HealthShieldAB - Revolutionizing EHR System using Hybrid Blockchain Technologies

Abstract: - A revolutionary method of handling electronic health records (EHRs) is provided by the combination of blockchain technology into healthcare systems, which solves important issues with security, scalability, and accessibility. This study suggests a brand-new blockchain- based EHR system that goes beyond the drawbacks of current options, which usually rely on IPFS or centralized storage and SHA-256 for security. In addition to a hybrid storage and consensus scheme that uses IPFS (Interplanetary File System) and Practical Byzantine Fault Tolerance (PBFT) for improved data integrity, fault tolerance, and consensus performance, the suggested system introduces a hybrid secure algorithm that combines Argon2 and AES to guarantee strong encryption. To further protect against unwanted access, multi-factor authentication (MFA) is included. Constructed using cutting-edge blockchain technologies like MetaMask, Ganache, and Truffle, the system facilitates smooth communication with a decentralized network. Significant gains in operational effectiveness, data breach security, and key performance metrics—such as latency, throughput, bandwidth utilization, memory consumption, and CPU efficiency—are shown by simulation findings from actual healthcare settings. These results highlight how the suggested approach has the ability to completely change healthcare data management by guaranteeing the safe, dependable, and effective handling of private medical data. Keywords: data breach protection, blockchain, hybrid security, hybrid storage, scalability, accessibility, consensus mechanism, fault tolerance