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[Cfrg] Poll results: Elliptic Curves - byte order

Alexey Melnikov <alexey.melnikov@isode.com> Tue, 31 March 2015 03:15 UTC

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Date: Tue, 31 Mar 2015 04:15:03 +0100
From: Alexey Melnikov <alexey.melnikov@isode.com>
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Subject: [Cfrg] Poll results: Elliptic Curves - byte order
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On 19/03/2015 18:33, Alexey Melnikov wrote:
> CFRG chairs are starting discussion of the next topic:
>
> Q5: Implementations of curve 25519 are using little-endian byte order 
> (http://en.wikipedia.org/wiki/Endianness). This is a poll where you 
> can choose one of the following 3 options:
>
> 1) Use little-ending byte order for both curve 448 and curve 25519
12 people in favour of this choice.
> 2) Use little-ending byte order for curve 25519, but use big-endian 
> (a.k.a. network byte order) for curve 448
2 people in favour of this choice.
> 3) Use big-endian for both curves 25519 and 448.
Nobody in favour of this choice.

Additionally, 4 people in favour of either 1) or 2)
1 person in favour of 1) or 3)

So in summary: there is clear enough preference for choice #1.

I would ask people to stop discussing this topic in another thread 
started by Phillip Hallam-Baker, as it seems at this point people just 
recycling arguments they've made earlier. And Stephen also commented 
that CFRG participants should not speculate on how IESG will respond to 
use of little-endian in TLS and other places.

Best Regards,
Alexey, on behalf of chairs.

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