App. Res. of Comp. Accepted Paper
Vol. 43, 2026 No. 5

Attribute-hiding cross-hospital medical data sharing scheme based on inner product functional encryption

Zhao Leilei1,2
Dong Guofang1,2
Yuan Hao1,2
1. School of Electrical and Information Technology, Yunnan Minzu University, Kunming 650504, Yunnan, China
2. Yunnan Key Laboratory of Unmanned Autonomous System, Yunnan Minzu University, Kunming 650504, Yunnan, China
DOI: 10.19734/j.issn.1001-3695.2025.08.0374

Abstract

To address the challenges in balancing fine-grained access control with attribute privacy and the resilience limitations of centralized key management for cross-hospital data sharing, this paper proposes an attribute-hiding scheme based on inner-product functional encryption. First, the scheme encodes access policies and user attributes into hash vectors and makes access decisions through inner-product computations in the encrypted domain, thereby enabling fine-grained control while concealing sensitive attributes. Second, a cloud-edge-end collaborative architecture supports the system, where the attribute authority manages key generation and attribute audit, and edge nodes conduct pre-decryption to reduce the computational load on users. Finally, security analysis demonstrates that the scheme resists collusion attacks between the attribute authority and hospitals, as well as attribute correlation collusion attacks, and achieves IND-CPA security. Experimental results confirm the scheme's efficiency in terms of computational and communication overhead.

Foundation Support

国家自然科学基金资助项目(61662089)和云南民族大学研究生科研创新基金资助项目(2023SKY007)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2025.08.0374
Publish at: Application Research of Computers Accepted Paper, Vol. 43, 2026 No. 5

Publish History

[2026-01-13] Accepted Paper

Cite This Article

赵蕾蕾, 董国芳, 袁昊. 基于内积函数加密的属性隐藏跨院医疗数据共享方案 [J]. 计算机应用研究, 2026, 43 (5). (2026-01-20). https://doi.org/10.19734/j.issn.1001-3695.2025.08.0374. (Zhao Leilei, Dong Guofang, Yuan Hao. Attribute-hiding cross-hospital medical data sharing scheme based on inner product functional encryption [J]. Application Research of Computers, 2026, 43 (5). (2026-01-20). https://doi.org/10.19734/j.issn.1001-3695.2025.08.0374. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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