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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 _SSHSHA2_H
40#define _SSHSHA2_H
41
42#include "includes.h"
43
44#include <openssl/opensslv.h>
45
46#if !defined(HAVE_EVP_SHA256) && !defined(HAVE_SHA256_UPDATE) && \
47 (OPENSSL_VERSION_NUMBER >= 0x00907000L)
48
49/*** SHA-256/384/512 Various Length Definitions ***********************/
50#define SHA256_BLOCK_LENGTH 64
51#define SHA256_DIGEST_LENGTH 32
52#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
53#define SHA384_BLOCK_LENGTH 128
54#define SHA384_DIGEST_LENGTH 48
55#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
56#define SHA512_BLOCK_LENGTH 128
57#define SHA512_DIGEST_LENGTH 64
58#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
59
60
61/*** SHA-256/384/512 Context Structures *******************************/
62typedef struct _SHA256_CTX {
63 u_int32_t state[8];
64 u_int64_t bitcount;
65 u_int8_t buffer[SHA256_BLOCK_LENGTH];
66} SHA256_CTX;
67typedef struct _SHA512_CTX {
68 u_int64_t state[8];
69 u_int64_t bitcount[2];
70 u_int8_t buffer[SHA512_BLOCK_LENGTH];
71} SHA512_CTX;
72
73#if 0
74typedef SHA512_CTX SHA384_CTX;
75#endif
76
77void SHA256_Init(SHA256_CTX *);
78void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
79void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t)
80 __attribute__((__bounded__(__string__,2,3)));
81void SHA256_Pad(SHA256_CTX *);
82void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *)
83 __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
84char *SHA256_End(SHA256_CTX *, char *)
85 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
86char *SHA256_File(const char *, char *)
87 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
88char *SHA256_FileChunk(const char *, char *, off_t, off_t)
89 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
90char *SHA256_Data(const u_int8_t *, size_t, char *)
91 __attribute__((__bounded__(__string__,1,2)))
92 __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
93
94#if 0
95void SHA384_Init(SHA384_CTX *);
96void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
97void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t)
98 __attribute__((__bounded__(__string__,2,3)));
99void SHA384_Pad(SHA384_CTX *);
100void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *)
101 __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
102char *SHA384_End(SHA384_CTX *, char *)
103 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
104char *SHA384_File(const char *, char *)
105 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
106char *SHA384_FileChunk(const char *, char *, off_t, off_t)
107 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
108char *SHA384_Data(const u_int8_t *, size_t, char *)
109 __attribute__((__bounded__(__string__,1,2)))
110 __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
111#endif /* 0 */
112
113void SHA512_Init(SHA512_CTX *);
114void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
115void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t)
116 __attribute__((__bounded__(__string__,2,3)));
117void SHA512_Pad(SHA512_CTX *);
118void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *)
119 __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
120char *SHA512_End(SHA512_CTX *, char *)
121 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
122char *SHA512_File(const char *, char *)
123 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
124char *SHA512_FileChunk(const char *, char *, off_t, off_t)
125 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
126char *SHA512_Data(const u_int8_t *, size_t, char *)
127 __attribute__((__bounded__(__string__,1,2)))
128 __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
129
130#endif /* !defined(HAVE_EVP_SHA256) && !defined(HAVE_SHA256_UPDATE) && \
131 (OPENSSL_VERSION_NUMBER >= 0x00907000L) */
132
133#endif /* _SSHSHA2_H */