Color image encryption algorithm based on synchronization control of multiple memristor-based chaotic systems

To solve the security problem of color image transmission, this paper designs an encryption scheme based on multiple chaotic synchronization system with memristors. Firstly, the function relationship of cubic flux-controlled memristor is given, and on this basis, the mathematical model of multiple chaotic systems with memristors is established, and the synchronization controller of the above chaotic system is designed under the single input control method and drive-response strategy. Secondly, based on Routh-Hurwitz criterion, the parameter values of the controller are given, and the error curve of the system asymptotically converging to zero is obtained by simulation, which proves that the designed synchronization controller is effective. Finally, a color image encryption and decryption scheme was designed based on the above transmission synchronization model. Through comparative experiments, it is proved that the scheme has the performance of short encryption time and good encryption effect.