Image dual scrambling encryption algorithm based on parameter variable chaotic system

In order to enhance the complexity and pseudo randomness of encryption scheme, we presented a novel parameter variable chaotic system in this paper. Experimental results illustrated that our algorithm outperforms several classical chaotic systems. Moreover, we also proposed a class of dual scrambling image encryption algorithm employing the variable parameter chaos system to scramble pixel positions as well as values. Simulation and analysis demonstrated that our algorithm is more resistant against brutefroce attack with remarkable performance, which stands for high security and efficiency.