Mr. Ruusu, et al.: One has to wonder why the CryptoAPI cannot be made to function in a manner such that loop-aes does with respect to being more modular. If CryptoAPI was modular in the manner that loop-aes was, I think its usage would be much more accepted. Very Respectfully, Stuart Blake Tener, IT3 (E-4), USNR-R, N3GWG Beverly Hills, California VTU 1904G (Volunteer Training Unit) stuart@bh90210.net west coast: (310)-358-0202 P.O. Box 16043, Beverly Hills, CA 90209-2043 east coast: (215)-338-6005 P.O. Box 45859, Philadelphia, PA 19149-5859 Telecopier: (419)-715-6073 fax to email gateway via www.efax.com (it's free!) JOIN THE US NAVY RESERVE, SERVE YOUR COUNTRY, AND BENEFIT FROM IT ALL. Tuesday, March 05, 2002 11:44 AM -----Original Message----- From: linux-crypto-bounce@nl.linux.org [mailto:linux-crypto-bounce@nl.linux.org] On Behalf Of Jari Ruusu Sent: Tuesday, March 05, 2002 11:37 AM To: Newsmail Cc: linux-crypto@nl.linux.org Subject: Re: journaling file systems Newsmail wrote: > I presume device backed loop > device means that the entire device or partition is on the loop device, and > it does not reside in a file. Device backed means using a partition, example: losetup -e AES128 /dev/loop0 /dev/hda4 ^^^^^^^^^ File backed means using a file that resides on some filesystem, example: losetup -e AES128 /dev/loop0 /home/jari/.my-secret-stuff ^^^^^^^^^^^^^^^^^^^^^^^^^^^ > what's up with this write caching thingie. I > cant make a reiserfs filesystem on an encrypted device if I dont disable > write caching? what will be the effect if I dont disable it? If hard disk re-orders writes as a result of write caching, journal and/or data may get corrupted under some circumstances. That applies both to unencrypted and encrypted partitions. > other question: if I remember I read something that there are ways to > compile loop aes to the kernel. is there a way to compile the new > twofish/blowfish/serpent modules to the kernel as well? Yes, if you merge them to your kernel yourself. I prefer to keep them as modules. They are easier to compile for all supported kernels as modules. Regards, Jari Ruusu <jari.ruusu@pp.inet.fi> - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/ - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
