Re: [Rats] draft-frost-rats-eat-collection-01 ... RE: Request for review and interest

Hannes Tschofenig <Hannes.Tschofenig@arm.com> Tue, 04 October 2022 12:11 UTC

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From: Hannes Tschofenig <Hannes.Tschofenig@arm.com>
To: "Smith, Ned" <ned.smith@intel.com>, Thomas Fossati <tho.ietf@gmail.com>
CC: Carl Wallace <carl@redhoundsoftware.com>, "Nancy Cam-Winget (ncamwing)" <ncamwing=40cisco.com@dmarc.ietf.org>, "rats@ietf.org" <rats@ietf.org>
Thread-Topic: [Rats] draft-frost-rats-eat-collection-01 ... RE: Request for review and interest
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Archived-At: <https://mailarchive.ietf.org/arch/msg/rats/GVeA89Jmcn-CbMfBmMQa0w9cU5M>
Subject: Re: [Rats] draft-frost-rats-eat-collection-01 ... RE: Request for review and interest
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Hey Ned,

I would expect individual EATs inside the collection to be tagged unless the context makes it clear what the collection contains.

Ciao
Hannes

-----Original Message-----
From: Smith, Ned <ned.smith@intel.com>
Sent: Monday, October 3, 2022 11:27 PM
To: Thomas Fossati <tho.ietf@gmail.com>; Hannes Tschofenig <Hannes.Tschofenig@arm.com>
Cc: Carl Wallace <carl@redhoundsoftware.com>; Nancy Cam-Winget (ncamwing) <ncamwing=40cisco.com@dmarc.ietf.org>; rats@ietf.org
Subject: Re: [Rats] draft-frost-rats-eat-collection-01 ... RE: Request for review and interest

Will the various forms / formats that a collection could take on result in the need for different content type tags. Do collections anticipate defining a content type?

On 10/3/22, 1:50 PM, "RATS on behalf of Thomas Fossati" <rats-bounces@ietf.org on behalf of tho.ietf@gmail.com> wrote:

    Hi Hannes,

    On Mon, Oct 3, 2022 at 3:07 PM Hannes Tschofenig
    <Hannes.Tschofenig@arm.com> wrote:
    > This document is simple but useful because it allows us to bundle two or more EAT tokens together.
    >
    > One application of this document is in draft-fossati-tls-attestation.
    >
    > Hence, I support this document.

    I agree it is a useful construct that can be repurposed for our
    attested TLS prototype.  In general, it seems like a good match for
    cases where two pieces of evidence must fit together -- for example,
    Eric noticed it could be also used as a building block for ar4si's
    AR-augmented evidence.

    (Maybe the two use cases above could be added to §2.)

    One observation.  The evidence binding mechanism is left as IMPDEF.
    While I agree implementations must be free to choose what suits them
    best, I think it'd be good if the document provided a robust default
    for the binder construction that collections can reuse if they don't
    have any special requirements.

    cheers,

    > From: RATS <rats-bounces@ietf.org> On Behalf Of Carl Wallace
    > Sent: Monday, August 29, 2022 1:13 PM
    > To: Nancy Cam-Winget (ncamwing) <ncamwing=40cisco.com@dmarc.ietf.org>; rats@ietf.org
    > Subject: Re: [Rats] Request for review and interest
    >
    > I have reviewed this draft and provided feedback and would do so again as it progresses.
    >
    > From: RATS <mailto:rats-bounces@ietf.org> on behalf of "Nancy Cam-Winget (ncamwing)" <mailto:ncamwing=40cisco.com@dmarc.ietf.org>
    > Date: Tuesday, August 2, 2022 at 7:11 PM
    > To: "mailto:rats@ietf.org" <mailto:rats@ietf.org>
    > Subject: [Rats] Request for review and interest
    >
    > Hello RATs participants,
    >
    > There was discussion at the IETF 114 RATs session on EAT media types and more specifically document:
    > https://datatracker.ietf.org/doc/draft-frost-rats-eat-collection/
    >
    > This is a call for review and interest to gauge if the working group is interested in working, adopting
    > And implementing media types.  Further, if the draft is ready for adoption.
    >
    > Can we have at least 3 volunteers to review the draft and provide feedback?
    >
    > Thanks,
    > Nancy
    > (on behalf of the RATs chairs)
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    --
    Thomas

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