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arXiv 2103.05762cs.CRmath.CO
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雪崩判据在c-微分下的推广

An extension of the avalanche criterion in the context of c-differentials

P. Ellingsen, C. Riera, P. Stanica, A. Tkachenko

摘要:

严格雪崩准则(SAC)是向量布尔函数的一个性质,用于构造强S盒。在本文中,我们将展示如何推广SAC的概念,以解决可能的c-差分攻击,在有限域的领域。定义了c-严格雪崩准则(c-SAC)和m阶c-严格雪崩准则(c-SAC(m)),推广了Li和Cusick,2005的结果.我们还通过计算证明了新定义如何不等同于现有的c-number 1-ness概念(Stanica等人,2020),也不(对于n = m)PcN-ness(Ellingsen等人,2020年)

英文摘要:

The Strict Avalanche Criterion (SAC) is a property of vectorial Boolean functions that is used in the construction of strong S-boxes. We show in this paper how to generalize the concept of SAC to address possible c-differential attacks, in the realm of finite fields. We define the concepts of c-Strict Avalanche Criterion (c-SAC) and c-Strict Avalanche Criterion of order m (c-SAC(m)), and generalize results of (Li and Cusick, 2005). We also show computationally how the new definition is not equivalent to the existing concepts of c-bent1-ness (Stanica et al., 2020), nor (for n = m) PcN-ness (Ellingsen et al., 2020)

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