Beyond boundaries: quantum cryptography safeguarding industry 5.0 in smart cities
C. S. Shradha, D. A. Aaradhana · IET conference proceedings. · 2025
In the realm of advancing smart cities within the paradigm of Industry 5.0, the integration of technologies like the Internet of Things (IoT) presents transformative opportunities alongside heightened cybersecurity risks. Classical cryptographic methods, crucial for securing digital communications, face escalating threats from quantum computing capabilities. Quantum cryptography, specifically Quantum Key Distribution (QKD), emerges as a promising solution. By leveraging principles from quantum mechanics, QKD ensures unparalleled security by using quantum states of particles to protect the confidentiality and integrity of transmitted data. This research explores the principles of QKD and its application within Industry 5.0 contexts, encompassing IoT, artificial intelligence (AI), and cyber-physical systems. Case studies underscore the feasibility of integrating quantum cryptography into smart city infrastructures, demonstrating its efficacy in enhancing security despite initial complexities. The study proposes strategic investments in research and development, policy frameworks, educational initiatives, and pilot projects to facilitate the widespread adoption of quantum cryptography. Additionally, the paper discusses implications, identifies research gaps, and outlines future directions for further exploration in this critical area.