public static function encrypt($str)
{
if (Urlcrypt::$key === "") {
throw new Exception('No key provided.');
}
$key = pack('H*', Urlcrypt::$key);
$iv_size = mcrypt_get_iv_size(Urlcrypt::$cipher, Urlcrypt::$mode);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$str = utf8_encode($str);
$ciphertext = mcrypt_encrypt(Urlcrypt::$cipher, $key, $str, Urlcrypt::$mode, $iv);
$ciphertext = $iv . $ciphertext;
return Urlcrypt::encode($ciphertext);
}
public function buildUserLink($retailerID)
{
return 'member.php?uid=' . Urlcrypt::encode($retailerID);
}
private function deo($str)
{
$this->assertEquals($str, Urlcrypt::decode(Urlcrypt::encode($str)));
}
