Re: [secdir] secdir review of draft-ietf-httpbis-tunnel-protocol-04

Martin Thomson <martin.thomson@gmail.com> Wed, 10 June 2015 21:28 UTC

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Date: Wed, 10 Jun 2015 14:28:39 -0700
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From: Martin Thomson <martin.thomson@gmail.com>
To: Scott Kelly <scott@hyperthought.com>
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Cc: draft-ietf-httpbis-tunnel-protocol.all@tools.ietf.org, The IESG <iesg@ietf.org>, "secdir@ietf.org" <secdir@ietf.org>
Subject: Re: [secdir] secdir review of draft-ietf-httpbis-tunnel-protocol-04
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On 10 June 2015 at 13:10, Scott Kelly <scott@hyperthought.com>; wrote:
> On Jun 10, 2015, at 1:02 PM, Martin Thomson <martin.thomson@gmail.com>; wrote:
>> Would it make more sense like this?
>>
>>          A proxy can use the value of the ALPN header field to more cleanly and
>>          efficiently reject requests for a CONNECT tunnel.  Exposing protocol
>>          information at the HTTP layer allows a proxy to deny requests earlier,
>>          with better error reporting (such as a 403 status code).  The ALPN
>>          header field can be falsified and is therefore not sufficient basis
>>          for authorizing a request.
>
> Yes.

Thanks Scott.

https://github.com/httpwg/http-extensions/commit/3fb72e95