CAJ | 학술논문

刘国强和金晨辉给出了动态S盒差分概率的定义，分析了其不可能差分的特性、最大差分概率的上界及可达性，这是首个从动态S盒的概念和性质方面的研究。沿着这个方向，本文给出动态线性概率、动态非线性度、动态代数次数、动态代数免疫阶等定义，分析了这些动态性能指标的界及可达性，并用仿真模拟的方法验证了定义的合理性和定理的正确性，同时还分析了动态S盒的性能随规模变化的规律。
류국강화금신휘급출료동태S합차분개솔적정의，분석료기불가능차분적특성、최대차분개솔적상계급가체성，저시수개종동태S합적개념화성질방면적연구。연착저개방향，본문급출동태선성개솔、동태비선성도、동태대수차수、동태대수면역계등정의，분석료저사동태성능지표적계급가체성，병용방진모의적방법험증료정의적합이성화정리적정학성，동시환분석료동태S합적성능수규모변화적규률。
LIU Guo-qiang and JIN Chen-hui gives the definition of differential probability for dynamic S-box, analyze the charicteristics of impossible difference and the upper-bound and accessibility of maximum differential probability for dynamic S-box. This is the first try on the research of dynamic S-box's defini-tion and properties. In light of this, the definitions of dynamic linear probability, dynamic nonlinearity, dy-namic algebraic degree and dynamic algebraic immunity are proposed,and the bounds of these cryptograph-ic criterions and the accessibility of these bounds analyzed. Simulation experiments verify the rationality and validity of the definitions. Meanwhile, the rule of dynamic property with the change of dynamic S-box's size is also given.