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Re: [dns-privacy] Authentication in draft-ietf-dprive-opportunistic-adotq

Eric Rescorla <ekr@rtfm.com> Mon, 15 February 2021 23:19 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Mon, 15 Feb 2021 15:18:58 -0800
Message-ID: <CABcZeBMi9eCWSF9f=G+_ViHw5bDjf-6htpH2W+Mp3VQYhL5w1w@mail.gmail.com>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Cc: Paul Hoffman <paul.hoffman@icann.org>, "dprive@ietf.org" <dprive@ietf.org>
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Subject: Re: [dns-privacy] Authentication in draft-ietf-dprive-opportunistic-adotq
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On Mon, Feb 15, 2021 at 3:15 PM Stephen Farrell <stephen.farrell@cs.tcd.ie>
wrote:

>
>
> On 15/02/2021 23:05, Eric Rescorla wrote:
> > Sure, I can believe that. I'm not any kind of DNS expert, but it's hard
> to
> > believe we can't invent*some*  signal that you use to ask whoever served
> > you the NS records.
>
> Yep. I think someone had a presentation a while back about
> how all the approaches considered so far were dead ends or
> impractical and why.
>

If someone could point me at that, I would be appreciative.

-Ekr


> So it may be that a new RRTYPE is needed, in which case, I
> gotta ask why that has a better chance than DNSSEC+DANE, as
> those seem similarly challenging to me.
>
> Of course, if there were something that strongly motivated
> DNS actors (registrars, TLDs, server operators) that'd be
> different but I don't think I've heard of anything that's
> attractive like that and that meets this requirement. (So
> there's no equivalent of the HTTPS RRTYPE here that's been
> suggested so far and that appeals to almost all actors.)
>
> Cheers,
> S.
>
>

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