mdfour.c File Reference

Macros
#define	F(X, Y, Z)   (((X)&(Y)) | ((~(X))&(Z)))
#define	G(X, Y, Z)   (((X)&(Y)) | ((X)&(Z)) | ((Y)&(Z)))
#define	H(X, Y, Z)   ((X)^(Y)^(Z))
#define	lshift(x, s)   ((((x)<<(s))&0xFFFFFFFF) | (((x)>>(32-(s)))&0xFFFFFFFF))
#define	ROUND1(a, b, c, d, k, s)   a = lshift(a + F(b,c,d) + X[k], s)
#define	ROUND2(a, b, c, d, k, s)   a = lshift(a + G(b,c,d) + X[k] + 0x5A827999,s)
#define	ROUND3(a, b, c, d, k, s)   a = lshift(a + H(b,c,d) + X[k] + 0x6ED9EBA1,s)

Functions
void	mdfour (unsigned char *out, const unsigned char *in, int n)
void	mdfour_begin (struct mdfour *md)
void	mdfour_result (struct mdfour *md, unsigned char *out)
void	mdfour_update (struct mdfour *md, const unsigned char *in, int n)

Macro Definition Documentation

#define F	(		X,
			Y,
			Z
	)		(((X)&(Y)) | ((~(X))&(Z)))

#define G	(		X,
			Y,
			Z
	)		(((X)&(Y)) | ((X)&(Z)) | ((Y)&(Z)))

#define H	(		X,
			Y,
			Z
	)		((X)^(Y)^(Z))

#define lshift	(		x,
			s
	)		((((x)<<(s))&0xFFFFFFFF) | (((x)>>(32-(s)))&0xFFFFFFFF))

#define ROUND1	(		a,
			b,
			c,
			d,
			k,
			s
	)		a = lshift(a + F(b,c,d) + X[k], s)

#define ROUND2	(		a,
			b,
			c,
			d,
			k,
			s
	)		a = lshift(a + G(b,c,d) + X[k] + 0x5A827999,s)

#define ROUND3	(		a,
			b,
			c,
			d,
			k,
			s
	)		a = lshift(a + H(b,c,d) + X[k] + 0x6ED9EBA1,s)