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INTERNATIONAL JOURNAL OF RECENT TRENDS IN TECHNOLOGY AND ENGINEERING (IJRTTE)

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Post-Quantum Blockchain for High-Security Critical Infrastructure

P. Thamaraiselvi
Associate Professor, Kumaraguru College of Technology, B School, India.
A. Praveen Kumar
Assistant Professor, Faculty of Management, SRM Institute of Science and Technology, Ramapuram Campus, India.
V. L. Kiranmai
Department of physics, KKR & KSR Institute of Technology & Sciences, India.

Keywords: Post-Quantum Blockchain, Critical Infrastructure Security, Quantum-Resilient Consensus, Zero-Trust Access Control, Dynamic Sharding

Abstract

Critical infrastructure systems, including energy and healthcare are independent critical infrastructure systems with a high vulnerability to new quantum-capable cyber threats that compromise traditional cryptography. The paper suggests a Post-Quantum Blockchain architecture that is specific to high-security settings and includes such aspects as lattice-based encryption and quantum key distribution (QKD). It is characterized by a quantum-resistant protocol to reach consensus to achieve better fault tolerance and ensure secure synchronization as well as an access control model based on zero-trust. The framework uses hybrid AI in detecting real time cases of anomalies and dynamic sharding to achieve scalability. Effective performance is showing positive results on latency, detection accuracy and resilience in experimental performance than on classical systems. The purpose of this PQB-CI framework is to reduce or considerably reduce the risks in the quantum era and provide the national critical infrastructure functions within the decade.
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Published
2025-06-30
Pages
1-10
Issue
Vol. 4 No. 2 (2025): IJRTTE - 04 - 02
Section
Articles

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