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Re: [DNSOP] [internet-drafts@ietf.org: I-D Action: draft-rescorla-tls-esni-00.txt]

Patrick McManus <pmcmanus@mozilla.com> Thu, 19 July 2018 17:47 UTC

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From: Patrick McManus <pmcmanus@mozilla.com>
Date: Thu, 19 Jul 2018 13:47:19 -0400
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To: Jan Včelák <jv@fcelda.cz>
Cc: dnsop <dnsop@ietf.org>, draft-rescorla-tls-esni@ietf.org
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Subject: Re: [DNSOP] [internet-drafts@ietf.org: I-D Action: draft-rescorla-tls-esni-00.txt]
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On Thu, Jul 19, 2018 at 1:36 PM, Jan Včelák <jv@fcelda.cz> wrote:

> Hey,
>
> I just scanned the draft and focused mainly on the DNS bits. The
> described method for publishing encryption keys for SNI in DNS won't
> allow use of wildcard domain names.
>
>
Thanks!

I believe the draft is OK on this point because wildcards aren't needed.
While certificates can be valid for wildcard domains, the SNI is always a
specific hostname (and the plaintext hostname informs the DNS question)

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