2D Cosine-coupling-Logistic and Sine map for image encryption

In recent years, chaotic cryptography has greatly promoted the development of image encryption technology, but some chaotic-based digital image encryption systems have some flaws. In order to enhance the security and reliability of digital images in network transmission, this paper presents a new two-dimensional chaotic map (2D-CCLS), which is derived from Logistic and Sine map, and then applied in a chaotic image encryption algorithm to scramble, rotate and diffuse the pixels of the image. Theoretical analysis and simulation experiment results show that the algorithm has good performance such as large key space, strong anti-noise attack capability, strong key sensitivity and high security.