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Hybrid Solution for Privacy-Preserving Access Control for Healthcare DataSMITHAMOL, M. B. , RAJESWARI, S.
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data privacy, electronic medical records, internet of things, cloud, access control
encryption(11), cloud(10), attribute(9), security(7), secure(7), data(7), control(6), privacy(5), policy(5), grained(5)
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About this article
Date of Publication: 2017-05-31
Volume 17, Issue 2, Year 2017, On page(s): 31 - 38
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2017.02005
Web of Science Accession Number: 000405378100005
SCOPUS ID: 85020138510
The booming in cloud and IoT technologies has accelerated the growth of healthcare system. The IoT devices monitor the patient's health, and upload collected data as Electronic Medical Records (EMRs) to the cloud for storage and sharing. Outsourcing EMRs to the cloud introduce new security and privacy challenges. In this paper, we proposed a novel architecture ensuring security and privacy for the outsourced health records. The proposed model uses partially ordered set (POSET) for constructing the group based access structure and Ciphertext-Policy Attribute-Based Encryption (CP-ABE) to provide fine-grained EMR access control. The modified group based CP-ABE (G-CP-ABE) minimizes the computational overhead by reducing the number of leaf nodes in the access tree. Also, the proposed G-CP-ABE framework merges symmetric encryption and CP-ABE scheme to minimize the overall encryption time. As a result, G-CP-ABE can be used to monitor health conditions even from a resource constrained IoT device. The performance analysis shows the efficiency of the proposed model, making it suitable for practical use.
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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