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/* $FreeBSD$ */
/* $KAME: sha2.h,v 1.5 2007/06/14 12:09:41 itojun Exp $ */
/*
* sha2.h
*
* Version 1.0.0beta1
*
* Written by Aaron D. Gifford <me@aarongifford.com>
*
* Copyright 2000 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(S) 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(S) 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.
*
*/
#ifndef __SHA2_H__
#define __SHA2_H__
#ifdef __cplusplus
extern "C" {
#endif
/*** SHA-256/384/512 Various Length Definitions ***********************/
#define SHA256_BLOCK_LENGTH 64
#define SHA256_DIGEST_LENGTH 32
#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
#define SHA384_BLOCK_LENGTH 128
#define SHA384_DIGEST_LENGTH 48
#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
#define SHA512_BLOCK_LENGTH 128
#define SHA512_DIGEST_LENGTH 64
#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
/*** SHA-384/512 Context Structures *******************************/
typedef struct _SHA512_CTX {
uint64_t state[8];
uint64_t bitcount[2];
uint8_t buffer[SHA512_BLOCK_LENGTH];
} SHA512_CTX;
typedef SHA512_CTX SHA384_CTX;
/*** SHA-384/512 Function Prototypes ******************************/
void SHA384_Init(SHA384_CTX*);
void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
void SHA512_Init(SHA512_CTX*);
void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#include "sha256.h"
#endif /* __SHA2_H__ */
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