3.8 Article

Personal health record storage and sharing using searchable encryption and blockchain: A comprehensive survey

期刊

SECURITY AND PRIVACY
卷 -, 期 -, 页码 -

出版社

WILEY
DOI: 10.1002/spy2.351

关键词

blockchain; cloud computing; personal health records; searchable encryption; security; storage

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Personal Health Records (PHRs) pose challenges in storage and sharing, but Searchable Encryption (SE) combined with Blockchain offers a promising solution. This survey explores research on SE and blockchain technology, comparing existing solutions for secure storage and sharing of PHRs.
Personal Health Records (PHRs) allow patients to have full control over their health data. However, storage and sharing of PHRs still remains a difficult but necessary task, especially when health data is one of the major targets of cyber attacks worldwide. Searchable Encryption (SE) is a feasible solution for this problem and can be augmented by Blockchain to address some of its issues, such as verifiability. Therefore, SE using blockchain is a promising technologies to tackle the challenge of PHR storage and sharing. In this survey, we have explored the research works that use SE and blockchain technology for the same. The work starts with an introduction of cloud, searchable encryption and blockchain. Subsequently, we present a literature survey of the corresponding technologies. We then describe SE in detail and how it fits with blockchain. This is followed by description of noteworthy existing solutions for secure storage and sharing of PHRs. Even though there have been a number of surveys related to SE, none of them have surveyed the use of blockchain with SE or use of SE and blockchain in PHR sharing. The work concludes with a comparative study of these existing solutions and future scope in this direction.

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