In this recipe, we will use the ATI Stream to crack password hashes. The ATI Stream is similar to CUDA in that it is a parallel computing platform that increases computing performance by harnessing the power of the graphics processing unit (GPU). Over the years, GPU processing power has increased dramatically, which allows us the ability to use it for our computational purposes. For demonstration purposes, we will use OclHashcat-plus to crack the passwords. OclHashcat comes in two versions: plus and lite. Both are included with BackTrack 5.
An ATI Stream-supported graphics card is required to complete this recipe.
Let's begin the process of working with OclHashcat-plus: