/**
* Decrypts the container data with the given key
* or returns false if the key is not valid.
*
* @param McryptContainer $container
* @param string $key
* @return bool|string
*/
public function decrypt(McryptContainer $container, $key)
{
$data = rtrim(mcrypt_decrypt($container->getCipher(), $this->getKeyHash($key, $container->getPasswordSalt()), $container->getData(), $this->mode, $container->getInitializationVector()), "");
$checkSum = substr($data, 0, 40);
$data = substr($data, 40);
if (sha1($data) != $checkSum) {
return false;
}
return $data;
}
/**
* @return McryptContainer
*/
public function getContainer()
{
$container = new McryptContainer();
$container->setData($this->data);
$container->setPasswordSalt($this->passwordSalt);
$container->setInitializationVector($this->initializationVector);
$container->setCipher($this->cipher);
return $container;
}