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Re: [Ace] Adoption of Low Latency Group Communication Security Work in ACE

Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com> Tue, 26 July 2016 16:13 UTC

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From: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
Date: Tue, 26 Jul 2016 12:06:16 -0400
Message-ID: <CAHbuEH4OkV1YfMJacd8Md2KezPpCAnyd7C=h7udsOCtU8znbAw@mail.gmail.com>
To: Eliot Lear <lear@cisco.com>
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Cc: Rene Struik <rstruik.ext@gmail.com>, Michael StJohns <mstjohns@comcast.net>, "ace@ietf.org" <ace@ietf.org>, Somaraju Abhinav <abhinav.somaraju@tridonic.com>, "Kumar, Sandeep" <sandeep.kumar@philips.com>, Stephen Farrell <stephen.farrell@cs.tcd.ie>
Subject: Re: [Ace] Adoption of Low Latency Group Communication Security Work in ACE
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On Tue, Jul 26, 2016 at 11:59 AM, Eliot Lear <lear@cisco.com> wrote:
> Hi Kathleen,
>
>
> On 7/26/16 4:52 PM, Kathleen Moriarty wrote:
>
> What is the bigger threat model?
>
> Lights turning on/off in large buildings could result in increased energy
> costs.
> Lights turning on/off could result in safety issues (they could be extreme).
>
>
> It's also a matter of changing colors, misappropriation of sensors, and
> perhaps more important: expropriation of the lighting systems to attack
> other systems.

Sure, but only if it's connected to other devices in a way that
permits this.  I haven't seen what the intended architecture is for
the proposed solution.

>  Thus the concern over transitory trust, especially should
> these systems have multiple functions.
>
> Eliot
>



-- 

Best regards,
Kathleen

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