[openssh.git] / openbsd-compat / sha2.h

/*	$OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp $	*/

/*
 * 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.
 *
 * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
 */

/* OPENBSD ORIGINAL: include/sha2.h */

#ifndef _SHA2_H
#define _SHA2_H

#include "includes.h"

#if !defined(HAVE_SHA256_UPDATE) && !defined(HAVE_EVP_SHA256)

/*** 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 {
	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;

typedef SHA512_CTX SHA384_CTX;

void SHA256_Init(SHA256_CTX *);
void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t)
	__attribute__((__bounded__(__string__,2,3)));
void SHA256_Pad(SHA256_CTX *);
void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *)
	__attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
char *SHA256_End(SHA256_CTX *, char *)
	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
char *SHA256_File(const char *, char *)
	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
char *SHA256_FileChunk(const char *, char *, off_t, off_t)
	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
char *SHA256_Data(const u_int8_t *, size_t, char *)
	__attribute__((__bounded__(__string__,1,2)))
	__attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));

void SHA384_Init(SHA384_CTX *);
void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t)
	__attribute__((__bounded__(__string__,2,3)));
void SHA384_Pad(SHA384_CTX *);
void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *)
	__attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
char *SHA384_End(SHA384_CTX *, char *)
	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
char *SHA384_File(const char *, char *)
	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
char *SHA384_FileChunk(const char *, char *, off_t, off_t)
	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
char *SHA384_Data(const u_int8_t *, size_t, char *)
	__attribute__((__bounded__(__string__,1,2)))
	__attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));

void SHA512_Init(SHA512_CTX *);
void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t)
	__attribute__((__bounded__(__string__,2,3)));
void SHA512_Pad(SHA512_CTX *);
void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *)
	__attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
char *SHA512_End(SHA512_CTX *, char *)
	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
char *SHA512_File(const char *, char *)
	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
char *SHA512_FileChunk(const char *, char *, off_t, off_t)
	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
char *SHA512_Data(const u_int8_t *, size_t, char *)
	__attribute__((__bounded__(__string__,1,2)))
	__attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));

#endif /* !defined(HAVE_SHA256_UPDATE) && !defined(HAVE_EVP_SHA256) */

#endif /* _SHA2_H */
Commit	Line	Data
13ff27b7	1	/* $OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp $ */
	2
	3	/*
	4	* FILE: sha2.h
	5	* AUTHOR: Aaron D. Gifford <me@aarongifford.com>
	6	*
	7	* Copyright (c) 2000-2001, Aaron D. Gifford
	8	* All rights reserved.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 3. Neither the name of the copyright holder nor the names of contributors
	19	* may be used to endorse or promote products derived from this software
	20	* without specific prior written permission.
	21	*
	22	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
	23	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	24	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	25	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
	26	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	27	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	28	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	29	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	30	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	31	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	32	* SUCH DAMAGE.
	33	*
	34	* $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
	35	*/
	36
	37	/* OPENBSD ORIGINAL: include/sha2.h */
	38
	39	#ifndef _SHA2_H
	40	#define _SHA2_H
	41
	42	#include "includes.h"
	43
	44	#if !defined(HAVE_SHA256_UPDATE) && !defined(HAVE_EVP_SHA256)
	45
	46	/* SHA-256/384/512 Various Length Definitions *********************/
	47	#define SHA256_BLOCK_LENGTH 64
	48	#define SHA256_DIGEST_LENGTH 32
	49	#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
	50	#define SHA384_BLOCK_LENGTH 128
	51	#define SHA384_DIGEST_LENGTH 48
	52	#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
	53	#define SHA512_BLOCK_LENGTH 128
	54	#define SHA512_DIGEST_LENGTH 64
	55	#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
	56
	57
	58	/* SHA-256/384/512 Context Structures *****************************/
	59	typedef struct _SHA256_CTX {
	60	u_int32_t state[8];
	61	u_int64_t bitcount;
	62	u_int8_t buffer[SHA256_BLOCK_LENGTH];
	63	} SHA256_CTX;
	64	typedef struct _SHA512_CTX {
65	u_int64_t state[8];
66	u_int64_t bitcount[2];
67	u_int8_t buffer[SHA512_BLOCK_LENGTH];
68	} SHA512_CTX;
69
70	typedef SHA512_CTX SHA384_CTX;
71
72	void SHA256_Init(SHA256_CTX *);
73	void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
74	void SHA256_Update(SHA256_CTX , const u_int8_t , size_t)
75	__attribute__((__bounded__(__string__,2,3)));
76	void SHA256_Pad(SHA256_CTX *);
77	void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *)
78	__attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
79	char SHA256_End(SHA256_CTX , char *)
80	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
81	char SHA256_File(const char , char *)
82	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
83	char SHA256_FileChunk(const char , char *, off_t, off_t)
84	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
85	char SHA256_Data(const u_int8_t , size_t, char *)
86	__attribute__((__bounded__(__string__,1,2)))
87	__attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
88
89	void SHA384_Init(SHA384_CTX *);
90	void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
91	void SHA384_Update(SHA384_CTX , const u_int8_t , size_t)
92	__attribute__((__bounded__(__string__,2,3)));
93	void SHA384_Pad(SHA384_CTX *);
94	void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *)
95	__attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
96	char SHA384_End(SHA384_CTX , char *)
97	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
98	char SHA384_File(const char , char *)
99	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
100	char SHA384_FileChunk(const char , char *, off_t, off_t)
101	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
102	char SHA384_Data(const u_int8_t , size_t, char *)
103	__attribute__((__bounded__(__string__,1,2)))
104	__attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
105
106	void SHA512_Init(SHA512_CTX *);
107	void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
108	void SHA512_Update(SHA512_CTX , const u_int8_t , size_t)
109	__attribute__((__bounded__(__string__,2,3)));
110	void SHA512_Pad(SHA512_CTX *);
111	void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *)
112	__attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
113	char SHA512_End(SHA512_CTX , char *)
114	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
115	char SHA512_File(const char , char *)
116	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
117	char SHA512_FileChunk(const char , char *, off_t, off_t)
118	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
119	char SHA512_Data(const u_int8_t , size_t, char *)
120	__attribute__((__bounded__(__string__,1,2)))
121	__attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
122
123	#endif /* !defined(HAVE_SHA256_UPDATE) && !defined(HAVE_EVP_SHA256) */
124
125	#endif /* _SHA2_H */