contrib/pgcrypto/sha2.h

   1 /*      $PostgreSQL$ */
   2 /*      $OpenBSD$       */
   3
   4 /*
   5  * FILE:        sha2.h
   6  * AUTHOR:      Aaron D. Gifford <me@aarongifford.com>
   7  *
   8  * Copyright (c) 2000-2001, Aaron D. Gifford
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *        notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *        notice, this list of conditions and the following disclaimer in the
  18  *        documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the copyright holder nor the names of contributors
  20  *        may be used to endorse or promote products derived from this software
  21  *        without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.      IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
  36  */
  37
  38 #ifndef _SHA2_H
  39 #define _SHA2_H
  40
  41 /* avoid conflict with OpenSSL */
  42 #define SHA256_Init pg_SHA256_Init
  43 #define SHA256_Update pg_SHA256_Update
  44 #define SHA256_Final pg_SHA256_Final
  45 #define SHA384_Init pg_SHA384_Init
  46 #define SHA384_Update pg_SHA384_Update
  47 #define SHA384_Final pg_SHA384_Final
  48 #define SHA512_Init pg_SHA512_Init
  49 #define SHA512_Update pg_SHA512_Update
  50 #define SHA512_Final pg_SHA512_Final
  51
  52 /*** SHA-224/256/384/512 Various Length Definitions ***********************/
  53 #define SHA224_BLOCK_LENGTH             64
  54 #define SHA224_DIGEST_LENGTH            28
  55 #define SHA224_DIGEST_STRING_LENGTH (SHA224_DIGEST_LENGTH * 2 + 1)
  56 #define SHA256_BLOCK_LENGTH             64
  57 #define SHA256_DIGEST_LENGTH            32
  58 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
  59 #define SHA384_BLOCK_LENGTH             128
  60 #define SHA384_DIGEST_LENGTH            48
  61 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
  62 #define SHA512_BLOCK_LENGTH             128
  63 #define SHA512_DIGEST_LENGTH            64
  64 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
  65
  66
  67 /*** SHA-256/384/512 Context Structures *******************************/
  68 typedef struct _SHA256_CTX
  69 {
  70         uint32          state[8];
  71         uint64          bitcount;
  72         uint8           buffer[SHA256_BLOCK_LENGTH];
  73 }       SHA256_CTX;
  74 typedef struct _SHA512_CTX
  75 {
  76         uint64          state[8];
  77         uint64          bitcount[2];
  78         uint8           buffer[SHA512_BLOCK_LENGTH];
  79 }       SHA512_CTX;
  80
  81 typedef SHA256_CTX SHA224_CTX;
  82 typedef SHA512_CTX SHA384_CTX;
  83
  84 void            SHA224_Init(SHA224_CTX *);
  85 void            SHA224_Update(SHA224_CTX *, const uint8 *, size_t);
  86 void            SHA224_Final(uint8[SHA224_DIGEST_LENGTH], SHA224_CTX *);
  87
  88 void            SHA256_Init(SHA256_CTX *);
  89 void            SHA256_Update(SHA256_CTX *, const uint8 *, size_t);
  90 void            SHA256_Final(uint8[SHA256_DIGEST_LENGTH], SHA256_CTX *);
  91
  92 void            SHA384_Init(SHA384_CTX *);
  93 void            SHA384_Update(SHA384_CTX *, const uint8 *, size_t);
  94 void            SHA384_Final(uint8[SHA384_DIGEST_LENGTH], SHA384_CTX *);
  95
  96 void            SHA512_Init(SHA512_CTX *);
  97 void            SHA512_Update(SHA512_CTX *, const uint8 *, size_t);
  98 void            SHA512_Final(uint8[SHA512_DIGEST_LENGTH], SHA512_CTX *);
  99
 100 #endif   /* _SHA2_H */