release/src/router/nettle/md4.h

   1 /* md4.h
   2  *
   3  * The MD4 hash function, described in RFC 1320.
   4  */
   5
   6 /* nettle, low-level cryptographics library
   7  *
   8  * Copyright (C) 2003 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 #ifndef NETTLE_MD4_H_INCLUDED
  27 #define NETTLE_MD4_H_INCLUDED
  28
  29 #include "nettle-types.h"
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /* Name mangling */
  36 #define md4_init nettle_md4_init
  37 #define md4_update nettle_md4_update
  38 #define md4_digest nettle_md4_digest
  39
  40 #define MD4_DIGEST_SIZE 16
  41 #define MD4_DATA_SIZE 64
  42
  43 /* Digest is kept internally as 4 32-bit words. */
  44 #define _MD4_DIGEST_LENGTH 4
  45
  46 /* FIXME: Identical to md5_ctx */
  47 struct md4_ctx
  48 {
  49   uint32_t state[_MD4_DIGEST_LENGTH];
  50   uint32_t count_low, count_high;       /* Block count */
  51   uint8_t block[MD4_DATA_SIZE];         /* Block buffer */
  52   unsigned index;                       /* Into buffer */
  53 };
  54
  55 void
  56 md4_init(struct md4_ctx *ctx);
  57
  58 void
  59 md4_update(struct md4_ctx *ctx,
  60            unsigned length,
  61            const uint8_t *data);
  62
  63 void
  64 md4_digest(struct md4_ctx *ctx,
  65            unsigned length,
  66            uint8_t *digest);
  67
  68
  69 #ifdef __cplusplus
  70 }
  71 #endif
  72
  73 #endif /* NETTLE_MD4_H_INCLUDED */