SMADRET Means Always Do Really Encrypt Talk (or Find A Better Acronym). It is a SOCKS 4-proxy that listens on localhost and acts as a middleman between your chat client and the outside world, intercepting messages and performing PGP-encryption using GnuP
GAIM encryption plugin using GPG (PGP clone). It works transparently and smoothly. Automatically establishes secure conversations with other enabled users, passes keys (if enabled) and eventually will allow you to specify your own keys to use.