基于动态S盒的AES加密算法设计  

Design of AES Encryption Algorithm Based on Dynamic S-box

作　　者：付婷婷 FU Tingting

机构地区：[1]上海大学通信与信息工程学院

出　　处：《计量与测试技术》2025年第1期115-118,共4页Metrology & Measurement Technique

摘　　要：针对AES算法的S盒在仿射和迭代输出周期的短周期现象,以及固定S盒易成为加密算法的攻击薄弱点的问题,本文提出一种动态S盒的加密算法DS-AES,并进行试验验证。结果表明:该方法获得S盒的仿射变化和迭代输出的周期分别达到最大值4和16,且严格雪崩准则距离提升了7.9%,不仅在扩散和混淆性表现更优,而且安全性更高。Aiming at the short period of the S-box of AES algorithm in affine and iterative output cycle,and the problem that the fixed S-box is easy to become the weak point of the encryption algorithm,a dynamic S-box encryption algorithm DS-AES is proposed and verified by experiments.The results show that the affine change and iteration output period of the S-box obtained by this method reach the maximum value of 4 and 16 respectively,and the strict avalanche criterion distance is increased by 7.9%,which not only has better performance in diffusion and confusion,but also has higher safety.

关 键 词：动态S盒 AES加密 代数性质 混沌映射 

分 类 号：TN918.1[电子电信—通信与信息系统]