diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/library/md.c')
| -rw-r--r-- | lib/mbedtls-2.27.0/library/md.c | 890 |
1 files changed, 0 insertions, 890 deletions
diff --git a/lib/mbedtls-2.27.0/library/md.c b/lib/mbedtls-2.27.0/library/md.c deleted file mode 100644 index a10a835..0000000 --- a/lib/mbedtls-2.27.0/library/md.c +++ /dev/null @@ -1,890 +0,0 @@ -/** - * \file md.c - * - * \brief Generic message digest wrapper for mbed TLS - * - * \author Adriaan de Jong <dejong@fox-it.com> - * - * 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_MD_C) - -#include "mbedtls/md.h" -#include "mbedtls/md_internal.h" -#include "mbedtls/platform_util.h" -#include "mbedtls/error.h" - -#include "mbedtls/md2.h" -#include "mbedtls/md4.h" -#include "mbedtls/md5.h" -#include "mbedtls/ripemd160.h" -#include "mbedtls/sha1.h" -#include "mbedtls/sha256.h" -#include "mbedtls/sha512.h" - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include <stdlib.h> -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include <string.h> - -#if defined(MBEDTLS_FS_IO) -#include <stdio.h> -#endif - -#if defined(MBEDTLS_MD2_C) -const mbedtls_md_info_t mbedtls_md2_info = { - "MD2", - MBEDTLS_MD_MD2, - 16, - 16, -}; -#endif - -#if defined(MBEDTLS_MD4_C) -const mbedtls_md_info_t mbedtls_md4_info = { - "MD4", - MBEDTLS_MD_MD4, - 16, - 64, -}; -#endif - -#if defined(MBEDTLS_MD5_C) -const mbedtls_md_info_t mbedtls_md5_info = { - "MD5", - MBEDTLS_MD_MD5, - 16, - 64, -}; -#endif - -#if defined(MBEDTLS_RIPEMD160_C) -const mbedtls_md_info_t mbedtls_ripemd160_info = { - "RIPEMD160", - MBEDTLS_MD_RIPEMD160, - 20, - 64, -}; -#endif - -#if defined(MBEDTLS_SHA1_C) -const mbedtls_md_info_t mbedtls_sha1_info = { - "SHA1", - MBEDTLS_MD_SHA1, - 20, - 64, -}; -#endif - -#if defined(MBEDTLS_SHA256_C) -const mbedtls_md_info_t mbedtls_sha224_info = { - "SHA224", - MBEDTLS_MD_SHA224, - 28, - 64, -}; - -const mbedtls_md_info_t mbedtls_sha256_info = { - "SHA256", - MBEDTLS_MD_SHA256, - 32, - 64, -}; -#endif - -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) -const mbedtls_md_info_t mbedtls_sha384_info = { - "SHA384", - MBEDTLS_MD_SHA384, - 48, - 128, -}; -#endif - -const mbedtls_md_info_t mbedtls_sha512_info = { - "SHA512", - MBEDTLS_MD_SHA512, - 64, - 128, -}; -#endif - -/* - * Reminder: update profiles in x509_crt.c when adding a new hash! - */ -static const int supported_digests[] = { - -#if defined(MBEDTLS_SHA512_C) - MBEDTLS_MD_SHA512, -#if !defined(MBEDTLS_SHA512_NO_SHA384) - MBEDTLS_MD_SHA384, -#endif -#endif - -#if defined(MBEDTLS_SHA256_C) - MBEDTLS_MD_SHA256, - MBEDTLS_MD_SHA224, -#endif - -#if defined(MBEDTLS_SHA1_C) - MBEDTLS_MD_SHA1, -#endif - -#if defined(MBEDTLS_RIPEMD160_C) - MBEDTLS_MD_RIPEMD160, -#endif - -#if defined(MBEDTLS_MD5_C) - MBEDTLS_MD_MD5, -#endif - -#if defined(MBEDTLS_MD4_C) - MBEDTLS_MD_MD4, -#endif - -#if defined(MBEDTLS_MD2_C) - MBEDTLS_MD_MD2, -#endif - - MBEDTLS_MD_NONE -}; - -const int *mbedtls_md_list( void ) -{ - return( supported_digests ); -} - -const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name ) -{ - if( NULL == md_name ) - return( NULL ); - - /* Get the appropriate digest information */ -#if defined(MBEDTLS_MD2_C) - if( !strcmp( "MD2", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_MD2 ); -#endif -#if defined(MBEDTLS_MD4_C) - if( !strcmp( "MD4", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_MD4 ); -#endif -#if defined(MBEDTLS_MD5_C) - if( !strcmp( "MD5", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - if( !strcmp( "RIPEMD160", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_RIPEMD160 ); -#endif -#if defined(MBEDTLS_SHA1_C) - if( !strcmp( "SHA1", md_name ) || !strcmp( "SHA", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ); -#endif -#if defined(MBEDTLS_SHA256_C) - if( !strcmp( "SHA224", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_SHA224 ); - if( !strcmp( "SHA256", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - if( !strcmp( "SHA384", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 ); -#endif - if( !strcmp( "SHA512", md_name ) ) - return mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 ); -#endif - return( NULL ); -} - -const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t md_type ) -{ - switch( md_type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - return( &mbedtls_md2_info ); -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - return( &mbedtls_md4_info ); -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( &mbedtls_md5_info ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - return( &mbedtls_ripemd160_info ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( &mbedtls_sha1_info ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - return( &mbedtls_sha224_info ); - case MBEDTLS_MD_SHA256: - return( &mbedtls_sha256_info ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: - return( &mbedtls_sha384_info ); -#endif - case MBEDTLS_MD_SHA512: - return( &mbedtls_sha512_info ); -#endif - default: - return( NULL ); - } -} - -void mbedtls_md_init( mbedtls_md_context_t *ctx ) -{ - memset( ctx, 0, sizeof( mbedtls_md_context_t ) ); -} - -void mbedtls_md_free( mbedtls_md_context_t *ctx ) -{ - if( ctx == NULL || ctx->md_info == NULL ) - return; - - if( ctx->md_ctx != NULL ) - { - switch( ctx->md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - mbedtls_md2_free( ctx->md_ctx ); - break; -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - mbedtls_md4_free( ctx->md_ctx ); - break; -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - mbedtls_md5_free( ctx->md_ctx ); - break; -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - mbedtls_ripemd160_free( ctx->md_ctx ); - break; -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - mbedtls_sha1_free( ctx->md_ctx ); - break; -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - case MBEDTLS_MD_SHA256: - mbedtls_sha256_free( ctx->md_ctx ); - break; -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: -#endif - case MBEDTLS_MD_SHA512: - mbedtls_sha512_free( ctx->md_ctx ); - break; -#endif - default: - /* Shouldn't happen */ - break; - } - mbedtls_free( ctx->md_ctx ); - } - - if( ctx->hmac_ctx != NULL ) - { - mbedtls_platform_zeroize( ctx->hmac_ctx, - 2 * ctx->md_info->block_size ); - mbedtls_free( ctx->hmac_ctx ); - } - - mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md_context_t ) ); -} - -int mbedtls_md_clone( mbedtls_md_context_t *dst, - const mbedtls_md_context_t *src ) -{ - if( dst == NULL || dst->md_info == NULL || - src == NULL || src->md_info == NULL || - dst->md_info != src->md_info ) - { - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } - - switch( src->md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - mbedtls_md2_clone( dst->md_ctx, src->md_ctx ); - break; -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - mbedtls_md4_clone( dst->md_ctx, src->md_ctx ); - break; -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - mbedtls_md5_clone( dst->md_ctx, src->md_ctx ); - break; -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - mbedtls_ripemd160_clone( dst->md_ctx, src->md_ctx ); - break; -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - mbedtls_sha1_clone( dst->md_ctx, src->md_ctx ); - break; -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - case MBEDTLS_MD_SHA256: - mbedtls_sha256_clone( dst->md_ctx, src->md_ctx ); - break; -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: -#endif - case MBEDTLS_MD_SHA512: - mbedtls_sha512_clone( dst->md_ctx, src->md_ctx ); - break; -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } - - return( 0 ); -} - -#if ! defined(MBEDTLS_DEPRECATED_REMOVED) -int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info ) -{ - return mbedtls_md_setup( ctx, md_info, 1 ); -} -#endif - -#define ALLOC( type ) \ - do { \ - ctx->md_ctx = mbedtls_calloc( 1, sizeof( mbedtls_##type##_context ) ); \ - if( ctx->md_ctx == NULL ) \ - return( MBEDTLS_ERR_MD_ALLOC_FAILED ); \ - mbedtls_##type##_init( ctx->md_ctx ); \ - } \ - while( 0 ) - -int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac ) -{ - if( md_info == NULL || ctx == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - ctx->md_info = md_info; - ctx->md_ctx = NULL; - ctx->hmac_ctx = NULL; - - switch( md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - ALLOC( md2 ); - break; -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - ALLOC( md4 ); - break; -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - ALLOC( md5 ); - break; -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - ALLOC( ripemd160 ); - break; -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - ALLOC( sha1 ); - break; -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - case MBEDTLS_MD_SHA256: - ALLOC( sha256 ); - break; -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: -#endif - case MBEDTLS_MD_SHA512: - ALLOC( sha512 ); - break; -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } - - if( hmac != 0 ) - { - ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size ); - if( ctx->hmac_ctx == NULL ) - { - mbedtls_md_free( ctx ); - return( MBEDTLS_ERR_MD_ALLOC_FAILED ); - } - } - - return( 0 ); -} -#undef ALLOC - -int mbedtls_md_starts( mbedtls_md_context_t *ctx ) -{ - if( ctx == NULL || ctx->md_info == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - switch( ctx->md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - return( mbedtls_md2_starts_ret( ctx->md_ctx ) ); -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - return( mbedtls_md4_starts_ret( ctx->md_ctx ) ); -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( mbedtls_md5_starts_ret( ctx->md_ctx ) ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - return( mbedtls_ripemd160_starts_ret( ctx->md_ctx ) ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( mbedtls_sha1_starts_ret( ctx->md_ctx ) ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - return( mbedtls_sha256_starts_ret( ctx->md_ctx, 1 ) ); - case MBEDTLS_MD_SHA256: - return( mbedtls_sha256_starts_ret( ctx->md_ctx, 0 ) ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: - return( mbedtls_sha512_starts_ret( ctx->md_ctx, 1 ) ); -#endif - case MBEDTLS_MD_SHA512: - return( mbedtls_sha512_starts_ret( ctx->md_ctx, 0 ) ); -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } -} - -int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen ) -{ - if( ctx == NULL || ctx->md_info == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - switch( ctx->md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - return( mbedtls_md2_update_ret( ctx->md_ctx, input, ilen ) ); -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - return( mbedtls_md4_update_ret( ctx->md_ctx, input, ilen ) ); -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( mbedtls_md5_update_ret( ctx->md_ctx, input, ilen ) ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - return( mbedtls_ripemd160_update_ret( ctx->md_ctx, input, ilen ) ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( mbedtls_sha1_update_ret( ctx->md_ctx, input, ilen ) ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - case MBEDTLS_MD_SHA256: - return( mbedtls_sha256_update_ret( ctx->md_ctx, input, ilen ) ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: -#endif - case MBEDTLS_MD_SHA512: - return( mbedtls_sha512_update_ret( ctx->md_ctx, input, ilen ) ); -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } -} - -int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output ) -{ - if( ctx == NULL || ctx->md_info == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - switch( ctx->md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - return( mbedtls_md2_finish_ret( ctx->md_ctx, output ) ); -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - return( mbedtls_md4_finish_ret( ctx->md_ctx, output ) ); -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( mbedtls_md5_finish_ret( ctx->md_ctx, output ) ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - return( mbedtls_ripemd160_finish_ret( ctx->md_ctx, output ) ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( mbedtls_sha1_finish_ret( ctx->md_ctx, output ) ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - case MBEDTLS_MD_SHA256: - return( mbedtls_sha256_finish_ret( ctx->md_ctx, output ) ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: -#endif - case MBEDTLS_MD_SHA512: - return( mbedtls_sha512_finish_ret( ctx->md_ctx, output ) ); -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } -} - -int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen, - unsigned char *output ) -{ - if( md_info == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - switch( md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - return( mbedtls_md2_ret( input, ilen, output ) ); -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - return( mbedtls_md4_ret( input, ilen, output ) ); -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( mbedtls_md5_ret( input, ilen, output ) ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - return( mbedtls_ripemd160_ret( input, ilen, output ) ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( mbedtls_sha1_ret( input, ilen, output ) ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - return( mbedtls_sha256_ret( input, ilen, output, 1 ) ); - case MBEDTLS_MD_SHA256: - return( mbedtls_sha256_ret( input, ilen, output, 0 ) ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: - return( mbedtls_sha512_ret( input, ilen, output, 1 ) ); -#endif - case MBEDTLS_MD_SHA512: - return( mbedtls_sha512_ret( input, ilen, output, 0 ) ); -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } -} - -#if defined(MBEDTLS_FS_IO) -int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - FILE *f; - size_t n; - mbedtls_md_context_t ctx; - unsigned char buf[1024]; - - if( md_info == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - if( ( f = fopen( path, "rb" ) ) == NULL ) - return( MBEDTLS_ERR_MD_FILE_IO_ERROR ); - - mbedtls_md_init( &ctx ); - - if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 ) - goto cleanup; - - if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 ) - goto cleanup; - - while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) - if( ( ret = mbedtls_md_update( &ctx, buf, n ) ) != 0 ) - goto cleanup; - - if( ferror( f ) != 0 ) - ret = MBEDTLS_ERR_MD_FILE_IO_ERROR; - else - ret = mbedtls_md_finish( &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 = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char sum[MBEDTLS_MD_MAX_SIZE]; - unsigned char *ipad, *opad; - size_t i; - - if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - if( keylen > (size_t) ctx->md_info->block_size ) - { - if( ( ret = mbedtls_md_starts( ctx ) ) != 0 ) - goto cleanup; - if( ( ret = mbedtls_md_update( ctx, key, keylen ) ) != 0 ) - goto cleanup; - if( ( ret = mbedtls_md_finish( ctx, sum ) ) != 0 ) - goto cleanup; - - keylen = ctx->md_info->size; - key = sum; - } - - ipad = (unsigned char *) ctx->hmac_ctx; - opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size; - - memset( ipad, 0x36, ctx->md_info->block_size ); - memset( opad, 0x5C, ctx->md_info->block_size ); - - 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_starts( ctx ) ) != 0 ) - goto cleanup; - if( ( ret = mbedtls_md_update( ctx, ipad, - ctx->md_info->block_size ) ) != 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 ) -{ - if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - return( mbedtls_md_update( ctx, input, ilen ) ); -} - -int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char tmp[MBEDTLS_MD_MAX_SIZE]; - unsigned char *opad; - - if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size; - - if( ( ret = mbedtls_md_finish( ctx, tmp ) ) != 0 ) - return( ret ); - if( ( ret = mbedtls_md_starts( ctx ) ) != 0 ) - return( ret ); - if( ( ret = mbedtls_md_update( ctx, opad, - ctx->md_info->block_size ) ) != 0 ) - return( ret ); - if( ( ret = mbedtls_md_update( ctx, tmp, - ctx->md_info->size ) ) != 0 ) - return( ret ); - return( mbedtls_md_finish( ctx, output ) ); -} - -int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char *ipad; - - if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - ipad = (unsigned char *) ctx->hmac_ctx; - - if( ( ret = mbedtls_md_starts( ctx ) ) != 0 ) - return( ret ); - return( mbedtls_md_update( ctx, ipad, ctx->md_info->block_size ) ); -} - -int mbedtls_md_hmac( const mbedtls_md_info_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 = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - if( md_info == NULL ) - 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 ); -} - -int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data ) -{ - if( ctx == NULL || ctx->md_info == NULL ) - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - - switch( ctx->md_info->type ) - { -#if defined(MBEDTLS_MD2_C) - case MBEDTLS_MD_MD2: - return( mbedtls_internal_md2_process( ctx->md_ctx ) ); -#endif -#if defined(MBEDTLS_MD4_C) - case MBEDTLS_MD_MD4: - return( mbedtls_internal_md4_process( ctx->md_ctx, data ) ); -#endif -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( mbedtls_internal_md5_process( ctx->md_ctx, data ) ); -#endif -#if defined(MBEDTLS_RIPEMD160_C) - case MBEDTLS_MD_RIPEMD160: - return( mbedtls_internal_ripemd160_process( ctx->md_ctx, data ) ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( mbedtls_internal_sha1_process( ctx->md_ctx, data ) ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - case MBEDTLS_MD_SHA256: - return( mbedtls_internal_sha256_process( ctx->md_ctx, data ) ); -#endif -#if defined(MBEDTLS_SHA512_C) -#if !defined(MBEDTLS_SHA512_NO_SHA384) - case MBEDTLS_MD_SHA384: -#endif - case MBEDTLS_MD_SHA512: - return( mbedtls_internal_sha512_process( ctx->md_ctx, data ) ); -#endif - default: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - } -} - -unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info ) -{ - if( md_info == NULL ) - return( 0 ); - - return md_info->size; -} - -mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info ) -{ - if( md_info == NULL ) - return( MBEDTLS_MD_NONE ); - - return md_info->type; -} - -const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info ) -{ - if( md_info == NULL ) - return( NULL ); - - return md_info->name; -} - -#endif /* MBEDTLS_MD_C */ |