On the rijndael page I see this note below the optimized code link : >IMPORTANT NOTE ! This code was written in order to clarify the mathematical >description, and to run the statistical test. Without modification, it should not >be used to encrypt files, or for any other application. What exactly does this mean? The code is not correct and functional? Mike http://www.esat.kuleuven.ac.be/~rijmen/rijndael/