Chaotic Image Encryption Using Piecewise-Logistic-Sine Map

The classical one-dimension chaotic maps are not adequately secure, and some improved usually have a high time complexity. To address these problems, this paper presents new Piecewise-Logistic-Sine map (PLSM). bifurcation diagrams, Lyapunov exponent, running of the proposed PLSM analyzed, outcomes show that it has better behavior with low Furthermore, diffusion by certain rules is vulnerable to attack, so PLSM-based image encryption scheme random exclusive OR proposed. Using 256-bit secret key, initial value parameters calculated key distribution method. Then four sequences generated PLSM, they used in three rounds diffusion. This can spread small change original all pixels, performance evaluation shows security scheme.