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/* $NetBSD: sha2.h,v 1.2 2015/08/17 11:37:55 jperkin Exp $ */
/* $KAME: sha2.h,v 1.4 2003/07/20 00:28:38 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__
#include <sys/types.h>
/*** SHA-224/256/384/512 Various Length Definitions ***********************/
#define SHA224_BLOCK_LENGTH 64
#define SHA224_DIGEST_LENGTH 28
#define SHA224_DIGEST_STRING_LENGTH (SHA224_DIGEST_LENGTH * 2 + 1)
#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)
#ifndef __BEGIN_DECLS
# if defined(__cplusplus)
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
# else
# define __BEGIN_DECLS
# define __END_DECLS
# endif
#endif
/*** 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 SHA256_CTX SHA224_CTX;
typedef SHA512_CTX SHA384_CTX;
/*** SHA-256/384/512 Function Prototypes ******************************/
__BEGIN_DECLS
int SHA224_Init(SHA224_CTX *);
int SHA224_Update(SHA224_CTX*, const uint8_t*, size_t);
int SHA224_Final(uint8_t[SHA224_DIGEST_LENGTH], SHA224_CTX*);
#ifndef _KERNEL
char *SHA224_End(SHA224_CTX *, char[SHA224_DIGEST_STRING_LENGTH]);
char *SHA224_FileChunk(const char *, char *, off_t, off_t);
char *SHA224_File(const char *, char *);
char *SHA224_Data(const uint8_t *, size_t, char[SHA224_DIGEST_STRING_LENGTH]);
#endif /* !_KERNEL */
int SHA256_Init(SHA256_CTX *);
int SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
int SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
#ifndef _KERNEL
char *SHA256_End(SHA256_CTX *, char[SHA256_DIGEST_STRING_LENGTH]);
char *SHA256_FileChunk(const char *, char *, off_t, off_t);
char *SHA256_File(const char *, char *);
char *SHA256_Data(const uint8_t *, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
#endif /* !_KERNEL */
int SHA384_Init(SHA384_CTX*);
int SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
int SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
#ifndef _KERNEL
char *SHA384_End(SHA384_CTX *, char[SHA384_DIGEST_STRING_LENGTH]);
char *SHA384_FileChunk(const char *, char *, off_t, off_t);
char *SHA384_File(const char *, char *);
char *SHA384_Data(const uint8_t *, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
#endif /* !_KERNEL */
int SHA512_Init(SHA512_CTX*);
int SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
int SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
#ifndef _KERNEL
char *SHA512_End(SHA512_CTX *, char[SHA512_DIGEST_STRING_LENGTH]);
char *SHA512_FileChunk(const char *, char *, off_t, off_t);
char *SHA512_File(const char *, char *);
char *SHA512_Data(const uint8_t *, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
#endif /* !_KERNEL */
__END_DECLS
#endif /* __SHA2_H__ */
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