This event is fired when a decryption password is needed.
Object Oriented Interface
public function firePasswordNeeded($param);
secureblackbox_cryptokeymanager_register_callback($res, 3, array($this, 'firePasswordNeeded'));
The class fires this event when a password is needed to decrypt a certificate or a private key.
In the handler of this event, assign the password to the Password parameter, or set Cancel to true to abort the operation.
The NeededFor parameter identifies the certificate for which the password is requested.