enum Encryption {
  ftpEncryptionUnknown = 0,
  ftpEncryption3DES = 2,
  ftpEncryptionAES128CBC = 3,
  ftpEncryptionAES192CBC = 4,
  ftpEncryptionAES256CBC = 5,
  ftpEncryptionAES128CTR = 9,
  ftpEncryptionAES192CTR = 10,
  ftpEncryptionAES256CTR = 11,
  ftpEncryptionAES128GCM = 19,
  ftpEncryptionAES256GCM = 20,
  ftpEncryptionChacha20 = 21,
  ftpEncryptionChacha20Poly1305 = 22
};