supported by the National Nature Science Foundation of China under Grant Nos.61872381,61872359,61862011,and 61402522;supported by Guangxi Key Laboratory of Cryptography and Information Security under Grant No.GCIS201704
This paper is twofold. The first is devoted to study a class of quadratic rotation symmetric S-boxes(RSSBs) which was presented by Gao G, et al., Constructions of quadratic and cubic rotation symmetric bent functions,...
The so-called selected permutations on the set of the first 16 non-negative integers are classified under the action of a certain motion group.Adata-base consisted of the class representatives has been provided.
Research supported by National Natural Science Fundation of China
The concept of key-entropy drop in an S-box is introduced.It is established that theoutput functions of the permutations composing an S-box belong to three patterns of key-entropydrop.An analysis of the distribution o...
Supported by the National Natural Science Foundation of China
An integrated analysis of the design criteria for the S-boxes used in the DES is made.Among others,the exclusion principle between the degree of nonlinearity and the degree of I/O—correlation immunity for partial var...