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[Rats] Re: [IANA #1434605] expert review for draft-ietf-rats-msg-wrap (cbor-tags)

Thomas Fossati <thomas.fossati@linaro.org> Mon, 17 November 2025 11:14 UTC

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From: Thomas Fossati <thomas.fossati@linaro.org>
Date: Mon, 17 Nov 2025 12:13:45 +0100
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CC: Christian Amsüss <christian@amsuess.com>, rats@ietf.org, draft-ietf-rats-msg-wrap@ietf.org
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Subject: [Rats] Re: [IANA #1434605] expert review for draft-ietf-rats-msg-wrap (cbor-tags)
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Hi Laurence,

On Fri, 14 Nov 2025 at 18:26, Laurence Lundblade <lgl@island-resort.com> wrote:
>
> It is the tag for any/every message that is a CMW just like 61 is the tag number to identify a CWT. The CDDL symbol for it in Section 6 is "cbor-cmw".
>
> The description in 10.4 could say it is a tag for messages that comply with Section 3.1, 3.2 and 3.3

I believe Chris's suggestion is superior because it provides more
precise information about the typing: JSON forms, CBOR forms,
JWS-protected, COSE-protected.  Please see the proposed text in [1].

[1] https://ietf-rats-wg.github.io/draft-ietf-rats-msg-wrap/9277-tags/draft-ietf-rats-msg-wrap.html#section-10.6.2

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