From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tansi.org (ns.km10532-04.keymachine.de [87.118.102.195]) by mail.saout.de (Postfix) with ESMTP for ; Mon, 26 Jul 2010 23:35:45 +0200 (CEST) Received: from gatewagner.dyndns.org (84-74-164-239.dclient.hispeed.ch [84.74.164.239]) by tansi.org (Postfix) with ESMTPA id 891AF1218320 for ; Mon, 26 Jul 2010 23:35:45 +0200 (CEST) Date: Mon, 26 Jul 2010 23:35:45 +0200 From: Arno Wagner Message-ID: <20100726213545.GA24778@tansi.org> References: <20100725103458.GA26486@tansi.org> <4C4C2D3C.40306@redhat.com> <1280063664.3309.119.camel@fermat.scientia.net> <4C4C4192.60908@redhat.com> <1280097464.3309.192.camel@fermat.scientia.net> <20100726085319.GC12550@tansi.org> <1280177263.3266.120.camel@fermat.scientia.net> <20100726210107.GB24052@tansi.org> <1280179683.3266.127.camel@fermat.scientia.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1280179683.3266.127.camel@fermat.scientia.net> Subject: Re: [dm-crypt] Efficacy of xts over 1TB List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de On Mon, Jul 26, 2010 at 11:28:03PM +0200, Christoph Anton Mitterer wrote: > On Mon, 2010-07-26 at 23:01 +0200, Arno Wagner wrote: > > On Mon, Jul 26, 2010 at 10:47:43PM +0200, Christoph Anton Mitterer wrote: > > > On Mon, 2010-07-26 at 10:53 +0200, Arno Wagner wrote: > > > > > Well but as far as I understand, this means that the same IV could be > > > > > used in multiple sectors (after the 32bit), right? > > > > Err, no? That would be "after 64 bit". > > > > > > Uhm why? If we have 64, bits but the upper 32 are masked 0 as far as I > > > understood... ? > > > > For plain. Not for plain64, i.e. plain is plain 64 with 32 bits > > masked and plain64 is full 64 bits. > Yeah that's what I meant,.. did I write plain64? Hmm. I think so, but I am not sure anymore. Anyways, plain64 solves the problem. Incidentially I have kernel 2.6.34 (and now 2.6.34.1) running on several different machines without any problem, and it has plain64. Not that I have a disk large enough to need it ;-) Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier