phc-discussions - Re: [PHC] pufferfish

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Message-ID: <CAOLP8p6gXJ6KWYA0qKSo87FT667d0A_x=8kuNWjbedytL8n+bQ@mail.gmail.com>
Date: Thu, 27 Mar 2014 19:38:27 -0400
From: Bill Cox <waywardgeek@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] pufferfish

On Thu, Mar 27, 2014 at 7:35 PM, Bill Cox <waywardgeek@...il.com> wrote:
> On Thu, Mar 27, 2014 at 7:10 PM, Solar Designer <solar@...nwall.com> wrote:
> Great, thanks.  Back on topic, my #1 request for PufferFish would be
> having a 4KiB-ish block size with a user-defined repeat count, after
> which it would be mixed with another 4KiB block.  This could L1-cache
> compute-time harden the algorithm while being effective against GPUs,
> couldn't it?  With a low repeat count, it could hash a lot of external
> DRAM.  I like the simplicity, but busting out of L1 cache seems
> problematic.
>
> Bill

P.S.  My #1 request for Escript (sorry, again off topic) would be a
SkinnyCat-like stripped down version of the essence of your favorite
parts of the algorithm.  I got mine done in something like 30 hours,
so there's still time.

Bill