A Technique for Designing Substitution Box Based on Van der Pol Oscillator

Chaos is the impromptu behavior exhibited by some nonlinear dynamical systems and has been applied extensively in secure communication over the last decade. In this paper, the chaotic behavior of Van der Pol oscillator is studied and proposed a method to generate Substitution Box (S-box) from it. The generated S-box have some good statistical properties such as PSNR, MSE, correlation, energy, Homogeneity, entropy and contrast. The performance of proposed S-box is compared with other S-boxes like AES, gray, APA, Lui J and S8 to show the strength of anticipated technique.