Technology of Blockchain
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App. Res. of Comp. Printed Article
Vol. 41, 2024 No. 5
1321-1327

Secure electronic health records sharing scheme based on blockchain and friend and relative nodes

Liu Huiwen1
Deng Xiaohong1,2
Xiong Weizhi1
Bai Yameng3
1. School of Information Engineering, Gannan University of Science & Technology, Ganzhou Jiangxi 341000, China
2. Key Laboratory of Cloud Computing & Big Data, Ganzhou Jiangxi 341000, China
3. School of Information Engineering, Jiaozuo University, Jiaozuo Henan 454003, China
DOI: 10.19734/j.issn.1001-3695.2023.08.0380

Abstract

Blockchain technology has great potentiality in the secure sharing of electronic health records. However, current solutions face issues such as large storage space and low consensus efficiency. This paper proposed a novel scheme based on blockchain and friend and relative nodes. Firstly, this paper adopted a distributed file system to store users' complete electronic health records on offline servers, and constructed a set of user's friend and relative nodes. Each user's data was stored redundantly by its friend and relative nodes, and only the block's header information was stored on the chain, reducing sto-rage space. Then, this paper designed a data access mechanism based on multi-signature technology, using Shamir secret sharing mechanism to distribute user's private keys to their relatives and friends. More than half of the relatives and friends could use their own private keys to reconstruct users' private keys, solving data access problems in emergency situations. Finally, this paper proposed a credit based Byzantine fault-tolerant consensus mechanism, which used the top 10% nodes with credit values as the leader node set and utilized a random algorithm to generate the master node in the leader node set. And it improved consensus security. The experimental results show that compared with existing methods, the proposed scheme reduces the on-chain storage space by 1/7, improves data access efficiency by 15 times, and has higher consensus security while ensuring good latency and throughput. The proposed scheme can achieve secure and efficient sharing of electronic health records, providing a case for the application of blockchain in the medical field.

Foundation Support

国家自然科学基金资助项目(61762046,62166019)
江西省自然科学基金面上项目(20224BAB202019)
河南省科技攻关计划资助项目(222102210223)
河南省高等学校重点科研项目(23A520060)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.08.0380
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 5
Section: Technology of Blockchain
Pages: 1321-1327
Serial Number: 1001-3695(2024)05-006-1321-07

Publish History

[2023-11-01] Accepted Paper
[2024-05-05] Printed Article

Cite This Article

刘惠文, 邓小鸿, 熊伟志, 等. 基于区块链和亲友节点的电子健康记录安全共享方案 [J]. 计算机应用研究, 2024, 41 (5): 1321-1327. (Liu Huiwen, Deng Xiaohong, Xiong Weizhi, et al. Secure electronic health records sharing scheme based on blockchain and friend and relative nodes [J]. Application Research of Computers, 2024, 41 (5): 1321-1327. )

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.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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