I first came to know of the TrueCrypt application from a colleague a few years ago, and it’s absolutely brilliant, not to mention free. What I particularly require of this application is the volume feature, where one can create a highly encrypted ‘disc’ of any desirable size and formats, thus allowing one to store sensitive documents, databases, passwords, etc.
This brings me neatly to the use of TrueCrypt with Dropbox. With TrueCrypt, I can create a reasonably sized volume, say 128mb in size, and have this container accessible from all of my Mac and Linux computers, and the odd Microsoft Windows computer. Additionally, all changes made, are synchronised with Dropbox’s functionality once you dismount the volume.
