1 /*	contrib/pgcrypto/md5.h */
2 /*	   $KAME: md5.h,v 1.3 2000/02/22 14:01:18 itojun 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 
38 typedef struct
39 {
40 	union
41 	{
42 		uint32		md5_state32[4];
43 		uint8		md5_state8[16];
44 	}			md5_st;
45 
46 #define md5_sta		md5_st.md5_state32[0]
47 #define md5_stb		md5_st.md5_state32[1]
48 #define md5_stc		md5_st.md5_state32[2]
49 #define md5_std		md5_st.md5_state32[3]
50 #define md5_st8		md5_st.md5_state8
51 
52 	union
53 	{
54 		uint64		md5_count64;
55 		uint8		md5_count8[8];
56 	}			md5_count;
57 #define md5_n	md5_count.md5_count64
58 #define md5_n8	md5_count.md5_count8
59 
60 	unsigned int md5_i;
61 	uint8		md5_buf[MD5_BUFLEN];
62 } md5_ctxt;
63 
64 extern void md5_init(md5_ctxt *);
65 extern void md5_loop(md5_ctxt *, const uint8 *, unsigned int);
66 extern void md5_pad(md5_ctxt *);
67 extern void md5_result(uint8 *, md5_ctxt *);
68 
69 /* compatibility */
70 #define MD5_CTX		md5_ctxt
71 #define MD5Init(x)	md5_init((x))
72 #define MD5Update(x, y, z)	md5_loop((x), (y), (z))
73 #define MD5Final(x, y) \
74 do {				\
75 	md5_pad((y));		\
76 	md5_result((x), (y));	\
77 } while (0)
78 
79 #endif							/* ! _NETINET6_MD5_H_ */
80