public static function version2($ktb, $trackNumber = null)
    {
        $data = new EncryptionData();
        $data->version = '02';
        $data->trackNumber = $trackNumber;
        $data->ktb = $ktb;
        return $data;
    }
public static function version2($ktb, $trackNumber = null)
    {
        $data = new EncryptionData();
        $data->version = '02';
        $data->trackNumber = $trackNumber;
        $data->ktb = $ktb;
        return $data;
    }
public static function version2 ( $ ktb , $ trackNumber = null ) { $ data = new EncryptionData ( ) ; $ data -> version = '02' ; $ data -> trackNumber = $ trackNumber ; $ data -> ktb = $ ktb ; return $ data ; }
Convenience method for creating version `02` encryption data.

@param string $ktb
@param string $trackNumber

@return EncryptionData
Convenience method for creating version 02 encryption data .