Re: [Acme] Issue: Allow ports other than 443

Rob Stradling <rob.stradling@comodo.com> Thu, 26 November 2015 11:43 UTC

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To: Stephen Farrell <stephen.farrell@cs.tcd.ie>, Yoav Nir <ynir.ietf@gmail.com>
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From: Rob Stradling <rob.stradling@comodo.com>
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Date: Thu, 26 Nov 2015 11:43:49 +0000
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Cc: Phillip Hallam-Baker <phill@hallambaker.com>, Eliot Lear <lear@cisco.com>, IETF ACME <acme@ietf.org>, Russ Housley <housley@vigilsec.com>, Peter Eckersley <pde@eff.org>, Martin Thomson <martin.thomson@gmail.com>
Subject: Re: [Acme] Issue: Allow ports other than 443
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On 26/11/15 11:37, Stephen Farrell wrote:
<snip>
> True. A port-specific cert would only work with updated browsers
> which I guess is a fairly fatal objection to the idea. Ah well.

Is it worth considering requiring proof of control of (some particular 
combination of) _multiple_ ports rather than just a single port?  Would 
that strengthen the validation in any meaningful way?

-- 
Rob Stradling
Senior Research & Development Scientist
COMODO - Creating Trust Online