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AuthorLiu, Jingwei
AuthorLiang, Tianyu
AuthorSun, Rong
AuthorDu, Xiaojiang
AuthorGuizani, Mohsen
Available date2022-11-14T17:24:54Z
Publication Date2020-12-01
Publication Name2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
Identifierhttp://dx.doi.org/10.1109/GLOBECOM42002.2020.9348251
CitationLiu, J., Liang, T., Sun, R., Du, X., & Guizani, M. (2020, December). A privacy-preserving medical data sharing scheme based on consortium blockchain. In GLOBECOM 2020-2020 IEEE Global Communications Conference (pp. 1-6). IEEE.‏
ISBN9781728182988
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85101245600&origin=inward
URIhttp://hdl.handle.net/10576/36383
AbstractElectronic medical records (EMRs) can provide medical institutes with a number of research materials, which could promote the development of medical field. In order to protect patients' privacy while achieving efficient medical data sharing, we propose a privacy-preserving medical data sharing scheme based on consortium blockchain. In the scheme, a conditional anonymous tracing mechanism is designed to protect users' privacy, in which malicious users can be tracked when illegal behavior occurs. However, as the number of users grows, masses of medical data might touch the storage bottleneck of blockchain. Therefore, an on-chain-off-chain storage model is designed to alleviate the storage burden of blockchain, in which only the metadata of EMRs are recorded in blockchain while the patients' EMRs are stored in cloud after being encrypted. In order to resist the collusion attack, an improved proxy re-encryption scheme is introduced to ensure that EMRs can only be accessed by the authorized data requester. Moreover, security analysis and simulation demonstrate that the proposed scheme is more secure and efficient.
SponsorThis work is supported by the Key Industry Innovation Chain Project of Shaanxi (No. 2019ZDLGY13-05, No. 2019ZDLGY12-01), and Collaborative Innovation Center of Information Sensing and Understanding at Xidian University.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectMedical Data
TitleA Privacy-Preserving Medical Data Sharing Scheme Based on Consortium Blockchain
TypeConference Paper
Pagination1-6
Volume Number2020-January
dc.accessType Abstract Only


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