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 ** ********************************************************************
11 /* MDstruct is the data structure for a message digest computation.
14 unsigned int buffer[4]; /* Holds 4-word result of MD computation */
15 unsigned char count[8]; /* Number of bits processed so far */
16 unsigned int done; /* Nonzero means MD computation finished */
20 ** Initialize the MD4_CTX prepatory to doing a message digest
23 extern void MD4Init(MD4_CTX *MD);
25 /* MD4Update(MD,X,count)
26 ** Input: X -- a pointer to an array of unsigned characters.
27 ** count -- the number of bits of X to use (an unsigned int).
28 ** Updates MD using the first "count" bits of X.
29 ** The array pointed to by X is not modified.
30 ** If count is not a multiple of 8, MD4Update uses high bits of
32 ** This is the basic input routine for a user.
33 ** The routine terminates the MD computation when count < 512, so
34 ** every MD computation should end with one call to MD4Update with a
35 ** count less than 512. Zero is OK for a count.
37 extern void MD4Update(MD4_CTX *MD, unsigned char *X, unsigned int count);
40 ** Prints message digest buffer MD as 32 hexadecimal digits.
41 ** Order is from low-order byte of buffer[0] to high-order byte
43 ** Each byte is printed with high-order hexadecimal digit first.
45 extern void MD4Print(MD4_CTX *);
48 ** Returns message digest from MD and terminates the message
49 ** digest computation.
51 extern void MD4Final(unsigned char *, MD4_CTX *);
55 ****************************(cut)***********************************/