Nobuyuki Sugio Hiroshi Aono Sadayuki Hongo Toshinobu Kaneko A Study on Higher Order Differential Attack of KASUMI. 14-21 2007 90-A IEICE Transactions 1 http://dx.doi.org/10.1093/ietfec/e90-a.1.14 db/journals/ieicet/ieicet90a.html#SugioAHK07