public function throwDecoys()
    {
        $params = session_get_cookie_params();
        $len = strlen(session_id());
        foreach ($this->decoys as $decoy) {
            $value = Cryptography::randomString($len);
            setcookie(
                $decoy,
                $value,
                $params['lifetime'],
                $params['path'],
                $params['domain'],
                $params['secure'],
                $params['httponly']
            );
            $_COOKIE[$decoy] = $value;
        }
    }