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1 | /* $OpenBSD: sha2.h,v 1.8 2012/12/05 23:19:57 deraadt 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 | #ifndef _SHA2_H | |
38 | #define _SHA2_H | |
39 | ||
40 | /* Additions for setup */ | |
41 | #define u_int8_t __UINT8_TYPE__ | |
42 | #define u_int32_t __UINT32_TYPE__ | |
43 | #define u_int64_t __UINT64_TYPE__ | |
44 | #define SHA2_SMALL | |
45 | #define explicit_bzero(a,b) (memset((a),0,(b))) | |
46 | #include <sys/cdefs.h> | |
47 | #include <sys/param.h> | |
48 | /* End additions for setup */ | |
49 | ||
50 | /*** SHA-256/384/512 Various Length Definitions ***********************/ | |
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 | ||
61 | ||
62 | /*** SHA-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 | __BEGIN_DECLS | |
73 | void SHA256Init(SHA2_CTX *); | |
74 | void SHA256Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]); | |
75 | void SHA256Update(SHA2_CTX *, const u_int8_t *, size_t) | |
76 | __attribute__((__bounded__(__string__,2,3))); | |
77 | void SHA256Pad(SHA2_CTX *); | |
78 | void SHA256Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *) | |
79 | __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH))); | |
80 | char *SHA256End(SHA2_CTX *, char *) | |
81 | __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); | |
82 | char *SHA256File(const char *, char *) | |
83 | __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); | |
84 | char *SHA256FileChunk(const char *, char *, off_t, off_t) | |
85 | __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); | |
86 | char *SHA256Data(const u_int8_t *, size_t, char *) | |
87 | __attribute__((__bounded__(__string__,1,2))) | |
88 | __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH))); | |
89 | ||
90 | void SHA384Init(SHA2_CTX *); | |
91 | void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]); | |
92 | void SHA384Update(SHA2_CTX *, const u_int8_t *, size_t) | |
93 | __attribute__((__bounded__(__string__,2,3))); | |
94 | void SHA384Pad(SHA2_CTX *); | |
95 | void SHA384Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *) | |
96 | __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH))); | |
97 | char *SHA384End(SHA2_CTX *, char *) | |
98 | __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); | |
99 | char *SHA384File(const char *, char *) | |
100 | __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); | |
101 | char *SHA384FileChunk(const char *, char *, off_t, off_t) | |
102 | __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); | |
103 | char *SHA384Data(const u_int8_t *, size_t, char *) | |
104 | __attribute__((__bounded__(__string__,1,2))) | |
105 | __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH))); | |
106 | ||
107 | void SHA512Init(SHA2_CTX *); | |
108 | void SHA512Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]); | |
109 | void SHA512Update(SHA2_CTX *, const u_int8_t *, size_t) | |
110 | __attribute__((__bounded__(__string__,2,3))); | |
111 | void SHA512Pad(SHA2_CTX *); | |
112 | void SHA512Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *) | |
113 | __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH))); | |
114 | char *SHA512End(SHA2_CTX *, char *) | |
115 | __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); | |
116 | char *SHA512File(const char *, char *) | |
117 | __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); | |
118 | char *SHA512FileChunk(const char *, char *, off_t, off_t) | |
119 | __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); | |
120 | char *SHA512Data(const u_int8_t *, size_t, char *) | |
121 | __attribute__((__bounded__(__string__,1,2))) | |
122 | __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH))); | |
123 | __END_DECLS | |
124 | ||
125 | #endif /* _SHA2_H */ |