From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7682BC43381 for ; Wed, 27 Feb 2019 17:25:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F1E220643 for ; Wed, 27 Feb 2019 17:25:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730047AbfB0RZt (ORCPT ); Wed, 27 Feb 2019 12:25:49 -0500 Received: from mga03.intel.com ([134.134.136.65]:45742 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730141AbfB0RZj (ORCPT ); Wed, 27 Feb 2019 12:25:39 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Feb 2019 09:25:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,420,1544515200"; d="scan'208";a="278328615" Received: from unknown (HELO localhost) ([10.249.254.142]) by orsmga004.jf.intel.com with ESMTP; 27 Feb 2019 09:25:37 -0800 Date: Wed, 27 Feb 2019 19:25:35 +0200 From: Jarkko Sakkinen To: James Bottomley Cc: linux-integrity@vger.kernel.org Subject: Re: About PureBoot and TPM based DRM's Message-ID: <20190227172535.GA3848@linux.intel.com> References: <20190227155611.GA7434@linux.intel.com> <1551286651.3105.11.camel@HansenPartnership.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1551286651.3105.11.camel@HansenPartnership.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Wed, Feb 27, 2019 at 08:57:31AM -0800, James Bottomley wrote: > On Wed, 2019-02-27 at 17:56 +0200, Jarkko Sakkinen wrote: > > Just read this: > > > > https://puri.sm/posts/pureboot-the-high-security-boot-process/ > > > > Makes me ask: where are these TPM based DRM's? Never seen one but I > > assume they exist. Anyway cool work otherwise. > > Actually, they don't, the article is just restating a common > misconception that the TPM is used to enforce DRM and then saying > they've found a non-evil use for it which, apparently, is using the TPM > for standard key storage and measurement. Apparently this means we're > also all working on non-evil uses ... *Might* be that Palladium that was canceled from Windows Vista might be the seed of this misconception. It seems to have spread about somewhat similar discussions when it still was coming. /Jarkko