Re: [Doh] panel discussion on DoH/DoC

Stephen Farrell <stephen.farrell@cs.tcd.ie> Mon, 11 February 2019 11:41 UTC

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To: Eric Rescorla <ekr@rtfm.com>, Andrew Sullivan <ajs@anvilwalrusden.com>
Cc: DoH WG <doh@ietf.org>, Martin Thomson <mt@lowentropy.net>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Date: Mon, 11 Feb 2019 11:40:55 +0000
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Subject: Re: [Doh] panel discussion on DoH/DoC
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Hiya,

On 11/02/2019 00:16, Eric Rescorla wrote:
> The general idea would be to have a list of DoH servers (operators, not
> machines) and then to randomly select one for each client. We haven't
> decided to do this, so also haven't decided on how we'd implement it :)

I agree that picking one like that is no worse and likely better than
round robin or similar, when considering how the DoH servers can affect
the browser user's privacy in "normal" scenarios. I'd guess that the
censorship scenario might call for something else though, esp if the
selected DoH server becomes unresponsive. Be interested if you've
thoughts on that. (Not sure myself what browser behaviours might be
best in such failure cases.)

Cheers,
S.