docs: public void createUser(User user, String password){
          ProtocolHeader header = new ProtocolHeader();
          header.setType(ProtocolType.CreateUser);
          byte[] secret = null;
          if(password != null && ! password.isEmpty()){
              secret = ObfuscatUtil.base64Encode(password.getBytes());
          }
          CreateUserProtocol p = new CreateUserProtocol(user, secret);
  
          connection.submitRequest(header, p, null);
      }