1/* $OpenBSD: sha2.h,v 1.10 2016/09/03 17:00:29 tedu 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 "defs"
43
44#if !defined(HAVE_SHA256UPDATE) || !defined(HAVE_SHA384UPDATE) || \
45 !defined(HAVE_SHA512UPDATE)
46
47/*** SHA-256/384/512 Various Length Definitions ***********************/
48#define SHA224_BLOCK_LENGTH 64
49#define SHA224_DIGEST_LENGTH 28
50#define SHA224_DIGEST_STRING_LENGTH (SHA224_DIGEST_LENGTH * 2 + 1)
51#define SHA256_BLOCK_LENGTH 64
52#define SHA256_DIGEST_LENGTH 32
53#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
54#define SHA384_BLOCK_LENGTH 128
55#define SHA384_DIGEST_LENGTH 48
56#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
57#define SHA512_BLOCK_LENGTH 128
58#define SHA512_DIGEST_LENGTH 64
59#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
60#define SHA512_256_BLOCK_LENGTH 128
61#define SHA512_256_DIGEST_LENGTH 32
62#define SHA512_256_DIGEST_STRING_LENGTH (SHA512_256_DIGEST_LENGTH * 2 + 1)
63
64
65/*** SHA-224/256/384/512 Context Structure *******************************/
66typedef struct _SHA2_CTX {
67 union {
68 u_int32_t st32[8];
69 u_int64_t st64[8];
70 } state;
71 u_int64_t bitcount[2];
72 u_int8_t buffer[SHA512_BLOCK_LENGTH];
73} SHA2_CTX;
74
75#if 0
76__BEGIN_DECLS
77void SHA224Init(SHA2_CTX *);
78void SHA224Transform(u_int32_t state[8], const u_int8_t [SHA224_BLOCK_LENGTH]);
79void SHA224Update(SHA2_CTX *, const u_int8_t *, size_t)
80 __attribute__((__bounded__(__string__,2,3)));
81void SHA224Pad(SHA2_CTX *);
82void SHA224Final(u_int8_t [SHA224_DIGEST_LENGTH], SHA2_CTX *)
83 __attribute__((__bounded__(__minbytes__,1,SHA224_DIGEST_LENGTH)));
84char *SHA224End(SHA2_CTX *, char *)
85 __attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
86char *SHA224File(const char *, char *)
87 __attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
88char *SHA224FileChunk(const char *, char *, off_t, off_t)
89 __attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
90char *SHA224Data(const u_int8_t *, size_t, char *)
91 __attribute__((__bounded__(__string__,1,2)))
92 __attribute__((__bounded__(__minbytes__,3,SHA224_DIGEST_STRING_LENGTH)));
93#endif /* 0 */
94
95#ifndef HAVE_SHA256UPDATE
96void SHA256Init(SHA2_CTX *);
97void SHA256Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
98void SHA256Update(SHA2_CTX *, const u_int8_t *, size_t)
99 __attribute__((__bounded__(__string__,2,3)));
100void SHA256Pad(SHA2_CTX *);
101void SHA256Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *)
102 __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
103char *SHA256End(SHA2_CTX *, char *)
104 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
105char *SHA256File(const char *, char *)
106 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
107char *SHA256FileChunk(const char *, char *, off_t, off_t)
108 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
109char *SHA256Data(const u_int8_t *, size_t, char *)
110 __attribute__((__bounded__(__string__,1,2)))
111 __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
112#endif /* HAVE_SHA256UPDATE */
113
114#ifndef HAVE_SHA384UPDATE
115void SHA384Init(SHA2_CTX *);
116void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
117void SHA384Update(SHA2_CTX *, const u_int8_t *, size_t)
118 __attribute__((__bounded__(__string__,2,3)));
119void SHA384Pad(SHA2_CTX *);
120void SHA384Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *)
121 __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
122char *SHA384End(SHA2_CTX *, char *)
123 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
124char *SHA384File(const char *, char *)
125 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
126char *SHA384FileChunk(const char *, char *, off_t, off_t)
127 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
128char *SHA384Data(const u_int8_t *, size_t, char *)
129 __attribute__((__bounded__(__string__,1,2)))
130 __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
131#endif /* HAVE_SHA384UPDATE */
132
133#ifndef HAVE_SHA512UPDATE
134void SHA512Init(SHA2_CTX *);
135void SHA512Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
136void SHA512Update(SHA2_CTX *, const u_int8_t *, size_t)
137 __attribute__((__bounded__(__string__,2,3)));
138void SHA512Pad(SHA2_CTX *);
139void SHA512Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *)
140 __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
141char *SHA512End(SHA2_CTX *, char *)
142 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
143char *SHA512File(const char *, char *)
144 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
145char *SHA512FileChunk(const char *, char *, off_t, off_t)
146 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
147char *SHA512Data(const u_int8_t *, size_t, char *)
148 __attribute__((__bounded__(__string__,1,2)))
149 __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
150#endif /* HAVE_SHA512UPDATE */
151
152#if 0
153void SHA512_256Init(SHA2_CTX *);
154void SHA512_256Transform(u_int64_t state[8], const u_int8_t [SHA512_256_BLOCK_LENGTH]);
155void SHA512_256Update(SHA2_CTX *, const u_int8_t *, size_t)
156 __attribute__((__bounded__(__string__,2,3)));
157void SHA512_256Pad(SHA2_CTX *);
158void SHA512_256Final(u_int8_t [SHA512_256_DIGEST_LENGTH], SHA2_CTX *)
159 __attribute__((__bounded__(__minbytes__,1,SHA512_256_DIGEST_LENGTH)));
160char *SHA512_256End(SHA2_CTX *, char *)
161 __attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
162char *SHA512_256File(const char *, char *)
163 __attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
164char *SHA512_256FileChunk(const char *, char *, off_t, off_t)
165 __attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
166char *SHA512_256Data(const u_int8_t *, size_t, char *)
167 __attribute__((__bounded__(__string__,1,2)))
168 __attribute__((__bounded__(__minbytes__,3,SHA512_256_DIGEST_STRING_LENGTH)));
169__END_DECLS
170#endif /* 0 */
171
172#endif /* HAVE_SHA{256,384,512}UPDATE */
173
174#endif /* _SSHSHA2_H */
