Novel image encryption scheme based on chaotic system
Gui Feng · Computer Engineering and Applications Journal · 2007
A novel image encryption scheme based on chaos-sorting technique is proposed.The chaos-sorting map is generated by sorting the chaotic matrix in order.The permutation module and the substitution module are designed.Encryption algorithms in spatial domain and frequency domain are proposed.For the encryption algorithm in frequency domain,the cipher-image can be lossy compressed,and low-distortion plain image can be obtained after decrypting the compressed cipher-image.Simulation results and analysis demonstrate that the proposed scheme is of favorable security and efficiency.