Re: [Rats] Question about WG Procedure -- Re: 答复: Use case -> architecture document

"Nancy Cam-Winget (ncamwing)" <ncamwing@cisco.com> Wed, 16 October 2019 16:00 UTC

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From: "Nancy Cam-Winget (ncamwing)" <ncamwing@cisco.com>
To: Laurence Lundblade <lgl@island-resort.com>, "Smith, Ned" <ned.smith@intel.com>
CC: "rats@ietf.org" <rats@ietf.org>, Thomas Hardjono <hardjono@mit.edu>
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Date: Wed, 16 Oct 2019 16:00:47 +0000
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Subject: Re: [Rats] =?utf-8?q?Question_about_WG_Procedure_--_Re=3A__=E7=AD=94?= =?utf-8?q?=E5=A4=8D=3A__Use_case_-=3E_architecture_document?=
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Hi,
Comments below:

From: RATS <rats-bounces@ietf.org> on behalf of Laurence Lundblade <lgl@island-resort.com>
Date: Wednesday, October 16, 2019 at 08:50
To: "Smith, Ned" <ned.smith@intel.com>
Cc: "rats@ietf.org" <rats@ietf.org>rg>, Thomas Hardjono <hardjono@mit.edu>
Subject: Re: [Rats] Question about WG Procedure -- Re: 答复: Use case -> architecture document


On Oct 16, 2019, at 8:13 AM, Smith, Ned <ned.smith@intel.com<mailto:ned.smith@intel.com>> wrote:
...
The original milestones suggested that the timing could lag that of other drafts (that seem to address more immediate needs.) Maybe that is no longer the case because of a need to agree on terminology, attestation workflows or connection endpoint semantics?
...
EAT is not being held up by lack of a completed architecture document. The same might be true of the yang draft.
[NCW] Fully agree….and  we did state (perhaps it was during the BoFs) that the architecture could be done in parallel as on several occasions the architecture gets “tweaked” based on the adoption of the actual schemas, protocols and interfaces adopted.

i think it is still true that architecture can lag the other documents.

Lots of use cases already know what to do about end-end flows and architecture. FIDO and Android attestation already have their flows. They could use EAT without any IETF architecture document.

Seems like the architecture effort is attempting a unified field theory of attestation across all use cases. I think this is of value, but hard to do.
[NCW] Abstractly, I think there is general agreement on most of the roles despite the naming of the roles and how they potentially fllow.  That, to me, can be the basis for the architecture, the models that Dave describes are more of the interactions that define the interfaces or communications between the roles.  I’m not convinced yet on the hardship other  than the discussions on the terminology

LL