1 /*	$NetBSD: sha2.h,v 1.4 2006/09/09 16:22:36 manu Exp $	*/
2 
3 /*	$KAME: sha2.h,v 1.2 2001/08/08 22:09:27 sakane Exp $	*/
4 
5 /*
6  * sha2.h
7  *
8  * Version 1.0.0beta1
9  *
10  * Written by Aaron D. Gifford <me@aarongifford.com>
11  *
12  * Copyright 2000 Aaron D. Gifford.  All rights reserved.
13  *
14  * Redistribution and use in source and binary forms, with or without
15  * modification, are permitted provided that the following conditions
16  * are met:
17  * 1. Redistributions of source code must retain the above copyright
18  *    notice, this list of conditions and the following disclaimer.
19  * 2. Redistributions in binary form must reproduce the above copyright
20  *    notice, this list of conditions and the following disclaimer in the
21  *    documentation and/or other materials provided with the distribution.
22  * 3. Neither the name of the copyright holder nor the names of contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  */
39 
40 #ifndef __SHA2_H__
41 #define __SHA2_H__
42 
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46 
47 
48 /*** SHA-256/384/512 Various Length Definitions ***********************/
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 
59 
60 /*** SHA-256/384/512 Context Structures *******************************/
61 /* NOTE: If your architecture does not define either u_intXX_t types or
62  * uintXX_t (from inttypes.h), you may need to define things by hand
63  * for your system:
64  */
65 #if 0
66 typedef unsigned char u_int8_t;		/* 1-byte  (8-bits)  */
67 typedef unsigned int u_int32_t;		/* 4-bytes (32-bits) */
68 typedef unsigned long long u_int64_t;	/* 8-bytes (64-bits) */
69 #endif
70 
71 #ifndef HAVE_SHA2_IN_SHA_H
72 /*
73  * Most BSD systems already define u_intXX_t types, as does Linux.
74  * Some systems, however, like Compaq's Tru64 Unix instead can use
75  * uintXX_t types defined by very recent ANSI C standards and included
76  * in the file:
77  *
78  *   #include <inttypes.h>
79  *
80  * If you choose to use <inttypes.h> then please define:
81  *
82  *   #define SHA2_USE_INTTYPES_H
83  *
84  * Or on the command line during compile:
85  *
86  *   cc -DSHA2_USE_INTTYPES_H ...
87  */
88 #if 0 /*def SHA2_USE_INTTYPES_H*/
89 
90 typedef struct _SHA256_CTX {
91 	uint32_t	state[8];
92 	uint64_t	bitcount;
93 	uint8_t	buffer[SHA256_BLOCK_LENGTH];
94 } SHA256_CTX;
95 typedef struct _SHA512_CTX {
96 	uint64_t	state[8];
97 	uint64_t	bitcount[2];
98 	uint8_t	buffer[SHA512_BLOCK_LENGTH];
99 } SHA512_CTX;
100 
101 #else /* SHA2_USE_INTTYPES_H */
102 
103 typedef struct _SHA256_CTX {
104 	u_int32_t	state[8];
105 	u_int64_t	bitcount;
106 	u_int8_t	buffer[SHA256_BLOCK_LENGTH];
107 } SHA256_CTX;
108 typedef struct _SHA512_CTX {
109 	u_int64_t	state[8];
110 	u_int64_t	bitcount[2];
111 	u_int8_t	buffer[SHA512_BLOCK_LENGTH];
112 } SHA512_CTX;
113 
114 #endif /* SHA2_USE_INTTYPES_H */
115 #endif /* HAVE_SHA2_IN_SHA_H */
116 
117 typedef SHA512_CTX SHA384_CTX;
118 
119 
120 /*** SHA-256/384/512 Function Prototypes ******************************/
121 
122 #ifndef HAVE_SHA2_IN_SHA_H
123 void SHA256_Init __P((SHA256_CTX *));
124 void SHA256_Update __P((SHA256_CTX*, const u_int8_t*, size_t));
125 void SHA256_Final __P((u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*));
126 #endif /* HAVE_SHA2_IN_SHA_H */
127 char* SHA256_End __P((SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]));
128 char* SHA256_Data __P((const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]));
129 
130 #ifndef HAVE_SHA2_IN_SHA_H
131 void SHA384_Init __P((SHA384_CTX*));
132 void SHA384_Update __P((SHA384_CTX*, const u_int8_t*, size_t));
133 void SHA384_Final __P((u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*));
134 #endif /* HAVE_SHA2_IN_SHA_H */
135 char* SHA384_End __P((SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]));
136 char* SHA384_Data __P((const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]));
137 
138 #ifndef HAVE_SHA2_IN_SHA_H
139 void SHA512_Init __P((SHA512_CTX*));
140 void SHA512_Update __P((SHA512_CTX*, const u_int8_t*, size_t));
141 void SHA512_Final __P((u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*));
142 #endif /* HAVE_SHA2_IN_SHA_H */
143 char* SHA512_End __P((SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]));
144 char* SHA512_Data __P((const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]));
145 
146 struct env_md_st *EVP_sha2_256 __P((void));
147 struct env_md_st *EVP_sha2_384 __P((void));
148 struct env_md_st *EVP_sha2_512 __P((void));
149 
150 #ifdef HAVE_SHA2_IN_SHA_H
151 #define EVP_sha2_256 EVP_sha256
152 #define EVP_sha2_384 EVP_sha384
153 #define EVP_sha2_512 EVP_sha512
154 #endif
155 
156 #ifdef	__cplusplus
157 }
158 #endif /* __cplusplus */
159 
160 #endif /* __SHA2_H__ */
161 
162