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/* hash-common.h - Declarations of common code for hash algorithms.
* Copyright (C) 2008 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GCRY_HASH_COMMON_H
#define GCRY_HASH_COMMON_H
#include "types.h"
const char * _gcry_hash_selftest_check_one
/**/ (int algo,
int datamode, const void *data, size_t datalen,
const void *expect, size_t expectlen);
/* Type for the md_write helper function. */
typedef unsigned int (*_gcry_md_block_write_t) (void *c,
const unsigned char *blks,
size_t nblks);
#if (defined(USE_SHA512) || defined(USE_WHIRLPOOL))
/* SHA-512 and Whirlpool needs u64. SHA-512 needs larger buffer. */
# define MD_BLOCK_MAX_BLOCKSIZE 128
# define MD_NBLOCKS_TYPE u64
#else
# define MD_BLOCK_MAX_BLOCKSIZE 64
# define MD_NBLOCKS_TYPE u32
#endif
/* SHA1 needs 2x64 bytes and SHA-512 needs 128 bytes. */
#define MD_BLOCK_CTX_BUFFER_SIZE 128
typedef struct gcry_md_block_ctx
{
byte buf[MD_BLOCK_CTX_BUFFER_SIZE];
MD_NBLOCKS_TYPE nblocks;
MD_NBLOCKS_TYPE nblocks_high;
int count;
unsigned int blocksize_shift;
_gcry_md_block_write_t bwrite;
} gcry_md_block_ctx_t;
void
_gcry_md_block_write( void *context, const void *inbuf_arg, size_t inlen);
#endif /*GCRY_HASH_COMMON_H*/
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