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Date: Thu, 10 Jan 2013 18:43:58 +0100
From: Albert Veli <albert.veli@...il.com>
To: john-dev@...ts.openwall.com
Subject: sha1

Hi!

I just saw a blogpost linking to this optimized sha1 implementation:

https://hashcat.net/p12/

Original blog post here (swedish):
http://secworks.se/2013/01/nytt-satt-att-optimera-sha-1/

In short, the creator of hashcat analyzed sha1 and found out 21% of the
xor-operation cancel out... This leads to the possibility to optimize the
implementation. I guess the john code could also use this optimization.


Regards,

Albert

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