1 | |
---|
2 | /* |
---|
3 | ** ******************************************************************** |
---|
4 | ** md4.h -- Header file for implementation of ** |
---|
5 | ** MD4 Message Digest Algorithm ** |
---|
6 | ** Updated: 2/13/90 by Ronald L. Rivest ** |
---|
7 | ** (C) 1990 RSA Data Security, Inc. ** |
---|
8 | ** ******************************************************************** |
---|
9 | */ |
---|
10 | |
---|
11 | #ifndef __P |
---|
12 | # if defined(__STDC__) || defined(__GNUC__) |
---|
13 | # define __P(x) x |
---|
14 | # else |
---|
15 | # define __P(x) () |
---|
16 | # endif |
---|
17 | #endif |
---|
18 | |
---|
19 | |
---|
20 | /* MDstruct is the data structure for a message digest computation. |
---|
21 | */ |
---|
22 | typedef struct { |
---|
23 | unsigned int buffer[4]; /* Holds 4-word result of MD computation */ |
---|
24 | unsigned char count[8]; /* Number of bits processed so far */ |
---|
25 | unsigned int done; /* Nonzero means MD computation finished */ |
---|
26 | } MD4_CTX; |
---|
27 | |
---|
28 | /* MD4Init(MD4_CTX *) |
---|
29 | ** Initialize the MD4_CTX prepatory to doing a message digest |
---|
30 | ** computation. |
---|
31 | */ |
---|
32 | extern void MD4Init __P((MD4_CTX *MD)); |
---|
33 | |
---|
34 | /* MD4Update(MD,X,count) |
---|
35 | ** Input: X -- a pointer to an array of unsigned characters. |
---|
36 | ** count -- the number of bits of X to use (an unsigned int). |
---|
37 | ** Updates MD using the first "count" bits of X. |
---|
38 | ** The array pointed to by X is not modified. |
---|
39 | ** If count is not a multiple of 8, MD4Update uses high bits of |
---|
40 | ** last byte. |
---|
41 | ** This is the basic input routine for a user. |
---|
42 | ** The routine terminates the MD computation when count < 512, so |
---|
43 | ** every MD computation should end with one call to MD4Update with a |
---|
44 | ** count less than 512. Zero is OK for a count. |
---|
45 | */ |
---|
46 | extern void MD4Update __P((MD4_CTX *MD, unsigned char *X, unsigned int count)); |
---|
47 | |
---|
48 | /* MD4Print(MD) |
---|
49 | ** Prints message digest buffer MD as 32 hexadecimal digits. |
---|
50 | ** Order is from low-order byte of buffer[0] to high-order byte |
---|
51 | ** of buffer[3]. |
---|
52 | ** Each byte is printed with high-order hexadecimal digit first. |
---|
53 | */ |
---|
54 | extern void MD4Print __P((MD4_CTX *)); |
---|
55 | |
---|
56 | /* MD4Final(buf, MD) |
---|
57 | ** Returns message digest from MD and terminates the message |
---|
58 | ** digest computation. |
---|
59 | */ |
---|
60 | extern void MD4Final __P((unsigned char *, MD4_CTX *)); |
---|
61 | |
---|
62 | /* |
---|
63 | ** End of md4.h |
---|
64 | ****************************(cut)***********************************/ |
---|