From owner-freebsd-fs Fri Sep 29 10: 3:34 2000 Delivered-To: freebsd-fs@freebsd.org Received: from cs.columbia.edu (cs.columbia.edu [128.59.16.20]) by hub.freebsd.org (Postfix) with ESMTP id DAF9C37B423 for ; Fri, 29 Sep 2000 10:03:31 -0700 (PDT) Received: from shekel.mcl.cs.columbia.edu (shekel.mcl.cs.columbia.edu [128.59.18.15]) by cs.columbia.edu (8.9.3/8.9.3) with ESMTP id NAA25759; Fri, 29 Sep 2000 13:03:27 -0400 (EDT) Received: (from ezk@localhost) by shekel.mcl.cs.columbia.edu (8.9.3/8.9.3) id NAA29170; Fri, 29 Sep 2000 13:03:26 -0400 (EDT) Date: Fri, 29 Sep 2000 13:03:26 -0400 (EDT) Message-Id: <200009291703.NAA29170@shekel.mcl.cs.columbia.edu> From: Erez Zadok To: Terry Lambert Cc: kuku@gilberto.physik.rwth-aachen.de (Christoph Kukulies), freebsd-fs@FreeBSD.ORG Subject: Re: crypto fs? In-reply-to: Your message of "Thu, 28 Sep 2000 08:36:43 -0000." <200009280836.BAA11788@usr02.primenet.com> Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org In message <200009280836.BAA11788@usr02.primenet.com>, Terry Lambert writes: > > Is there an implementation of the crypto filesystem for FreeBSD? > > > > Such that a disk that falls into hands of anyone not knowing > > the secret key cannot be decyphered in the duration of the universe? > > Sorry for the latency on the reply. > > Yes, several students of John Heidemann's at UCLA built a crypto > FS; they have also built a compressing FS. Actually they never got a stackable compression f/s built or working. I asked John about his SOSP15 paper. He told me that they had a low-level block-style compression prototype instead. Mine in the only known (so far :-) working stackable compression f/s. My templates (Linux only) can do arbitrary size-changing f/s: I have a working gzipfs, uuencodefs, etc. See http://www.cs.columbia.edu/~ezk/research/fist/ for code and papers. Cheers, Erez. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message