Digital Image Encryption Based on a 4D Chaotic System
Yonghong Chen · Journal of Shantou University · 2010
A novel image encryption scheme based on a 4D chaotic system is proposed.The plaintext binary block is permuted by pseudo random number generated by a 4D chaotic system.The proposed scheme has big key space and improves the scrambling degree.Simulation results show the high security and good encryption effect of the new scheme.The statistical analysis shows that it provides an efficient and secure way against statistical attack.The proposed scheme is robust against cropping and noising attacks as well.