Re: [homenet] Ted's security talk at IETF99: DNCP Security

Ted Lemon <mellon@fugue.com> Tue, 01 August 2017 15:56 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Tue, 1 Aug 2017 11:56:33 -0400
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To: Michael Richardson <mcr+ietf@sandelman.ca>
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Subject: Re: [homenet] Ted's security talk at IETF99: DNCP Security
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On Aug 1, 2017, at 11:38 AM, Michael Richardson <mcr+ietf@sandelman.ca>; wrote:
> You agree that it's a different problem right?
> 
> The common part is that one might have a similar set of external (physical) signals.
> 
> Should Dave bring his printer to the IETF network, and they happen to
> discovery each other via privacy-enhanced dnssd magic (cf: Arthur Clark's
> definition of magic), then it would be good that they can prove that it's really them.

To be honest, I probably missed the point you were making—I just went back and reviewed this exchange, and I don't actually understand what the distinction is that you are making between ephemeral and long-lived relationships.