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/*
* FILE: sha2.h
* AUTHOR: Aaron D. Gifford - http://www.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.
*
* $OrigId: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
* $RoughId: sha2.h,v 1.3 2002/02/24 08:14:32 knu Exp $
* $Id: sha2.h 46827 2014-07-15 14:59:20Z nobu $
*/
#ifndef __SHA2_H__
#define __SHA2_H__
#ifdef __cplusplus
extern "C" {
#endif
/*
* Import u_intXX_t size_t type definitions from system headers. You
* may need to change this, or define these things yourself in this
* file.
*/
#include <sys/types.h>
#ifdef RUBY
# ifdef HAVE_PROTOTYPES
# undef NOPROTO
# else
# define NOPROTO
# endif /* HAVE_PROTOTYPES */
# ifndef BYTE_ORDER
# define LITTLE_ENDIAN 1234
# define BIG_ENDIAN 4321
# ifdef WORDS_BIGENDIAN
# define BYTE_ORDER BIG_ENDIAN
# else
# define BYTE_ORDER LITTLE_ENDIAN
# endif
# endif /* BYTE_ORDER */
# define SHA2_USE_INTTYPES_H
#else /* RUBY */
#ifdef SHA2_USE_INTTYPES_H
#include <inttypes.h>
#endif /* SHA2_USE_INTTYPES_H */
#endif /* RUBY */
/*** 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 *******************************/
/* NOTE: If your architecture does not define either u_intXX_t types or
* uintXX_t (from inttypes.h), you may need to define things by hand
* for your system:
*/
#ifndef SHA2_USE_INTTYPES_H
# ifdef HAVE_U_INT8_T
typedef u_int8_t uint8_t; /* 1-byte (8-bits) */
typedef u_int32_t uint32_t; /* 4-bytes (32-bits) */
typedef u_int64_t uint64_t; /* 8-bytes (64-bits) */
# else
typedef unsigned char uint8_t; /* 1-byte (8-bits) */
typedef unsigned int uint32_t; /* 4-bytes (32-bits) */
typedef unsigned long long uint64_t; /* 8-bytes (64-bits) */
# endif
#endif
/*
* Most BSD systems already define u_intXX_t types, as does Linux.
* Some systems, however, like Compaq's Tru64 Unix instead can use
* uintXX_t types defined by very recent ANSI C standards and included
* in the file:
*
* #include <inttypes.h>
*
* If you choose to use <inttypes.h> then please define:
*
* #define SHA2_USE_INTTYPES_H
*
* Or on the command line during compile:
*
* cc -DSHA2_USE_INTTYPES_H ...
*/
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;
/*** SHA-256/384/512 Function Prototypes ******************************/
#ifdef RUBY
#define SHA256_Init rb_Digest_SHA256_Init
#define SHA256_Update rb_Digest_SHA256_Update
#define SHA256_Finish rb_Digest_SHA256_Finish
#define SHA256_Data rb_Digest_SHA256_Data
#define SHA256_End rb_Digest_SHA256_End
#define SHA256_Last rb_Digest_SHA256_Last
#define SHA256_Transform rb_Digest_SHA256_Transform
#define SHA256_Final(d, c) SHA256_Finish(c, d)
#define SHA384_Init rb_Digest_SHA384_Init
#define SHA384_Update rb_Digest_SHA384_Update
#define SHA384_Finish rb_Digest_SHA384_Finish
#define SHA384_Data rb_Digest_SHA384_Data
#define SHA384_End rb_Digest_SHA384_End
#define SHA384_Last rb_Digest_SHA384_Last
#define SHA384_Transform rb_Digest_SHA384_Transform
#define SHA384_Final(d, c) SHA384_Finish(c, d)
#define SHA512_Init rb_Digest_SHA512_Init
#define SHA512_Update rb_Digest_SHA512_Update
#define SHA512_Finish rb_Digest_SHA512_Finish
#define SHA512_Data rb_Digest_SHA512_Data
#define SHA512_End rb_Digest_SHA512_End
#define SHA512_Last rb_Digest_SHA512_Last
#define SHA512_Transform rb_Digest_SHA512_Transform
#define SHA512_Final(d, c) SHA512_Finish(c, d)
#endif /* RUBY */
#ifndef NOPROTO
int SHA256_Init(SHA256_CTX *);
void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
int SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
int SHA384_Init(SHA384_CTX*);
void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
int SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
int SHA512_Init(SHA512_CTX*);
void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
int SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
#else /* NOPROTO */
int SHA256_Init();
void SHA256_Update();
#ifdef RUBY
int SHA256_Finish();
#else
int SHA256_Final();
#endif /* RUBY */
char* SHA256_End();
char* SHA256_Data();
int SHA384_Init();
void SHA384_Update();
#ifdef RUBY
int SHA384_Finish();
#else
int SHA384_Final();
#endif /* RUBY */
char* SHA384_End();
char* SHA384_Data();
int SHA512_Init();
void SHA512_Update();
#ifdef RUBY
int SHA512_Finish();
#else
int SHA512_Final();
#endif /* RUBY */
char* SHA512_End();
char* SHA512_Data();
#endif /* NOPROTO */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __SHA2_H__ */
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