utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/hmacsha1.c

   1 /*
   2  * Copyright (c) 1999, 2000, 2001, 2002 Virtual Unlimited B.V.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  */
  19
  20 /*!\file hmacsha1.c
  21  * \brief HMAC-SHA-1 message authentication code.
  22  *
  23  * \see RFC2202 - Test Cases for HMAC-MD5 and HMAC-SHA-1.
  24  *                P. Cheng, R. Glenn.
  25  *
  26  * \author Bob Deblier <bob.deblier@pandora.be>
  27  * \ingroup HMAC_m HMAC_sha1_m
  28  */
  29
  30 #define BEECRYPT_DLL_EXPORT
  31
  32 #if HAVE_CONFIG_H
  33 # include "config.h"
  34 #endif
  35
  36 #include "beecrypt/hmacsha1.h"
  37
  38 /*!\addtogroup HMAC_sha1_m
  39  * \{
  40  */
  41
  42 const keyedHashFunction hmacsha1 = {
  43         "HMAC-SHA-1",
  44         sizeof(hmacsha1Param),
  45         64,
  46         20,
  47         64,
  48         512,
  49         32,
  50         (keyedHashFunctionSetup) hmacsha1Setup,
  51         (keyedHashFunctionReset) hmacsha1Reset,
  52         (keyedHashFunctionUpdate) hmacsha1Update,
  53         (keyedHashFunctionDigest) hmacsha1Digest
  54 };
  55
  56 int hmacsha1Setup (hmacsha1Param* sp, const byte* key, size_t keybits)
  57 {
  58         return hmacSetup(sp->kxi, sp->kxo, &sha1, &sp->sparam, key, keybits);
  59 }
  60
  61 int hmacsha1Reset (hmacsha1Param* sp)
  62 {
  63         return hmacReset(sp->kxi, &sha1, &sp->sparam);
  64 }
  65
  66 int hmacsha1Update(hmacsha1Param* sp, const byte* data, size_t size)
  67 {
  68         return hmacUpdate(&sha1, &sp->sparam, data, size);
  69 }
  70
  71 int hmacsha1Digest(hmacsha1Param* sp, byte* data)
  72 {
  73         return hmacDigest(sp->kxo, &sha1, &sp->sparam, data);
  74 }
  75
  76 /*!\}
  77  */