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Re: [Rats] More use cases for draft-richardson-rats-usecases-00

Michael Richardson <mcr+ietf@sandelman.ca> Fri, 14 June 2019 18:46 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "Smith, Ned" <ned.smith@intel.com>
cc: Anders Rundgren <anders.rundgren.net@gmail.com>, Carl Wallace <carl@redhoundsoftware.com>, "rats@ietf.org" <rats@ietf.org>
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Date: Fri, 14 Jun 2019 14:46:02 -0400
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Subject: Re: [Rats] More use cases for draft-richardson-rats-usecases-00
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Smith, Ned <ned.smith@intel.com> wrote:
    > Anders refers to session-based attestation in the TEEP archive which
    > points to several sources including a TCG source. This may be referring
    > to a public specification known as DICE - Device Identifier Composition
    > Engine.
    > https://trustedcomputinggroup.org/wp-content/uploads/Hardware-Requirements-for-Device-Identifier-Composition-Engine-r78_For-Publication.pdf

    > TCG terminology for TEEP's "Static" attestation is "Explicit
    > Attestation" and TEEP's term "Session Based" attestation is "Implicit
    > Attestation" by TCG.

I have included these translations into the document.

    > The EAT draft defines an attestation approach that seems close to (i)
    > if you ignore the nonce that is returned as a static claim / assertion
    > and if you rule out of scope the definition of how the signing key is
    > created / persisted.

    > The tokbind draft seems closely resemble (ii).

I want to be sure you mean: draft-mandyam-tokbind-attest-07 ?

    > The TUDA draft seems to
    > resemble (i). (Henk can correct me).

    > The yang draft seems to resemble
    > (ii). (Henk can correct me).

I'm trying to figure out what to do this statement.

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]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
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Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
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