Wednesday, February 11, 2009

CUDA and bruteforcing

Did you hear about Pyrit?

"Pyrit is implementation allows to create massive databases, pre-computing part of the WPA/WPA2-PSK authentication phase in a space-time-tradeoff"

Pyrit exploit the power of the new GPU, like the Nvidia family that support CUDA.

"CUDA is the compute engine in NVIDIA graphics processing units or GPUs, that is accessible to software developers through industry standard programming languages"
Just look at this comparison of pyrit running on different graphic cards:

Well I wanted to know the performance of my GPU's, so i did some test on my Macbook Pro unibody, that has two Nvidia graphic cards on board, and here are the results:

Nvidia 9400 M

Nvidia 9600 GT

With the 9400 M i got 690.67PMK/s  more than 2x of the CPU Core2duo 2.4Ghz, and with the 9600 GT i got 912.77 PMK/s almost 4x !!  

Now it will be sweet to have both graphic cards working at the same time ;)

Pyrit is included in Backtrack  4 and in the next Pentoo release!

Also i tested another CUDA based bruteforcer, "Multihash Bruteforcer":

The world's fastest cross-platform MD4/MD5/NTLM cracking
 for Windows/Mac/Linux

Here are the results on my Macbook Pro:

I guess that this tool will improve over time, but they are giving great results right now.

Enjoy your password cracking


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