1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*/
#ifndef MHD_MD5_H
#define MHD_MD5_H
#include "platform.h"
#define MD5_BLOCK_SIZE 64
#define MD5_DIGEST_SIZE 16
#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_SIZE * 2 + 1)
struct MD5Context
{
uint32_t state[4]; /* state */
uint64_t count; /* number of bits, mod 2^64 */
uint8_t buffer[MD5_BLOCK_SIZE]; /* input buffer */
};
/**
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
* initialization constants.
*
* @param ctx_ must be a `struct MD5Context *`
*/
void
MD5Init (void *ctx_);
/**
* Update context to reflect the concatenation of another buffer full
* of bytes.
*
* @param ctx_ must be a `struct MD5Context *`
*/
void
MD5Update (void *ctx_,
const uint8_t *input,
size_t len);
/**
* Final wrapup--call MD5Pad, fill in digest and zero out ctx.
*
* @param ctx_ must be a `struct MD5Context *`
*/
void
MD5Final (void *ctx_,
unsigned char digest[MD5_DIGEST_SIZE]);
#endif /* !MHD_MD5_H */
|
