Secured Electronic Clinical Unified Record Exchange using Blockchain Ledger and Optimized Cryptography

Authors

  • Arti Krushnarao Walzade Department of Computer Science and Engineering and Research Scholar, Dr. A. P. J. Abdul Kalam University, Indore
  • Pradnya A. Vikhar Department of Computer Science and Engineering and Research Supervisor, Dr. A. P. J. Abdul Kalam University, Indore, (M.P.), India.

Keywords:

EMRs, SECURE-BLOCK, CA, RSA , BC

Abstract

Electronic Medical Records (EMRs) contain patients’ critical personal and medical information, and safeguarding their privacy and confidentiality is paramount in healthcare. However, centralized EMR systems lack transparency, trust, and security, exposing them to data breaches and jeopardizing patient data privacy. This paper proposes a novel and robust EMR sharing system, Secured Electronic Clinical Unified Record Exchange, using Blockchain Ledger and Optimized Cryptography (SECURE-BLOCK), utilizing cutting-edge blockchain technology, cryptographic techniques, and access controls to address these challenges. The proposed system leverages blockchain technology to create a decentralized, transparent, and secure environment for EMR sharing. Smart contracts enforce access controls and authorization rules, permitting only authorized entities to access and modify EMRs. Digital certificates issued by a Certification Authority (CA) verify the identity of entities making transactions, enhancing trust and security. In addition to blockchain, an improved hybrid cryptographic technique using the Improved RSA algorithm (RSA+) and the Improved Blowfish Cryptography (BC+) algorithm is employed to protect the confidentiality and integrity of EMRs. Encryption algorithms encrypt the EMR data before storing it on the blockchain, ensuring only authorized users with decryption keys can access it. Hash functions generate unique digital fingerprints of EMR data, stored as hash values on the blockchain, ensuring data integrity and tamper-proofing. The proposed system also incorporates an access control and authorization mechanism, allowing only authenticated and authorized users to access and modify EMRs. An authentication server authenticates and authorizes user access, adding a layer of security. Network administrators maintain blockchain nodes, ensuring system integrity and availability. Test outcomes indicate that SECURE-BLOCK rapidly produces hashes, requiring merely 46 milliseconds to generate 100 blocks. Additionally, the system's utilization of RSA+ coupled with BC+ cryptography surpasses alternative cryptographic pairings, achieving encryption and decryption in just 3.106 seconds for 96-bit data. Such results emphasize SECURE-BLOCK's proficiency and reliability in ensuring secure Electronic Medical Records sharing.

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Published

12.01.2024

How to Cite

Walzade, A. K. ., & Vikhar , P. A. . (2024). Secured Electronic Clinical Unified Record Exchange using Blockchain Ledger and Optimized Cryptography. International Journal of Intelligent Systems and Applications in Engineering, 12(12s), 46–59. Retrieved from https://ijisae.org/index.php/IJISAE/article/view/4491

Issue

Vol. 12 No. 12s (2024)

Section

Research Article

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