Encryption Wizard

Encryption Wizard (EW) is a Java file and folder encryptor for protection of sensitive information.  The Encryption Wizard encrypts all file types for data-at-rest and data-in-transit protection.  Without installation or elevated privileges, EW runs on Windows, Mac, Linux, Solaris, and other computers with Sun Java.  Behind its simple drag-n-drop interface, EW offers 128-bit AES encryption, SHA-256 hashing, searchable metadata, archives, compression, and secure deleting.

http://www.spi.dod.mil/ewizard.htm