phc-discussions - Re: [PHC] Argon2

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Date: Tue, 5 May 2015 18:25:35 +0200
From: Krisztián Pintér <pinterkr@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] Argon2

Jean-Philippe Aumasson (at Tuesday, May 5, 2015, 4:59:35 PM):
> To clarify: I'd talk of optimizations rather than tweaks, after
> we've selected the winner. I'm not planning another round of tweaks
> and evaluations that would delay the process. If the panel selects
> some Argon2 variant as a winner, the final version may be optimized
> jointly with the authors. A bit like Keccak/SHA3 was optimized after being selected by NIST.

just ftr sha3 was not optimized after selection. the original nist
draft chose a different parametrization of keccak. but it was a
totally legit keccak instance. and the reason was that their
requirements wasn't carefully stated, so they fixed that, and
reparametrized keccak accordingly.