );
|
|
if( ret != 0 )
|
|
return( ret );
|
|
|
|
ret = mbedtls_md_info_update( md_info,
|
|
ctx->md_ctx, ipad,
|
|
mbedtls_md_info_block_size( md_info ) );
|
|
return( ret );
|
|
}
|
|
|
|
int mbedtls_md_hmac( mbedtls_md_handle_t md_info,
|
|
const unsigned char *key, size_t keylen,
|
|
const unsigned char *input, size_t ilen,
|
|
unsigned char *output )
|
|
{
|
|
mbedtls_md_context_t ctx;
|
|
int ret;
|
|
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
|
|
|
|
mbedtls_md_init( &ctx );
|
|
|
|
if( ( ret = mbedtls_md_setup( &ctx, md_info, 1 ) ) != 0 )
|
|
goto cleanup;
|
|
|
|
if( ( ret = mbedtls_md_hmac_starts( &ctx, key, keylen ) ) != 0 )
|
|
goto cleanup;
|
|
if( ( ret = mbedtls_md_hmac_update( &ctx, input, ilen ) ) != 0 )
|
|
goto cleanup;
|
|
if( ( ret = mbedtls_md_hmac_finish( &ctx, output ) ) != 0 )
|
|
goto cleanup;
|
|
|
|
cleanup:
|
|
mbedtls_md_free( &ctx );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
#if !defined(MBEDTLS_MD_SINGLE_HASH)
|
|
int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data )
|
|
{
|
|
return( mbedtls_md_process_internal( ctx, data ) );
|
|
}
|
|
#endif /* !MBEDTLS_MD_SINGLE_HASH */
|
|
|
|
unsigned char mbedtls_md_get_size( mbedtls_md_handle_t md_info )
|
|
{
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( 0 );
|
|
|
|
return mbedtls_md_info_size( md_info );
|
|
}
|
|
|
|
mbedtls_md_type_t mbedtls_md_get_type( mbedtls_md_handle_t md_info )
|
|
{
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( MBEDTLS_MD_NONE );
|
|
|
|
return mbedtls_md_info_type( md_info );
|
|
}
|
|
|
|
const char *mbedtls_md_get_name( mbedtls_md_handle_t md_info )
|
|
{
|
|
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
|
|
return( NULL );
|
|
|
|
return mbedtls_md_info_name( md_info );
|
|
}
|
|
|
|
#endif /* MBEDTLS_MD_C */
|