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Re: [TLS] RESOLVED (Re: [sasl] lasgt call comments (st Call:

Simon Josefsson <simon@josefsson.org> Mon, 02 November 2009 15:55 UTC

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From: Simon Josefsson <simon@josefsson.org>
To: mrex@sap.com
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Date: Mon, 02 Nov 2009 16:55:48 +0100
In-Reply-To: <200911021459.nA2Exi67028763@fs4113.wdf.sap.corp> (Martin Rex's message of "Mon, 2 Nov 2009 15:59:44 +0100 (MET)")
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Cc: channel-binding@ietf.org, sasl@ietf.org, Nicolas Williams <Nicolas.Williams@sun.com>, tls@ietf.org
Subject: Re: [TLS] RESOLVED (Re: [sasl] lasgt call comments (st Call:
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Martin Rex <Martin.Rex@sap.com> writes:

> It might be easier to _NOT_ key on the finished message, but on the
> master secret instead.

That was my conclusion as well, hence
http://tools.ietf.org/html/draft-josefsson-sasl-tls-cb-00
which uses the TLS PRF interface.

For -02 I also added hashing the Finished message, to match the
semantics for connection/session (regardless of its definition) of
draft-altman-tls-channel-bindings, but I'd prefer to avoid it
completely.

/Simon

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