dsp_blowfish.c File Reference

#include <linux/mISDNif.h>
#include <linux/mISDNdsp.h>
#include "core.h"
#include "dsp.h"

Go to the source code of this file.

Data Structures
struct	bf_ctx

Macros
#define	GET32_3(x)   (((x) & 0xff))
#define	GET32_2(x)   (((x) >> (8)) & (0xff))
#define	GET32_1(x)   (((x) >> (16)) & (0xff))
#define	GET32_0(x)   (((x) >> (24)) & (0xff))
#define	bf_F(x)
#define	EROUND(a, b, n)   do { b ^= P[n]; a ^= bf_F(b); } while (0)
#define	DROUND(a, b, n)   do { a ^= bf_F(b); b ^= P[n]; } while (0)

Functions
void	dsp_bf_encrypt (struct dsp *dsp, u8 *data, int len)
void	dsp_bf_decrypt (struct dsp *dsp, u8 *data, int len)
int	dsp_bf_init (struct dsp *dsp, const u8 *key, uint keylen)
void	dsp_bf_cleanup (struct dsp *dsp)

Macro Definition Documentation

#define bf_F

(

x

)

Value:

(((S[GET32_0(x)] + S[256 + GET32_1(x)]) ^   \
          S[512 + GET32_2(x)]) + S[768 + GET32_3(x)])

Definition at line 357 of file dsp_blowfish.c.

#define DROUND	(		a,
			b,
			n
	)		do { a ^= bf_F(b); b ^= P[n]; } while (0)

Definition at line 361 of file dsp_blowfish.c.

#define EROUND	(		a,
			b,
			n
	)		do { b ^= P[n]; a ^= bf_F(b); } while (0)

Definition at line 360 of file dsp_blowfish.c.

#define GET32_0

(

x

)

(((x) >> (24)) & (0xff))

Definition at line 355 of file dsp_blowfish.c.

#define GET32_1

(

x

)

(((x) >> (16)) & (0xff))

Definition at line 354 of file dsp_blowfish.c.

#define GET32_2

(

x

)

(((x) >> (8)) & (0xff))

Definition at line 353 of file dsp_blowfish.c.

#define GET32_3

(

x

)

(((x) & 0xff))

Definition at line 352 of file dsp_blowfish.c.

Function Documentation

void dsp_bf_cleanup

(

struct dsp *

dsp

)

Definition at line 669 of file dsp_blowfish.c.

void dsp_bf_decrypt	(	struct dsp *	dsp,
		u8 *	data,
		int	len
	)

Definition at line 458 of file dsp_blowfish.c.

void dsp_bf_encrypt	(	struct dsp *	dsp,
		u8 *	data,
		int	len
	)

Definition at line 369 of file dsp_blowfish.c.

int dsp_bf_init	(	struct dsp *	dsp,
		const u8 *	key,
		uint	keylen
	)

Definition at line 599 of file dsp_blowfish.c.