Image Encryption Algorithm Based on Sine-Logistic Cascade Chaos

In view of the fact that the dynamic characteristic of a single chaotic system is insufficient in the image encryption algorithm, the time sequence of the output is often not the theoretical completely random, but the cascade of the chaotic system can improve the defect. And cascading chaotic systems can make the real value of discrete sequence distribution more uniform, has better dynamic characteristics. Therefore, this paper proposes an image encryption algorithm based on s-l cascade chaotic system. Through the simulation experiment of key sensitivity, histogram, correlation between adjacent elements such as evaluation index to calculate and analyze, proves that the encryption algorithm has strong ability against the attack.