With the rise in health record data breaches, ensuring the security, efficiency, and accessibility of Electronic Health Record (EHR) systems is crucial. This paper proposes a blockchain-based EHR management system with a two-phase security mechanism. First, records are encrypted using Present-80, a lightweight encryption technique, and stored in a cloud network. Second, blockchain technology secures reference links to encrypted records, utilizing a Proof of Authority (PoA) consensus to restrict access to trusted nodes. For efficient retrieval, the system maintains linked records using reference links and previous block hashes, ensuring traceability and integrity. Smart contracts facilitate decentralized, tamper-proof data management. The proposed model is tested and evaluated against multiple performance metrics, demonstrating enhanced security, scalability, and retrieval efficiency. Results indicate its practical viability in real-world healthcare applications, offering a robust, secure, and interoperable solution for EHR management while maintaining data privacy and accessibility.
| [1] |
Arbabi MS, Lal C, Veeraragavan NR, Marijan D, Nygård JF, Vitenberg R. A survey on blockchain for healthcare: Challenges, benefits, and future directions. IEEE Communications Surveys & Tutorials, 2022, 25(1): 386-424
|
| [2] |
Chen L, Lee WK, Chang CC, Choo KKR, Zhang N. Blockchain based searchable encryption for electronic health record sharing. Future Generation Computer Systems, 2019, 95: 420-429
|
| [3] |
Deo SK, Shah M, Mallik P, Anwar S, Pranav P. A blockchain based electronic health record management system with PoA consensus. Proceedings of the International Conference on Recent Advancements in Artificial Intelligence, 2023December 15–16, 2023
|
| [4] |
Dubovitskaya A, Baig F, Xu Z, Shukla R, Zambani PS, Swaminathan A, Jahangir MM, Chowdhry K, Lachhani R, Idnani N, Schumacher M, Aberer K, Stoller SD, Ryu S, Wang F. ACTION-EHR: Patient-centric blockchain-based electronic health record data management for cancer care. Journal of Medical Internet Research, 2020, 22(8): e13598
|
| [5] |
Ekblaw A, Azaria A, Halamka JD, Lippman A. A case study for blockchain in healthcare: “MedRec” prototype for electronic health records and medical research data. Proceedings of the 2nd International Conference on Open and Big Data, 2016August 22–24, 2016
|
| [6] |
Khan SN, Loukil F, Ghedira-Guegan C, Benkhelifa E, Bani-Hani A. Blockchain smart contracts: Applications, challenges, and future trends. Peer-to-Peer Networking and Applications, 2021, 14: 2901-2925
|
| [7] |
Li Y, Zheng K, Yan Y, Liu Q, Zhou X. EtherQL: A query layer for blockchain system. Proceedings of the 22nd International Conference on Database Systems for Advanced Applications, 2017March 27–30, 2017
|
| [8] |
Liu J, Li X, Ye L, Zhang H, Du X, Guizani M. BPDS: A blockchain based privacy-preserving data sharing for electronic medical records. Proceedings of the 2018 IEEE Global Communications Conference, 2018December 9–13, 2018
|
| [9] |
Mahajan HB. Emergence of healthcare 4.0 and blockchain into secure cloud-based electronic health records systems: Solutions, challenges, and future roadmap. Wireless Personal Communications, 2022, 126(3): 2425-2446
|
| [10] |
Pampattiwar K, Chavan P. A secure and scalable blockchain-based model for electronic health record management. Scientific Reports, 2025, 15(1): 11612
|
| [11] |
Peng Z, Wu H, Xiao B, Guo S. VQL: Providing query efficiency and data authenticity in blockchain systems. Proceedings of the 2019 IEEE 35th International Conference on Data Engineering Workshops, 2019April 8–12, 2019
|
| [12] |
Raikar K, Parikh A, Ekbote A, Singh V. Cloud based ERP adoption in educational institutions. Proceedings of, 2021August 27–29, 2021
|
| [13] |
Saiod AK, van Greunen D, Veldsman A. Electronic health records: Benefits and challenges for data quality. Handbook of Large-Scale Distributed Computing in Smart Healthcare, 2017Cham, SwitzerlandSpringer123-156
|
| [14] |
Shamshad S, Minahil, Mahmood K, Kumari S, Chen CM. A secure blockchain-based e-health records storage and sharing scheme. Journal of Information Security and Applications, 2020, 55: 102590
|
| [15] |
Singh AP, Pradhan NR, Luhach AK, Agnihotri S, Jhanjhi NZ, Verma S, Kavita, Ghosh U, Roy DS. A novel patient-centric architectural framework for blockchain-enabled healthcare applications. IEEE Transactions on Industrial Informatics, 2020, 17(8): 5779-5789
|
| [16] |
Sreenivasan M, Chacko AM. Interoperability issues in EHR systems: Research directions. Data Analytics in Biomedical Engineering and Healthcare, 2021Cambridge, USAAcademic Press13-28
|
| [17] |
Ullah A, Ullah Z, Rizvi SS, Gul L, Kwon SJ. Toward blockchain based electronic health record management with fine grained attribute based encryption and decentralized storage mechanisms. Scientific Reports, 2025, 15(1): 34542
|
| [18] |
Wu G, Wang S, Ning Z, Zhu B. Privacy-preserved electronic medical record exchanging and sharing: A blockchain-based smart healthcare system. IEEE Journal of Biomedical and Health Informatics, 2021, 26(5): 1917-1927
|
| [19] |
Yi M. Major issues in adoption of electronic health records. Journal of Digital Information Management, 2018, 16(4): 180-191
|
| [20] |
Yin H, Zhao Y, Zhang L, Qiao B, Chen W, Wang H. Attribute-based searchable encryption with decentralized key management for healthcare data sharing. Journal of Systems Architecture, 2024, 148: 103081
|
| [21] |
Zhang P, White J, Schmidt DC, Lenz G, Rosenbloom ST. FHIRChain: Applying blockchain to securely and scalably share clinical data. Computational and Structural Biotechnology Journal, 2018, 16: 267-278
|
| [22] |
Zou R, Lv X, Zhao J. SPChain: Blockchain-based medical data sharing and privacy-preserving eHealth system. Information Processing & Management, 2021, 58(4): 102604
|
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Systems Engineering Society of China and Springer-Verlag GmbH Germany
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