2 * UCW Library -- MD5 Message Digest
4 * This file is in public domain (see ucw/md5.c).
10 #ifdef CONFIG_UCW_CLEAN_ABI
11 #define md5_final ucw_md5_final
12 #define md5_hash_buffer ucw_md5_hash_buffer
13 #define md5_init ucw_md5_init
14 #define md5_transform ucw_md5_transform
15 #define md5_update ucw_md5_update
19 * Internal MD5 hash state.
20 * You should use it just as an opaque handle only.
28 void md5_init(md5_context *context); /** Initialize the MD5 hashing algorithm in @context. **/
30 * Push another @len bytes of data from @buf to the MD5 hash
31 * represented by @context. You can call it multiple time on the same
32 * @context without reinitializing it and the result will be the same
33 * as if you concatenated all the data together and fed them here all at
36 void md5_update(md5_context *context, const byte *buf, uint len);
38 * Call this after the last @md5_update(). It will terminate the
39 * algorithm and return a pointer to the result.
41 * Note that the data it points to are stored inside the @context, so
42 * if you use it to compute another hash or it ceases to exist, the
43 * pointer becomes invalid.
45 * To convert the hash to its usual hexadecimal representation, see
46 * <<string:mem_to_hex()>>.
48 byte *md5_final(md5_context *context);
51 * This is the core routine of the MD5 algorithm. It takes 16 longwords of
52 * data in @in and transforms the hash in @buf according to them.
54 * You probably do not want to call this one directly.
56 void md5_transform(u32 buf[4], const u32 in[16]);
59 * MD5 one-shot convenience method. It takes @length bytes from
60 * @buffer, creates the hash from them and returns it in @output.
62 * It is equivalent to this code:
66 * md5_update(&c, buffer, length);
67 * memcpy(outbuf, md5_final(&c), MD5_SIZE);
69 void md5_hash_buffer(byte *outbuf, const byte *buffer, uint length);
71 #define MD5_HEX_SIZE 33 /** How many bytes a string buffer for MD5 in hexadecimal format should have. **/
72 #define MD5_SIZE 16 /** Number of bytes the MD5 hash takes in the binary form. **/
74 #endif /* !_UCW_MD5_H */