报告人

曾祥勇

举办单位

科技处、学科办、研究生处、数统学院

报告题目

A Class of Quadrinomial Permutations with Boomerang Uniformity Four

报告时间

20201015下午4:30-5:50

报告地点

南区数统楼406

报告人

所属单位

湖北大学 数学与统计学学院

报告人职称/职务

教授,博士生导师,数统学院院长

报告内容简介

In Eurocrypt'18, Cid et al. proposed a new cryptanalysis tool called Boomerang Connective Table (BCT), to evaluate S-boxes of block ciphers. Later, Boura and Canteaut further investigated} the new parameter Boomerang uniformity for cryptographic S-boxes. It is of great interest to find new S-boxes with low Boomerang uniformity for even dimensions. In this topic, we discuss and prove that a class of permutation quadrinomials over F_{2^{2m}} withmodd has Boomerang uniformity four, which gives the fifth class of red such kind of permutation polynomials. Further, the occurrences of0and4in the BCTs of the investigated permutation polynomials are also completely determined.

 


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