lgl/hmac.h

   1 /* hmac.h -- hashed message authentication codes
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 2.1, or (at your option)
   7    any later version.
   8
   9    This program 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
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  17
  18 /* Written by Simon Josefsson.  */
  19
  20 #ifndef HMAC_H
  21 # define HMAC_H 1
  22
  23 #include <stddef.h>
  24
  25 /* Compute Hashed Message Authentication Code with MD5, as described
  26    in RFC 2104, over BUFFER data of BUFLEN bytes using the KEY of
  27    KEYLEN bytes, writing the output to pre-allocated 16 byte minimum
  28    RESBUF buffer.  Return 0 on success.  */
  29 int
  30 hmac_md5 (const void *key, size_t keylen,
  31           const void *buffer, size_t buflen, void *resbuf);
  32
  33 /* Compute Hashed Message Authentication Code with SHA-1, over BUFFER
  34    data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
  35    output to pre-allocated 20 byte minimum RESBUF buffer.  Return 0 on
  36    success.  */
  37 int
  38 hmac_sha1 (const void *key, size_t keylen,
  39            const void *in, size_t inlen, void *resbuf);
  40
  41 #endif /* HMAC_H */