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Re: [Add] Fwd: New Version Notification for draft-mglt-abcd-doh-privacy-analysis-00.txt

Rob Sayre <sayrer@gmail.com> Thu, 07 November 2019 18:47 UTC

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From: Rob Sayre <sayrer@gmail.com>
Date: Thu, 07 Nov 2019 10:47:26 -0800
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To: Christian Huitema <huitema@huitema.net>
Cc: Vittorio Bertola <vittorio.bertola@open-xchange.com>, Bob Harold <rharolde@umich.edu>, "add@ietf.org" <add@ietf.org>, Daniel Migault <daniel.migault=40ericsson.com@dmarc.ietf.org>
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Subject: Re: [Add] Fwd: New Version Notification for draft-mglt-abcd-doh-privacy-analysis-00.txt
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On Wed, Nov 6, 2019 at 3:37 PM Christian Huitema <huitema@huitema.net>
wrote:

> 3) But of course there are exceptions to this general rule, specifically
> when the traffic uses TLS 1.3 and ESNI. That's where Daniel's draft is a
> bit weak. It develops the arguments (1) and (2), but stops there and
> does not recognize the exceptions.
>
> One first exception happens when the DNS requests to the local resolver
>

...

Another exception happens when the traffic uses TLS 1.3 and ESNI.
>

There are other exceptions. For example, the SNI might not match the Host
header in encrypted HTTP traffic.

It could be something completely mismatched, or it could be a more specific
subdomain of the host given in the SNI.

thanks,
Rob

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