Effects of three kinds of cyclic shift transformation to rotational attack
Yunqian Li · Jisuanji yingyong yanjiu · 2014
This paper studied three kinds of circle shift transformation effect on the performance of rotational attack,using probability knowledge proved that the equal-word circle shift transformation had no influence on the attack mode and efficiency of rotational attack. It presented influence probability formulas on rotational attack of the longer-word circle shift transformation and the shorter-word circle shift transformation. These formulas show that if the rotational amount r is set to 1 the corresponding circle shift transformation preserves the rotational property at most.