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 ** ********************************************************************
12 # if defined(__STDC__) || defined(__GNUC__)
20 /* MDstruct is the data structure for a message digest computation.
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 */
29 ** Initialize the MD4_CTX prepatory to doing a message digest
32 extern void MD4Init __P((MD4_CTX *MD));
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
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.
46 extern void MD4Update __P((MD4_CTX *MD, unsigned char *X, unsigned int count));
49 ** Prints message digest buffer MD as 32 hexadecimal digits.
50 ** Order is from low-order byte of buffer[0] to high-order byte
52 ** Each byte is printed with high-order hexadecimal digit first.
54 extern void MD4Print __P((MD4_CTX *));
57 ** Returns message digest from MD and terminates the message
58 ** digest computation.
60 extern void MD4Final __P((unsigned char *, MD4_CTX *));
64 ****************************(cut)***********************************/