lib64polarssl-devel/apidoc/xtea_8h_source.html

#ifndef POLARSSL_XTEA_H

#define POLARSSL_XTEA_H


#if !defined(POLARSSL_CONFIG_FILE)

#include "config.h"

#else

#include POLARSSL_CONFIG_FILE

#endif


#include <string.h>


#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)

#include <basetsd.h>

typedef UINT32 uint32_t;

#else

#include <inttypes.h>

#endif


#define XTEA_ENCRYPT     1

#define XTEA_DECRYPT     0


#define POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH             -0x0028

#if !defined(POLARSSL_XTEA_ALT)

// Regular implementation

//


#ifdef __cplusplus

extern "C" {

#endif


typedef struct

{

    uint32_t k[4];

}

xtea_context;


void xtea_init( xtea_context *ctx );


void xtea_free( xtea_context *ctx );


void xtea_setup( xtea_context *ctx, const unsigned char key[16] );


int xtea_crypt_ecb( xtea_context *ctx,

                    int mode,

                    const unsigned char input[8],

                    unsigned char output[8] );


#if defined(POLARSSL_CIPHER_MODE_CBC)

int xtea_crypt_cbc( xtea_context *ctx,

                    int mode,

                    size_t length,

                    unsigned char iv[8],

                    const unsigned char *input,

                    unsigned char *output);

#endif /* POLARSSL_CIPHER_MODE_CBC */


#ifdef __cplusplus

}

#endif


#else  /* POLARSSL_XTEA_ALT */

#include "xtea_alt.h"

#endif /* POLARSSL_XTEA_ALT */


#ifdef __cplusplus

extern "C" {

#endif


int xtea_self_test( int verbose );


#ifdef __cplusplus

}

#endif


#endif /* xtea.h */

config.h
Configuration options (set of defines)

xtea_context
XTEA context structure.
Definition: xtea.h:62

xtea_self_test
int xtea_self_test(int verbose)
Checkup routine.

xtea_crypt_cbc
int xtea_crypt_cbc(xtea_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output)
XTEA CBC cipher function.

xtea_free
void xtea_free(xtea_context *ctx)
Clear XTEA context.

xtea_crypt_ecb
int xtea_crypt_ecb(xtea_context *ctx, int mode, const unsigned char input[8], unsigned char output[8])
XTEA cipher function.

xtea_init
void xtea_init(xtea_context *ctx)
Initialize XTEA context.

xtea_setup
void xtea_setup(xtea_context *ctx, const unsigned char key[16])
XTEA key schedule.