enum SSHAuthentication {
  ftpSSHAuthenticationUnknown = 0,
  ftpSSHAuthenticationNone = 1,
  ftpSSHAuthenticationPassword = 2,
  ftpSSHAuthenticationKeyboardInteractive = 3,
  ftpSSHAuthenticationPublicKey = 4,
  ftpSSHAuthenticationSecurID = 5,
  ftpSSHAuthenticationHostBased = 6,
  ftpSSHAuthenticationGSSAPI = 7
};