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/*
** ********************************************************************
** md4.h -- Header file for implementation of                        **
** MD4 Message Digest Algorithm                                      **
** Updated: 2/13/90 by Ronald L. Rivest                              **
** (C) 1990 RSA Data Security, Inc.                                  **
** ********************************************************************
*/

/* MDstruct is the data structure for a message digest computation.
*/
typedef struct {
unsigned int buffer[4]; /* Holds 4-word result of MD computation */
unsigned char count[8]; /* Number of bits processed so far */
unsigned int done;      /* Nonzero means MD computation finished */
} MDstruct, *MDptr;

/* MDbegin(MD)
** Input: MD -- an MDptr
** Initialize the MDstruct prepatory to doing a message digest
** computation.
*/
extern void MDbegin();

/* MDupdate(MD,X,count)
** Input: MD -- an MDptr
**        X -- a pointer to an array of unsigned characters.
**        count -- the number of bits of X to use (an unsigned int).
** Updates MD using the first "count" bits of X.
** The array pointed to by X is not modified.
** If count is not a multiple of 8, MDupdate uses high bits of
** last byte.
** This is the basic input routine for a user.
** The routine terminates the MD computation when count < 512, so
** every MD computation should end with one call to MDupdate with a
** count less than 512.  Zero is OK for a count.
*/
extern void MDupdate();

/* MDprint(MD)
** Input: MD -- an MDptr
** Prints message digest buffer MD as 32 hexadecimal digits.
** Order is from low-order byte of buffer[0] to high-order byte
** of buffer[3].
** Each byte is printed with high-order hexadecimal digit first.
*/
extern void MDprint();

/*
** End of md4.h
****************************(cut)***********************************/

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