[Rats] I-D Action: draft-ietf-rats-msg-wrap-22.txt

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Internet-Draft draft-ietf-rats-msg-wrap-22.txt is now available. It is a work
item of the Remote ATtestation ProcedureS (RATS) WG of the IETF.

   Title:   RATS Conceptual Messages Wrapper (CMW)
   Authors: Henk Birkholz
            Ned Smith
            Thomas Fossati
            Hannes Tschofenig
            Dionna Glaze
   Name:    draft-ietf-rats-msg-wrap-22.txt
   Pages:   41
   Dates:   2025-12-04

Abstract:

   The Conceptual Messages introduced by the RATS architecture (RFC
   9334) are protocol-agnostic data units that are conveyed between RATS
   roles during remote attestation procedures.  Conceptual Messages
   describe the meaning and function of such data units within RATS data
   flows without specifying a wire format, encoding, transport
   mechanism, or processing details.  The initial set of Conceptual
   Messages is defined in Section 8 of RFC 9334 and includes Evidence,
   Attestation Results, Endorsements, Reference Values, and Appraisal
   Policies.

   This document introduces the Conceptual Message Wrapper (CMW) that
   provides a common structure to encapsulate these messages.  It
   defines a dedicated CBOR tag, corresponding JSON Web Token (JWT) and
   CBOR Web Token (CWT) claims, and an X.509 extension.

   This allows CMWs to be used in CBOR-based protocols, web APIs using
   JWTs and CWTs, and PKIX artifacts like X.509 certificates.
   Additionally, the draft defines a media type and a CoAP content
   format to transport CMWs over protocols like HTTP, MIME, and CoAP.

   The goal is to improve the interoperability and flexibility of remote
   attestation protocols.  Introducing a shared message format such as
   CMW enables consistent support for different attestation message
   types, evolving message serialization formats without breaking
   compatibility, and avoiding the need to redefine how messages are
   handled within each protocol.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-rats-msg-wrap/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-rats-msg-wrap-22.html

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-rats-msg-wrap-22

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts