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Remote sensing image encryption algorithm based on novel hyperchaos and an elliptic curve cryptosystem |
Jing-Xi Tian(田婧希)1, Song-Chang Jin(金松昌)2, Xiao-Qiang Zhang(张晓强)3, Shao-Wu Yang(杨绍武)1, and Dian-Xi Shi(史殿习)2,† |
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 |
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Abstract 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.
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Received: 09 November 2023
Revised: 19 January 2024
Accepted manuscript online: 22 January 2024
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PACS:
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05.45.-a
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(Nonlinear dynamics and chaos)
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05.45.Gg
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(Control of chaos, applications of chaos)
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95.75.Mn
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(Image processing (including source extraction))
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Fund: Project supported was supported by the National Natural Science Foundation of China (Grant No. 91948303). |
Corresponding Authors:
Dian-Xi Shi
E-mail: dxshi@nudt.edu.cn
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Cite this article:
Jing-Xi Tian(田婧希), Song-Chang Jin(金松昌), Xiao-Qiang Zhang(张晓强), Shao-Wu Yang(杨绍武), and Dian-Xi Shi(史殿习) Remote sensing image encryption algorithm based on novel hyperchaos and an elliptic curve cryptosystem 2024 Chin. Phys. B 33 050502
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