Paper Info
Title
BPDS: A Blockchain based Privacy-Preserving Data Sharing for Electronic Medical Records.
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 privacypreserving 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 CPABE-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.
Year
DOI
Venue
2018
10.1109/glocom.2018.8647713
IEEE Global Communications Conference
DocType
Volume
ISSN
Conference
abs/1811.03223
2334-0983
Citations 
PageRank 
References 
2
0.37
11
Authors
6
Name
Order
Citations
PageRank
Jingwei Liu1299.89
Xiaolu Li220.37
Lin Ye362.14
Hongli Zhang416724.05
X. Du52320241.73
Mohsen Guizani66456557.44