Blockchain-Enabled Searchable Encryption for Secure and Efficient Sharing of IoHT-Generated Electronic Medical Records in Cloud-Based Healthcare

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dc.contributor.authorRajesh Kumar, S.
dc.contributor.authorGomathi, V.
dc.contributor.authorVivekrabinson, K.
dc.coverage.issue2cs
dc.coverage.volume34cs
dc.date.accessioned2025-05-19T07:09:34Z
dc.date.available2025-05-19T07:09:34Z
dc.date.issued2025-06cs
dc.description.abstractProtecting 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.en
dc.formattextcs
dc.format.extent289-302cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2025 vol. 34, č. 2, s. 289-302. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2025.0289en
dc.identifier.issn1210-2512
dc.identifier.urihttps://hdl.handle.net/11012/250923
dc.language.isoencs
dc.publisherRadioengineering Societycs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2025/25_02_0289_0302.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectBlockchainen
dc.subjectElectronic Medical Records (EMR)en
dc.subjectInternet of Health Things (IoHT)en
dc.subjectKeyword-Guessing Attacks (KGA)en
dc.subjectmulti-keyword searchen
dc.subjectSearchable Encryption (SE)en
dc.titleBlockchain-Enabled Searchable Encryption for Secure and Efficient Sharing of IoHT-Generated Electronic Medical Records in Cloud-Based Healthcareen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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