cross plattform encryption

["Boris Fabbro" <bf.fong () prodomo net>]

hi everybody,

i'm a linux user using encryption with mounting over a loopback-device for
file-containers and whole partitions. something like:

<snip>
                $MODPROBE cryptoloop
                $MODPROBE twofish
                /sbin/losetup -e twofish256 /dev/loop7 "$CRYPTFILE"
                /bin/mount -t ext2 /dev/loop7 "$MOUNTPOINT"
</snip>

i'm very happy with this solution, because it work with any linux-distro.
but i want access (rw) my encrypted data also, when i boot windows (xp).
from an academic view, this should be possible. the crypt-algorithm is
available, the filesystem accessible (i could also use fat32). but i don't
know, if there are any free implentation for this task for windows
(despite google).

can you help me?
are there (free) cross plattform solutions at all?

kind regards,
boris