A Generalized ${\chi }_n$-Function

Cheng Lyu, Mu Yuan, Dabin Zheng +2

The mapping ${\chi }_n$ from $\F_{2}^{n}$ to itself defined by $y={\chi }_n(x)$ with $y_i=x_i+x_{i+2}(1+x_{i+1})$, where the indices are computed modulo $n$, has been widely studied for its ap…