[Rats] yang tpm defining a datastore?

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Fri, 19 February 2021 13:21 UTC

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Date: Fri, 19 Feb 2021 14:21:37 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
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Subject: [Rats] yang tpm defining a datastore?
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draft-ietf-rats-yang-tpm-charra-05 says:

   This document defines a YANG RPC and a minimal datastore required to
   retrieve attestation evidence about integrity measurements from a
   device following the operational context defined in TPM-based Network
   Device Remote Integrity Verification.

Does it define a datastore? To me, it seems the document defines a
data model but not a datastore.

   [I-D.ietf-rats-reference-interaction-models] document.  A fresh nonce
   with an appropriate amount of entropy MUST be supplied by the YANG
   client in order to enable a proof-of-freshness with respect to the
   attestation evidence provided by the attester running the YANG
   datastore.

The "YANG datastore"?

  container rats-support-structures {
    description
      "The datastore definition enabling verifiers or relying
       parties to discover the information necessary to use the
       remote attestation RPCs appropriately.";

I guess this is all just sloppy wording, it does not seem like you are
defining a datastore. Note that a schema element like a container can
be instantiated in several datastores, not just one.

/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/>