Research on the Security Criterion of S-Boxes Against Division Property  

作　　者：WANG Senpeng HU Bin GUAN Jie SHI Tairong ZHANG Kai 

机构地区：[1]PLA SSF Information Engineering University,Zhengzhou 450001,China

出　　处：《Chinese Journal of Electronics》2021年第1期85-91,共7页电子学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61572516,No.61802437,No.61902428)。

摘　　要：As a generalized integral property,division property was proposed by Todo at EUROCRYPT 2015.We propose a new security criterion of S-boxes against division property and prove that it is invariant under permutation-xor equivalence.Based on the criterion,the division properties of some important 4-bit S-boxes are showed.Then,we apply it to improve the resistance of ciphers against division-property-based integral attacks while keeping the same security level against other attacks.Specifically,the resistance of the cipher PRESENT against division-property-based integral attack is improved by 2 rounds,and the resistance of the cipher LBlock against division-property-based integral attack is improved by 1 round.

关 键 词：S-BOX Division property Permutation-xor equivalence Integral attack 

分 类 号：TN918.1[电子电信—通信与信息系统]