From: Matthias Urlichs <smurf@smurf.noris.de>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Delete cryptoloop
Date: Thu, 22 Jul 2004 09:43:42 +0200 [thread overview]
Message-ID: <pan.2004.07.22.07.43.41.872460@smurf.noris.de> (raw)
In-Reply-To: <Pine.LNX.4.58.0407212319560.13098@devserv.devel.redhat.com>
Hi, James Morris wrote:
> It would be good if we could get some further review on the issue by an
> independent, well known cryptographer.
Well, I'm not, but ...
AFAIK, the main issue is: If I write some data to the start of block N, I
get a bit pattern. If I write the same data *anywhere* else (the middle of
block N, the start of block M != N, a different on-disk bit pattern must
result.
If there are identical bit patterns, then the system is vulnerable.
Obviously, this vulnerability doesn't depend on whether you're using
cryptoloop or dm-crypt.
--
Matthias Urlichs
next prev parent reply other threads:[~2004-07-22 7:47 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-21 20:16 James Morris
2004-07-21 23:44 ` David S. Miller
2004-07-22 6:00 ` Andrew Morton
2004-07-22 3:30 ` James Morris
2004-07-22 7:43 ` Matthias Urlichs [this message]
2004-07-22 14:14 ` H. Peter Anvin
2004-07-22 14:58 ` Jack Lloyd
2004-07-28 20:24 ` David Wagner
2004-07-29 0:27 ` James Morris
2004-07-29 15:50 ` Christophe Saout
2004-07-29 21:15 ` David Wagner
2004-07-30 13:13 ` Christophe Saout
2004-07-31 0:44 ` David Wagner
2004-07-31 2:05 ` Matt Mackall
2004-07-31 17:29 ` Marc Ballarin
2004-08-02 22:54 ` David Wagner
2004-08-02 23:16 ` James Morris
2004-08-07 16:27 ` Jean-Luc Cooke
2004-07-22 4:26 ` dpf-lkml
2004-07-22 5:22 ` James Morris
2004-07-22 11:58 ` Paul Rolland
2004-07-22 20:40 ` Martin Schlemmer
2004-07-22 8:46 ` Andrew Morton
2004-07-22 6:13 ` Dale Fountain
2004-07-22 6:47 ` Tim Connors
2004-07-22 15:02 ` Petr Baudis
2004-07-22 11:36 ` Aiko Barz
2004-07-24 15:11 ` Andreas Jellinghaus
2004-07-24 15:53 ` gadgeteer
2004-07-29 16:12 ` Andries Brouwer
2004-07-29 17:23 ` James Morris
2004-07-29 19:48 ` Andries Brouwer
2004-07-22 22:13 ` Bill Davidsen
2004-07-24 12:41 ` Fruhwirth Clemens
2004-07-24 16:52 ` Andrew Morton
2004-07-24 14:08 ` Andreas Henriksson
2004-07-24 19:54 ` Paul Jackson
2004-07-27 20:02 ` Bill Davidsen
2004-07-25 11:42 ` Jari Ruusu
2004-07-25 13:24 ` Fruhwirth Clemens
2004-07-25 15:24 ` Marc Ballarin
2004-07-25 16:57 ` Andreas Jellinghaus
2004-07-25 17:25 ` Jari Ruusu
2004-07-25 18:02 ` Fruhwirth Clemens
2004-07-25 19:09 ` Lee Revell
2004-07-25 19:15 ` Fruhwirth Clemens
2004-07-25 19:44 ` Marc Ballarin
2004-07-25 20:58 ` Fruhwirth Clemens
2004-07-26 10:54 ` Jari Ruusu
2004-07-26 12:45 ` Fruhwirth Clemens
2004-07-26 18:11 ` Jari Ruusu
2004-07-26 22:59 ` Fruhwirth Clemens
2004-07-26 20:01 ` Matt Mackall
[not found] ` <fa.edslbgp.q763qd@ifi.uio.no>
2004-07-27 8:40 ` Junio C Hamano
2004-07-27 8:53 ` Matt Mackall
2004-07-27 10:10 ` Marc Ballarin
2004-07-26 22:04 ` Marc Ballarin
2004-07-27 19:56 ` Bill Davidsen
[not found] <2kMAw-rl-15@gated-at.bofh.it>
2004-07-22 19:44 ` Pascal Brisset
2004-07-23 10:59 Thomas Habets
[not found] <2kvT4-5AY-1@gated-at.bofh.it>
[not found] ` <2kC85-1AH-11@gated-at.bofh.it>
[not found] ` <2kDxa-2sB-1@gated-at.bofh.it>
[not found] ` <2kECW-3a0-7@gated-at.bofh.it>
2004-07-23 12:34 ` Walter Hofmann
2004-07-23 14:01 ` Kevin Corry
2004-07-23 18:20 ` Christophe Saout
2004-07-27 19:47 ` Bill Davidsen
2004-07-23 12:50 mattia
2004-07-26 7:13 Adam J. Richter
2004-07-30 8:43 Markku-Juhani O. Saarinen
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