A small encryption / decryption application that we are giving away free of charge.
Version 1.0.00 - RSA only at the moment.
But later versions will have a plug-in system for adding more algorithms.
Secure P2P Instant Messenger running on .NET Framework 2.0. Uses server to store user information (user name, password, email address, friends list, log in state, IP address) in encrypted form. Uses custom designed symmetric encryption algorithm.