PGP (Pretty Good Privacy) provides security for e-mail and data files using a public key encryption. PGP has sophisticated key management, data compression and digital signature capability.

For Further Information

Here is a tutorial for PGP.

Also see the International PGP Home Page

Other documentation on PGP are:

• User's Guide Volume I: Essential Topics.
• User's Guide Volume II: Special Topics.
• PGP and mkPGP (e-mail encryption)