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Re: Client-Cert Header draft

James <james.ietf@gmail.com> Wed, 22 April 2020 13:54 UTC

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To: Graham Leggett <minfrin@sharp.fm>, Brian Campbell <bcampbell@pingidentity.com>
Cc: HTTP Working Group <ietf-http-wg@w3.org>
References: <CA+k3eCRQhuS9TyEVdF6ZAfLSyPngjDLvctUTc++2Ok+RJmw0qA@mail.gmail.com> <5AC09590-1978-4EAB-B5D9-B8E126ED839C@sharp.fm>
From: James <james.ietf@gmail.com>
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Date: Wed, 22 Apr 2020 13:56:34 +0100
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Subject: Re: Client-Cert Header draft
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On 21/04/2020 23:17, Graham Leggett wrote:
> Having read the draft, one thing I would suggest is that the ability 
> exists for the contents of the Client-Cert header to be signed, so that 
> anyone who cares can verify that the header came from where it said it 
> came from ... (I wouldn’t make this a MUST requirement, but maybe  > RECOMMENDED perhaps).

+1 for it not being a MUST as I think that signing the header should 
only be RECOMMENDED or SHOULD be present when the TRRP to Origin 
connection is NOT using TLS itself. Perhaps this could be offered as a 
separate header itself. The draft appears to focus around no TLS being 
used from TRRP to Origin, I have uses cases where it exists - such as a 
publicly trusted CA used on the TRRP's server certificate, but an 
internal CA used to the Origin.

- J

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