Subject: [Rats] FW: New Version Notification for draft-tschofenig-rats-psa-token-08.txt

From: Thomas Fossati <[email-masked]>
Date: Wed, 24 Mar 2021 10:12:08 +0000

Hi all,

The PSA token is now phrased as a EAT profile, using 3 EAT claims from
the IANA pre-registration list, instead of the private ones we have been
using until -07.

We have tried to diligently tick all the boxes in Section 5 ("Profiles")
of the EAT document -- we also added a discussion about the freshness
model that the PSA token assumes.  (Is this something that could be
added to Section 5?)

This is not a WG item, but reviews from WG members would be greatly
appreciated.  We want to get this right as it is likely to become a
blueprint for other profile documents.

Cheers, thank you!

On 24/03/2021, 10:08, "[email-masked]" <[email-masked]> wrote:
>
> A new version of I-D, draft-tschofenig-rats-psa-token-08.txt has been
> successfully submitted by Thomas Fossati and posted to the IETF
> repository.
>
> Name:         draft-tschofenig-rats-psa-token
> Revision:     08
> Title:                Arm's Platform Security Architecture (PSA) Attestation Token
> Document date:        2021-03-24
> Group:                Individual Submission
> Pages:                22
> URL:            https://www.ietf.org/archive/id/draft-tschofenig-rats-psa-token-08.txt
> Status:         https://datatracker.ietf.org/doc/draft-tschofenig-rats-psa-token/
> Html:           https://www.ietf.org/archive/id/draft-tschofenig-rats-psa-token-08.html
> Htmlized:       https://tools.ietf.org/html/draft-tschofenig-rats-psa-token-08
> Diff:           https://www.ietf.org/rfcdiff?url2=draft-tschofenig-rats-psa-token-08
>
> Abstract:
>    The Platform Security Architecture (PSA) is a family of hardware and
>    firmware security specifications, as well as open-source reference
>    implementations, to help device makers and chip manufacturers build
>    best-practice security into products.  Devices that are PSA compliant
>    are able to produce attestation tokens as described in this memo,
>    which are the basis for a number of different protocols, including
>    secure provisioning and network access control.  This document
>    specifies the PSA attestation token structure and semantics.
>
>    The PSA attestation token is a profiled Entity Attestation Token
>    (EAT).
>
>    This specification describes what claims are used in an attestation
>    token generated by PSA compliant systems, how these claims get
>    serialized to the wire, and how they are cryptographically protected.
>
>
>
> Please note that it may take a couple of minutes from the time of
> submission until the htmlized version and diff are available at
> tools.ietf.org.
>
> The IETF Secretariat

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