Re: [pkix] How do we differentiate authentic servers from proxies performing TLS interception?

"Miller, Timothy J." <tmiller@mitre.org> Thu, 12 November 2015 13:00 UTC

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From: "Miller, Timothy J." <tmiller@mitre.org>
To: "noloader@gmail.com" <noloader@gmail.com>, PKIX <pkix@ietf.org>
Thread-Topic: [pkix] How do we differentiate authentic servers from proxies performing TLS interception?
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Date: Thu, 12 Nov 2015 13:00:46 +0000
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Subject: Re: [pkix] How do we differentiate authentic servers from proxies performing TLS interception?
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> How do we differentiate authentic servers from proxies performing TLS
> interception?

What would be the point?  You're going to accept a legitimate MitM (e.g., corporate security) and a malicious MitM won't use the extension.

It's more productive to attack the problem of binding *authorities* to sites--e.g., DANE, pinning, &etc.--because that addresses both cases and provides information a client can intelligently act upon.

-- T