phc-discussions - Re: [PHC] "Why I Don't Recommend Scrypt"

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Message-ID: <CAHOTMVK1=zaqQQd_4Z3SLfXcGRy-Au1uf9-8334B8tJ=KmyuEA@mail.gmail.com>
Date: Thu, 13 Mar 2014 14:02:28 -0700
From: Tony Arcieri <bascule@...il.com>
To: "discussions@...sword-hashing.net" <discussions@...sword-hashing.net>
Subject: Re: [PHC] "Why I Don't Recommend Scrypt"

On Thu, Mar 13, 2014 at 1:37 PM, Patrick Mylund Nielsen <
patrick@...rickmylund.com> wrote:

> I understand what you are saying, but I am completely unconvinced that
> this hypothetical attack is any reason whatsoever that we should discourage
> people from strengthening their password digests. (Not to mention most
> companies won't *ever* have a DDoS problem!) Where is the evidence?
>

Yes, and my point was that DoS is a much more convincing argument than the
OP made in his blog post. Couple nary a mention of DoS with the 10X
inflated numbers re: scrypt and I'd say the OP does not know what he's
talking about.

I'm not saying people should use weaker PHFs, merely that the tradeoffs
were ill-considered here. I also don't think you were fully considering the
tradeoffs either, Patrick.

-- 
Tony Arcieri

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