Image encryption algorithm based on fractional-order Chen chaotic system
Shangbo Zhou · Journal of Computer Applications · 2013
In this paper,a new image encryption algorithm was presented based on the fractional-order Chen chaotic system,for fractional-order chaotic dynamical systems have more complex dynamical behaviors than those of integer-order systems and can provide more freedom for image encryption schemes.In the transmitter,the positions of the image pixels were scrambled by the chaotic signal generated by the driving system firstly.Then the disturbed image was embedded into the chaotic signal and the encrypted image for transmission was obtained.In the receiver,the chaotic signal was removed by the synchronization system.Then the inverse process of pixel scrambling was carried out and the original image was recovered.The security of the proposed algorithm was analyzed in the end.The experimental results demonstrate that the encryption algorithm is of high security and has good research value and application prospects.