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/* gosthash94.h
*
* The GOST R 34.11-94 hash function, described in RFC 5831.
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2012 Nikos Mavrogiannopoulos, Niels Möller
*
* The nettle library 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.
*
* The nettle library 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 the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02111-1301, USA.
*/
/* Interface based on rhash gost.h. */
/* Copyright: 2009-2012 Aleksey Kravchenko <rhash.admin@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Ported to nettle by Nikos Mavrogiannopoulos.
*/
#ifndef NETTLE_GOSTHASH94_H_INCLUDED
#define NETTLE_GOSTHASH94_H_INCLUDED
#include "nettle-types.h"
#ifdef __cplusplus
extern "C" {
#endif
#define gosthash94_init nettle_gosthash94_init
#define gosthash94_update nettle_gosthash94_update
#define gosthash94_digest nettle_gosthash94_digest
#define GOSTHASH94_DATA_SIZE 32
#define GOSTHASH94_DIGEST_SIZE 32
struct gosthash94_ctx
{
uint32_t hash[8]; /* algorithm 256-bit state */
uint32_t sum[8]; /* sum of processed message blocks */
uint8_t message[GOSTHASH94_DATA_SIZE]; /* 256-bit buffer for leftovers */
uint64_t length; /* number of processed bytes */
};
void gosthash94_init(struct gosthash94_ctx *ctx);
void gosthash94_update(struct gosthash94_ctx *ctx,
unsigned length, const uint8_t *msg);
void gosthash94_digest(struct gosthash94_ctx *ctx,
unsigned length, uint8_t *result);
#ifdef __cplusplus
}
#endif
#endif /* NETTLE_GOSTHASH94_H_INCLUDED */
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