Re: [TLS] Encrypted SNI (was: Privacy considerations - identity hiding from eavesdropping in (D)TLS)

mrex@sap.com (Martin Rex) Fri, 25 September 2015 17:00 UTC

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To: "Salz, Rich" <rsalz@akamai.com>
Date: Fri, 25 Sep 2015 19:00:03 +0200 (CEST)
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From: mrex@sap.com (Martin Rex)
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Subject: Re: [TLS] Encrypted SNI (was: Privacy considerations - identity hiding from eavesdropping in (D)TLS)
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Salz, Rich wrote:
> 
> At the TLS interim earlier this week, Brian Sniffen (from Akamai) started
> a proposal that makes SNI-encryption something that can be deployed and
> tested on the Internet in TLS 1.3.  So we'll see if it gets used and works.
> The earlier slides notwithstanding, it's something we
> (those of us at Akamai) would really like to see.

I haven't been tracking the TLSv1.3 proposals -- but whatever you do
in the area of encrypted SNI, please ensure that padding *WILL* be used,
so that two encrypted server names, that happend to differ by length,
will not remain easily distinguishable.

-Martin