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Re: [hybi] Handshake was: The WebSocket protocol issues.

Adam Barth <ietf@adambarth.com> Tue, 05 October 2010 00:46 UTC

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From: Adam Barth <ietf@adambarth.com>
Date: Mon, 04 Oct 2010 17:46:45 -0700
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To: Greg Wilkins <gregw@webtide.com>
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Cc: hybi <hybi@ietf.org>
Subject: Re: [hybi] Handshake was: The WebSocket protocol issues.
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On Mon, Oct 4, 2010 at 5:20 PM, Greg Wilkins <gregw@webtide.com> wrote:
> On 3 October 2010 03:24, Adam Barth <ietf@adambarth.com> wrote:
>> I'm saying these issue are subtle and require careful thought.
>
> Exactly - and careful thought and analysis is what some are trying to
> achieve in this thread.
>
> It is not really helpful to imply that we are not giving it careful
> thought or  that we are somehow not qualified enough for our careful
> thought to count.
>
> Your DNS example was a good one for us to analyse.  But in the end,
> it re-enforced that our defence in depth is indeed working and that
> DNS is safe from arbitrary XHR HTTP, so it is safer from our more
> restricted HTTP handshake.  It is not an argument against the proposed
> changes to the handshake.
>
> So if you have other possible attack vectors, please post them and we
> can also walk through the defences and see how they stand up.  With
> such careful thought and analysis we might actually make progress on
> the protocol proposals.

I'm working on a detailed analysis.  Hopefully I'll have it ready to
post to the list sometime this week.

Adam

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