Dynamical Behavior of Three-Order Cellular Neural Network with Application in Image Secure Communication

摘要

The paper analyzes dynamic behaviors of threeorder Cellular Neural Network (3-order CNN).It shows that 3-order CNN is symmetric with regard to the origin;the system is dissipative and asymptotic motion settles onto an attractor.The system has diverse chaotic attractors with different parameters.So 3-order CNN can be applied in secure communications owing to its chaotic behaviors.The paper combines 3-order CNN with DES to propose a scheme of image secure communication.The results of security analysis indicate that this scheme not only has a large key space but also has a very sensitivity with respect to the initial conditions of 3-order CNN and the key of DES.