public function addKeyIos($title, $cert, $profile, $options = array())
    {
        $defaults = array(
            'title' => $title,
            'cert' => $this->file($cert),
            'profile' => $this->file($profile),
            // 'password' => '',
        );

        $options = array_merge($defaults, $options);

        return $this->addKeyPlatform(self::IOS, $options);
    }