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/* sha256.h
*
* Copyright (C) 2006-2011 Sawtooth Consulting Ltd.
*
* This file is part of CyaSSL.
*
* CyaSSL 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.
*
* CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/* code submitted by raphael.huck@efixo.com */
#ifndef NO_SHA256
#ifndef CTAO_CRYPT_SHA256_H
#define CTAO_CRYPT_SHA256_H
#include "types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* in bytes */
enum {
SHA256 = 2, /* hash type unique */
SHA256_BLOCK_SIZE = 64,
SHA256_DIGEST_SIZE = 32,
SHA256_PAD_SIZE = 56
};
/* Sha256 digest */
typedef struct Sha256 {
word32 buffLen; /* in bytes */
word32 loLen; /* length in bytes */
word32 hiLen; /* length in bytes */
word32 digest[SHA256_DIGEST_SIZE / sizeof(word32)];
word32 buffer[SHA256_BLOCK_SIZE / sizeof(word32)];
} Sha256;
void InitSha256(Sha256*);
void Sha256Update(Sha256*, const byte*, word32);
void Sha256Final(Sha256*, byte*);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* CTAO_CRYPT_SHA256_H */
#endif /* NO_SHA256 */
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