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Re: [TLS] Final nail in the coffin for cleartext SNI/ALPN in TLS 1.3

mrex@sap.com (Martin Rex) Thu, 07 November 2013 19:02 UTC

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To: Ralf Skyper Kaiser <skyper@thc.org>
Date: Thu, 07 Nov 2013 19:59:57 +0100
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From: mrex@sap.com
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Subject: Re: [TLS] Final nail in the coffin for cleartext SNI/ALPN in TLS 1.3
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Ralf Skyper Kaiser wrote:
> 
> Some thoughts why SNI (host name) should be
> transmitted encrypted and not in clear.

But you are aware that there is no such thing as a
"confidential DNS lookup" (confidential towards whom anyways),
so that in general, what your browser is connecting will be
directly preceded by a cleartext DNS lookup with that very name...

(Not revealing the "next protocol" or client certs/identities
 is a different issue.)

-Martin

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