A Novel Internet of Medical Thing Cryptosystem Based on Jigsaw Transformation and Ikeda Chaotic Map  

作　　者：Sultan Almakdi Mohammed SAlshehri Yousef Asiri Mimonah Al Qathrady Anas Ibrar Jawad Ahmad 

机构地区：[1]Department of Computer Science,Najran University,Najran,61441,Saudi Arabia [2]Department of Information Systems,Najran University,Najran,61441,Saudi Arabia [3]Department of Electrical Engineering,Wah Engineering College,University of Wah,Wah Cantt,47040,Pakistan [4]School of Computing,Edinburgh Napier University,Edinburgh,EH105DT,UK

出　　处：《Computer Systems Science & Engineering》2023年第9期3017-3036,共20页计算机系统科学与工程（英文）

基　　金：The authors are thankful to the Deanship of Scientific Research at Najran University for funding this work under the Research Groups Funding program grant code(NU/RC/SERC/11/5).

摘　　要：Image encryption has attracted much interest as a robust security solution for preventing unauthorized access to critical image data.Medical picture encryption is a crucial step in many cloud-based and healthcare applications.In this study,a strong cryptosystem based on a 2D chaotic map and Jigsaw transformation is presented for the encryption of medical photos in private Internet of Medical Things(IoMT)and cloud storage.A disorganized three-dimensional map is the foundation of the proposed cipher.The dispersion of pixel values and the permutation of their places in this map are accomplished using a nonlinear encoding process.The suggested cryptosystem enhances the security of the delivered medical images by performing many operations.To validate the efficiency of the recommended cryptosystem,various medical image kinds are used,each with its unique characteristics.Several measures are used to evaluate the proposed cryptosystem,which all support its robust security.The simulation results confirm the supplied cryptosystem’s secrecy.Furthermore,it provides strong robustness and suggested protection standards for cloud service applications,healthcare,and IoMT.It is seen that the proposed 3D chaotic cryptosystem obtains an average entropy of 7.9998,which is near its most excellent value of 8,and a typical NPCR value of 99.62%,which is also near its extreme value of 99.60%.Moreover,the recommended cryptosystem outperforms conventional security systems across the test assessment criteria.

关 键 词：Jigsaw transformation CRYPTOSYSTEM image encryption medical images Ikeda map chaotic system 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]