-----BEGIN PGP SIGNED MESSAGE----- In article <Pine.LNX.3.91.890918054255.204A-100000@HellSpawn>, Damien Lucifer <root@hellspawn.Berkeley.EDU> wrote:
On Tue, 6 Aug 1996, Ian Goldberg wrote:
This directory contains patches to the Linux kernel to enable encryption and steganography of filesystems. Encryption allows you to have a scrambled partition or file that, with the proper pass phrase, you can mount, just like a normal filesystem. Steganography allows you to hide a filesystem in the low bits of, say, an audio file. You can even combine these two to hide a scrambled filesystem in the low bits of an audio file (see the example, below).
<snip>
So the question on my mind, is can the loop device(s) be multi-threaded? I decided to be clever one evening and moved all my home directories to cfs directories.. unfortunatly when two instances of the same user try to hit their CFS home directory at once, the whole machine goes flubflub and and needs to be rebooted. Single threading didnt seem like such a terrible thing when I installed cfs, but lately its become rather restrictive and ugly to deal with. Please tell me theres a better way. :)
Well, unlike CFS, loop.c is part of the Linux kernel, which is single-threaded, so I guess loop.c is also single-threaded. However, I took care that deadlocks be avoided (mounting a loop device as another loop device (for example, hiding an encrypted filesystem as stego) caused me to think a bit, but I'm fairly confident that it works now). - Ian [For those that missed it, the URL is ftp://ftp.csua.berkeley.edu/pub/cypherpunks/filesystems/linux/index.html mirror site: ftp://csclub.uwaterloo.ca/pub/linux-stego/index.html ] -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMgqEI0ZRiTErSPb1AQGI2gP+Pxq4auOpMSqVvCT9a/LRuj8fUhbmoG95 3hdYYRn/GWRZTK1IcdyUpVnIcHfS6SUz+0l39q/guMKfGGgPOOsWYMpL7rRcffZB ZzZ8lWxO0JCOTPE8NIEuvdI3T+8bnVROeQ9u/YjRPnhMMQaOTUoCclt2fUt2+6YD td9FWFl7Pvc= =d1Am -----END PGP SIGNATURE-----