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Date: Sun, 18 Aug 2013 23:08:32 +0400
From: Solar Designer <>
Subject: Re: Parallella: bcrypt


I unexpectedly managed to trigger the problem, although just once so far:

solar@...aro-ubuntu-desktop:~/k2/JohnTheRipper/run$ while :; do rm -f john.log john.pot; seq 0 49999 | ./ -stdin -form=bcrypt-parallella ~/pw-bcrypt-2salt-50k 2>&1 > /dev/null | fgrep 0:00; done
49999g 0:00:00:44 1132g/s 1132p/s 2264c/s 28325KC/s 49984..49999
50000g 0:00:00:44 1132g/s 1132p/s 2264c/s 28324KC/s 49984..49999
50000g 0:00:00:44 1135g/s 1135p/s 2270c/s 28395KC/s 49984..49999
50000g 0:00:00:44 1130g/s 1130p/s 2260c/s 28273KC/s 49984..49999
50000g 0:00:00:44 1131g/s 1131p/s 2263c/s 28311KC/s 49984..49999

This is when running with two different salts.  Maybe having different
salts is a prerequisite.  Or maybe the hash count not being a multiple
of 32 is a prerequisite.  (100k and 1M were a multiple of 32, but 50k is


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