Sivakumar Nagarajan

Work place: School of Computer Science and Engineering, Vellore Institute of Technology, Vellore, India



Research Interests: Wireless Sensor Networks, Image Processing, Machine Learning, Artificial Intelligence


Dr. Sivakumar Nagarajan received his B.E. degree in Computer Science and Engineering from University of Madras and M.Tech from Dr. M.G.R. Educational and Research Institute, Chennai. He received his Ph.D in Computer Science and Engineering from Anna University. He is currently working as an Associate Professor in the School of Computer Science and Engineering, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India. His area of interest includes Image Processing, Artificial Intelligence and Machine Learning, and Wireless Sensor Networks.

Author Articles
The Security of Blockchain-based Electronic Health Record: A Systematic Review

By C. Eben Exceline Sivakumar Nagarajan

DOI:, Pub. Date: 8 Dec. 2023

The healthcare industry makes rampant strides in sharing electronic health records with upgraded efficiency and delivery. Electronic health records comprise personal and sensitive information of patients that are confidential. The current security mechanism in cloud computing to store and share electronic health records results in data breaches. In the recent era, blockchain is introduced in storing and accessing electronic health records. Blockchain is utilized for numerous applications in the healthcare industry, such as remote patient tracking, biomedical research, collaborative decision making and patient-centric data sharing with multiple healthcare providers. In all circumstances, blockchain guarantees immutability, data privacy, data integrity, transparency, interoperability, and user privacy that are strictly required to access electronic health records. This review paper provides a systematic study of the security of blockchain-based electronic health records. Moreover, based on thematic content analysis of various research literature, this paper provides open challenges in the blockchain-based electronic health record.

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