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