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%.
S-Box substitution and inverse S-Box substitution are the major bottleneck [or AES algorithm, which directly a{{ect the speed o{ AES chip. On the basis of optimizing Q-M simplifying method, this paper proposes an expression method to implement the S-gox 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.
出处
《微电子学与计算机》
CSCD
北大核心
2014年第1期112-115,共4页
Microelectronics & Computer
基金
国家"八六三"计划项目(2012AA012402)
国家自然科学基金(61073173)
清华大学自主研发计划(2011Z05116)
关键词
AES算法
S盒替换
逆S盒替换
Q—M化简法
表达式方法
AES algorithm
S-Box substitution
inverse S-Box substitution
Q-M simplifying method
expression method
