【摘要】 S盒替换与逆S盒替换是AES算法性能的主要瓶颈,它直接影响AES芯片的运算速度.在优化Q-M化简法基础上,提出了一种实现AES算法中S盒替换和逆S盒替换的表达式方法,这种表达式方法相比于普遍使用的查表法,其延时减小了8.5%,面积减小了27.4%,功耗减小了17%.更多还原

【Abstract】 S-Box substitution and inverse S-Box substitution are the major bottleneck for AES algorithm,which directly affect the speed of AES chip.On the basis of optimizing Q-M simplifying method,this paper proposes an expression method to implement the S-Box substitution and inverse S-Box substitution in AES algorithm.Compared with the widespread use of the look-up-table method,the expression method can reduce the delay,area and power of circuit by 8.5%,27.4%and 17%respectively.更多还原