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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 autolearn=no 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 E50F8C433E0 for ; Thu, 18 Jun 2020 19:22:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C1A45208DB for ; Thu, 18 Jun 2020 19:22:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="s8f7Kwq8"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="s8f7Kwq8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727062AbgFRTWF (ORCPT ); Thu, 18 Jun 2020 15:22:05 -0400 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:44558 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726925AbgFRTWF (ORCPT ); Thu, 18 Jun 2020 15:22:05 -0400 Received: from localhost (localhost [127.0.0.1]) by bedivere.hansenpartnership.com (Postfix) with ESMTP id 9A0C48EE181; Thu, 18 Jun 2020 12:22:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1592508124; bh=AeJEQ3gyXbW8kDVuPGPOzZJWinGu6lLAijASbDnhmv0=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=s8f7Kwq83NZ4RdQpTqfQn4XAcRkniIeHQE/uXqUaQdAAHc4ld/1SQrHJIT1mR5Lxp mN+e7drR+8CfK0JE4haHjycv5ExXjS8GQAl+hyMcan1ObTQWlx2ckUWMuLpQmjffyT QcGvdo64gYEsIFOehfQyyf6RLVdfRbuzZP9Eqvx8= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id T5I8Huw3GqmW; Thu, 18 Jun 2020 12:22:04 -0700 (PDT) Received: from jarvis (unknown [216.116.10.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id DDAD58EE0EA; Thu, 18 Jun 2020 12:22:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1592508124; bh=AeJEQ3gyXbW8kDVuPGPOzZJWinGu6lLAijASbDnhmv0=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=s8f7Kwq83NZ4RdQpTqfQn4XAcRkniIeHQE/uXqUaQdAAHc4ld/1SQrHJIT1mR5Lxp mN+e7drR+8CfK0JE4haHjycv5ExXjS8GQAl+hyMcan1ObTQWlx2ckUWMuLpQmjffyT QcGvdo64gYEsIFOehfQyyf6RLVdfRbuzZP9Eqvx8= Message-ID: <1592508122.15159.7.camel@HansenPartnership.com> Subject: Re: [PATCH v10 2/8] oid_registry: Add TCG defined OIDS for TPM keys From: James Bottomley To: Jarkko Sakkinen Cc: Jerry Snitselaar , linux-integrity@vger.kernel.org, Mimi Zohar , David Woodhouse , keyrings@vger.kernel.org, David Howells Date: Thu, 18 Jun 2020 12:22:02 -0700 In-Reply-To: <20200618071451.GC6560@linux.intel.com> References: <20200616160229.8018-1-James.Bottomley@HansenPartnership.com> <20200616160229.8018-3-James.Bottomley@HansenPartnership.com> <20200617214237.dlvfnx2s7aw4sfng@cantor> <1592439940.3515.40.camel@HansenPartnership.com> <20200618071451.GC6560@linux.intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Thu, 2020-06-18 at 10:14 +0300, Jarkko Sakkinen wrote: > On Wed, Jun 17, 2020 at 05:25:40PM -0700, James Bottomley wrote: > > On Wed, 2020-06-17 at 14:42 -0700, Jerry Snitselaar wrote: > > > On Tue Jun 16 20, James Bottomley wrote: > > > > The TCG has defined an OID prefix "2.23.133.10.1" for the > > > > various > > > > TPM > > > > key uses. We've defined three of the available numbers: > > > > > > > > 2.23.133.10.1.3 TPM Loadable key. This is an asymmetric key > > > > (Usually > > > > RSA2048 or Elliptic Curve) which can be > > > > imported by a > > > > TPM2_Load() operation. > > > > > > > > 2.23.133.10.1.4 TPM Importable Key. This is an asymmetric key > > > > (Usually > > > > RSA2048 or Elliptic Curve) which can be > > > > imported by a > > > > TPM2_Import() operation. > > > > > > > > Both loadable and importable keys are specific to a given TPM, > > > > the > > > > difference is that a loadable key is wrapped with the symmetric > > > > secret, so must have been created by the TPM itself. An > > > > importable > > > > key is wrapped with a DH shared secret, and may be created > > > > without > > > > access to the TPM provided you know the public part of the > > > > parent > > > > key. > > > > > > > > 2.23.133.10.1.5 TPM Sealed Data. This is a set of data (up to > > > > 128 > > > > bytes) which is sealed by the TPM. It usually > > > > represents a symmetric key and must be unsealed > > > > before > > > > use. > > > > > > > > > > James, which document are these defined in? I was searching last > > > night, and couldn't find it. > > > > It isn't. It's defined in a TCG spreadsheet that Monty Wiseman > > keeps, but that seems to be as "official" as it gets with the TCG > > OID registry. > > > > James > > "The TCG has defined an OID prefix "2.23.133.10.1" for the various > TPM key uses." > > Should this sentence start just as "TCG ...", not sure if "the" is > required? I've always referred to it as The Trusted Computing Group (so the TCG) partly to show they're not just any old trusted computing group. But I think they mostly do refer to themselves in literature as TCG. James