Design of cryptographically secure AES S-Box using cellular automata

Abstract

In this paper, the S-Box of Advance Encryption Standard(AES) are computed using cellular automata whereas standard AES algorithm S-Box are computed using irreducible polynomial equation in table form known as look up ta-bles(LUTs). Using Cellular Automata (CA) based S-Box makes the algorithm more secure, more robust and dynamic. The security aspects of the S-Box used in AES algorithm are evaluated using cryptographic properties like Strict Avalanche Criteria, Non Linearity, Entropy and Common Immunity Bias. The design of S-Box using Cellular Automata is better with respect to security and dynamic aspect compared w.r.t to the classical S-boxes used in standard Data Encryption Standard and Advance Encryption Standard.