Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261209AbUJYRfk (ORCPT ); Mon, 25 Oct 2004 13:35:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261217AbUJYRfh (ORCPT ); Mon, 25 Oct 2004 13:35:37 -0400 Received: from [195.23.16.24] ([195.23.16.24]:61147 "EHLO bipbip.comserver-pie.com") by vger.kernel.org with ESMTP id S261214AbUJYRdy (ORCPT ); Mon, 25 Oct 2004 13:33:54 -0400 Message-ID: <417D38F7.1040204@grupopie.com> Date: Mon, 25 Oct 2004 18:33:43 +0100 From: Paulo Marques Organization: Grupo PIE User-Agent: Mozilla Thunderbird 0.7.1 (X11/20040626) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Valdis.Kletnieks@vt.edu Cc: "Nico Augustijn." , hvr@gnu.org, clemens@endorphin.org, linux-kernel@vger.kernel.org Subject: Re: Cryptoloop patch for builtin default passphrase References: <200410251354.31226.kernel@janestarz.com> <200410251719.i9PHJmOi009687@turing-police.cc.vt.edu> In-Reply-To: <200410251719.i9PHJmOi009687@turing-police.cc.vt.edu> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-AntiVirus: checked by Vexira MailArmor (version: 2.0.1.16; VAE: 6.28.0.3; VDF: 6.28.0.34; host: bipbip) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1043 Lines: 30 Valdis.Kletnieks@vt.edu wrote: > On Mon, 25 Oct 2004 13:54:31 +0200, "Nico Augustijn." said: > > >>But all that takes some searching. And the passphrase is also XOR-ed with the >>first 32 bytes of /dev/nvram. > > > So if something touches the first 32 bytes of NVRAM, your data evaporates? > > Is this considered a desirable result? I don't have any feelings about this patch, but it seems to me that you could always store the contents of the nvram somewhere "safe" (you could even write them down and take it to a safe deposit box in a bank :) ), and, if those contents happen to change, you could always write them again... Just my 0.02 euros, -- Paulo Marques - www.grupopie.com All that is necessary for the triumph of evil is that good men do nothing. Edmund Burke (1729 - 1797) - 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/