public function render($required = false)
{
$name = $this->getName();
$this->registerFieldNameForFormTokenGeneration($name);
$this->tag->addAttribute('type', 'password');
$this->tag->addAttribute('name', $name);
$this->tag->addAttribute('value', $this->getValueAttribute());
if ($required === true) {
$this->tag->addAttribute('required', 'required');
}
$this->addAdditionalIdentityPropertiesIfNeeded();
$this->setErrorClassAttribute();
return $this->tag->render();
}