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Re: [core] [Last-Call] Iotdir telechat review of draft-ietf-core-dev-urn-09

Jari Arkko <jari.arkko@piuha.net> Fri, 08 January 2021 19:01 UTC

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From: Jari Arkko <jari.arkko@piuha.net>
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Date: Fri, 08 Jan 2021 21:01:01 +0200
Cc: "iot-directorate@ietf.org" <iot-directorate@ietf.org>, draft-ietf-core-dev-urn.all@ietf.org, core@ietf.org, last-call@ietf.org
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To: Russ Housley <housley@vigilsec.com>
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Subject: Re: [core] [Last-Call] Iotdir telechat review of draft-ietf-core-dev-urn-09
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Hi Russ,

> I am still unsure what an implementer would do to comply the MUST NOT statement.  Maybe it will helpful to turn it into a MUST statement.  Does this work for you?
> 
> On most devices, the user can display device identifiers. Depending
> on circumstances, device identifiers may or may not be modified or
> tampered with by the user. An implementation of the DEV URN MUST preserve
> such limitations and behaviors associated with the device identifiers. In particular,
> a device identifier that is intended to be immutable should not become mutable
> as a part of implementing the DEV URN type. More generally, nothing in
> this document should be construed to override what the relevant device
> specifications have already said about the identifiers.

That sounds very good. Thanks!

Updated in the draft.

Jari

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