[TLS] What's up with TACK?

Aaron Zauner <azet@azet.org> Sat, 13 June 2015 19:34 UTC

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Date: Sat, 13 Jun 2015 21:34:45 +0200
From: Aaron Zauner <azet@azet.org>
To: tls@ietf.org
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Subject: [TLS] What's up with TACK?
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Hey,

I've been meaning to write this message for almost a year now. I've
not seen any recent discussion on generic key pinning on this list.

We now have HPKP support in major browsers but protocols like
STARTTLS are still left our when it comes to pinning. Discussion on
TACK seemed to have died during the HPKP proposal somehow, yet it's
the more elegant, generic approach to key pinning in TLS. Although
the spec is confusing I have no problem with HPKP as is and I'm
happy that it's in roll-out phase.

I'd like to see discussion on TACK again. Actually I don't
understand why this proposal was never adopted by the WG.

Thanks for your time,
Aaron