wsutil/sha1.h

   1 /*
   2  *  FIPS-180-1 compliant SHA-1 implementation
   3  *
   4  *  $Id$
   5  *
   6  *  Copyright (C) 2001-2003  Christophe Devine
   7  *  Copyright (C) 2012       Chris Elston, Katalix Systems Ltd <celston@katalix.com>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  *
  23  *  Changed to use guint instead of uint 2004 by Anders Broman
  24  *      Original code found at http://www.cr0.net:8040/code/crypto/sha1/
  25  *  References: http://www.ietf.org/rfc/rfc3174.txt?number=3174
  26  *
  27  *  2012-08-21 - C Elston - Split sha1_hmac function to allow incremental usage.
  28  */
  29
  30 #ifndef _SHA1_H
  31 #define _SHA1_H
  32
  33 #include "ws_symbol_export.h"
  34
  35 typedef struct
  36 {
  37     guint32 total[2];
  38     guint32 state[5];
  39     guint8 buffer[64];
  40 }
  41 sha1_context;
  42
  43 WS_DLL_PUBLIC
  44 void sha1_starts( sha1_context *ctx );
  45 WS_DLL_PUBLIC
  46 void sha1_update( sha1_context *ctx, const guint8 *input, guint32 length );
  47 WS_DLL_PUBLIC
  48 void sha1_finish( sha1_context *ctx, guint8 digest[20] );
  49
  50 typedef struct {
  51     sha1_context ctx;
  52     guint8 k_opad[64];
  53 }
  54 sha1_hmac_context;
  55
  56 WS_DLL_PUBLIC
  57 void sha1_hmac_starts( sha1_hmac_context *hctx, const guint8 *key, guint32 keylen );
  58 WS_DLL_PUBLIC
  59 void sha1_hmac_update( sha1_hmac_context *hctx, const guint8 *buf, guint32 buflen );
  60 WS_DLL_PUBLIC
  61 void sha1_hmac_finish( sha1_hmac_context *hctx, guint8 digest[20] );
  62 WS_DLL_PUBLIC
  63 void sha1_hmac( const guint8 *key, guint32 keylen, const guint8 *buf, guint32 buflen,
  64                 guint8 digest[20] );
  65
  66 #endif /* sha1.h */