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Date: Tue, 12 Nov 2013 19:33:04 +0100
From: Katja Malvoni <>
Subject: Re: bcrypt-parallella on 64-core (was: Katja's weekly
 report #13)

On Sat, Nov 9, 2013 at 10:09 PM, Katja Malvoni <> wrote:

> With the same code, performance on E16 system is 1194 c/s because I'm
> transferring whole inputs structure no matter whether keys or salt changed.

If I transfer keys only when changed, performance on E16 is 1207 c/s and on
E64 it's 4812 c/s.
And code seems to be reliable. I left "while :; do rm -f john.log john.pot;
seq 0 49999 | sudo -E LD_LIBRARY_PATH=$LD_LIBRARY_PATH ./john -stdin
-form=bcrypt-parallella ~/pw-bcrypt-2salt-50k 2>&1 > /dev/null | fgrep
0:00; done" running for half an hour, it cracked all hashes on both E16 and
E64 system.


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