Privacy preserving content disclosure for enabling sharing of electronic health records in cloud computing

2014 ◽  
Author(s):  
Anju Mohandas ◽  
Sabitha S
Keyword(s):  
Cloud Computing ◽  
Electronic Health Records ◽  
Privacy Preserving ◽  
Health Records ◽  
Electronic Health

An efficient privacy solution for electronic health records in cloud computing

2020 ◽  
Vol 9 (4) ◽  
pp. 201
Author(s):  
Mbarek Marwan ◽  
Fatima Sifou ◽  
Feda AlShahwan ◽  
Abdelkarim Ait Temghart
Keyword(s):  
Cloud Computing ◽  
Electronic Health Records ◽  
Health Records ◽  
Electronic Health

scholarly journals Flexible Access Control Mechanism for Cloud stored EHR using Consortium Blockchain

2021 ◽  
Author(s):  
Eben Exceline C ◽  
Sivakumar Nagarajan
Keyword(s):  
Cloud Computing ◽  
Access Control ◽  
Electronic Health Records ◽  
Data Privacy ◽  
Data Science ◽  
Data Integrity ◽  
Smart Contracts ◽  
Health Records ◽  
Fine Grained ◽  
Electronic Health

Abstract The persevering pursuit of security has proved historically limiting the implementation of significant design improvements for Electronic Health Records (EHR). Such a vital requirement for these kinds of technical development is revamped now. This is because the patients are motivated by personalization and data science to participate in the health information sharing. The implementation of cloud computing has already shown substantial benefits for both clinical organizations and patients in managing electronic health records. The prime security issue of cloud-based electronic health records is that the patient is physically unable to own a medical record whereas a clinical organization can maintain one for them. The latter may collude with centralized cloud servers. So, there is a vulnerability of such records being tampered with in order to hide the medical malpractices. So, maintaining data integrity and data privacy becomes a significant challenge when deploying cloud computing. Therefore, in this paper, a consortium blockchain-based cloud-stored electronic health record is proposed which provides data integrity, data privacy, storage scalability, and fine-grained access control. Each process in outsourcing electronic health records to the cloud is incorporated as a transaction in a consortium ethereum blockchain through smart contracts. Through smart contracts, an attribute-based contract key is generated for the users that can decrypt the encrypted data stored in the cloud. The attribute-based contract key allows only users who are authorized to access the information ensuring data privacy and fine-grained access control. Moreover, the proposed scheme is proved to provide tamper-proof although the medical records are controlled by a group of clinical organizations.

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