I'm working on a loop device driver overhaul. It is modular,
and currently supports IDEA and faster CAST-128 encryption.
They only support electronic codebook mode at the moment.
I've also overhauled losetup to allow setting things like the mode,
as well as other new features. Mount gets similar treatment of course.
For a pre-patch, just drop me a message.
-- Andrew E. Mileski mailto:aem@netcom.ca