xtea.h

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#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 */