Zeros of special polynomials and their impact on a class of APN functions

Daniele Bartoli, Marco Calderini, Giuseppe Marino +1

In 2021, Calderini et al. introduced a construction for APN functions on ${\mathbb{F}}_{2^{2m}}$ in bivariate form $$ f(x,y)=\big(xy,\, x^{2^r+1} + x^{2^{r+m/2}} y^{2^{m/2}} + bxy^{2…