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

Eliot Lear <lear@cisco.com> Tue, 26 July 2016 16:10 UTC

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To: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>, "Kumar, Sandeep" <sandeep.kumar@philips.com>
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From: Eliot Lear <lear@cisco.com>
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Date: Tue, 26 Jul 2016 17:59:27 +0200
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Cc: Stephen Farrell <stephen.farrell@cs.tcd.ie>, "ace@ietf.org" <ace@ietf.org>, Rene Struik <rstruik.ext@gmail.com>, Michael StJohns <mstjohns@comcast.net>, Somaraju Abhinav <abhinav.somaraju@tridonic.com>
Subject: Re: [Ace] Adoption of Low Latency Group Communication Security Work in ACE
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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.  Thus the concern over transitory trust, especially
should these systems have multiple functions.

Eliot

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