xref: /openssh-portable/openbsd-compat/sha2.h (revision 11cba2a4)
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 "includes.h"
43 #include <sys/cdefs.h>
44 
45 #if !defined(HAVE_SHA256UPDATE) || !defined(HAVE_SHA384UPDATE) || \
46     !defined(HAVE_SHA512UPDATE)
47 
48 /*** SHA-256/384/512 Various Length Definitions ***********************/
49 #define SHA224_BLOCK_LENGTH		64
50 #define SHA224_DIGEST_LENGTH		28
51 #define SHA224_DIGEST_STRING_LENGTH	(SHA224_DIGEST_LENGTH * 2 + 1)
52 #define SHA256_BLOCK_LENGTH		64
53 #define SHA256_DIGEST_LENGTH		32
54 #define SHA256_DIGEST_STRING_LENGTH	(SHA256_DIGEST_LENGTH * 2 + 1)
55 #define SHA384_BLOCK_LENGTH		128
56 #define SHA384_DIGEST_LENGTH		48
57 #define SHA384_DIGEST_STRING_LENGTH	(SHA384_DIGEST_LENGTH * 2 + 1)
58 #define SHA512_BLOCK_LENGTH		128
59 #define SHA512_DIGEST_LENGTH		64
60 #define SHA512_DIGEST_STRING_LENGTH	(SHA512_DIGEST_LENGTH * 2 + 1)
61 #define SHA512_256_BLOCK_LENGTH		128
62 #define SHA512_256_DIGEST_LENGTH	32
63 #define SHA512_256_DIGEST_STRING_LENGTH	(SHA512_256_DIGEST_LENGTH * 2 + 1)
64 
65 
66 /*** SHA-224/256/384/512 Context Structure *******************************/
67 typedef struct _SHA2_CTX {
68 	union {
69 		u_int32_t	st32[8];
70 		u_int64_t	st64[8];
71 	} state;
72 	u_int64_t	bitcount[2];
73 	u_int8_t	buffer[SHA512_BLOCK_LENGTH];
74 } SHA2_CTX;
75 
76 #if 0
77 __BEGIN_DECLS
78 void SHA224Init(SHA2_CTX *);
79 void SHA224Transform(u_int32_t state[8], const u_int8_t [SHA224_BLOCK_LENGTH]);
80 void SHA224Update(SHA2_CTX *, const u_int8_t *, size_t)
81 	__attribute__((__bounded__(__string__,2,3)));
82 void SHA224Pad(SHA2_CTX *);
83 void SHA224Final(u_int8_t [SHA224_DIGEST_LENGTH], SHA2_CTX *)
84 	__attribute__((__bounded__(__minbytes__,1,SHA224_DIGEST_LENGTH)));
85 char *SHA224End(SHA2_CTX *, char *)
86 	__attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
87 char *SHA224File(const char *, char *)
88 	__attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
89 char *SHA224FileChunk(const char *, char *, off_t, off_t)
90 	__attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
91 char *SHA224Data(const u_int8_t *, size_t, char *)
92 	__attribute__((__bounded__(__string__,1,2)))
93 	__attribute__((__bounded__(__minbytes__,3,SHA224_DIGEST_STRING_LENGTH)));
94 #endif /* 0 */
95 
96 #ifndef HAVE_SHA256UPDATE
97 void SHA256Init(SHA2_CTX *);
98 void SHA256Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
99 void SHA256Update(SHA2_CTX *, const u_int8_t *, size_t)
100 	__attribute__((__bounded__(__string__,2,3)));
101 void SHA256Pad(SHA2_CTX *);
102 void SHA256Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *)
103 	__attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
104 char *SHA256End(SHA2_CTX *, char *)
105 	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
106 char *SHA256File(const char *, char *)
107 	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
108 char *SHA256FileChunk(const char *, char *, off_t, off_t)
109 	__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
110 char *SHA256Data(const u_int8_t *, size_t, char *)
111 	__attribute__((__bounded__(__string__,1,2)))
112 	__attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
113 #endif /* HAVE_SHA256UPDATE */
114 
115 #ifndef HAVE_SHA384UPDATE
116 void SHA384Init(SHA2_CTX *);
117 void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
118 void SHA384Update(SHA2_CTX *, const u_int8_t *, size_t)
119 	__attribute__((__bounded__(__string__,2,3)));
120 void SHA384Pad(SHA2_CTX *);
121 void SHA384Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *)
122 	__attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
123 char *SHA384End(SHA2_CTX *, char *)
124 	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
125 char *SHA384File(const char *, char *)
126 	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
127 char *SHA384FileChunk(const char *, char *, off_t, off_t)
128 	__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
129 char *SHA384Data(const u_int8_t *, size_t, char *)
130 	__attribute__((__bounded__(__string__,1,2)))
131 	__attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
132 #endif /* HAVE_SHA384UPDATE */
133 
134 #ifndef HAVE_SHA512UPDATE
135 void SHA512Init(SHA2_CTX *);
136 void SHA512Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
137 void SHA512Update(SHA2_CTX *, const u_int8_t *, size_t)
138 	__attribute__((__bounded__(__string__,2,3)));
139 void SHA512Pad(SHA2_CTX *);
140 void SHA512Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *)
141 	__attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
142 char *SHA512End(SHA2_CTX *, char *)
143 	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
144 char *SHA512File(const char *, char *)
145 	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
146 char *SHA512FileChunk(const char *, char *, off_t, off_t)
147 	__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
148 char *SHA512Data(const u_int8_t *, size_t, char *)
149 	__attribute__((__bounded__(__string__,1,2)))
150 	__attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
151 #endif /* HAVE_SHA512UPDATE */
152 
153 #if 0
154 void SHA512_256Init(SHA2_CTX *);
155 void SHA512_256Transform(u_int64_t state[8], const u_int8_t [SHA512_256_BLOCK_LENGTH]);
156 void SHA512_256Update(SHA2_CTX *, const u_int8_t *, size_t)
157 	__attribute__((__bounded__(__string__,2,3)));
158 void SHA512_256Pad(SHA2_CTX *);
159 void SHA512_256Final(u_int8_t [SHA512_256_DIGEST_LENGTH], SHA2_CTX *)
160 	__attribute__((__bounded__(__minbytes__,1,SHA512_256_DIGEST_LENGTH)));
161 char *SHA512_256End(SHA2_CTX *, char *)
162 	__attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
163 char *SHA512_256File(const char *, char *)
164 	__attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
165 char *SHA512_256FileChunk(const char *, char *, off_t, off_t)
166 	__attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
167 char *SHA512_256Data(const u_int8_t *, size_t, char *)
168 	__attribute__((__bounded__(__string__,1,2)))
169 	__attribute__((__bounded__(__minbytes__,3,SHA512_256_DIGEST_STRING_LENGTH)));
170 __END_DECLS
171 #endif /* 0 */
172 
173 #endif /* HAVE_SHA{256,384,512}UPDATE */
174 
175 #endif /* _SSHSHA2_H */
176