What is PGP/GPG encryption?

PGP (Pretty Good Privacy) is a public-key encryption program that has become the most popular standard for email encryption. The "pretty good" bit is meant to be a bit of an ironic understatement.

In addition to encrypting and decrypting email, PGP is used to sign messages so that the receiver can verify both the identity of the sender and the integrity of the content.

PGP uses a private-key that must be kept secret and a public-key that sender and receiver must share. 

GPG (Gnu Privacy Guard) is an independent implementation of the OpenPGP standards.

Setting up PGP/GPG will allow you to:

For more information about PGP/GPG, see the links below.