md5.h revision d7ed851d6fc26c5e7db96971dbe6b44342b97727 
1/*
2 * This code implements the MD5 message-digest algorithm.
3 * The algorithm is due to Ron Rivest.	This code was
4 * written by Colin Plumb in 1993, no copyright is claimed.
5 * This code is in the public domain; do with it what you wish.
6 *
7 * Equivalent code is available from RSA Data Security, Inc.
8 * This code has been tested against that, and is equivalent,
9 * except that you don't need to include two pages of legalese
10 * with every copy.
11 *
12 * To compute the message digest of a chunk of bytes, declare an
13 * MD5Context structure, pass it to MD5Init, call MD5Update as
14 * needed on buffers full of bytes, and then call MD5Final, which
15 * will fill a supplied 16-byte array with the digest.
16 */
17
18#ifndef MD5_H_
19#define MD5_H_
20
21#define MD5_DIGEST_LENGTH	16
22#define MD5_BLOCK_LENGTH	64
23
24typedef struct MD5Context {
25	uint32_t state[4];	/* state (ABCD) */
26	uint64_t count;		/* number of bits, modulo 2^64 (lsb first) */
27	unsigned char buffer[MD5_BLOCK_LENGTH]; /* input buffer */
28} MD5_CTX;
29
30void	MD5Init(MD5_CTX *);
31void	MD5Update(MD5_CTX *, const unsigned char *, size_t);
32void	MD5Final(unsigned char[MD5_DIGEST_LENGTH], MD5_CTX *);
33#endif
34