Blockchain-Enabled Searchable Encryption for Secure and Efficient Sharing of IoHT-Generated Electronic Medical Records in Cloud-Based Healthcare
Loading...
Date
2025-06
Authors
Rajesh Kumar, S.
Gomathi, V.
Vivekrabinson, K.
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Radioengineering Society
Altmetrics
Abstract
Protecting the security of data generated by wearables and monitoring devices is critical in smart wards, especially when healthcare schemes use cloud storage services to save patients' Electronic Medical Records (EMRs). These devices operate in wireless communication environments, where data integrity and transmission security are vital. Despite the fact that encryption helps protect information, it often reduces the benefits of sharing the information generated using Internet of Health Things (IoHT) devices with others. As individuals increasingly share their EMRs with third parties, developing an effective searchable encryption framework for sharable EMRs remains a crucial task. Furthermore, cloud-based access control might result in heavily centralized control. To address this, we proposed a blockchain-assisted technique for sharable EMRs that incorporates a searchable encryption scheme compatible with a resource-constrained wireless system that does not require any secure channel. The encrypted EMRs are saved in the cloud, while the encoded keyword indexes are kept on the blockchain, assuring tamper resistance, integrity, and accountability of the encrypted indexes. Our technique also enables exact recovery of encrypted EMRs using a multi-keyword search, removing the necessity for third-party verification. Compared to prior searchable encryption systems, our technique reduces storage costs while increasing computational efficiency. Furthermore, our system is immune to keyword-guessing attacks, a must-needed one that many previous solutions fail to address wireless medical data security.
Description
Citation
Radioengineering. 2025 vol. 34, č. 2, s. 289-302. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2025/25_02_0289_0302.pdf
https://www.radioeng.cz/fulltexts/2025/25_02_0289_0302.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en