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Re: [Rats] Call for adoption (after draft rename) for Yang module draft

"Eric Voit (evoit)" <evoit@cisco.com> Mon, 18 November 2019 08:35 UTC

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From: "Eric Voit (evoit)" <evoit@cisco.com>
To: "Schönwälder, Jürgen" <J.Schoenwaelder@jacobs-university.de>, Dave Thaler <dthaler=40microsoft.com@dmarc.ietf.org>
CC: "Smith, Ned" <ned.smith@intel.com>, Henk Birkholz <henk.birkholz@sit.fraunhofer.de>, "Nancy Cam-Winget (ncamwing)" <ncamwing@cisco.com>, "Oliver, Ian (Nokia - FI/Espoo)" <ian.oliver@nokia-bell-labs.com>, Laurence Lundblade <lgl@island-resort.com>, "rats@ietf.org" <rats@ietf.org>
Thread-Topic: [Rats] Call for adoption (after draft rename) for Yang module draft
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Date: Mon, 18 Nov 2019 08:35:51 +0000
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Subject: Re: [Rats] Call for adoption (after draft rename) for Yang module draft
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> From: Schönwälder, Jürgen, November 17, 2019 9:41 AM
> 
> On Fri, Nov 15, 2019 at 07:38:32AM +0000, Dave Thaler wrote:
> >
> > If there is a compelling reason to support a pull-based mechanism, and we
> get consensus that we need it, then great.
> > But so far I haven’t heard one.
> >
> 
> I hope I get the terminology right...
> 
> Research papers I have seen often use a challenge response model where
> the 'verifier' sends a specific challenge that the 'attester' has to answer
> (often with time constraints, minimizing the chance to relay the challenge
> and such things). I think I pointed this out before.
> 
> Perhaps RATS does not need this form of challenge response attestation and
> perhaps RATS is fine with the assumption that the attester somehow knows
> which claims a verifier needs. But then it would be nice to spell this out
> clearly so that people looking for challenge response attestation attestation
> flows know that RATS is not for them.

Commercial products which do challenge/response type remote attestation currently exist.  E.g.: https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/application-policy-infrastructure-controller-enterprise-module/1-5-x/integrity_verification/release-notes_ver_275/Cisco_IV_App_RN_1_5_0_275.pdf 

I am hoping that RATS supports such applications.

Eric

> /js
> 
> --
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>
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