Re: [kitten] draft-hansen-scram-sha256 and incorporating session hashing for channel binding

Nico Williams <nico@cryptonector.com> Sat, 23 May 2015 21:43 UTC

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Date: Sat, 23 May 2015 16:43:51 -0500
From: Nico Williams <nico@cryptonector.com>
To: Simon Josefsson <simon@josefsson.org>
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Subject: Re: [kitten] draft-hansen-scram-sha256 and incorporating session hashing for channel binding
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On Sat, May 23, 2015 at 10:39:46PM +0200, Simon Josefsson wrote:
> > There is no need to define a new channel binding.  Existing TLS
> > implementations need to be fixed regardless.  There's nothing GSS- or
> > SASL-mechanism-specific here.
> 
> There is, since no GS2 mechanism is secure with tls-unique without
> tls-session-hash.  The fault is not GSS/SASL's, but as far as I

TLS needs fixing regardless.  tls-unique is perfectly fine when the
session hash is used.

Nico
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