xtea.h File Reference

XTEA block cipher (32-bit) More...

#include "config.h"
#include <stddef.h>
#include <stdint.h>

Include dependency graph for xtea.h:

Go to the source code of this file.

Classes
struct	mbedtls_xtea_context
	XTEA context structure. More...

Macros
#define	MBEDTLS_XTEA_ENCRYPT   1
#define	MBEDTLS_XTEA_DECRYPT   0
#define	MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH   -0x0028
#define	MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED   -0x0029

Typedefs
typedef struct mbedtls_xtea_context	mbedtls_xtea_context
	XTEA context structure. More...

Functions
void	mbedtls_xtea_init (mbedtls_xtea_context *ctx)
	Initialize XTEA context. More...
void	mbedtls_xtea_free (mbedtls_xtea_context *ctx)
	Clear XTEA context. More...
void	mbedtls_xtea_setup (mbedtls_xtea_context *ctx, const unsigned char key[16])
	XTEA key schedule. More...
int	mbedtls_xtea_crypt_ecb (mbedtls_xtea_context *ctx, int mode, const unsigned char input[8], unsigned char output[8])
	XTEA cipher function. More...
int	mbedtls_xtea_self_test (int verbose)
	Checkup routine. More...

Detailed Description

XTEA block cipher (32-bit)

Macro Definition Documentation

MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED

#define MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED   -0x0029

XTEA hardware accelerator failed.

MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH

#define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH   -0x0028

The data input has an invalid length.

MBEDTLS_XTEA_DECRYPT

#define MBEDTLS_XTEA_DECRYPT   0

MBEDTLS_XTEA_ENCRYPT

#define MBEDTLS_XTEA_ENCRYPT   1

Typedef Documentation

mbedtls_xtea_context

typedef struct mbedtls_xtea_context mbedtls_xtea_context

XTEA context structure.

Function Documentation

mbedtls_xtea_crypt_ecb()

int mbedtls_xtea_crypt_ecb	(	mbedtls_xtea_context *	ctx,
		int	mode,
		const unsigned char	input[8],
		unsigned char	output[8]
	)

XTEA cipher function.

Parameters

ctx	XTEA context
mode	MBEDTLS_XTEA_ENCRYPT or MBEDTLS_XTEA_DECRYPT
input	8-byte input block
output	8-byte output block

Returns

0 if successful

mbedtls_xtea_free()

void mbedtls_xtea_free

(

mbedtls_xtea_context *

ctx

)

Clear XTEA context.

Parameters

ctx	XTEA context to be cleared

mbedtls_xtea_init()

void mbedtls_xtea_init

(

mbedtls_xtea_context *

ctx

)

Initialize XTEA context.

Parameters

ctx	XTEA context to be initialized

mbedtls_xtea_self_test()

int mbedtls_xtea_self_test

(

int

verbose

)

Checkup routine.

Returns

0 if successful, or 1 if the test failed

mbedtls_xtea_setup()

void mbedtls_xtea_setup	(	mbedtls_xtea_context *	ctx,
		const unsigned char	key[16]
	)

XTEA key schedule.

Parameters

ctx	XTEA context to be initialized
key	the secret key