Diff: mbedtls/source/md.c

Revision:

13:bed103425508

Parent:

12:0071cb144c7a

Child:

14:79bcbfbb93c7

--- a/mbedtls/source/md.c	Tue Nov 01 14:22:56 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,471 +0,0 @@
-/**
- * \file mbedtls_md.c
- *
- * \brief Generic message digest wrapper for mbed TLS
- *
- * \author Adriaan de Jong <dejong@fox-it.com>
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  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.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_MD_C)
-
-#include "mbedtls/md.h"
-#include "mbedtls/md_internal.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
-
-/* Implementation that should never be optimized out by the compiler */
-static void mbedtls_zeroize( void *v, size_t n ) {
-    volatile unsigned char *p = v; while( n-- ) *p++ = 0;
-}
-
-/*
- * 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,
-        MBEDTLS_MD_SHA384,
-#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( !strcmp( "SHA384", md_name ) )
-        return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 );
-    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)
-        case MBEDTLS_MD_SHA384:
-            return( &mbedtls_sha384_info );
-        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 )
-        ctx->md_info->ctx_free_func( ctx->md_ctx );
-
-    if( ctx->hmac_ctx != NULL )
-    {
-        mbedtls_zeroize( ctx->hmac_ctx, 2 * ctx->md_info->block_size );
-        mbedtls_free( ctx->hmac_ctx );
-    }
-
-    mbedtls_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 );
-    }
-
-    dst->md_info->clone_func( dst->md_ctx, src->md_ctx );
-
-    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
-
-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 );
-
-    if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )
-        return( MBEDTLS_ERR_MD_ALLOC_FAILED );
-
-    if( hmac != 0 )
-    {
-        ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size );
-        if( ctx->hmac_ctx == NULL )
-        {
-            md_info->ctx_free_func( ctx->md_ctx );
-            return( MBEDTLS_ERR_MD_ALLOC_FAILED );
-        }
-    }
-
-    ctx->md_info = md_info;
-
-    return( 0 );
-}
-
-int mbedtls_md_starts( mbedtls_md_context_t *ctx )
-{
-    if( ctx == NULL || ctx->md_info == NULL )
-        return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
-
-    ctx->md_info->starts_func( ctx->md_ctx );
-
-    return( 0 );
-}
-
-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 );
-
-    ctx->md_info->update_func( ctx->md_ctx, input, ilen );
-
-    return( 0 );
-}
-
-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 );
-
-    ctx->md_info->finish_func( ctx->md_ctx, output );
-
-    return( 0 );
-}
-
-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 );
-
-    md_info->digest_func( input, ilen, output );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_FS_IO)
-int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output )
-{
-    int ret;
-    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;
-
-    md_info->starts_func( ctx.md_ctx );
-
-    while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
-        md_info->update_func( ctx.md_ctx, buf, n );
-
-    if( ferror( f ) != 0 )
-    {
-        ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
-        goto cleanup;
-    }
-
-    md_info->finish_func( ctx.md_ctx, output );
-
-cleanup:
-    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 )
-{
-    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 )
-    {
-        ctx->md_info->starts_func( ctx->md_ctx );
-        ctx->md_info->update_func( ctx->md_ctx, key, keylen );
-        ctx->md_info->finish_func( ctx->md_ctx, sum );
-
-        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] );
-    }
-
-    mbedtls_zeroize( sum, sizeof( sum ) );
-
-    ctx->md_info->starts_func( ctx->md_ctx );
-    ctx->md_info->update_func( ctx->md_ctx, ipad, ctx->md_info->block_size );
-
-    return( 0 );
-}
-
-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 );
-
-    ctx->md_info->update_func( ctx->md_ctx, input, ilen );
-
-    return( 0 );
-}
-
-int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output )
-{
-    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;
-
-    ctx->md_info->finish_func( ctx->md_ctx, tmp );
-    ctx->md_info->starts_func( ctx->md_ctx );
-    ctx->md_info->update_func( ctx->md_ctx, opad, ctx->md_info->block_size );
-    ctx->md_info->update_func( ctx->md_ctx, tmp, ctx->md_info->size );
-    ctx->md_info->finish_func( ctx->md_ctx, output );
-
-    return( 0 );
-}
-
-int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx )
-{
-    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;
-
-    ctx->md_info->starts_func( ctx->md_ctx );
-    ctx->md_info->update_func( ctx->md_ctx, ipad, ctx->md_info->block_size );
-
-    return( 0 );
-}
-
-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;
-
-    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 )
-        return( ret );
-
-    mbedtls_md_hmac_starts( &ctx, key, keylen );
-    mbedtls_md_hmac_update( &ctx, input, ilen );
-    mbedtls_md_hmac_finish( &ctx, output );
-
-    mbedtls_md_free( &ctx );
-
-    return( 0 );
-}
-
-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 );
-
-    ctx->md_info->process_func( ctx->md_ctx, data );
-
-    return( 0 );
-}
-
-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 */