release/src/router/nettle/gosthash94.h

   1 /* gosthash94.h
   2  *
   3  * The GOST R 34.11-94 hash function, described in RFC 5831.
   4  */
   5
   6 /* nettle, low-level cryptographics library
   7  *
   8  * Copyright (C) 2012 Nikos Mavrogiannopoulos, Niels Möller
   9  *
  10  * The nettle library is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 of the License, or (at your
  13  * option) any later version.
  14  *
  15  * The nettle library is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  17  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  18  * License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with the nettle library; see the file COPYING.LIB.  If not, write to
  22  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  23  * MA 02111-1301, USA.
  24  */
  25
  26 /* Interface based on rhash gost.h. */
  27
  28 /* Copyright: 2009-2012 Aleksey Kravchenko <rhash.admin@gmail.com>
  29  *
  30  * Permission is hereby granted, free of charge, to any person obtaining a
  31  * copy of this software and associated documentation files (the
  32  * "Software"), to deal in the Software without restriction, including
  33  * without limitation the rights to use, copy, modify, merge, publish,
  34  * distribute, sublicense, and/or sell copies of the Software, and to
  35  * permit persons to whom the Software is furnished to do so, subject to
  36  * the following conditions:
  37  *
  38  * The above copyright notice and this permission notice shall be included
  39  * in all copies or substantial portions of the Software.
  40  *
  41  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  42  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  43  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  44  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  45  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  46  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  47  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  48  */
  49
  50 /*
  51  * Ported to nettle by Nikos Mavrogiannopoulos.
  52  */
  53
  54 #ifndef NETTLE_GOSTHASH94_H_INCLUDED
  55 #define NETTLE_GOSTHASH94_H_INCLUDED
  56
  57 #include "nettle-types.h"
  58
  59 #ifdef __cplusplus
  60 extern "C" {
  61 #endif
  62
  63 #define gosthash94_init nettle_gosthash94_init
  64 #define gosthash94_update nettle_gosthash94_update
  65 #define gosthash94_digest nettle_gosthash94_digest
  66
  67 #define GOSTHASH94_DATA_SIZE 32
  68 #define GOSTHASH94_DIGEST_SIZE 32
  69
  70 struct gosthash94_ctx
  71 {
  72   uint32_t hash[8]; /* algorithm 256-bit state */
  73   uint32_t sum[8];  /* sum of processed message blocks */
  74   uint8_t message[GOSTHASH94_DATA_SIZE]; /* 256-bit buffer for leftovers */
  75   uint64_t length;  /* number of processed bytes */
  76 };
  77
  78 void gosthash94_init(struct gosthash94_ctx *ctx);
  79 void gosthash94_update(struct gosthash94_ctx *ctx,
  80                        unsigned length, const uint8_t *msg);
  81 void gosthash94_digest(struct gosthash94_ctx *ctx,
  82                        unsigned length, uint8_t *result);
  83
  84 #ifdef __cplusplus
  85 }
  86 #endif
  87
  88 #endif /* NETTLE_GOSTHASH94_H_INCLUDED */