SimpleDES.cpp File Reference

#include <zeusbase/Security/SimpleDES.h>

Defines
#define	BitSet(x, y)   ( ((y) >> (x)) & 0x1)
#define	p10(x)
#define	p8(x)
#define	p4(x)
#define	ip(x)
#define	ipInv(x)
#define	ep(x)
#define	RIGHT_5BIT(x)   (x & 0x1F)
#define	LEFT_5BIT(x)   ((x >> 5) & 0x1F)
#define	RIGHT_4BIT(x)   (x & 0x0F)
#define	LEFT_4BIT(x)   ((x >> 4) & 0x0F)
#define	ROTLEFT_5(x, y)   (((x << y) | (x >> (5-y))) & 0x1F)
#define	SWAP_4BITS(x)   (((x << 4) & 0xF0) | ((x >> 4) & 0x0F))

---

Define Documentation

#define BitSet	(		x,
			y
	)		( ((y) >> (x)) & 0x1)

#define ep

(

x )

Value:

( (BitSet(0,x) << 7) | \
                 (BitSet(3,x) << 6) | \
                 (BitSet(2,x) << 5) | \
                 (BitSet(1,x) << 4) | \
                 (BitSet(2,x) << 3) | \
                 (BitSet(1,x) << 2) | \
                 (BitSet(0,x) << 1) | \
                  BitSet(3,x) )

#define ip

(

x )

Value:

( (BitSet(6,x) << 7) | \
                 (BitSet(2,x) << 6) | \
                 (BitSet(5,x) << 5) | \
                 (BitSet(7,x) << 4) | \
                 (BitSet(4,x) << 3) | \
                 (BitSet(0,x) << 2) | \
                 (BitSet(3,x) << 1) | \
                  BitSet(1,x) )

#define ipInv

(

x )

Value:

((BitSet(4,x) << 7) | \
                 (BitSet(7,x) << 6) | \
                 (BitSet(5,x) << 5) | \
                 (BitSet(3,x) << 4) | \
                 (BitSet(1,x) << 3) | \
                 (BitSet(6,x) << 2) | \
                 (BitSet(0,x) << 1) | \
                  BitSet(2,x) )

#define LEFT_4BIT

(

x )

((x >> 4) & 0x0F)

#define LEFT_5BIT

(

x )

((x >> 5) & 0x1F)

#define p10

(

x )

Value:

( (BitSet(7,x) << 9) | \
                 (BitSet(5,x) << 8) | \
                 (BitSet(8,x) << 7) | \
                 (BitSet(3,x) << 6) | \
                 (BitSet(6,x) << 5) | \
                 (BitSet(0,x) << 4) | \
                 (BitSet(9,x) << 3) | \
                 (BitSet(1,x) << 2) | \
                 (BitSet(2,x) << 1) | \
                  BitSet(4,x) )

#define p4

(

x )

Value:

( (BitSet(2,x) << 3) | \
                 (BitSet(0,x) << 2) | \
                 (BitSet(1,x) << 1) | \
                  BitSet(3,x) )

#define p8

(

x )

Value:

( (BitSet(4,x) << 7) | \
                 (BitSet(7,x) << 6) | \
                 (BitSet(3,x) << 5) | \
                 (BitSet(6,x) << 4) | \
                 (BitSet(2,x) << 3) | \
                 (BitSet(5,x) << 2) | \
                 (BitSet(0,x) << 1) | \
                  BitSet(1,x) )

#define RIGHT_4BIT

(

x )

(x & 0x0F)

#define RIGHT_5BIT

(

x )

(x & 0x1F)

#define ROTLEFT_5	(		x,
			y
	)		(((x << y) | (x >> (5-y))) & 0x1F)

#define SWAP_4BITS

(

x )

(((x << 4) & 0xF0) | ((x >> 4) & 0x0F))