1 /* contrib/pgcrypto/sha2.h */
2 /* $OpenBSD: sha2.h,v 1.2 2004/04/28 23:11:57 millert Exp $ */
6 * AUTHOR: Aaron D. Gifford <me@aarongifford.com>
8 * Copyright (c) 2000-2001, Aaron D. Gifford
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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
35 * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
38 /*** SHA-224/256/384/512 Various Length Definitions ***********************/
40 SHA224BlockLength = 64,
41 SHA224DigestLength = 28,
42 SHA224_digest_string_length = (SHA224DigestLength * 2 + 1),
43 SHA256BlockLength = 64,
44 SHA256DigestLength = 32,
45 SHA256DigestStringLength = (SHA256DigestLength * 2 + 1),
46 SHA384BlockLength = 128,
47 SHA384DigestLength = 48,
48 SHA384_digest_string_length = (SHA384DigestLength * 2 + 1),
49 SHA512_block_length = 128,
50 SHA512DigestLength = 64,
51 SHA512DigestStringLength = (SHA512DigestLength * 2 + 1)
54 /*** SHA-256/384/512 Context Structures *******************************/
56 typedef struct SHA256Ctx SHA256Ctx;
57 typedef struct SHA512Ctx SHA512Ctx;
58 typedef SHA256Ctx SHA224Ctx;
59 typedef SHA512Ctx SHA384Ctx;
64 uint8_t buffer[SHA256BlockLength];
70 uint8_t buffer[SHA512_block_length];
73 void SHA224_Init(SHA224Ctx *);
74 void SHA224_Update(SHA224Ctx *, const uint8_t *, size_t);
75 void SHA224_Final(uint8_t[SHA224DigestLength], SHA224Ctx *);
77 void SHA256_Init(SHA256Ctx *);
78 void SHA256_Update(SHA256Ctx *, const uint8_t *, size_t);
79 void SHA256_Final(uint8_t[SHA256DigestLength], SHA256Ctx *);
81 void SHA384_Init(SHA384Ctx *);
82 void SHA384_Update(SHA384Ctx *, const uint8_t *, size_t);
83 void SHA384_Final(uint8_t[SHA384DigestLength], SHA384Ctx *);
85 void SHA512_Init(SHA512Ctx *);
86 void SHA512_Update(SHA512Ctx *, const uint8_t *, size_t);
87 void SHA512_Final(uint8_t[SHA512DigestLength], SHA512Ctx *);