From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752433AbZELVCY (ORCPT ); Tue, 12 May 2009 17:02:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752208AbZELVCN (ORCPT ); Tue, 12 May 2009 17:02:13 -0400 Received: from THUNK.ORG ([69.25.196.29]:34661 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752189AbZELVCN (ORCPT ); Tue, 12 May 2009 17:02:13 -0400 Date: Tue, 12 May 2009 17:01:54 -0400 From: Theodore Tso To: Joseph Cihula Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, arjan@linux.intel.com, hpa@zytor.com, andi@firstfloor.org, chrisw@sous-sol.org, jmorris@namei.org, jbeulich@novell.com, peterm@redhat.com, gang.wei@intel.com, shane.wang@intel.com, John Gilmore Subject: Re: [RFC v3][PATCH 2/2] intel_txt: Intel(R) TXT and tboot kernel support Message-ID: <20090512210154.GC23773@mit.edu> Mail-Followup-To: Theodore Tso , Joseph Cihula , linux-kernel@vger.kernel.org, mingo@elte.hu, arjan@linux.intel.com, hpa@zytor.com, andi@firstfloor.org, chrisw@sous-sol.org, jmorris@namei.org, jbeulich@novell.com, peterm@redhat.com, gang.wei@intel.com, shane.wang@intel.com, John Gilmore References: <4A03B9C3.9090607@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A03B9C3.9090607@intel.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@mit.edu X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 07, 2009 at 09:49:07PM -0700, Joseph Cihula wrote: > Linux support for Intel(R) Trusted Execution Technology. It should be noted that one of the prime purposes of the Trusted Execution Technology (TXT), aka LaGrande Technology is for DRM enforcement systems that can be nearly uncrackable. It can be used for other things, such as restricting who can look at your medical records (basically, the same technology that prevents you from breaking the DRM on say, a high-definition movie from Hollywood) can also be used to enforced who can look at your certain records, such as medical records in a highly secure and non-circumvental fashion. Ross Anderson was one of the first to write about these concerns, over five years ago: http://www.cl.cam.ac.uk/~rja14/tcpa-faq.html It's interesting that his 2003 document was able to predict the emergence of the LaGrande Technology (see question 15 in the above FAQ). So we should expect a certain amount of controversy and people lobbying to resist the acceptance of this patch. Regards, - Ted