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Re: [TLS] Possible blocking of Encrypted SNI extension in China

Peter Gutmann <pgut001@cs.auckland.ac.nz> Tue, 11 August 2020 05:58 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Rob Sayre <sayrer@gmail.com>
CC: Christian Huitema <huitema@huitema.net>, Christopher Wood <caw@heapingbits.net>, "TLS@ietf.org" <tls@ietf.org>
Thread-Topic: [TLS] Possible blocking of Encrypted SNI extension in China
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Date: Tue, 11 Aug 2020 05:58:04 +0000
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Subject: Re: [TLS] Possible blocking of Encrypted SNI extension in China
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Rob Sayre <sayrer@gmail.com> writes:

>Do you think this fingerprinting will work with the newer ECH design, if the
>client can add arbitrary content to the encrypted payload?

ECH doesn't have any effect on web site fingerprinting so unless I've
misunderstood your question the answer would be "N/A".

Peter.

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