phc-discussions - Re: [PHC] A must read...

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Date: Mon, 13 Jan 2014 17:32:14 -0800
From: Andy Lutomirski <luto@...capital.net>
To: discussions <discussions@...sword-hashing.net>
Subject: Re: [PHC] A must read...

On Mon, Jan 13, 2014 at 4:37 PM, Marsh Ray <maray@...rosoft.com> wrote:
> It always bears repeating that the password-cracking attacker typically has
> many candidate guesses he can try in parallel, and usually has many hash
> values he wishes to target. How do you prevent him from hiding latencies in
> long pipelines? (longer than those that would be tolerable in defenders’
> branch-happy general purpose systems)
>

Memory.  If each pipeline stage requires 500MB of DRAM, then this gets
rather expensive.

--Andy