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Date: Thu, 13 Mar 2014 14:02:28 -0700
From: Tony Arcieri <>
To: "" <>
Subject: Re: [PHC] "Why I Don't Recommend Scrypt"

On Thu, Mar 13, 2014 at 1:37 PM, Patrick Mylund Nielsen <> 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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