Cryptanalysis of Hash Functions Using Advanced Multiprocessing

Every time it is more often to audit the communications in companies to verify their right operation and to check that there is no illegal activity. The main problem is that the tools of audit are inefficient when communications are encrypted. There are hacking and cryptanalysis techniques that allow intercepting and auditing encrypted communications with a computational cost so high that it is not a viable application in real time. Moreover, the recent use of Graphics Processing Unit (GPU) in high-performance servers is changing this trend. This article presents obtained results from implementations of brute force attacks and rainbow table generation, sequentially, using threads, MPI and CUDA. As a result of this work, we designed a tool (myEchelon) that allows auditing encrypted communications based on the use of hash functions.