Re: [Cfrg] 25519 naming

Tony Arcieri <bascule@gmail.com> Tue, 26 August 2014 21:43 UTC

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From: Tony Arcieri <bascule@gmail.com>
Date: Tue, 26 Aug 2014 14:42:48 -0700
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Subject: Re: [Cfrg] 25519 naming
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On Mon, Aug 25, 2014 at 4:43 PM, D. J. Bernstein <djb@cr.yp.to>; wrote:

> It has become increasingly common for "Curve25519" to refer to an
> elliptic curve, while the original paper defined "Curve25519" as an
> X-coordinate DH system using that curve.


Indeed!

https://twitter.com/bascule/status/393221414775312384


> Kenny and others in Toronto recommended changing terminology to clearly
> separate these three items.


+1


> Let me suggest the following terminology:
>
>    * "X25519" is the recommended Montgomery-X-coordinate DH function.
>    * "Ed25519" is the recommended Edwards-coordinate signature system.
>    * "Curve25519" is the underlying elliptic curve.
>

Seems good, thank you!

--
Tony Arcieri