Remote sensing image encryption algorithm based on novel hyperchaos and an elliptic curve cryptosystem  

作　　者：田婧希 金松昌 张晓强 杨绍武 史殿习 Jing-Xi Tian;Song-Chang Jin;Xiao-Qiang Zhang;Shao-Wu Yang;Dian-Xi Shi(School of Computer Science,National University of Defense Technology,Changsha 410003,China;Intelligent Game and Decision Laboratory (IGDL),Beijing 100091,China;School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]School of Computer Science,National University of Defense Technology,Changsha 410003,China [2]Intelligent Game and Decision Laboratory (IGDL),Beijing 100091,China [3]School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221116,China

出　　处：《Chinese Physics B》2024年第5期292-304,共13页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.91948303)。

摘　　要：Remote sensing images carry crucial ground information,often involving the spatial distribution and spatiotemporal changes of surface elements.To safeguard this sensitive data,image encryption technology is essential.In this paper,a novel Fibonacci sine exponential map is designed,the hyperchaotic performance of which is particularly suitable for image encryption algorithms.An encryption algorithm tailored for handling the multi-band attributes of remote sensing images is proposed.The algorithm combines a three-dimensional synchronized scrambled diffusion operation with chaos to efficiently encrypt multiple images.Moreover,the keys are processed using an elliptic curve cryptosystem,eliminating the need for an additional channel to transmit the keys,thus enhancing security.Experimental results and algorithm analysis demonstrate that the algorithm offers strong security and high efficiency,making it suitable for remote sensing image encryption tasks.

关 键 词：hyperchaotic system elliptic curve cryptosystem(ECC) 3D synchronous scrambled diffusion remote sensing image unmanned aerial vehicle(UAV) 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置] O415.5[自动化与计算机技术—控制科学与工程] TP309.7[理学—理论物理]