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arXiv · 2011.11875

The 4-Adic Complexity of A Class of Quaternary Cyclotomic Sequences with Period 2p

Shiyuan Qiang·Yan Li·Minghui Yang·Keqin Feng
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Abstract

In cryptography, we hope a sequence over $\mathbb{Z}_m$ with period $N$ having larger $m$-adic complexity. Compared with the binary case, the computation of 4-adic complexity of knowing quaternary sequences has not been well developed. In this paper, we determine the 4-adic complexity of the quaternary cyclotomic sequences with period 2$p$ defined in [6]. The main method we utilized is a quadratic Gauss sum $G_{p}$ valued in $\mathbb{Z}_{4^N-1}$ which can be seen as a version of classical quadratic Gauss sum. Our results show that the 4-adic complexity of this class of quaternary cyclotomic sequences reaches the maximum if $5\nmid p-2$ and close to the maximum otherwise.

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Shiyuan Qiang, Yan Li, Minghui Yang, Keqin Feng. 2020-11-24. The 4-Adic Complexity of A Class of Quaternary Cyclotomic Sequences with Period 2p. https://arxiv.org/abs/2011.11875

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