Color Image Encryption Using 2D Sine-Cosine Coupling Map

In this paper, a new two-dimensional sine-cosine coupling chaos map(2D-SCCM) is proposed. The performance of the proposed chaotic system analysed by using trajectory distribution maps, Lyapunov exponents, sample entropy and sequence sensitivity, etc. results show that 2D-SCCM has better randomness ergodicity, as well wider hyperchaotic range than existing partial maps. To verify its application in practice, 2D-SCCM-based color image encryption algorithm First, plain used to combine with hash function generate key. Then, we construct S-Boxes random generated combined Arnold map. Finally, constructed map function. Experimental simulations security tests high efficiency strong security, can effectively protect images from various attacks.