How to encrypt an USB stick?
I want to encrypt my USB hard disk. And I want to do it with open source software. And I want to use only password for decryption. And I want to decrypt it using an Ubuntu 10.04 LiveCD, with no Internet-connection. And I don't want solutions using, for example, DES with 56 bit. At least AES 256 bit, please!
What is the solution?