@misc{Chmiel_Krzysztof_Distribution, author={Chmiel, Krzysztof}, howpublished={online}, publisher={Instytut Łączności - Państwowy Instytut Badawczy, Warszawa}, language={ang}, title={Distribution of the best nonzero differential and linear approximations of s-box functions, Journal of Telecommunications and Information Technology, 2006, nr 3}, type={artykuł}, keywords={linear cryptanalysis, differential cryptanalysis, substitution boxes}, }