GnuPG (The GNU Privacy Guard) is a tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440.
GnuPG is part of the Ports Collection.
We strongly recomend you generate any keys on a local computer and not on a Virtual Private Server. GnuPG tends to be very picky about the quality of random numbers when generating keys.
Want to learn more about GnuPG? See the following: