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[CHANNEL-BINDING] Re: draft-ietf-sasl-gs2 AD review comments

Nicolas Williams <Nicolas.Williams@sun.com> Tue, 09 October 2007 20:34 UTC

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Date: Tue, 09 Oct 2007 15:34:06 -0500
From: Nicolas Williams <Nicolas.Williams@sun.com>
To: Sam Hartman <hartmans-ietf@mit.edu>
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Cc: channel-binding@ietf.org, ietf-sasl@imc.org
Subject: [CHANNEL-BINDING] Re: draft-ietf-sasl-gs2 AD review comments
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On Tue, Oct 09, 2007 at 03:59:31PM -0400, Sam Hartman wrote:
>     Simon> I thought that channel binding data had to contain a unique
>     Simon> prefix which would appears to solve that problem, without
>     Simon> having to require that protocols encode the channel binding
>     Simon> type too.  If my assumption is correct, it would be useful
>     Simon> to clarify this in d-w-on-channel-binding.  No change in
>     Simon> GS2 seems necessary.  Nico?
> 
> I thought it was the responsibility of the application|framework to
> add the unique prefix.  The channel binding base draft provides a
> registry for this prefix, but I thought that the channel binding
> description did not include this prefix and left it up to the
> application.  If the channel binding format must include the prefix
> then I think we need to change the channel binding base draft.

Sam is correct.  In any case, I don't think the channel providing the
bindings should be providing the prefix.

Nico
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