• Statistical and Algebraic Properties of DES 

      Fauskanger, Stian; Semaev, Igor A. (Lecture Notes in Computer Science ; 9589, Chapter, 2016)
      D. Davies and S. Murphy found that there are at most 660 different probability distributions on the output from any three adjacent S-boxes after 16 rounds of DES. In this paper it is shown that there are only 72 different ...