More Constructions of Differentially 4-uniform Permutations on $\gf_{2^{2k}}$

Longjiang Qu, Yin Tan, Chao Li +1

Differentially 4-uniform permutations on $\gf_{2^{2k}}$ with high nonlinearity are often chosen as Substitution boxes in both block and stream ciphers. Recently, Qu et al. introduc…