The Lazy Genius

Security News & Brain Dumps from Xavier Ashe, a Bit9 Client Partner

Developer deploys graphics cards to accelerate password cracks

Posted by Xavier Ashe on October 24, 2007

Nvidia's GeForce 8 series of graphics chips can be used to crack
Windows NT LAN Manager (NTLM) passwords 25 times more quickly than was
previously possible, security software developer Elcomsoft has claimed.

The Russia-based company this week announced the second major
release of its Distributed Password Recovery application, a tool
designed to recover forgotten or lost passwords for a wide range of
application and document types, including PDP-protected ZIP files,
Adobe Acrobat PDFs, Lotus Notes ID files and Microsoft Office documents.

document.write('\x3Cscript src=”http://ad.uk.doubleclick.net/adj/reg.security.4159/enterprise;'+RegExCats+GetVCs()+'pid='+RegId+';'+RegKW+'maid='+maid+';test='+test+';pf='+RegPF+';dcove=d;sz=336×280;tile=3;ord=' + rand + '?” type=”text/javascript”>\x3C\/script>');

Elcomsoft admits its software uses “brute force” to crack a file's
password, thus exposing the lost key to the user. The technique
essentially tries all possible password combinations until it finds the
one that fits. It works, but it's time time-consuming.

“Using a modern dual-core PC you could test up to 10m passwords per
second,” Elcomsoft said, “and perform a complete analysis in two
months.”

But use a GeForce 8 series card and Nvidia's Compute Unified Device
Architecture (CUDA) tools to run the cracking algorithms on the GPU
rather than the CPU, and you can finish up in 3-5 days, the developer
claimed.

“Since high-end PC mother boards can work with four separate video
cards, the future is bright for even faster password recovery
applications,” it added.

CUDA was launched
almost a year ago to enable scientists and engineers to use graphics
cards typically aimed at gamers for more serious number-crunching
applications. The GeForce 8 series of GPUs went on sale in March 2007.

From The Register.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

 
%d bloggers like this: