Re: [Last-Call] Iotdir last call review of draft-ietf-dnssd-prireq-04

Christian Huitema <huitema@huitema.net> Thu, 13 February 2020 18:36 UTC

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To: Samita Chakrabarti <samitac.ietf@gmail.com>, iot-directorate@ietf.org
Cc: draft-ietf-dnssd-prireq.all@ietf.org, last-call@ietf.org, dnssd@ietf.org
References: <158161511905.20519.9851954062722453601@ietfa.amsl.com>
From: Christian Huitema <huitema@huitema.net>
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Date: Thu, 13 Feb 2020 10:36:27 -0800
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Subject: Re: [Last-Call] Iotdir last call review of draft-ietf-dnssd-prireq-04
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Thanks for the review, Samita. We will try to add some precisions about
IoT devices in the next version of the draft.

On 2/13/2020 9:31 AM, Samita Chakrabarti via Datatracker wrote:
> Reviewer: Samita Chakrabarti
> Review result: Ready with Nits
>
> I have reviewed draft-ietf-dnssd-prireq-04.
>
> The document is informative and clear with a few editorial nits on section 4.1
> through 4.3.
>
> I have reviewed from the IoT devices perspective  and most likely for the
> consumer devices that might be present in the public network and are using
> shared network technologies (wireless or wired). The threat model are
> applicable to them. Section 3.1 describes implications for wearable and  server
> related privacy issue.  Perhaps a small paragraph might be added in this
> section or in the introduction calling out possible privacy and security
> threats on personal IoT devices in the public places ( that might act as a
> dns-sd client).
>
> At the same time, considering limited processing capabilities, battery saving
> concern considerations, privacy related extra processing of messages from the
> dns-sd server should not be mandated for the IoT devices. Depending on the
> device capabilities, the feature can be configurable and the user can turn
> on/off  at their need; additionally some iot devices may not care about the
> privacy at all.
>
> So, a few additional lines on IoT implications for the threat model and yet
> flexibility of implementation of the dns-sd IOT client may be mentioned in the
> document to clarify the IoT devices in the shared wireless/wired medium.
>
>