Dynamic Analysis of an Entangled Chaotic System and Its Application in Image Encryption
Based on the principle of the entangled chaotic system,an entangled chaotic system with cosine entanglement was constructed.By using Lyapunov exponent,bifurcation diagram and power spectrum,the dynamic characteristics of the system parameters change were analyzed theoretically.Numerical simulations identified chaotic intervals with high parameter sensitivity of the system,and verified the dynamic performance of the system.In order to realize the application of the circuit principle,the circuit of the entangled chaotic system was designed based on the software MultisimI4,and the operability of the entangled chaotic circuit design in practical engineering was proved.Finally,the system was further applied to encrypt the image,and the information entropy,histogram and pixel correlation of the image were analyzed and proved by using the interval chaotic sequence of sensitive characteristic parameters and DNA algorithm.MATLAB simulation results showed that the proposed entangled chaotic system had high application value and security performance.
Entangled Chaotic SystemCosine Entanglement TermImage Information Entropy
万方数据
维普
