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/*
* 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.
*
*/
/* $RoughId: sha2.h,v 1.3 2002/02/24 08:14:32 knu Exp $ */
/* $Id$ */
#ifndef __SHA2_H__
#define __SHA2_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "defs.h"
/*** 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-256/384/512 Context Structures *******************************/
typedef struct _SHA256_CTX {
uint32_t state[8];
uint64_t bitcount;
uint8_t buffer[SHA256_BLOCK_LENGTH];
} SHA256_CTX;
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;
#ifdef RUBY
#define SHA256_Init rb_Digest_SHA256_Init
#define SHA256_Update rb_Digest_SHA256_Update
#define SHA256_Finish rb_Digest_SHA256_Finish
#define SHA384_Init rb_Digest_SHA384_Init
#define SHA384_Update rb_Digest_SHA384_Update
#define SHA384_Finish rb_Digest_SHA384_Finish
#define SHA512_Init rb_Digest_SHA512_Init
#define SHA512_Update rb_Digest_SHA512_Update
#define SHA512_Finish rb_Digest_SHA512_Finish
#endif
/*** SHA-256/384/512 Function Prototypes ******************************/
void SHA256_Init _((SHA256_CTX *));
void SHA256_Update _((SHA256_CTX*, const uint8_t*, size_t));
void SHA256_Finish _((SHA256_CTX*, uint8_t[SHA256_DIGEST_LENGTH]));
void SHA384_Init _((SHA384_CTX*));
void SHA384_Update _((SHA384_CTX*, const uint8_t*, size_t));
void SHA384_Finish _((SHA384_CTX*, uint8_t[SHA384_DIGEST_LENGTH]));
void SHA512_Init _((SHA512_CTX*));
void SHA512_Update _((SHA512_CTX*, const uint8_t*, size_t));
void SHA512_Finish _((SHA512_CTX*, uint8_t[SHA512_DIGEST_LENGTH]));
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __SHA2_H__ */
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