Binary Image Encryption Algorithm Based on Chaos and Walsh Transform
Hui Chen · Computer and Modernization · 2011
A binary image encryption algorithm based on chaos map and discrete Walsh transform is proposed.Firstly,chaos sequence is used to encrypt the image,then the encryption image is scrambled by the discrete Walsh transform,which can achieve high-strength encryption.The discrete Walsh transform can save computation time greatly.The simulation result shows that this algorithm has high quality of secrecy as well as short computation time.