The OpenPGP addon adds the ability to automate the encryption and decryption of files following the OpenPGP standard. The Enterprise edition is a prerequisite for this addon.
Encrypt and Sign
Encrypt files with the recipient's public key and optionally sign files with the sender's private key before uploading. A file extension like .pgp can be added to the encrypted files.
Decrypt files with your proviate key after downloading. The decryption can be limited to files which match a specific file pattern like *.pgp.