A novel systematic byte substitution method to design strong bijective substitution box (S-box) using piece-wise-linear chaotic map.

ABSTRACT: Cryptography deals with designing practical mathematical algorithms having the two primitive elements of confusion and diffusion. The security of encrypted data is highly dependent on these two primitive elements and a key. S-box is the nonlinear component present in a symmetric encryption algorithm that provides confusion. A cryptographically strong bijective S-box structure in cryptosystem ensures near-optimal resistance against cryptanalytic attacks. It provides uncertainty and nonlinearity that ensures high confidentiality and security against cryptanalysis attacks. The nonlinearity of an S-box is highly dependent on the dispersal of input data using an S-box. Cryptographic performance criteria of chaos-based S-boxes are worse than algebraic S-box design methods, especially differentia

SUBMITTER: Ali A 

PROVIDER: S-EPMC9138039 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature