From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265911AbUBGBfX (ORCPT ); Fri, 6 Feb 2004 20:35:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266107AbUBGBfX (ORCPT ); Fri, 6 Feb 2004 20:35:23 -0500 Received: from www.trustcorps.com ([213.165.226.2]:19216 "EHLO raq1.nitrex.net") by vger.kernel.org with ESMTP id S265911AbUBGBc5 (ORCPT ); Fri, 6 Feb 2004 20:32:57 -0500 Message-ID: <40243F97.3040005@hcunix.net> Date: Sat, 07 Feb 2004 01:29:59 +0000 From: the grugq User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Hans Reiser CC: Jamie Lokier , Valdis.Kletnieks@vt.edu, Pavel Machek , linux-kernel@vger.kernel.org Subject: Re: PATCH - ext2fs privacy (i.e. secure deletion) patch References: <4017E3B9.3090605@hcunix.net> <20040203222030.GB465@elf.ucw.cz> <40203DE1.3000302@hcunix.net> <200402040320.i143KCaD005184@turing-police.cc.vt.edu> <20040207002010.GF12503@mail.shareable.org> <40243C24.8080309@namesys.com> In-Reply-To: <40243C24.8080309@namesys.com> X-Enigmail-Version: 0.82.4.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Well, I think secure deletion should be an option for everyone. Using encryption is a data hiding technique, you prevent people for detemining what sort of data is being stored there. Now, admittedly I dont know at what level the reiser4 encryption appears, but I would think its safer to have complete erasure when a file deleted regardless of how well protected its contents were. just a thought. --gq Hans Reiser wrote: > Jamie Lokier wrote: > >> Valdis.Kletnieks@vt.edu wrote: >> >> >>> Actually, I have encountered file systems where two successive >>> write() calls from userspace to the same offset in the file wouldn't >>> end up in the same physical location on the disk (AIX's JFS with >>> compression). >>> >> >> >> See also: >> >> - ext3 with data journalling >> >> - reiser4 with wandering logs >> >> - experimental ext? patches for tail-packing small files >> >> -- Jamie >> - >> To unsubscribe from this list: send the line "unsubscribe >> linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ >> >> >> >> > reiser4 probably does not need secure deletion as much as others, > because once the encryption plugins are debugged we will most likely > encourage users to use encryption by default. Perhaps someone will show > the error in my thinking though, I am not trying to be rigid here.... >