Image dual scrambling encryption algorithm based on chaotic system with variable parameter
Zhangli Lan · Computer Engineering and Applications Journal · 2011
A type of chaotic system with variable parameter is presented to improve the complexity and pseudo-randomness of chaotic system,via analyzing and advancing the ordinary classical chaos systems.Theoretical analysis and simulation experimental results testify that the chaotic system has better chaotic characters than several traditional chaotic systems.Moreover,a class of image encryption algorithm,image dual scrambling encryption algorithm based on chaotic system with variable parameter,is proposed by improving the traditional image encryption algorithms based on chaos,which uses the chaotic system to scramble pixel positions and pixel values.The experimental results show that the algorithm has stronger resistance against attacks such as exhaustion attack,count attack,cropping attack,noise attack,which is consequently of higher security and efficiency.