1/* $Id: md4.h,v 1.1.1.1 2008/10/15 03:31:22 james26_jang Exp $ */ 2 3#ifndef _MD4_H_ 4#define _MD4_H_ 5 6/* 7 * md4.h, copied from src/router/ppp/pppd to src/include/bcmcrypto for general use 8 * 9 * $Id: md4.h,v 1.1.1.1 2008/10/15 03:31:22 james26_jang Exp $ 10 * 11** ******************************************************************** 12** md4.h -- Header file for implementation of ** 13** MD4 Message Digest Algorithm ** 14** Updated: 2/13/90 by Ronald L. Rivest ** 15** (C) 1990 RSA Data Security, Inc. ** 16** ******************************************************************** 17*/ 18 19#ifndef __P 20# if defined(__STDC__) || defined(__GNUC__) 21# define __P(x) x 22# else 23# define __P(x) () 24# endif 25#endif 26 27 28/* MDstruct is the data structure for a message digest computation. 29*/ 30typedef struct { 31 unsigned int buffer[4]; /* Holds 4-word result of MD computation */ 32 unsigned char count[8]; /* Number of bits processed so far */ 33 unsigned int done; /* Nonzero means MD computation finished */ 34} MD4_CTX; 35 36/* MD4Init(MD4_CTX *) 37** Initialize the MD4_CTX prepatory to doing a message digest 38** computation. 39*/ 40extern void MD4Init __P((MD4_CTX *MD)); 41 42/* MD4Update(MD,X,count) 43** Input: X -- a pointer to an array of unsigned characters. 44** count -- the number of bits of X to use (an unsigned int). 45** Updates MD using the first "count" bits of X. 46** The array pointed to by X is not modified. 47** If count is not a multiple of 8, MD4Update uses high bits of 48** last byte. 49** This is the basic input routine for a user. 50** The routine terminates the MD computation when count < 512, so 51** every MD computation should end with one call to MD4Update with a 52** count less than 512. Zero is OK for a count. 53*/ 54extern void MD4Update __P((MD4_CTX *MD, unsigned char *X, unsigned int count)); 55 56/* MD4Print(MD) 57** Prints message digest buffer MD as 32 hexadecimal digits. 58** Order is from low-order byte of buffer[0] to high-order byte 59** of buffer[3]. 60** Each byte is printed with high-order hexadecimal digit first. 61*/ 62extern void MD4Print __P((MD4_CTX *)); 63 64/* MD4Final(buf, MD) 65** Returns message digest from MD and terminates the message 66** digest computation. 67*/ 68extern void MD4Final __P((unsigned char *, MD4_CTX *)); 69 70/* 71** End of md4.h 72****************************(cut)***********************************/ 73 74#endif /* _MD4_H_ */ 75