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arXiv 2210.02207cs.ITmath.IT
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$\mathbb{F}_{2^n}$上APN幂函数的新结果

New results of $0$-APN power functions over $\mathbb{F}_{2^n}$

Yan-Ping Wang, Zhengbang Zha

摘要:

部分APN功能最近引起了研究者的特别兴趣。这对APN功能的研究具有重要意义。本文基于多元方法和结式消去法,提出了$\mathbb{F}_{2^n}$上几类新的$0$-APN幂函数。进一步,完全刻画了$0$幂函数$x^d$在$\mathbb{F}_{2^n}$上的两个无限类,其中对某些正整数$n, m, k$为$(2^k-1)d\equiv 2^m-1~({\rm mod}\ 2^n-1)$或$(2^k+1)d\equiv 2^m+1~({\rm mod}\ 2^n-1)$.这些$0$幂函数的无限类可以解释\cite{BKRS2020}中表$1$的指数的一些例子。

英文摘要:

Partially APN functions attract researchers' particular interest recently. It plays an important role in studying APN functions. In this paper, based on the multivariate method and resultant elimination, we propose several new infinite classes of $0$-APN power functions over $\mathbb{F}_{2^n}$. Furthermore, two infinite classes of $0$-APN power functions $x^d$ over $\mathbb{F}_{2^n}$ are characterized completely where $(2^k-1)d\equiv 2^m-1~({\rm mod}\ 2^n-1)$ or $(2^k+1)d\equiv 2^m+1~({\rm mod}\ 2^n-1)$ for some positive integers $n, m, k$. These infinite classes of $0$-APN power functions can explain some examples of exponents of Table $1$ in \cite{BKRS2020}.

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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