[106217] in cryptography@c2.net mail archive
Elcomsoft trying to patent faster GPU-based password cracker
daemon@ATHENA.MIT.EDU (mheyman@gmail.com)
Wed Oct 24 15:59:46 2007
Date: Wed, 24 Oct 2007 13:25:29 -0400
From: "mheyman@gmail.com" <mheyman@gmail.com>
To: Cryptography <cryptography@metzdowd.com>
From:
<http://www.elcomsoft.com/EDPR/gpu_en.pdf>
Moscow, Russia - October 22, 2007 - ElcomSoft Co. Ltd. has
discovered and filed for a US patent...Using the "brute force"
technique of recovering passwords, it was possible, though
time-consuming, to recover passwords from popular
applications. For example...Windows Vista uses NTLM hashing
by default, so using a modern dual-core PC you could test up to
10,000,000 passwords per second, and perform a complete
analysis in about two months. With ElcomSoft's new technology,
the process would take only three to five days..Today's [GPU]
chips can process fixed-point calculations. And with as much as
1.5 Gb of onboard video memory and up to 128 processing
units, these powerful GPU chips are much more effective than
CPUs in performing many of these calculations...Preliminary
tests using Elcomsoft Distributed Password Recovery product
to recover Windows NTLM logon passwords show that the
recovery speed has increased by a factor of twenty, simply by
hooking up with a $150 video card's onboard GPU.
-Michael Heyman
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