/* BEGIN_HEADER */
#include "mbedtls/xtea.h"
/* END_HEADER */

/* BEGIN_DEPENDENCIES
 * depends_on:MBEDTLS_XTEA_C
 * END_DEPENDENCIES
 */

/* BEGIN_CASE */
void xtea_encrypt_ecb( char *hex_key_string, char *hex_src_string,
                       char *hex_dst_string )
{
    unsigned char key_str[100];
    unsigned char src_str[100];
    unsigned char dst_str[100];
    unsigned char output[100];
    mbedtls_xtea_context ctx;

    memset(key_str, 0x00, 100);
    memset(src_str, 0x00, 100);
    memset(dst_str, 0x00, 100);
    memset(output, 0x00, 100);

    unhexify( key_str, hex_key_string );
    unhexify( src_str, hex_src_string );

    mbedtls_xtea_setup( &ctx, key_str );
    TEST_ASSERT( mbedtls_xtea_crypt_ecb( &ctx, MBEDTLS_XTEA_ENCRYPT, src_str, output ) == 0 );
    hexify( dst_str, output, 8 );

    TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
}
/* END_CASE */

/* BEGIN_CASE */
void xtea_decrypt_ecb( char *hex_key_string, char *hex_src_string,
                       char *hex_dst_string )
{
    unsigned char key_str[100];
    unsigned char src_str[100];
    unsigned char dst_str[100];
    unsigned char output[100];
    mbedtls_xtea_context ctx;

    memset(key_str, 0x00, 100);
    memset(src_str, 0x00, 100);
    memset(dst_str, 0x00, 100);
    memset(output, 0x00, 100);

    unhexify( key_str, hex_key_string );
    unhexify( src_str, hex_src_string );

    mbedtls_xtea_setup( &ctx, key_str );
    TEST_ASSERT( mbedtls_xtea_crypt_ecb( &ctx, MBEDTLS_XTEA_DECRYPT, src_str, output ) == 0 );
    hexify( dst_str, output, 8 );

    TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
}
/* END_CASE */

/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CBC */
void xtea_encrypt_cbc( char *hex_key_string, char *hex_iv_string,
                       char *hex_src_string, char *hex_dst_string )
{
    unsigned char key_str[100];
    unsigned char src_str[100];
    unsigned char dst_str[100];
    unsigned char iv_str[100];
    unsigned char output[100];
    size_t len;
    mbedtls_xtea_context ctx;

    memset(key_str, 0x00, 100);
    memset(src_str, 0x00, 100);
    memset(dst_str, 0x00, 100);
    memset(iv_str, 0x00, 100);
    memset(output, 0x00, 100);

    unhexify( key_str, hex_key_string );
    unhexify( iv_str, hex_iv_string );
    len = unhexify( src_str, hex_src_string );

    mbedtls_xtea_setup( &ctx, key_str );
    TEST_ASSERT( mbedtls_xtea_crypt_cbc( &ctx, MBEDTLS_XTEA_ENCRYPT, len, iv_str,
                                 src_str, output ) == 0 );
    hexify( dst_str, output, len );

    TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
}
/* END_CASE */

/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CBC */
void xtea_decrypt_cbc( char *hex_key_string, char *hex_iv_string,
                       char *hex_src_string, char *hex_dst_string )
{
    unsigned char key_str[100];
    unsigned char src_str[100];
    unsigned char dst_str[100];
    unsigned char iv_str[100];
    unsigned char output[100];
    size_t len;
    mbedtls_xtea_context ctx;

    memset(key_str, 0x00, 100);
    memset(src_str, 0x00, 100);
    memset(dst_str, 0x00, 100);
    memset(iv_str, 0x00, 100);
    memset(output, 0x00, 100);

    unhexify( key_str, hex_key_string );
    unhexify( iv_str, hex_iv_string );
    len = unhexify( src_str, hex_src_string );

    mbedtls_xtea_setup( &ctx, key_str );
    TEST_ASSERT( mbedtls_xtea_crypt_cbc( &ctx, MBEDTLS_XTEA_DECRYPT, len, iv_str,
                                 src_str, output ) == 0 );
    hexify( dst_str, output, len );

    TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
}
/* END_CASE */

/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
void xtea_selftest()
{
    TEST_ASSERT( mbedtls_xtea_self_test( 1 ) == 0 );
}
/* END_CASE */