TrueCrypt - open source on the fly encryption

I came across this gem after listening to the always excellent "security now" netcast by Steve Gibson and Leo Laporte. (http://www.grc.com/securitynow.htm)

If you store sensitive data on your PC, server or laptop (and who doesn't??!) and are concerned about security you might want to check out an open source solution called "TrueCrypt."

TrueCrypt allows you to set up an encrypted file (or even a hidden partition for the truly paranoid!) and mounts it only if the correct password is presented. Once mounted the file looks like a drive to the OS for on the fly encryption and decryption.

Even under the strongest encryption scheme the speed is very good on my 2.4Ghz P4 laptop.

Supports Windows XP/2000/2003 and *nix.

Very cool stuff and open source!

http://www.truecrypt.org/