md5_utils.h revision ba164dffc5a6795bce97fae02b51ccf3330e15e4 
1/*
2 * This is the header file for 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 * Changed so as no longer to depend on Colin Plumb's `usual.h'
18 * header definitions
19 *  - Ian Jackson <ian@chiark.greenend.org.uk>.
20 * Still in the public domain.
21 */
22
23#ifndef MD5_H
24#define MD5_H
25
26#define md5byte unsigned char
27#define UWORD32 unsigned int
28
29typedef struct MD5Context MD5Context;
30struct MD5Context {
31  UWORD32 buf[4];
32  UWORD32 bytes[2];
33  UWORD32 in[16];
34};
35
36void MD5Init(struct MD5Context *context);
37void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len);
38void MD5Final(unsigned char digest[16], struct MD5Context *context);
39void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]);
40
41#endif /* !MD5_H */
42