1285031Sdes/*	$OpenBSD: md5.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $	*/
2285031Sdes
3285031Sdes/*
4285031Sdes * This code implements the MD5 message-digest algorithm.
5285031Sdes * The algorithm is due to Ron Rivest.  This code was
6285031Sdes * written by Colin Plumb in 1993, no copyright is claimed.
7285031Sdes * This code is in the public domain; do with it what you wish.
8285031Sdes *
9285031Sdes * Equivalent code is available from RSA Data Security, Inc.
10285031Sdes * This code has been tested against that, and is equivalent,
11285031Sdes * except that you don't need to include two pages of legalese
12285031Sdes * with every copy.
13285031Sdes */
14285031Sdes
15285031Sdes#ifndef _MD5_H_
16285031Sdes#define _MD5_H_
17285031Sdes
18285031Sdes#ifndef WITH_OPENSSL
19285031Sdes
20285031Sdes#define	MD5_BLOCK_LENGTH		64
21285031Sdes#define	MD5_DIGEST_LENGTH		16
22285031Sdes#define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
23285031Sdes
24285031Sdestypedef struct MD5Context {
25285031Sdes	u_int32_t state[4];			/* state */
26285031Sdes	u_int64_t count;			/* number of bits, mod 2^64 */
27285031Sdes	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
28285031Sdes} MD5_CTX;
29285031Sdes
30285031Sdesvoid	 MD5Init(MD5_CTX *);
31285031Sdesvoid	 MD5Update(MD5_CTX *, const u_int8_t *, size_t)
32285031Sdes		__attribute__((__bounded__(__string__,2,3)));
33285031Sdesvoid	 MD5Pad(MD5_CTX *);
34285031Sdesvoid	 MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
35285031Sdes		__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
36285031Sdesvoid	 MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
37285031Sdes		__attribute__((__bounded__(__minbytes__,1,4)))
38285031Sdes		__attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
39285031Sdeschar	*MD5End(MD5_CTX *, char *)
40285031Sdes		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
41285031Sdeschar	*MD5File(const char *, char *)
42285031Sdes		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
43285031Sdeschar	*MD5FileChunk(const char *, char *, off_t, off_t)
44285031Sdes		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
45285031Sdeschar	*MD5Data(const u_int8_t *, size_t, char *)
46285031Sdes		__attribute__((__bounded__(__string__,1,2)))
47285031Sdes		__attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
48285031Sdes
49285031Sdes#endif /* !WITH_OPENSSL */
50285031Sdes
51285031Sdes#endif /* _MD5_H_ */
52