twofish_generic.c File Reference

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

Go to the source code of this file.

Macros
#define	G1(a)
#define	G2(b)
#define	ENCROUND(n, a, b, c, d)
#define	DECROUND(n, a, b, c, d)
#define	ENCCYCLE(n)
#define	DECCYCLE(n)
#define	INPACK(n, x, m)   x = le32_to_cpu(src[n]) ^ ctx->w[m]
#define	OUTUNPACK(n, x, m)

Functions
	module_init (twofish_mod_init)
	module_exit (twofish_mod_fini)
	MODULE_LICENSE ("GPL")
	MODULE_DESCRIPTION ("Twofish Cipher Algorithm")
	MODULE_ALIAS ("twofish")

Macro Definition Documentation

#define DECCYCLE

(

n

)

Value:

DECROUND (2 * (n) + 1, c, d, a, b); \
   DECROUND (2 * (n), a, b, c, d)

Definition at line 89 of file twofish_generic.c.

#define DECROUND	(		n,
			a,
			b,
			c,
			d
	)

Value:

x = G1 (a); y = G2 (b); \
   x += y; y += x; \
   (d) ^= y + ctx->k[2 * (n) + 1]; \
   (d) = ror32((d), 1); \
   (c) = rol32((c), 1); \
   (c) ^= (x + ctx->k[2 * (n)])

Definition at line 74 of file twofish_generic.c.

#define ENCCYCLE

(

n

)

Value:

ENCROUND (2 * (n), a, b, c, d); \
   ENCROUND (2 * (n) + 1, c, d, a, b)

Definition at line 85 of file twofish_generic.c.

#define ENCROUND	(		n,
			a,
			b,
			c,
			d
	)

Value:

x = G1 (a); y = G2 (b); \
   x += y; y += x + ctx->k[2 * (n) + 1]; \
   (c) ^= x + ctx->k[2 * (n)]; \
   (c) = ror32((c), 1); \
   (d) = rol32((d), 1) ^ y

Definition at line 67 of file twofish_generic.c.

#define G1

(

a

)

Value:

(ctx->s[0][(a) & 0xFF]) ^ (ctx->s[1][((a) >> 8) & 0xFF]) \
   ^ (ctx->s[2][((a) >> 16) & 0xFF]) ^ (ctx->s[3][(a) >> 24])

Definition at line 54 of file twofish_generic.c.

#define G2

(

b

)

Value:

(ctx->s[1][(b) & 0xFF]) ^ (ctx->s[2][((b) >> 8) & 0xFF]) \
   ^ (ctx->s[3][((b) >> 16) & 0xFF]) ^ (ctx->s[0][(b) >> 24])

Definition at line 58 of file twofish_generic.c.

#define INPACK	(		n,
			x,
			m
	)		x = le32_to_cpu(src[n]) ^ ctx->w[m]

Definition at line 99 of file twofish_generic.c.

#define OUTUNPACK	(		n,
			x,
			m
	)

Value:

x ^= ctx->w[m]; \
   dst[n] = cpu_to_le32(x)

Definition at line 102 of file twofish_generic.c.

Function Documentation

MODULE_ALIAS

(

"twofish"

)

MODULE_DESCRIPTION

(

"Twofish Cipher Algorithm"

)

module_exit

(

twofish_mod_fini

)

module_init

(

twofish_mod_init

)

MODULE_LICENSE

(

"GPL"

)