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

by   Jingwei Liu, et al.

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.


page 1

page 2

page 3

page 4

page 5

page 6


SPChain: Blockchain-based Medical Data Sharing and Privacy-preserving eHealth System

The development of eHealth systems has brought great convenience to peop...

A blockchain-based secure storage scheme for medical information

Medical data involves a large amount of personal information and is high...

SmartCoAuth: Smart-Contract privacy preservation mechanism on querying sensitive records in the cloud

Sensitive records stored in the cloud such as healthcare records, privat...

E-Tenon: An Efficient Privacy-Preserving Secure Open Data Sharing Scheme for EHR System

The transition from paper-based information to Electronic-Health-Records...

Blockchain-Enabled Secure and Smart HealthCare System

Technology has evolved over the years, making our lives easier. It has i...

A Privacy-Preserving Healthcare Framework Using Hyperledger Fabric

Electronic health record (EHR) management systems require the adoption o...

Blockchain-Enabled EHR Framework for Internet of Medical Things

The Internet of Medical Things (IoMT) offers an infrastructure made of s...

Please sign up or login with your details

Forgot password? Click here to reset