/**
  * Verifies the received key sent by the remote server. This server is trying to generate an
  * outgoing connection to the remote server and the remote server is reusing an incoming
  * connection for validating the key.
  *
  * @param doc the received Element that contains the key to verify.
  */
 public void verifyReceivedKey(Element doc) {
   ServerDialback.verifyReceivedKey(doc, getConnection());
 }