A Highly Secured Image Encryption Scheme using Quantum Walk and Chaos  

作　　者：Muhammad Islam Kamran Muazzam A.Khan Suliman A.Alsuhibany Yazeed Yasin Ghadi Arshad Jameel Arif Jawad Ahmad 

机构地区：[1]Department of Computer Science,Quaid-i-Azam University,Islamabad,45320,Pakistan [2]Department of Computer Science,College of Computer,Qassim University,Buraydah,51452,Saudi Arabia [3]Department of Computer Science and Software Engineering,Al Ain University,Abu Dhabi,15551,UAE [4]Institute for Energy and Environment,University of Strathclyde,Glasgow,G11XQ,UK [5]School of Computing,Edinburgh Napier University,Edinburgh,EH105DT,UK

出　　处：《Computers, Materials & Continua》2022年第10期657-672,共16页计算机、材料和连续体（英文）

摘　　要：The use of multimedia data sharing has drastically increased in the past few decades due to the revolutionary improvements in communication technologies such as the 4th generation(4G)and 5th generation(5G)etc.Researchers have proposed many image encryption algorithms based on the classical random walk and chaos theory for sharing an image in a secure way.Instead of the classical random walk,this paper proposes the quantum walk to achieve high image security.Classical random walk exhibits randomness due to the stochastic transitions between states,on the other hand,the quantum walk is more random and achieve randomness due to the superposition,and the interference of the wave functions.The proposed image encryption scheme is evaluated using extensive security metrics such as correlation coefficient,entropy,histogram,time complexity,number of pixels change rate and unified average intensity etc.All experimental results validate the proposed scheme,and it is concluded that the proposed scheme is highly secured,lightweight and computationally efficient.In the proposed scheme,the values of the correlation coefficient,entropy,mean square error(MSE),number of pixels change rate(NPCR),unified average change intensity(UACI)and contrast are 0.0069,7.9970,40.39,99.60%,33.47 and 10.4542 respectively.

关 键 词：CRYPTOGRAPHY chaotic maps logistic map quantum walk SECURITY 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]