Cracking wifi password with pyrit and NVIDIA GPU on Amazon AWS

WPA algorithm is very secure, and to get the password usually we have only one way - to brute force it, which could take huge time if password is strong enough. But what if instead of using regular CPUs we would use a power of GPU? Amazon says, that we can use up to 1,536 CUDA cores on g2.2xlarge instance, which costs $0.65 per Hour. Sounds very promising, so let's see how it can help us to speed up password brute force.

Below I will give step-by-step tutorial on how to deploy Amazon GPU instance and run pyrit (python tool) to crack password using GPU.