hmac.h revision 1.2 
1/*	$OpenBSD: hmac.h,v 1.2 2008/09/06 22:23:20 djm Exp $	*/
2
3/*-
4 * Copyright (c) 2008 Damien Bergamini <damien.bergamini@free.fr>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _HMAC_H_
20#define _HMAC_H_
21
22typedef struct _HMAC_MD5_CTX {
23	MD5_CTX		ctx;
24	u_int8_t	key[MD5_BLOCK_LENGTH];
25	u_int		key_len;
26} HMAC_MD5_CTX;
27
28typedef struct _HMAC_SHA1_CTX {
29	SHA1_CTX	ctx;
30	u_int8_t	key[SHA1_BLOCK_LENGTH];
31	u_int		key_len;
32} HMAC_SHA1_CTX;
33
34typedef struct _HMAC_SHA256_CTX {
35	SHA2_CTX	ctx;
36	u_int8_t	key[SHA256_BLOCK_LENGTH];
37	u_int		key_len;
38} HMAC_SHA256_CTX;
39
40#include <sys/cdefs.h>
41
42__BEGIN_DECLS
43
44void	 HMAC_MD5_Init(HMAC_MD5_CTX *, const u_int8_t *, u_int)
45		__attribute__((__bounded__(__string__,2,3)));
46void	 HMAC_MD5_Update(HMAC_MD5_CTX *, const u_int8_t *, u_int)
47		__attribute__((__bounded__(__string__,2,3)));
48void	 HMAC_MD5_Final(u_int8_t [MD5_DIGEST_LENGTH], HMAC_MD5_CTX *)
49		__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
50
51void	 HMAC_SHA1_Init(HMAC_SHA1_CTX *, const u_int8_t *, u_int)
52		__attribute__((__bounded__(__string__,2,3)));
53void	 HMAC_SHA1_Update(HMAC_SHA1_CTX *, const u_int8_t *, u_int)
54		__attribute__((__bounded__(__string__,2,3)));
55void	 HMAC_SHA1_Final(u_int8_t [SHA1_DIGEST_LENGTH], HMAC_SHA1_CTX *)
56		__attribute__((__bounded__(__minbytes__,1,SHA1_DIGEST_LENGTH)));
57
58void	 HMAC_SHA256_Init(HMAC_SHA256_CTX *, const u_int8_t *, u_int)
59		__attribute__((__bounded__(__string__,2,3)));
60void	 HMAC_SHA256_Update(HMAC_SHA256_CTX *, const u_int8_t *, u_int)
61		__attribute__((__bounded__(__string__,2,3)));
62void	 HMAC_SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], HMAC_SHA256_CTX *)
63		__attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
64
65__END_DECLS
66
67#endif	/* _HMAC_H_ */
68