Blockchain-assisted sharing of electronic health records: a feasible privacy-centric constant-size ring signature framework

被引:0
作者
Odoom J. [1 ]
Huang X. [1 ]
Zhou Z. [2 ]
Danso S. [3 ]
Nyarko B.N.E. [1 ]
Zheng J. [1 ]
Xiang Y. [1 ]
机构
[1] Southwest University of Science and Technology, Mianyang
[2] Mianyang Central Hospital, Mianyang
[3] Ghana Communication Technology University, Accra
基金
中国国家自然科学基金;
关键词
Blockchain; electronic health records; privacy; ring signature; security; sharing;
D O I
10.1080/1206212X.2023.2252238
中图分类号
学科分类号
摘要
The quest to share Electronic Heath Records (EHR) with blockchain as a core technology has witnessed a myriad of frameworks ingrained with diverse cryptographic primitives as well as non-cryptographic mechanisms. Existing works, however, still suffer from privacy-related challenges chief being privacy breaches based on blockchain digital footprints from health facilities, doctors, and patients alike as well as feasibility challenges. Empirical research from state-of-the-art demonstrates the possibility to deanonymize entities involved in a blockchain transaction via inference analysis using such digital footprints on-chain. In this paper, we address such lacunae by advancing a privacy-conscious feasible blockchain-agnostic EHR sharing framework leveraging anonymous transactions, a smart contract, and decentralized storage technology. We construct a constant-size identity-based ring signature to provide accentuated privacy for transaction initiators and demonstrate how health facilities can anonymously retrieve anonymous data on-chain to facilitate EHR sharing via a novel, robust yet computationally efficient, and privacy-aware algorithm dubbed PatientFinder. We subsequently show proof of concept of our framework. A thorough system evaluation is performed revealing that the solution satisfies the privacy of patients and health facilities (doctors), feasibility, and security-related requirements. © 2023 Informa UK Limited, trading as Taylor & Francis Group.
引用
收藏
页码:564 / 578
页数:14
相关论文
共 87 条
[1]  
Nguyen M.D., Nguyen-Dinh C.H., Phuong L.A., Boca: a novel semantic blockchain-based authentication system of educational certificates, Int J Comput Appl, 44, pp. 1074-1082, (2022)
[2]  
Perumalla S., Chatterjee S., Kumar A.P.S., Block chain-based access control protocol in internet of drones, Int J Comput Appl, 44, pp. 847-862, (2022)
[3]  
Karumanchi M.D., Sheeba J.I., Devaneyan S.P., An efficient integrity based multi-user blockchain framework for heterogeneous supply chain management applications, Int J Comput Appl, 45, pp. 337-351, (2023)
[4]  
Abid A., Cheikhrouhou S., Kallel S., Novidchain: blockchain-based privacy-preserving platform for covid-19 test/vaccine certificates, Softw Pract Exp, 52, 4, pp. 841-867, (2021)
[5]  
Choudhury H., Goswami B., Gurung S.K., Covidchain: an anonymity preserving blockchain based framework for protection against covid-19, Inf Secur J: Glob Perspect, 30, pp. 257-280, (2021)
[6]  
Bansal A., Garg C., Padappayil R.P., Optimizing the implementation of covid-19 ‘immunity certificates’ using blockchain, J Med Syst, 44, pp. 1-2, (2020)
[7]  
Nasajpour M., Pouriyeh S., Parizi R.M., Internet of things for current covid-19 and future pandemics: an exploratory study, J Healthc Inform Res, 4, pp. 325-364, (2020)
[8]  
Saxena N., Thomas I., Gope P., Pharmacrypt: blockchain for critical pharmaceutical industry to counterfeit drugs, Computer, 53, pp. 29-44, (2020)
[9]  
Musamih A., Salah K., Jayaraman R., A blockchain-based approach for drug traceability in healthcare supply chain, IEEE Access, 9, pp. 9728-9743, (2021)
[10]  
Wong D.R., Bhattacharya S., Butte A.J., Prototype of running clinical trials in an untrustworthy environment using blockchain, Nat Commun, 10, (2019)