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Re: [TLS] (selection criteria for crypto primitives) Re: sect571r1

Rene Struik <rstruik.ext@gmail.com> Thu, 16 July 2015 13:49 UTC

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Date: Thu, 16 Jul 2015 09:49:30 -0400
From: Rene Struik <rstruik.ext@gmail.com>
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To: "Blumenthal, Uri - 0553 - MITLL" <uri@ll.mit.edu>, Tony Arcieri <bascule@gmail.com>
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Subject: Re: [TLS] (selection criteria for crypto primitives) Re: sect571r1
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Of potential interest to this group:

Steven Galbraith's perspective on papers, such as IACR ePrint 2015-310:
https://ellipticnews.wordpress.com/2015/04/13/elliptic-curve-discrete-logarithm-problem-in-characteristic-two/

Best regards, Rene

On 7/16/2015 9:08 AM, Blumenthal, Uri - 0553 - MITLL wrote:
> I think you convinced me. And to think of it, I never did like binary 
> curves. :-)
>
> No binary curves for the future. :-)
>
> Tnx!
>
> Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network.
> *From: *Tony Arcieri
> *Sent: *Wednesday, July 15, 2015 22:32
> *To: *Rene Struik
> *Cc: *<tls@ietf.org>
> *Subject: *Re: [TLS] (selection criteria for crypto primitives) Re: 
> sect571r1
>
> ‎
> To respond more specifically to your concerns:
>
> On Wed, Jul 15, 2015 at 6:42 PM, Rene Struik <rstruik.ext@gmail.com 
> <mailto:rstruik.ext@gmail.com>> wrote:
>
>     It seems prudent to keep some diversity of the gene pool and not
>     only have curves defined over prime curves. Similarly, one should
>     perhaps have some diversity of gene pool criteria within the set
>     of recommend curves and not only include special primes. Should
>     some problem with a particular subclass show up over time, one
>     then at least has other classes available.
>
>
> Binary curves in particular are showing warning signs of potential 
> future security issues:
>
> https://eprint.iacr.org/2015/310.pdf
>
> I think even if we don't completely pare down the TLS curve portfolio 
> to the list I suggested, if nothing else I would like to see binary 
> curves removed.
>
> -- 
> Tony Arcieri
> ‎


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