md4.h revision 734b6a94890be549309b21156f8ed6d4561cac51
/*
** ********************************************************************
** 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. **
** ********************************************************************
*
* Copyright (c) 2000 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#ifndef __P
# if defined(__STDC__) || defined(__GNUC__)
# define __P(x) x
# else
# define __P(x) ()
# endif
#endif
/* 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 */
} MD4_CTX;
/* MD4Init(MD4_CTX *)
** Initialize the MD4_CTX prepatory to doing a message digest
** computation.
*/
extern void MD4Init __P((MD4_CTX *MD));
/* MD4Update(MD,X,count)
** Input: 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, MD4Update 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 MD4Update with a
** count less than 512. Zero is OK for a count.
*/
extern void MD4Update __P((MD4_CTX *MD, const unsigned char *X,
unsigned int count));
/* MD4Final(buf, MD)
** Returns message digest from MD and terminates the message
** digest computation.
*/
extern void MD4Final __P((unsigned char *, MD4_CTX *));
/*
** End of md4.h
****************************(cut)***********************************/