From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from v6.tansi.org (ns.km31936-01.keymachine.de [87.118.116.4]) by mail.server123.net (Postfix) with ESMTP for ; Sun, 14 Dec 2014 21:23:31 +0100 (CET) Received: from gatewagner.dyndns.org (77-57-49-177.dclient.hispeed.ch [77.57.49.177]) by v6.tansi.org (Postfix) with ESMTPA id 1032020DC210 for ; Sun, 14 Dec 2014 21:23:31 +0100 (CET) Date: Sun, 14 Dec 2014 21:23:30 +0100 From: Arno Wagner Message-ID: <20141214202330.GA12006@tansi.org> References: <20141211220453.GA24563@citd.de> <548DD3DD.2090502@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <548DD3DD.2090502@gmail.com> Subject: Re: [dm-crypt] question List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de On Sun, Dec 14, 2014 at 19:15:57 CET, Milan Broz wrote: > On 12/11/2014 11:04 PM, Matthias Schniedermeyer wrote: > > > > The unsafe(!) 'inplace' method (that as an advantage doesn't need > > additional storage): > > Just open the container normally, 'dd' the mapped container over the > > backing device and pray that process isn't interruped. Because it will > > be a huge PITA if it gets interruped. > > Just FYI... > > I wonder why I did not add this option "permanently decrypt" to > cryptsetup-reencrypt. This was likely just too obvious. Oversights like that happen to me too. > Reencrypt tool uses similar approach to dd just it can be safely > interrupted and restarted. Difference here would be that overwriting the header area would need to be done last and data needs to be shifted forward by the data-offset. Having a header-sized unused area at the end should be non-critical. > Added enhancement issue for it > https://code.google.com/p/cryptsetup/issues/detail?id=236 Excellent. Arno > Milan > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- A good decision is based on knowledge and not on numbers. -- Plato If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier