BPDS: A Blockchain Based Privacy-Preserving Data Sharing for Electronic Medical Records

Jingwei Liu, Xiaolu Li, Lin Ye, Hongli Zhang, Xiaojiang Du, Mohsen Guizani

Research output: Contribution to journalConference articlepeer-review

206 Scopus citations

Abstract

Electronic medical record (EMR) is a crucial form of healthcare data, currently drawing a lot of attention. Sharing health data is considered to be a critical approach to improve the quality of healthcare service and reduce medical costs. However, EMRs are fragmented across decentralized hospitals, which hinders data sharing and puts patients' privacy at risks. To address these issues, we propose a blockchain based privacy-preserving data sharing for EMRs, called BPDS. In BPDS, the original EMRs are stored securely in the cloud and the indexes are reserved in a tamper-proof consortium blockchain. By this means, the risk of the medical data leakage could be greatly reduced, and at the same time, the indexes in blockchain ensure that the EMRs can not be modified arbitrarily. Secure data sharing can be accomplished automatically according to the predefined access permissions of patients through the smart contracts of blockchain. Besides, the joint-design of the CP-ABE-based access control mechanism and the content extraction signature scheme provides strong privacy preservation in data sharing. Security analysis shows that BPDS is a secure and effective way to realize data sharing for EMRs.

Original languageEnglish
Article number8647713
JournalProceedings - IEEE Global Communications Conference, GLOBECOM
DOIs
StatePublished - 2018
Event2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates
Duration: 9 Dec 201813 Dec 2018

Fingerprint

Dive into the research topics of 'BPDS: A Blockchain Based Privacy-Preserving Data Sharing for Electronic Medical Records'. Together they form a unique fingerprint.

Cite this