In a recent paper, it is shown that functions of the form L1(x3)+L2(x9), where L1 and L2 are linear, are a good source for construction of new infinite families of APN functions. In the present work we study necessary and sufficient conditions for such functions to be APN.
@article{arxiv.1703.09080,
title = {On Some Properties of Quadratic APN Functions of a Special Form},
author = {Irene Villa},
journal= {arXiv preprint arXiv:1703.09080},
year = {2017}
}