Attribute-Based Encryption and Key Agreement Protocol for Data Security in EHR Systems

Elo, Murphy Efetobore (2023) Attribute-Based Encryption and Key Agreement Protocol for Data Security in EHR Systems. Masters thesis, Dublin, National College of Ireland.

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Abstract

Data security in Health Information Exchange (HIE) plays a vital role in ensuring continuous protection and consistency of patient data throughout its lifetime in the system. Specifically, unauthorized access, continuity of data protection, and secure communication for interoperability and interactions between external systems have become challenging problems for Electronic Health Record (EHR) systems. Existing approaches focus on blockchain and attribute-based encryption mechanisms as solutions. While these approaches have succeeded in providing suitable access control mechanisms, they don’t fully address the re-encryption of modified data by authorized users in EHR systems. Also, a secure communication channel for interactions with external systems is needed. The proposed algorithms in this research work provide a robust solution that extends the Attribute-Based Encryption (ABE) for continuous encryption of patient data after modification requests. It also leverages the Elliptic Curve Diffie-Hellman (ECDH) for secured communication with external systems or applications. A proof of concept EHR system and mobile application have been developed for evaluation. The result shows the efficiency of the proposed algorithms to provide continuity and secure communication for an attribute-based EHR system.

Item Type:	Thesis (Masters)
Supervisors:	Name Email Mijumbi, Rashid UNSPECIFIED
Subjects:	T Technology > T Technology (General) > Information Technology > Cloud computing Q Science > QA Mathematics > Algebra > Algorithms > Computer algorithms Q Science > QA Mathematics > Computer software > Computer Security T Technology > T Technology (General) > Information Technology > Computer software > Computer Security H Social Sciences > HM Sociology > Information Science > Communication > Medical Informatics
Divisions:	School of Computing > Master of Science in Cloud Computing
Depositing User:	Tamara Malone
Date Deposited:	20 Aug 2024 16:12
Last Modified:	20 Aug 2024 16:12
URI:	https://norma.ncirl.ie/id/eprint/7050

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