Functions with low differential uniformity can be used in a block cipher as S-boxes since they have good resistance to differential attacks. In this paper we consider piecewise constructions for permutations with low differential uniformity. In particular, we give two constructions of differentially 6-uniform functions, modifying the Gold function and the Bracken–Leander function on a subfield.

中文翻译：

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来自已知 4-uniform 函数的微分低均匀排列

具有低差分一致性的函数可以在分组密码中用作 S 盒，因为它们对差分攻击具有良好的抵抗力。在本文中，我们考虑具有低差分均匀性的排列的分段构造。特别地，我们给出了两个微分 6-均匀函数的构造，修改了子域上的 Gold 函数和 Bracken-Leander 函数。