Elevating Medical Image Security: A Cryptographic Framework Integrating Hyperchaotic Map and GRU

Weixuan Li; Guang Yu; Quanjun Li; Junhua Zhou; Jiajun Chen; Yihang Dong; Mengqian Wang; Zimeng Li; Changwei Gong; Lin Tang; Xuhang Chen

arXiv · 2510.12084

Elevating Medical Image Security: A Cryptographic Framework Integrating Hyperchaotic Map and GRU

Weixuan Li·Guang Yu·Quanjun Li·Junhua Zhou·Jiajun Chen·Yihang Dong·Mengqian Wang·Zimeng Li·Changwei Gong·Lin Tang·Xuhang Chen

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Abstract

Chaotic systems play a key role in modern image encryption due to their sensitivity to initial conditions, ergodicity, and complex dynamics. However, many existing chaos-based encryption methods suffer from vulnerabilities, such as inadequate permutation and diffusion, and suboptimal pseudorandom properties. This paper presents Kun-IE, a novel encryption framework designed to address these issues. The framework features two key contributions: the development of the 2D Sin-Cos Pi Hyperchaotic Map (2D-SCPHM), which offers a broader chaotic range and superior pseudorandom sequence generation, and the introduction of Kun-SCAN, a novel permutation strategy that significantly reduces pixel correlations, enhancing resistance to statistical attacks. Kun-IE is flexible and supports encryption for images of any size. Experimental results and security analyses demonstrate its robustness against various cryptanalytic attacks, making it a strong solution for secure image communication. The code is available at this \href{https://github.com/QuincyQAQ/Elevating-Medical-Image-Security-A-Cryptographic-Framework-Integrating-Hyperchaotic-Map-and-GRU}{link}.

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Weixuan Li, Guang Yu, Quanjun Li, Junhua Zhou, Jiajun Chen, Yihang Dong, Mengqian Wang, Zimeng Li, Changwei Gong, Lin Tang, Xuhang Chen. 2025-10-14. Elevating Medical Image Security: A Cryptographic Framework Integrating Hyperchaotic Map and GRU. https://arxiv.org/abs/2510.12084

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