Time-Enabled and Verifiable Secure Search for Blockchain-Empowered Electronic Health Record Sharing in IoT

Nie, X; Zhang, A; Chen, J; Qu, Y; Yu, S

Time-Enabled and Verifiable Secure Search for Blockchain-Empowered Electronic Health Record Sharing in IoT

Nie, X Zhang, A Chen, J Qu, Y Yu, S

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Publisher:: Hindawi
Publication Type:: Journal Article
Citation:: Security and Communication Networks, 2022, 2022, pp. 1-15
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Nie, X
dc.contributor.author	Zhang, A
dc.contributor.author	Chen, J
dc.contributor.author	Qu, Y
dc.contributor.author	Yu, S https://orcid.org/0000-0003-4485-6743
dc.contributor.editor	Megias, D
dc.date.accessioned	2023-03-12T23:51:36Z
dc.date.available	2023-03-12T23:51:36Z
dc.date.issued	2022-01-01
dc.identifier.citation	Security and Communication Networks, 2022, 2022, pp. 1-15
dc.identifier.issn	1939-0114
dc.identifier.issn	1939-0122
dc.identifier.uri	http://hdl.handle.net/10453/167108
dc.description.abstract	The collection and sharing of electronic health records (EHRs) via the Internet of Things (IoT) can enhance the accuracy of disease diagnosis. However, it is challenging to guarantee the secure search of EHR during the sharing process. The advent of blockchain is a promising solution to address the issues, owing to its remarkable features such as immutability and anonymity. In this paper, we propose a novel blockchain-based secure sharing system over searchable encryption and hidden data structure via IoT devices. EHR ciphertexts of data owners are stored in the interplanetary file system (IPFS). A user with proper access permissions can search for the desired data with the data owner's time-bound authorization and verify the authenticity of the search result. After that, the data user can access the relevant EHR ciphertext from IPFS using a symmetric key. The scheme jointly uses searchable encryption and smart contract to realize secure search, time control, verifiable keyword search, fast search, and forward privacy in IoT scenarios. Performance analysis and proof demonstrate that the proposed protocol can satisfy the design goals. In addition, performance evaluation shows the high scalability and feasibility of the proposed scheme.
dc.language	en
dc.publisher	Hindawi
dc.relation.ispartof	Security and Communication Networks
dc.relation.isbasedon	10.1155/2022/1103863
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0802 Computation Theory and Mathematics, 0805 Distributed Computing, 0899 Other Information and Computing Sciences
dc.title	Time-Enabled and Verifiable Secure Search for Blockchain-Empowered Electronic Health Record Sharing in IoT
dc.type	Journal Article
utslib.citation.volume	2022
utslib.for	0802 Computation Theory and Mathematics
utslib.for	0805 Distributed Computing
utslib.for	0899 Other Information and Computing Sciences
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Computer Science
utslib.copyright.status	open_access	*
dc.date.updated	2023-03-12T23:51:32Z
pubs.publication-status	Published
pubs.volume	2022

Abstract:

The collection and sharing of electronic health records (EHRs) via the Internet of Things (IoT) can enhance the accuracy of disease diagnosis. However, it is challenging to guarantee the secure search of EHR during the sharing process. The advent of blockchain is a promising solution to address the issues, owing to its remarkable features such as immutability and anonymity. In this paper, we propose a novel blockchain-based secure sharing system over searchable encryption and hidden data structure via IoT devices. EHR ciphertexts of data owners are stored in the interplanetary file system (IPFS). A user with proper access permissions can search for the desired data with the data owner's time-bound authorization and verify the authenticity of the search result. After that, the data user can access the relevant EHR ciphertext from IPFS using a symmetric key. The scheme jointly uses searchable encryption and smart contract to realize secure search, time control, verifiable keyword search, fast search, and forward privacy in IoT scenarios. Performance analysis and proof demonstrate that the proposed protocol can satisfy the design goals. In addition, performance evaluation shows the high scalability and feasibility of the proposed scheme.

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http://hdl.handle.net/10453/167108