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Re: [pkix] Edwards/DJB curves - New PKI(X) work?

Michael StJohns <mstjohns@comcast.net> Tue, 19 August 2014 16:01 UTC

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From: Michael StJohns <mstjohns@comcast.net>
Date: Tue, 19 Aug 2014 12:01:30 -0400
To: Erwann Abalea <eabalea@gmail.com>
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Subject: Re: [pkix] Edwards/DJB curves - New PKI(X) work?
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Sent from my iPad

> On Aug 19, 2014, at 6:46, Erwann Abalea <eabalea@gmail.com> wrote:
> 
> 
> 2014-08-18 20:02 GMT+02:00 Michael StJohns <mstjohns@comcast.net>:
>> 
>> In DJB's ED25519, the signature is actually a single integer, and tucked away in his paper is the notation that the representation of that integer is little endian.
> 
> Even in Ed25519 the signature consists of two 256bits integers. Little/big endian representation doesn't care here.
> R is a compressed version of a point (concatenation of y and lsb of x).
> S is the standard S.

*sigh* you're correct.  I misread a summary of the DJB paper.   Mike

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