csiphash.c File Reference

#include <stdint.h>
#include <assert.h>
#include <endian.h>

Include dependency graph for csiphash.c:

Macros
#define	_le64toh(x)   le64toh(x)
#define	ROTATE(x, b)   (uint64_t)( ((x) << (b)) | ( (x) >> (64 - (b))) )
#define	HALF_ROUND(a, b, c, d, s, t)
#define	DOUBLE_ROUND(v0, v1, v2, v3)

Functions
uint64_t	siphash24 (const void *src, unsigned long src_sz, const char key[16])

Macro Definition Documentation

_le64toh

#define _le64toh

(

x

)

le64toh(x)

DOUBLE_ROUND

#define DOUBLE_ROUND	(		v0,
			v1,
			v2,
			v3
	)

Value:

HALF_ROUND(v0,v1,v2,v3,13,16);          \
        HALF_ROUND(v2,v1,v0,v3,17,21);          \
        HALF_ROUND(v0,v1,v2,v3,13,16);          \
        HALF_ROUND(v2,v1,v0,v3,17,21);

HALF_ROUND

#define HALF_ROUND	(		a,
			b,
			c,
			d,
			s,
			t
	)

Value:

a += b; c += d;                         \
        b = ROTATE(b, s) ^ a;                   \
        d = ROTATE(d, t) ^ c;                   \
        a = ROTATE(a, 32);

ROTATE

#define ROTATE	(		x,
			b
	)		(uint64_t)( ((x) << (b)) | ( (x) >> (64 - (b))) )

Function Documentation

siphash24()

uint64_t siphash24	(	const void *	src,
		unsigned long	src_sz,
		const char	key[16]
	)