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