sha2.h

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// SPDX-FileCopyrightText: 2000-2001, Aaron D. Gifford
// SPDX-License-Identifier: BSD-3-Clause
 
/*
 * FILE:    sha2.h
 * AUTHOR:  Aaron D. Gifford <me@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.
 *
 */
 
#ifndef __SHA2_H__
#define __SHA2_H__
#include <rz_types.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 SHA2_USE_INTTYPES_H
 
#include <inttypes.h>
 
#endif /* SHA2_USE_INTTYPES_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 *******************************/
/* 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 u_int8_t
#define u_int8_t  unsigned char
#define u_int32_t unsigned int
#define u_int64_t unsigned long long
#endif
/*
 * Most BSD systems already define u_intXX_t types, as does Linux.
 * Some systems, however, like Compaq's Trut64 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 ...
 */
 
#define SHA256_BLOCK_LENGTH 64
typedef struct _SHA256_CTX {
    ut32 state[8];
    ut64 bitcount;
    ut8 buffer[SHA256_BLOCK_LENGTH];
} RZ_SHA256_CTX;
 
#define SHA384_BLOCK_LENGTH 128
#define SHA512_BLOCK_LENGTH 128
typedef struct _SHA512_CTX {
    ut64 state[8];
    ut64 bitcount[2];
    ut8 buffer[SHA512_BLOCK_LENGTH];
} RZ_SHA512_CTX;
typedef RZ_SHA512_CTX RZ_SHA384_CTX;
 
/*** SHA-256/384/512 Function Prototypes ******************************/
#ifndef NOPROTO
#ifdef SHA2_USE_INTTYPES_H
 
void SHA256_Init(RZ_SHA256_CTX *);
void SHA256_Update(RZ_SHA256_CTX *, const uint8_t *, size_t);
void SHA256_Final(uint8_t *, RZ_SHA256_CTX *);
char *SHA256_End(RZ_SHA256_CTX *, char *);
char *SHA256_Data(const uint8_t *, size_t, char *);
 
void SHA384_Init(RZ_SHA384_CTX *);
void SHA384_Update(RZ_SHA384_CTX *, const uint8_t *, size_t);
void SHA384_Final(uint8_t *, RZ_SHA384_CTX *);
char *SHA384_End(RZ_SHA384_CTX *, char *);
char *SHA384_Data(const uint8_t *, size_t, char *);
 
void SHA512_Init(RZ_SHA512_CTX *);
void SHA512_Update(RZ_SHA512_CTX *, const uint8_t *, size_t);
void SHA512_Final(uint8_t *, RZ_SHA512_CTX *);
char *SHA512_End(RZ_SHA512_CTX *, char *);
char *SHA512_Data(const uint8_t *, size_t, char *);
 
#else /* SHA2_USE_INTTYPES_H */
 
void SHA256_Init(RZ_SHA256_CTX *);
void SHA256_Update(RZ_SHA256_CTX *, const u_int8_t *, size_t);
void SHA256_Final(u_int8_t *, RZ_SHA256_CTX *);
char *SHA256_End(RZ_SHA256_CTX *, char *);
char *SHA256_Data(const u_int8_t *, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
 
void SHA384_Init(RZ_SHA384_CTX *);
void SHA384_Update(RZ_SHA384_CTX *, const u_int8_t *, size_t);
void SHA384_Final(u_int8_t *, RZ_SHA384_CTX *);
char *SHA384_End(RZ_SHA384_CTX *, char *);
char *SHA384_Data(const u_int8_t *, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
 
void SHA512_Init(RZ_SHA512_CTX *);
void SHA512_Update(RZ_SHA512_CTX *, const u_int8_t *, size_t);
void SHA512_Final(u_int8_t *, RZ_SHA512_CTX *);
char *SHA512_End(RZ_SHA512_CTX *, char *);
char *SHA512_Data(const u_int8_t *, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
 
#endif /* SHA2_USE_INTTYPES_H */
 
#else /* NOPROTO */
 
void SHA256_Init(void);
void SHA256_Update(void);
void SHA256_Final(void);
char *SHA256_End(void);
char *SHA256_Data(void);
 
void SHA384_Init(void);
void SHA384_Update(void);
void SHA384_Final(void);
char *SHA384_End(void);
char *SHA384_Data(void);
 
void SHA512_Init(void);
void SHA512_Update(void);
void SHA512_Final(void);
char *SHA512_End(void);
char *SHA512_Data(void);
 
#endif /* NOPROTO */
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* __SHA2_H__ */