xref: /freebsd/sys/crypto/sha2/sha256.h (revision 325151a3)
1 /*-
2  * Copyright 2005 Colin Percival
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _SHA256_H_
30 #define _SHA256_H_
31 
32 #ifndef _KERNEL
33 #include <sys/types.h>
34 #endif
35 
36 typedef struct SHA256Context {
37 	uint32_t state[8];
38 	uint64_t count;
39 	uint8_t buf[64];
40 } SHA256_CTX;
41 
42 __BEGIN_DECLS
43 
44 /* Ensure libmd symbols do not clash with libcrypto */
45 
46 #ifndef SHA256_Init
47 #define SHA256_Init		_libmd_SHA256_Init
48 #endif
49 #ifndef SHA256_Update
50 #define SHA256_Update		_libmd_SHA256_Update
51 #endif
52 #ifndef SHA256_Final
53 #define SHA256_Final		_libmd_SHA256_Final
54 #endif
55 #ifndef SHA256_End
56 #define SHA256_End		_libmd_SHA256_End
57 #endif
58 #ifndef SHA256_File
59 #define SHA256_File		_libmd_SHA256_File
60 #endif
61 #ifndef SHA256_FileChunk
62 #define SHA256_FileChunk	_libmd_SHA256_FileChunk
63 #endif
64 #ifndef SHA256_Data
65 #define SHA256_Data		_libmd_SHA256_Data
66 #endif
67 
68 #ifndef SHA256_Transform
69 #define SHA256_Transform	_libmd_SHA256_Transform
70 #endif
71 #ifndef SHA256_version
72 #define SHA256_version		_libmd_SHA256_version
73 #endif
74 
75 void	SHA256_Init(SHA256_CTX *);
76 void	SHA256_Update(SHA256_CTX *, const void *, size_t);
77 void	SHA256_Final(unsigned char [32], SHA256_CTX *);
78 char   *SHA256_End(SHA256_CTX *, char *);
79 char   *SHA256_Data(const void *, unsigned int, char *);
80 #ifndef _KERNEL
81 char   *SHA256_File(const char *, char *);
82 char   *SHA256_FileChunk(const char *, char *, off_t, off_t);
83 #endif
84 __END_DECLS
85 
86 #endif /* !_SHA256_H_ */
87