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List:       cfrg
Subject:    Re: [Cfrg] No new curves for SPAKE?
From:       Paul Lambert <paul () marvell ! com>
Date:       2015-05-05 6:25:21
Message-ID: D16DADA4.666D6%paul () marvell ! com
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On 5/4/15, 10:42 PM, "Watson Ladd" <watsonbladd@gmail.com> wrote:

>On Mon, May 4, 2015 at 8:48 PM, Paul Lambert <paul@marvell.com> wrote:
>>
>> I was wondering Š. why does the SPAKE draft
>> (https://tools.ietf.org/html/draft-irtf-cfrg-spake2-01) not use (
>> https://tools.ietf.org/html/draft-irtf-cfrg-curves-02 )?
>
>As of now, there is no point format specified that permits addition.
>When such a point is specified, I will add the curves to the draft.

Yes, thatıs half my point in asking Š
Also, there is no Œsafeı point addition algorithm documented in the
 ıcurvesı specification.


>>
>> The point format is also not compatible with the new CFRG curve and
>>uses a
>> SEC1 compressed point.
>
>The draft assumes that every group has a unique point format, and uses
>that format. It does not specify a new format.

Yes, itıs not new, just different.

Paul


>
>>
>> Paul
>>
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>>
>
>
>
>-- 
>"Man is born free, but everywhere he is in chains".
>--Rousseau.


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