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dolphin/Externals/polarssl/library/md.c
Ryan Houdek a48e284317 Update external polarssl to 1.3.8 
There were some fixes back on March 13th, 2014 for fixing compiling on MIPS64.
Also some fixes on June 25th, 2014 for SPARC64 fixes.

Probably more things, but those are what I care about.
2014-09-08 02:21:18 -05:00

342 lines
8.2 KiB
C
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/**
* \file md.c
*
* \brief Generic message digest wrapper for PolarSSL
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright (C) 2006-2014, Brainspark B.V.
*
* This file is part of PolarSSL (http://www.polarssl.org)
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#if !defined(POLARSSL_CONFIG_FILE)
#include "polarssl/config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
#if defined(POLARSSL_MD_C)
#include "polarssl/md.h"
#include "polarssl/md_wrap.h"
#include <stdlib.h>
#if defined(_MSC_VER) && !defined strcasecmp && !defined(EFIX64) && \
!defined(EFI32)
#define strcasecmp _stricmp
#endif
/* Implementation that should never be optimized out by the compiler */
static void polarssl_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
static const int supported_digests[] = {
#if defined(POLARSSL_SHA512_C)
POLARSSL_MD_SHA384,
POLARSSL_MD_SHA512,
#endif
#if defined(POLARSSL_SHA256_C)
POLARSSL_MD_SHA224,
POLARSSL_MD_SHA256,
#endif
#if defined(POLARSSL_SHA1_C)
POLARSSL_MD_SHA1,
#endif
#if defined(POLARSSL_RIPEMD160_C)
POLARSSL_MD_RIPEMD160,
#endif
#if defined(POLARSSL_MD5_C)
POLARSSL_MD_MD5,
#endif
#if defined(POLARSSL_MD4_C)
POLARSSL_MD_MD4,
#endif
#if defined(POLARSSL_MD2_C)
POLARSSL_MD_MD2,
#endif
POLARSSL_MD_NONE
};
const int *md_list( void )
{
return( supported_digests );
}
const md_info_t *md_info_from_string( const char *md_name )
{
if( NULL == md_name )
return( NULL );
/* Get the appropriate digest information */
#if defined(POLARSSL_MD2_C)
if( !strcasecmp( "MD2", md_name ) )
return md_info_from_type( POLARSSL_MD_MD2 );
#endif
#if defined(POLARSSL_MD4_C)
if( !strcasecmp( "MD4", md_name ) )
return md_info_from_type( POLARSSL_MD_MD4 );
#endif
#if defined(POLARSSL_MD5_C)
if( !strcasecmp( "MD5", md_name ) )
return md_info_from_type( POLARSSL_MD_MD5 );
#endif
#if defined(POLARSSL_RIPEMD160_C)
if( !strcasecmp( "RIPEMD160", md_name ) )
return md_info_from_type( POLARSSL_MD_RIPEMD160 );
#endif
#if defined(POLARSSL_SHA1_C)
if( !strcasecmp( "SHA1", md_name ) || !strcasecmp( "SHA", md_name ) )
return md_info_from_type( POLARSSL_MD_SHA1 );
#endif
#if defined(POLARSSL_SHA256_C)
if( !strcasecmp( "SHA224", md_name ) )
return md_info_from_type( POLARSSL_MD_SHA224 );
if( !strcasecmp( "SHA256", md_name ) )
return md_info_from_type( POLARSSL_MD_SHA256 );
#endif
#if defined(POLARSSL_SHA512_C)
if( !strcasecmp( "SHA384", md_name ) )
return md_info_from_type( POLARSSL_MD_SHA384 );
if( !strcasecmp( "SHA512", md_name ) )
return md_info_from_type( POLARSSL_MD_SHA512 );
#endif
return( NULL );
}
const md_info_t *md_info_from_type( md_type_t md_type )
{
switch( md_type )
{
#if defined(POLARSSL_MD2_C)
case POLARSSL_MD_MD2:
return( &md2_info );
#endif
#if defined(POLARSSL_MD4_C)
case POLARSSL_MD_MD4:
return( &md4_info );
#endif
#if defined(POLARSSL_MD5_C)
case POLARSSL_MD_MD5:
return( &md5_info );
#endif
#if defined(POLARSSL_RIPEMD160_C)
case POLARSSL_MD_RIPEMD160:
return( &ripemd160_info );
#endif
#if defined(POLARSSL_SHA1_C)
case POLARSSL_MD_SHA1:
return( &sha1_info );
#endif
#if defined(POLARSSL_SHA256_C)
case POLARSSL_MD_SHA224:
return( &sha224_info );
case POLARSSL_MD_SHA256:
return( &sha256_info );
#endif
#if defined(POLARSSL_SHA512_C)
case POLARSSL_MD_SHA384:
return( &sha384_info );
case POLARSSL_MD_SHA512:
return( &sha512_info );
#endif
default:
return( NULL );
}
}
void md_init( md_context_t *ctx )
{
memset( ctx, 0, sizeof( md_context_t ) );
}
void md_free( md_context_t *ctx )
{
if( ctx == NULL )
return;
if( ctx->md_ctx )
ctx->md_info->ctx_free_func( ctx->md_ctx );
polarssl_zeroize( ctx, sizeof( md_context_t ) );
}
int md_init_ctx( md_context_t *ctx, const md_info_t *md_info )
{
if( md_info == NULL || ctx == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
memset( ctx, 0, sizeof( md_context_t ) );
if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )
return( POLARSSL_ERR_MD_ALLOC_FAILED );
ctx->md_info = md_info;
md_info->starts_func( ctx->md_ctx );
return( 0 );
}
int md_free_ctx( md_context_t *ctx )
{
md_free( ctx );
return( 0 );
}
int md_starts( md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->starts_func( ctx->md_ctx );
return( 0 );
}
int md_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->update_func( ctx->md_ctx, input, ilen );
return( 0 );
}
int md_finish( md_context_t *ctx, unsigned char *output )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->finish_func( ctx->md_ctx, output );
return( 0 );
}
int md( const md_info_t *md_info, const unsigned char *input, size_t ilen,
unsigned char *output )
{
if( md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
md_info->digest_func( input, ilen, output );
return( 0 );
}
int md_file( const md_info_t *md_info, const char *path, unsigned char *output )
{
#if defined(POLARSSL_FS_IO)
int ret;
#endif
if( md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
#if defined(POLARSSL_FS_IO)
ret = md_info->file_func( path, output );
if( ret != 0 )
return( POLARSSL_ERR_MD_FILE_IO_ERROR + ret );
return( ret );
#else
((void) path);
((void) output);
return( POLARSSL_ERR_MD_FEATURE_UNAVAILABLE );
#endif /* POLARSSL_FS_IO */
}
int md_hmac_starts( md_context_t *ctx, const unsigned char *key, size_t keylen )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->hmac_starts_func( ctx->md_ctx, key, keylen );
return( 0 );
}
int md_hmac_update( md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->hmac_update_func( ctx->md_ctx, input, ilen );
return( 0 );
}
int md_hmac_finish( md_context_t *ctx, unsigned char *output )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->hmac_finish_func( ctx->md_ctx, output );
return( 0 );
}
int md_hmac_reset( md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->hmac_reset_func( ctx->md_ctx );
return( 0 );
}
int md_hmac( const md_info_t *md_info, const unsigned char *key, size_t keylen,
const unsigned char *input, size_t ilen,
unsigned char *output )
{
if( md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
md_info->hmac_func( key, keylen, input, ilen, output );
return( 0 );
}
int md_process( md_context_t *ctx, const unsigned char *data )
{
if( ctx == NULL || ctx->md_info == NULL )
return( POLARSSL_ERR_MD_BAD_INPUT_DATA );
ctx->md_info->process_func( ctx->md_ctx, data );
return( 0 );
}
#endif /* POLARSSL_MD_C */
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