/* This code is from rfc1186. */ /* ** ******************************************************************** ** 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 int32 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(); /* ** End of md4.h */