From nobody Thu Oct 29 14:07:01 2020 Return-Path: X-Original-To: rats@ietfa.amsl.com Delivered-To: rats@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 949FD3A0114 for ; Thu, 29 Oct 2020 14:06:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.894 X-Spam-Level: X-Spam-Status: No, score=-1.894 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bB5QJMCSEeV5 for ; Thu, 29 Oct 2020 14:06:55 -0700 (PDT) Received: from p3plsmtpa09-10.prod.phx3.secureserver.net (p3plsmtpa09-10.prod.phx3.secureserver.net [173.201.193.239]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E02B53A0147 for ; Thu, 29 Oct 2020 14:06:55 -0700 (PDT) Received: from [192.168.1.81] ([76.167.193.86]) by :SMTPAUTH: with ESMTPA id YF8IktZh2hxTPYF8IkLBZE; Thu, 29 Oct 2020 14:06:54 -0700 X-CMAE-Analysis: v=2.4 cv=PLjKRdmC c=1 sm=1 tr=0 ts=5f9b2eee a=t2DvPg6iSvRzsOFYbaV4uQ==:117 a=t2DvPg6iSvRzsOFYbaV4uQ==:17 a=7CQSdrXTAAAA:8 a=CRrk88pQzB9dKn-9xysA:9 a=QEXdDO2ut3YA:10 a=6qy36IhDiBWzmJzcoZMA:9 a=C7YeEDshcqagmwDt:21 a=_W_S_7VecoQA:10 a=a-qgeE7W1pNrGK8U0ZQC:22 X-SECURESERVER-ACCT: lgl@island-resort.com From: Laurence Lundblade Message-Id: <3370D92E-23C2-41C3-B86F-A65C168E9082@island-resort.com> Content-Type: multipart/alternative; boundary="Apple-Mail=_64EE1195-F5A7-4DFC-A62E-8A27ABFCCF32" Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Date: Thu, 29 Oct 2020 14:06:53 -0700 In-Reply-To: Cc: Simon Frost , "rats@ietf.org" , teep , Dave Thaler To: Thomas Fossati References: <7607E6BF-459C-4A32-AAE2-08117A97E06B@island-resort.com> <2D53BD60-4FA8-4153-B28B-585E902845AE@island-resort.com> X-Mailer: Apple Mail (2.3445.104.17) X-CMAE-Envelope: MS4xfJsxIRhglPYq6QUVgUDUSvnRkoiuELx6gHlslFltCHqyyzdwXoZSb0uPmhsiMmyx6tNwk251U6CfUno/r0kmlVYYzES09jeuJ7TQTezOkpkV8+k7BRhb omUoSe8ILaj5tfJod7i+Btz2xKrRLFsTwJ5tKk+qgu9zC5U/hqSWVX63A1HrIKrSYSSfbbVxqxtWzcyjYJrgX8q8NY9DfbfSkDDa7fyxsRuZAbGigsrdZ3F/ K2D07aiHiSfEXYFz5rwEKvgzs/KYWt09Qvq8ockoYk9NaRHGJrRy94xBxXq+kZaIgJCM5oTzYYOQvzIqoOuvbw== Archived-At: Subject: Re: [Rats] EAT claims needed by TEEP X-BeenThere: rats@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Remote ATtestation procedureS List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Oct 2020 21:06:58 -0000 --Apple-Mail=_64EE1195-F5A7-4DFC-A62E-8A27ABFCCF32 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On Oct 29, 2020, at 1:45 PM, Thomas Fossati = wrote: >=20 > Hi Laurence, > =20 > > My understanding is that they are always encoded as CBOR text = strings, > > so floating-point doesn=E2=80=99t mean #7.25 or such. > =20 > Correct. In (Co)SWID software-version is just a text string and = version-scheme > is there to do some semantic polishing. But the underlying type is = always #3. > =20 > Maybe I=E2=80=99m misunderstanding your proposal here, but I would be = circumspect > in mixing SWIDs attributes, which are scoped to software artifacts, = with HW > identifiers. Hi Thomas, All the SW Version stuff would fall under a single EAT claims that = contains a full CoSWID. For HW Version, I was thinking of two EAT claims, one for the version = text, another for the version scheme (or we could go off and define a = full CoHWID). LL --Apple-Mail=_64EE1195-F5A7-4DFC-A62E-8A27ABFCCF32 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
On = Oct 29, 2020, at 1:45 PM, Thomas Fossati <Thomas.Fossati@arm.com> wrote:

Hi Laurence,
 
> My understanding is = that they are always encoded as CBOR text strings,
> so floating-point = doesn=E2=80=99t mean #7.25 or such.
 
Correct.  In (Co)SWID software-version is = just a text string and version-scheme
is there to do some semantic polishing.  = But the underlying type is always #3.
 
Maybe I=E2=80=99m misunderstanding your proposal = here, but I would be circumspect
in mixing SWIDs attributes, which are scoped to = software artifacts, with HW
identifiers.

Hi Thomas,

All the SW Version stuff would fall under a single = EAT claims that contains a full CoSWID.

For HW Version, I was thinking of two EAT claims, = one for the version text, another for the version scheme (or we could go = off and define a full CoHWID).

LL



= --Apple-Mail=_64EE1195-F5A7-4DFC-A62E-8A27ABFCCF32--