We define affine equivalence of S-boxes with respect to modular addition, and explore its use in cryptanalysis. We have identified classes of small bijective S-boxes with respect to this new equivalence, and experimentally computed their properties.

中文翻译：

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小型双射S盒相对于模块化加法的密码学性质

我们定义了关于模块化加法的S盒的仿射等效性，并探讨了其在密码分析中的用途。我们已经针对这种新的等效性确定了小双射S形盒的类别，并通过实验计算了它们的性质。