public string ExportXML(string type)
 {
     if (type == "public_key")
     {
         return(XmlParser.CreatePublicKeyXml(saveDirectory, rsa.getPublicKey()));
     }
     else if (type == "message")
     {
         return(XmlParser.CreateMessageXml(saveDirectory, encryptedMessage));
     }
     throw new NotImplementedException();
 }