摘要
本文提出了一种轻量级分组密码算法ASD,该算法明文长度为64比特,密钥长度为80比特和128比特。算法整体采用SPN结构,混淆层采用16个并置的S盒运算,其中S盒为最优S盒;扩散层为PRESENT该部件的旋转。通过混合整数线性规划(MILP)寻找最小活跃S盒个数进行安全性分析,结果表明ASD具有足够的安全冗余。
This paper proposes a lightweight block cipher algorithm ASD, which has a plaintext length of 64 bits with key length of 80 bits and 128 bits. The algorithm adopts SPN structure as a whole, and the confusion layer adopts 16 concurrent S box operations, of which the S box is the optimal S box. The diffusion layer is present for the rotation of the part. Security analysis was performed by mixed in-teger linear programming (MILP) to find the minimum number of active S boxes, and the results showed that ASD had sufficient security margins.
出处
《应用数学进展》
2022年第7期4690-4697,共8页
Advances in Applied Mathematics
