Robustness of Affine and Extended Affine Equivalent Surjective S-Box(es) against Differential Cryptanalysis

ePrint Report: Robustness of Affine and Extended Affine Equivalent Surjective S-Box(es) against Differential Cryptanalysis

Shah Fahd

A Feistel Network (FN) based block cipher relies on a Substitution Box (S-Box) for achieving the non-linearity. S-Box is carefully designed to achieve optimal cryptographic security bounds. The research of the last three decades shows that considerable efforts are being made on the mathematical design of an S-Box. To import the exact cryptographic profile of an S-Box, the designer focuses on the Affine Equivalent …

box cryptanalysis eprint report robustness