xtea.h File Reference

Detailed Description

XTEA block cipher (32-bit)

Copyright (C) 2006-2015, ARM Limited, All Rights Reserved SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

This file is part of mbed TLS (https://tls.mbed.org)

Definition in file xtea.h.

#include <config-sl-crypto-all-acceleration.h>
#include <stddef.h>
#include <stdint.h>

Include dependency graph for xtea.h:

Go to the source code of this file.

Data Structures
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
	The data input has an invalid length. 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...

Macro Definition Documentation

#define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH   -0x0028

The data input has an invalid length.

Definition at line 38 of file xtea.h.

#define MBEDTLS_XTEA_DECRYPT   0

Definition at line 36 of file xtea.h.

#define MBEDTLS_XTEA_ENCRYPT   1

Definition at line 35 of file xtea.h.

Function Documentation

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

void mbedtls_xtea_free

(

mbedtls_xtea_context *

ctx

)

Clear XTEA context.

Parameters

ctx	XTEA context to be cleared

void mbedtls_xtea_init

(

mbedtls_xtea_context *

ctx

)

Initialize XTEA context.

Parameters

ctx	XTEA context to be initialized

int mbedtls_xtea_self_test

(

int

verbose

)

Checkup routine.

Returns

0 if successful, or 1 if the test failed

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