Chunxiang Xu

2papers

2 Papers

CROct 10, 2019
On k-error linear complexity of binary sequences derived from Euler quotients modulo 2p

Chenhuang Wu, Vladimir Edemskiy, Chunxiang Xu

We consider the $k$-error linear complexity of binary sequences derived from Eluer quotients modulo $2p$ ($p>3$ is an odd prime), recently introduced by J. Zhang and C. Zhao. We adopt certain decimal sequences to determine the values of $k$-error linear complexity for all $k>0$. Our results indicate that such sequences have good stability from the viewpoint of cryptography.

CRNov 16, 2017
On error linear complexity of new generalized cyclotomic binary sequences of period $p^2$

Chenhuang Wu, Chunxiang Xu, Zhixiong Chen et al.

We consider the $k$-error linear complexity of a new binary sequence of period $p^2$, proposed in the recent paper "New generalized cyclotomic binary sequences of period $p^2$", by Z. Xiao et al., who calculated the linear complexity of the sequences (Designs, Codes and Cryptography, 2017, https://doi.org/10.1007/s10623-017-0408-7). More exactly, we determine the values of $k$-error linear complexity over $\mathbb{F}_2$ for almost $k>0$ in terms of the theory of Fermat quotients. Results indicate that such sequences have good stability.