contrib/pgcrypto/sha1.h

   1 /*      $PostgreSQL$ */
   2 /*         $KAME$    */
   3
   4 /*
   5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *        notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *        notice, this list of conditions and the following disclaimer in the
  15  *        documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the project nor the names of its contributors
  17  *        may be used to endorse or promote products derived from this software
  18  *        without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.      IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32 /*
  33  * FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
  34  * based on: http://csrc.nist.gov/fips/fip180-1.txt
  35  * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
  36  */
  37
  38 #ifndef _NETINET6_SHA1_H_
  39 #define _NETINET6_SHA1_H_
  40
  41 struct sha1_ctxt
  42 {
  43         union
  44         {
  45                 uint8           b8[20];
  46                 uint32          b32[5];
  47         }                       h;
  48         union
  49         {
  50                 uint8           b8[8];
  51                 uint64          b64[1];
  52         }                       c;
  53         union
  54         {
  55                 uint8           b8[64];
  56                 uint32          b32[16];
  57         }                       m;
  58         uint8           count;
  59 };
  60
  61 extern void sha1_init(struct sha1_ctxt *);
  62 extern void sha1_pad(struct sha1_ctxt *);
  63 extern void sha1_loop(struct sha1_ctxt *, const uint8 *, size_t);
  64 extern void sha1_result(struct sha1_ctxt *, uint8 *);
  65
  66 /* compatibilty with other SHA1 source codes */
  67 typedef struct sha1_ctxt SHA1_CTX;
  68
  69 #define SHA1Init(x)             sha1_init((x))
  70 #define SHA1Update(x, y, z) sha1_loop((x), (y), (z))
  71 #define SHA1Final(x, y)         sha1_result((y), (x))
  72
  73 #define SHA1_RESULTLEN  (160/8)
  74
  75 #endif   /* _NETINET6_SHA1_H_ */