After a number of months forgetting about this issue I decided to come back to it. My task was to find an encryption that I could put on a USB flash drive and use it for both Windows and Ubuntu. I needed a program that did not need Administrative rights to use if I went to a friends PC, which eliminated TrueCrypt.

From just a Windows stand point the free Rohos Mini Drive fit the bill nicely as you could take it to any Windows machine and run it from the USB flash drive. It did not work though with Ubuntu.

What I have found that can work with Windows and Ubuntu is freeotfe which can access in Windows the encrypted files created in Ubuntu/Linux in the LUKS encryption format.

In order to make this a truly portable solution, I will need to partition the USB flash drive so that I can create a Linux Volume in one partition while I place the freeotfe portable files in the in other partition. This should allow me to access the encrypted volume in either Windows (from any machine) or from Ubuntu.

I will post soon as to how all of this went.

Doc