sha2.h

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/*      $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.1.2.1 2001/07/03 11:01:36 ume Exp $    */
/*      $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 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)

#ifdef __minix
#include <assert.h>
#include <string.h>
#include <sys/types.h>
#include <minix/u64.h>

typedef u8_t u_int8_t;  /* 1-byte  (8-bits)  */
typedef u32_t u_int32_t;        /* 4-bytes (32-bits) */
typedef u64_t u_int64_t;        /* 8-bytes (64-bits) */

#ifndef __P
#define __P(x) x
#endif

#define NO_64BIT        1
#define MINIX_64BIT     1

#define SHA2_BYTE_ORDER         0x04030201
#define SHA2_LITTLE_ENDIAN      0x04030201
#define SHA2_BIG_ENDIAN         0x01020204
#define bcopy(s,d,l)    (memmove((d),(s),(l)))
#define bzero(d,l)      (memset((d),'\0',(l)))
#endif

/*** 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:
 */
#if 0
typedef unsigned char u_int8_t;         /* 1-byte  (8-bits)  */
typedef unsigned int u_int32_t;         /* 4-bytes (32-bits) */
typedef unsigned long long u_int64_t;   /* 8-bytes (64-bits) */
#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 ...
 */
#if 0 /*def SHA2_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;

#else /* SHA2_USE_INTTYPES_H */

typedef struct _SHA256_CTX {
        u_int32_t       state[8];
        u_int64_t       bitcount;
        u_int8_t        buffer[SHA256_BLOCK_LENGTH];
} SHA256_CTX;
typedef struct _SHA512_CTX {
        u_int64_t       state[8];
        u_int64_t       bitcount[2];
        u_int8_t        buffer[SHA512_BLOCK_LENGTH];
} SHA512_CTX;

#endif /* SHA2_USE_INTTYPES_H */

typedef SHA512_CTX SHA384_CTX;

/*** SHA-256/384/512 Function Prototypes ******************************/

void SHA256_Init __P((SHA256_CTX *));
void SHA256_Update __P((SHA256_CTX*, const u_int8_t*, size_t));
void SHA256_Final __P((u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*));
char* SHA256_End __P((SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]));
char* SHA256_Data __P((const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]));

void SHA384_Init __P((SHA384_CTX*));
void SHA384_Update __P((SHA384_CTX*, const u_int8_t*, size_t));
void SHA384_Final __P((u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*));
char* SHA384_End __P((SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]));
char* SHA384_Data __P((const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]));

void SHA512_Init __P((SHA512_CTX*));
void SHA512_Update __P((SHA512_CTX*, const u_int8_t*, size_t));
void SHA512_Final __P((u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*));
char* SHA512_End __P((SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]));
char* SHA512_Data __P((const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]));

#ifdef  __cplusplus
}
#endif /* __cplusplus */

#endif /* __SHA2_H__ */

/*
 * $PchId: sha2.h,v 1.1 2005/06/28 14:29:33 philip Exp $
 */

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