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Lecture notes in networks and systems

Quantum Key Distribution and Blockchain Based Secure Authentication in Medical Cyber-Physical Systems

Piyush P. Gawali, Parikshit Narendra Mahalle, Gitanjali R. Shinde, Nilesh P. Sable, Dattatray G. Takale, Janki Barot

Published Jan 1, 2023• 4 citations
Publisher
DOI
10.1007/978-981-99-6568-7_54

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The sixth-generation wireless communication(6G)(6 \mathrm{G})(6G)promises advancements in speed, latency, and connectivity to facilitate revolutionary technology like holographic communication, extensive AI, and Internet of Everything (IoE). Such breakthroughs come with sophisticated cyber security issues like ultra-dynamic attack surfaces, decentralized device systems, and quantum-vulnerable encryption protocols. To counter these challenges, this paper investigates the application of blockchain technology and quantum computing as solutions for 6G cyber security improvement. Blockchain provides a tamper-proofed, decentralized system that guarantees data integrity, secure authentication, and transparent access control among heterogeneous devices. However, quantum computing also provides solutions such as post-quantum cryptography (PQC) and quantum key distribution (QKD) that can enhance communication resilience against quantum and conventional assaults.
Background and Aims: Rising quantum hazards and flaws in conventional encryption make cloud-based healthcare data security harder. Quantum-Secure HealthChain, a new architecture using blockchain and quantum computing, improves medical data security, patient privacy, and data fidelity. Methods: To prevent quantum attacks, the proposed system uses Quantum Key Distribution (QKD) for safe cryptographic key exchange and quantum-resistant encryption. Blockchain technology secures medical records, while multi-layered encryption ensures data privacy. Quantum Biometric Authentication improves access control using quantum entanglement and biometric data. Key generation, encryption, blockchain storage, authentication, and decryption are system process steps. Experimental evaluation focuses on encryption speed, resource economy, throughput, and scalability using simulated healthcare data. Results: Experimental data demonstrate system strength and efficiency. Encryption and decryption perform consistently for 1 to 100 MB data sizes with negligible overhead. Throughput can reach 105 transactions per second under normal demand; CPU (82%) and memory (210 MB) utilization are low. Scalability studies show linear expansion lets the system handle increased data volumes and user demands without sacrificing performance. Security study confirms quantum attack, data corruption, and unauthorized access resistance. Conclusion: Quantum-Secure HealthChain offers a revolutionary method to cloud-based healthcare system security. Blockchain-quantum computing integration ensures strong authentication, safe key exchange, and quantum-resistant encryption. Its security, scalability, and efficiency make it a future-ready platform for safe medical data management, reducing quantum computing hazards.