xref: /openssh-portable/openbsd-compat/md5.h (revision 81bfbd0b)
1*81bfbd0bSDamien Miller /*	$OpenBSD: md5.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $	*/
2*81bfbd0bSDamien Miller 
3*81bfbd0bSDamien Miller /*
4*81bfbd0bSDamien Miller  * This code implements the MD5 message-digest algorithm.
5*81bfbd0bSDamien Miller  * The algorithm is due to Ron Rivest.  This code was
6*81bfbd0bSDamien Miller  * written by Colin Plumb in 1993, no copyright is claimed.
7*81bfbd0bSDamien Miller  * This code is in the public domain; do with it what you wish.
8*81bfbd0bSDamien Miller  *
9*81bfbd0bSDamien Miller  * Equivalent code is available from RSA Data Security, Inc.
10*81bfbd0bSDamien Miller  * This code has been tested against that, and is equivalent,
11*81bfbd0bSDamien Miller  * except that you don't need to include two pages of legalese
12*81bfbd0bSDamien Miller  * with every copy.
13*81bfbd0bSDamien Miller  */
14*81bfbd0bSDamien Miller 
15*81bfbd0bSDamien Miller #ifndef _MD5_H_
16*81bfbd0bSDamien Miller #define _MD5_H_
17*81bfbd0bSDamien Miller 
18*81bfbd0bSDamien Miller #ifndef WITH_OPENSSL
19*81bfbd0bSDamien Miller 
20*81bfbd0bSDamien Miller #define	MD5_BLOCK_LENGTH		64
21*81bfbd0bSDamien Miller #define	MD5_DIGEST_LENGTH		16
22*81bfbd0bSDamien Miller #define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
23*81bfbd0bSDamien Miller 
24*81bfbd0bSDamien Miller typedef struct MD5Context {
25*81bfbd0bSDamien Miller 	u_int32_t state[4];			/* state */
26*81bfbd0bSDamien Miller 	u_int64_t count;			/* number of bits, mod 2^64 */
27*81bfbd0bSDamien Miller 	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
28*81bfbd0bSDamien Miller } MD5_CTX;
29*81bfbd0bSDamien Miller 
30*81bfbd0bSDamien Miller void	 MD5Init(MD5_CTX *);
31*81bfbd0bSDamien Miller void	 MD5Update(MD5_CTX *, const u_int8_t *, size_t)
32*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__string__,2,3)));
33*81bfbd0bSDamien Miller void	 MD5Pad(MD5_CTX *);
34*81bfbd0bSDamien Miller void	 MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
35*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
36*81bfbd0bSDamien Miller void	 MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
37*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,1,4)))
38*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
39*81bfbd0bSDamien Miller char	*MD5End(MD5_CTX *, char *)
40*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
41*81bfbd0bSDamien Miller char	*MD5File(const char *, char *)
42*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
43*81bfbd0bSDamien Miller char	*MD5FileChunk(const char *, char *, off_t, off_t)
44*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
45*81bfbd0bSDamien Miller char	*MD5Data(const u_int8_t *, size_t, char *)
46*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__string__,1,2)))
47*81bfbd0bSDamien Miller 		__attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
48*81bfbd0bSDamien Miller 
49*81bfbd0bSDamien Miller #endif /* !WITH_OPENSSL */
50*81bfbd0bSDamien Miller 
51*81bfbd0bSDamien Miller #endif /* _MD5_H_ */
52