md5.h revision 1.14 
1/*	$OpenBSD: md5.h,v 1.14 2004/04/29 15:51:16 millert Exp $	*/
2
3/*
4 * This code implements the MD5 message-digest algorithm.
5 * The algorithm is due to Ron Rivest.  This code was
6 * written by Colin Plumb in 1993, no copyright is claimed.
7 * This code is in the public domain; do with it what you wish.
8 *
9 * Equivalent code is available from RSA Data Security, Inc.
10 * This code has been tested against that, and is equivalent,
11 * except that you don't need to include two pages of legalese
12 * with every copy.
13 */
14
15#ifndef _MD5_H_
16#define _MD5_H_
17
18#define	MD5_BLOCK_LENGTH		64
19#define	MD5_DIGEST_LENGTH		16
20#define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
21
22typedef struct MD5Context {
23	u_int32_t state[4];			/* state */
24	u_int64_t count;			/* number of bits, mod 2^64 */
25	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
26} MD5_CTX;
27
28#include <sys/cdefs.h>
29
30__BEGIN_DECLS
31void	 MD5Init(MD5_CTX *);
32void	 MD5Update(MD5_CTX *, const u_int8_t *, size_t)
33		__attribute__((__bounded__(__string__,2,3)));
34void	 MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
35		__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
36void	 MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
37		__attribute__((__bounded__(__minbytes__,1,4)))
38		__attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
39char	*MD5End(MD5_CTX *, char *)
40		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
41char	*MD5File(char *, char *)
42		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
43char	*MD5Data(const u_int8_t *, size_t, char *)
44		__attribute__((__bounded__(__string__,1,2)))
45		__attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
46__END_DECLS
47
48#endif /* _MD5_H_ */
49