1/*	$FreeBSD: src/sys/crypto/md5.h,v 1.4 2002/03/20 05:13:50 alfred Exp $	*/
2/*	$KAME: md5.h,v 1.4 2000/03/27 04:36:22 sumikawa Exp $	*/
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef _NETINET6_MD5_H_
34#define _NETINET6_MD5_H_
35
36#define MD5_BUFLEN	64
37
38typedef struct {
39	union {
40		u_int32_t	md5_state32[4];
41		u_int8_t	md5_state8[16];
42	} md5_st;
43
44#define md5_sta		md5_st.md5_state32[0]
45#define md5_stb		md5_st.md5_state32[1]
46#define md5_stc		md5_st.md5_state32[2]
47#define md5_std		md5_st.md5_state32[3]
48#define md5_st8		md5_st.md5_state8
49
50	union {
51		u_int64_t	md5_count64;
52		u_int8_t	md5_count8[8];
53	} md5_count;
54#define md5_n	md5_count.md5_count64
55#define md5_n8	md5_count.md5_count8
56
57	u_int	md5_i;
58	u_int8_t	md5_buf[MD5_BUFLEN];
59} md5_ctxt;
60
61extern void md5_init(md5_ctxt *);
62extern void md5_loop(md5_ctxt *, u_int8_t *, u_int);
63extern void md5_pad(md5_ctxt *);
64extern void md5_result(u_int8_t *, md5_ctxt *);
65
66/* compatibility */
67#define MD5_CTX		md5_ctxt
68#define MD5Init(x)	md5_init((x))
69#define MD5Update(x, y, z)	md5_loop((x), (y), (z))
70#define MD5Final(x, y) \
71do {				\
72	md5_pad((y));		\
73	md5_result((x), (y));	\
74} while (0)
75
76#endif /* ! _NETINET6_MD5_H_*/
77