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Re: [TLS] TLS Paris Interim Minutes

Sean Turner <turners@ieca.com> Mon, 24 November 2014 22:16 UTC

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From: Sean Turner <turners@ieca.com>
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Date: Mon, 24 Nov 2014 17:16:12 -0500
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To: Hugo Krawczyk <hugo@ee.technion.ac.il>
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Subject: Re: [TLS] TLS Paris Interim Minutes
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I updated interim minutes to incorporate your changes.

spt

On Nov 06, 2014, at 04:51, Hugo Krawczyk <hugo@ee.technion.ac.il> wrote:

> Let me also clarify the following point from the minutes:
> 
> > The construct presented by Hugo was from the SKEME paper published in '91: http://webee.technion.ac.il/~hugo/skeme-lncs.ps
> 
> I referred to the paper when answering the question of whether this is a new design. I said that a similar design goes back to the above paper (from NDSS'96 not 91) which had actually many of the same motivations than the current proposal (PFS, identity protection, a uniform treatment of pre-shared key and re-key, etc). On the other hands, there are some significant differences in the new proposal such as the support of 0-RTT and server-only authentication. In cryptography little changes can introduce vulnerabilities so OPTLS needs to be considered as a new design for the sake of analysis (and there are important details to be nailed down, especially the key derivation definitions).
> 
> Hugo
> 
> 
> On Thu, Nov 6, 2014 at 1:06 AM, Sean Turner <turners@ieca.com> wrote:
> On Nov 05, 2014, at 09:56, Bodo Moeller <bmoeller@acm.org> wrote:
> 
> > Adam Langley <agl@google.com>:
> > On Wed, Nov 5, 2014 at 4:49 AM, Bodo Moeller <bmoeller@acm.org> wrote:
> >
> > > This isn't correct, and isn't what was said at the meeting. As discussed at
> > > the meeting, YouTube currently allows two cipher suites for video streams,
> > > TLS_RSA_WITH_AES_128_GCM_SHA256 and TLS_RSA_WITH_RC4_128_SHA, but Firefox
> > > doesn't support the former without ECDHE
> > > (https://bugzilla.mozilla.org/show_bug.cgi?id=1029179).
> >
> > Some locations additionally support ECDHE_RSA_AES_128_GCM_SHA256,
> > which we are testing now.
> >
> > Yes, but the above is about correcting the 2014-10-21 minutes, not updating them to reflect the current status.
> >
> > Bodo
> 
> I’ll make sure these get updated.
> 
> spt
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