blob: 3fa9ffa85eff0f93a615de81f6409034db93e5ca [file] [log] [blame]
/* contrib/pgcrypto/sha2.h */
/* $OpenBSD: sha2.h,v 1.2 2004/04/28 23:11:57 millert Exp $ */
/*
* FILE: sha2.h
* AUTHOR: Aaron D. Gifford <me@aarongifford.com>
*
* Copyright (c) 2000-2001, Aaron D. Gifford
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
*/
/*** SHA-224/256/384/512 Various Length Definitions ***********************/
enum {
SHA224BlockLength = 64,
SHA224DigestLength = 28,
SHA224_digest_string_length = (SHA224DigestLength * 2 + 1),
SHA256BlockLength = 64,
SHA256DigestLength = 32,
SHA256DigestStringLength = (SHA256DigestLength * 2 + 1),
SHA384BlockLength = 128,
SHA384DigestLength = 48,
SHA384_digest_string_length = (SHA384DigestLength * 2 + 1),
SHA512_block_length = 128,
SHA512DigestLength = 64,
SHA512DigestStringLength = (SHA512DigestLength * 2 + 1)
};
/*** SHA-256/384/512 Context Structures *******************************/
typedef struct SHA256Ctx SHA256Ctx;
typedef struct SHA512Ctx SHA512Ctx;
typedef SHA256Ctx SHA224Ctx;
typedef SHA512Ctx SHA384Ctx;
struct SHA256Ctx {
uint32_t state[8];
uint64_t bitcount;
uint8_t buffer[SHA256BlockLength];
};
struct SHA512Ctx {
uint64_t state[8];
uint64_t bitcount[2];
uint8_t buffer[SHA512_block_length];
};
void SHA224_Init(SHA224Ctx *);
void SHA224_Update(SHA224Ctx *, const uint8_t *, size_t);
void SHA224_Final(uint8_t[SHA224DigestLength], SHA224Ctx *);
void SHA256_Init(SHA256Ctx *);
void SHA256_Update(SHA256Ctx *, const uint8_t *, size_t);
void SHA256_Final(uint8_t[SHA256DigestLength], SHA256Ctx *);
void SHA384_Init(SHA384Ctx *);
void SHA384_Update(SHA384Ctx *, const uint8_t *, size_t);
void SHA384_Final(uint8_t[SHA384DigestLength], SHA384Ctx *);
void SHA512_Init(SHA512Ctx *);
void SHA512_Update(SHA512Ctx *, const uint8_t *, size_t);
void SHA512_Final(uint8_t[SHA512DigestLength], SHA512Ctx *);