密钥控制的多S盒Rijndael算法

Key-controlled Rijndael algorithm with multiple S-boxes

根据AESS盒的设计思想构造出了一批密码性能良好的S盒,并从方差的角度对它们的雪崩概率进行了分析。在此基础上,对Rijndael算法中的字节代换步骤SubBytes进行改进,从而提出了一种基于密钥控制的多S盒的Rijndael算法。实验结果表明,改进后的算法对差分攻击的抵抗能力有所提高,雪崩效应更趋合理。

According to the design criterion of S-box in Rijndael algorithm, a number of S-boxes with good cryptographic properties were constructed, and the avalanche probabilities of these S-boxes were analyzed from variance point of view. Based on these studies, a key-controlled Rijndael algorithm with multiple S-boxes was proposed with the improvement of SubBytes algorithm in Rijndael. Experimental results show that the improved algorithm has stronger ability to resist differential attack, and the avalanche effect of the algorithm is more reasonable.