Any idea for a simple graduation job using CUDA?

Hi guys, i’m new here and i would like you to help me in finding something simple to do for my final graduation project. I was thinking about using parallel computing + CUDA to increase performance of something. I tried to use cryptography algorithms (like Elyptic Curve Criptography ones) but they’re too complex and i would take too long to develop something like that. Any idea of what can be (a little bit easy) to develop, something new that i could make comparisons between the sequencial thing and the parallel one, or even something already done with something i could change. I’m a little desperate 'cause i have to submit a tittle today.

Thanks for the attention.