phc-discussions - Re: PHC finalists tweaks (SUBMITTERS, please read carefully)

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Date: Tue, 13 Jan 2015 16:03:27 +0100
From: Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: PHC finalists tweaks (SUBMITTERS, please read carefully)

Reminder: the deadline for tweaks is January 31. Thanks!

On Tue, Dec 9, 2014 at 3:38 PM, Jean-Philippe Aumasson
<jeanphilippe.aumasson@...il.com> wrote:
> As announced yesterday the PHC panel selected 9 finalists: Argon,
> battcrypt, Catena, Lyra2, Makwa, Parallel, POMELO, Pufferfish,
> yescrypt.
>
> Finalists are an intermediate shortlist before the final selection of
> one or more winners around Q2 2015.
>
> Submitters of a finalist are now given a chance to make minor changes
> to their algorithm: Submitters have until January 31, 2015 to submit
> the final version of their algorithm. If the final version is
> identical to the current version, submitters don't need to send
> anything. If the final version differs from the current version,
> submitters should send an email to submissions@...sword-hashing.net
> including:
>
> * a revised submission package (including updated specs and reference
> implementation); either as an attachment or as a URL
>
> * a description of the tweak proposed and some rationale for this tweak
>
> The panel will examine the proposed tweak and will then respond
> whether or not the final version of the algorithm is accepted.
>
> There's no formal definition of an acceptable tweak, but we plan to
> accept any change that does not change fundamentally the algorithm.
> For example, the tweak may consist in replacing BLAKE2 by SHA-512 as a
> core primitive; in replacing a XOR by an ADD in some internal
> algorithm; in changing the number of rounds of some function from 10
> to 12; etc.
>
> We also encourage submitters to polish the submission document and the
> reference implementation of their algorithm. The clearer and the more
> convincing, the easier it will be for the panel to understand the
> merits of the algorithm and to assess it fairly against other
> submissions.
>
> Inquiries to the panel may be addressed to this (public) mailing list,
> or to the private distribution list panel@...sword-hashing.net.
>
>
> Thank you!