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Recent Results on Constructing Boolean Functions with (Potentially) Optimal Algebraic Immunity Based on Decompositions of Finite Fields

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Journal of Systems Science & Complexity 2019年第1期32卷 356-374页

作者： LIU Zhuojun WU Baofeng Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems Science Chinese Academy of Sciences State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences

Boolean functions with optimal algebraic immunity(OAI functions) are important cryptographic primitives in the design of stream ciphers. During the past decade, a lot of work has been done on constructing such functions, among which mathematics, especially ?nite ?elds, play an important role. Notably, the approach based on decompositions of additive or multiplicative groups of?nite ?elds turns out to be a very successful one in constructing OAI functions, where some original ideas are contributed by tu and deng(2012), Tang, et al.(2017), and Lou, et al.(2015). Motivated by their pioneering work, the authors and their collaborators have done a series of work, obtaining some more general constructions of OAI functions based on decompositions of ?nite ?elds. In this survey article, the authors review our work in this ?eld in the past few years, illustrating the ideas for the step-by-step generalizations of previous constructions and recalling several new observations on a combinatorial conjecture on binary strings known as the tu-deng conjecture. In fact, the authors have obtained some variants or more general forms of tu-deng conjecture, and the optimal algebraic immunity of certain classes of functions we constructed is based on these conjectures.

关键词： Additive decomposition algebraic immunity Boolean function multiplicative decomposition tu-deng conjecture

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