1 /* $OpenBSD: md5.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $ */
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.
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
20 #define MD5_BLOCK_LENGTH 64
21 #define MD5_DIGEST_LENGTH 16
22 #define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1)
24 typedef struct MD5Context {
25 u_int32_t state[4]; /* state */
26 u_int64_t count; /* number of bits, mod 2^64 */
27 u_int8_t buffer[MD5_BLOCK_LENGTH]; /* input buffer */
30 void MD5Init(MD5_CTX *);
31 void MD5Update(MD5_CTX *, const u_int8_t *, size_t)
32 __attribute__((__bounded__(__string__,2,3)));
33 void MD5Pad(MD5_CTX *);
34 void MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
35 __attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
36 void 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)));
39 char *MD5End(MD5_CTX *, char *)
40 __attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
41 char *MD5File(const char *, char *)
42 __attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
43 char *MD5FileChunk(const char *, char *, off_t, off_t)
44 __attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
45 char *MD5Data(const u_int8_t *, size_t, char *)
46 __attribute__((__bounded__(__string__,1,2)))
47 __attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
49 #endif /* !WITH_OPENSSL */