This video shows how to set up and use OpenPGP in JSCAPE MFT Server. OpenPGP allows you to encrypt and decrypt files for increased security. If you haven't already, you may want to watch Installing Additional Libraries Needed for OpenPGP/SFTP Ciphers on JSCAPE MFT Server.
References
OpenPGP on Wikipedia
Installing Additional Libraries Needed for OpenPGP/SFTP Ciphers on JSCAPE MFT Server