1Research Scholar, Dept. of ECE, Dr. M.G.R Educational and Research Institute, Chennai, India. Email: deanacademics@mamse.in
2,4Professor, Dept. of ECE, Dr. M.G.R Educational and Research Institute, Chennai, India. Email: anand.ece@drmgrdu.ac.in
3Dept. of ECE, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
Received: 17th Oct, 2025; Revised: 28th Dec, 2025; Accepted: 20th Jan, 2026; Available Online: 13th Feb, 2026
Healthcare data security and privacy are predominant challenges in modern digital health systems and their data management. This article presents a novel blockchain-based access control framework that leverages Ethereum smart contracts and Inter Planetary File System (IPFS) to ensure secure, transparent, and efficient management of electronic health records (EHRs). The proposed system addresses key issues including data privacy, unauthorized access, and centralized control vulnerabilities through a hybrid Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC) mechanism. Our proposed mathematical modeling demonstrates the security guarantees with a better collision probability of Collision ≤ 2−128 and improved gas cost optimization, of about 35% reduction compared to other traditional approaches. Implementation results show the average transaction latency of 2.3 seconds, throughput of 1,200 transactions per second, and 99.97% of system availability. This framework provides cryptographic guarantees for data integrity with AES 256 encryption and maintains regulatory compliance with HIPAA and GDPR standards. Performance analysis reveals 65% storage cost reduction and 285% return on investment over 5-year implementation period.
Keywords: Blockchain, Healthcare, Access Control, Smart Contracts, IPFS, Electronic Health Records, Privacy, Security, Mathematical Modeling.
How to cite this article: Suyambu GT, Anand M, Srinivasan S, Janakirani M. HIPAA and GDPR Standard Hybrid RBAC-ABAC Access Control Framework for Healthcare Data Management using Blockchain. Int J Drug Deliv Technol. 2026;16(2): 8-13. DOI: 10.25258/ijddt.16.2.2
Source of support: None.
Conflict of interest: None