Blockchain Based Hybrid Encryption Techniques to Enhance Security in Healthcare Networks

Abstract

Conventional Public Key Infrastructure (PKI) systems, including Log-based PKI and Web-of-Trust PKI, are prone to single points of failure and hence are susceptible to security threats. To overcome these issues, this study suggests a Blockchain-based PKI system for secure data transmission in healthcare networks. The system combines hybrid encryption methods with a trust-based self-organizing network to improve security, minimize energy consumption, and enhance computational efficiency. Node clustering is done through trust calculations for effective certificate authority selection and delivery. Routing attacks are also simulated to test the resilience of the network. Comparison of trust-based clustering and self-observing networks shows increased energy efficiency and security in healthcare transactions based on blockchain. The system proposed ensures decentralized, transparent, and tamper-proof PKI operations, providing better security and resilience to medical data transactions