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arXiv 2008.12183cs.ITmath.IT
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有限域上几类具有低c-微分一致性的幂函数

Some classes of power functions with low c-differential uniformity over finite fields

Zhengbang Zha, Lei Hu

摘要:

具有低c-差分一致性的函数对某些类型的差分密码分析具有最佳抵抗力。本文研究了有限域上幂函数的c-微分一致性。基于几种已知的几乎完全非线性函数,给出了几类具有$_{c}Δ_f\leq3$的幂函数$f(x)=x^d$.特别地,提出了两类新的完全c-非线性幂函数。

英文摘要:

Functions with low c-differential uniformity have optimal resistance to some types of differential cryptanalysis. In this paper, we investigate the c-differential uniformity of power functions over finite fields. Based on some known almost perfect nonlinear functions, we present several classes of power functions $f(x)=x^d$ with $_{c}Δ_f\leq3$. Especially, two new classes of perfect c-nonlinear power functions are proposed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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