Fourier Spectra of Binomial APN Functions
Discrete Mathematics
2008-12-18 v1 Information Theory
math.IT
Abstract
In this paper we compute the Fourier spectra of some recently discovered binomial APN functions. One consequence of this is the determination of the nonlinearity of the functions, which measures their resistance to linear cryptanalysis. Another consequence is that certain error-correcting codes related to these functions have the same weight distribution as the 2-error-correcting BCH code. Furthermore, for fields of odd degree, our results provide an alternative proof of the APN property of the functions.
Keywords
Cite
@article{arxiv.0803.3781,
title = {Fourier Spectra of Binomial APN Functions},
author = {Carl Bracken and Eimear Byrne and Nadya Markin and Gary McGuire},
journal= {arXiv preprint arXiv:0803.3781},
year = {2008}
}
Comments
20 pages. Submitted to the SIAM Journal on Discrete Mathematics