A New Version of the RC6 Algorithm, Stronger against χ2 Cryptanalysis

We analyze the χ cryptanalysis, one of the most successful cryptanalysis technique against the RC6 algorithm. We apply this type of cryptanalysis as distinction cryptanalysis as well as key-recovery cryptanalysis. We present a modified version of RC6 by introducing a very simple data-dependent swapping function in its structure. The conclusions inferred by… CONTINUE READING