A cipher strength evaluation system based on statistical methods.

Yukiyasu Tsunoo Ryoji Ohta Hiroshi Miyauchi Katsuhiro Nakamura A cipher strength evaluation system based on statistical methods. 83-92 2003 34 Systems and Computers in Japan 8 http://dx.doi.org/10.1002/scj.10163 db/journals/scjapan/scjapan34.html#TsunooOMN03