Anti-control of chaos for equations and application image encryption
Ranchao Wu · Jisuanji gongcheng yu sheji · 2010
To study anti-control of chaos for the equations and the application image encryption,a method of state feedback control based on a little delay time is presented.By designing a delay feedback controller,the controlled system appeared chaotic behavior and gave its part of index from numerical simulation.At the same time,an image encryption algorithm based on the controlled chaotic systems and wavelet transform is put forward.The experimental results demonstrate that the encryption algorithm has not only a large key space but also a very sensitivity with respect to the secret key and the original image.The encryption algorithm proposed possesses perfect diffusion and confusion properties and it can resist the various attacks.