des_generic.c File Reference

#include <asm/byteorder.h>
#include <linux/bitops.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/crypto.h>
#include <linux/types.h>
#include <crypto/des.h>

Go to the source code of this file.

Data Structures
struct	des_ctx
struct	des3_ede_ctx

Macros
#define	ROL(x, r)   ((x) = rol32((x), (r)))
#define	ROR(x, r)   ((x) = ror32((x), (r)))
#define	IP(L, R, T)
#define	FP(L, R, T)
#define	ROUND(L, R, A, B, K, d)
#define	T1(x)   pt[2 * (x) + 0]
#define	T2(x)   pt[2 * (x) + 1]
#define	T3(x)   pt[2 * (x) + 2]
#define	T4(x)   pt[2 * (x) + 3]
#define	DES_PC2(a, b, c, d)   (T4(d) | T3(c) | T2(b) | T1(a))

Functions
unsigned long	des_ekey (u32 *pe, const u8 *k)
	EXPORT_SYMBOL_GPL (des_ekey)
	MODULE_ALIAS ("des3_ede")
	module_init (des_generic_mod_init)
	module_exit (des_generic_mod_fini)
	MODULE_LICENSE ("GPL")
	MODULE_DESCRIPTION ("DES & Triple DES EDE Cipher Algorithms")
	MODULE_AUTHOR ("Dag Arne Osvik <da@osvik.no>")
	MODULE_ALIAS ("des")

Macro Definition Documentation

#define DES_PC2	(		a,
			b,
			c,
			d
	)		(T4(d) | T3(c) | T2(b) | T1(a))

Definition at line 617 of file des_generic.c.

#define FP	(		L,
			R,
			T
	)

Definition at line 557 of file des_generic.c.

#define IP	(		L,
			R,
			T
	)

Definition at line 524 of file des_generic.c.

#define ROL	(		x,
			r
	)		((x) = rol32((x), (r)))

Definition at line 25 of file des_generic.c.

#define ROR	(		x,
			r
	)		((x) = ror32((x), (r)))

Definition at line 26 of file des_generic.c.

#define ROUND	(		L,
			R,
			A,
			B,
			K,
			d
	)

Value:

B = K[0];           A = K[1];   K += d; \
    B ^= R;             A ^= R;         \
    B &= 0x3f3f3f3f;        ROR(A, 4);      \
    L ^= S8[0xff & B];      A &= 0x3f3f3f3f;    \
    L ^= S6[0xff & (B >> 8)];   B >>= 16;       \
    L ^= S7[0xff & A];                  \
    L ^= S5[0xff & (A >> 8)];   A >>= 16;       \
    L ^= S4[0xff & B];                  \
    L ^= S2[0xff & (B >> 8)];               \
    L ^= S3[0xff & A];                  \
    L ^= S1[0xff & (A >> 8)];

Definition at line 590 of file des_generic.c.

#define T1

(

x

)

pt[2 * (x) + 0]

Definition at line 612 of file des_generic.c.

#define T2

(

x

)

pt[2 * (x) + 1]

Definition at line 613 of file des_generic.c.

#define T3

(

x

)

pt[2 * (x) + 2]

Definition at line 614 of file des_generic.c.

#define T4

(

x

)

pt[2 * (x) + 3]

Definition at line 615 of file des_generic.c.

Function Documentation

unsigned long des_ekey	(	u32 *	pe,
		const u8 *	k
	)

Definition at line 631 of file des_generic.c.

EXPORT_SYMBOL_GPL

(

des_ekey

)

MODULE_ALIAS

(

"des3_ede"

)

MODULE_ALIAS

(

"des"

)

MODULE_AUTHOR

(

"Dag Arne Osvik <da@osvik.no>"

)

MODULE_DESCRIPTION

(

"DES & Triple DES EDE Cipher Algorithms"

)

module_exit

(

des_generic_mod_fini

)

module_init

(

des_generic_mod_init

)

MODULE_LICENSE

(

"GPL"

)