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Physics World

The key to our quantum future

Tushna Commissariat

Published Dec 1, 2021• 1 citation
Publisher

Abstract

Safeguarding our communications data and infrastructures will become a much harder task in a quantum-enabled future. KETS Quantum Security chief executive Chris Erven talks to Tushna Commissariat about how integrating quantum-based systems into existing communication is key.
DOI
10.1088/2058-7058/34/12/37

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Sixth-generation (6G) networks offer unprecedented ultra-reliability, capacity, and low-latency communication. Nevertheless, the same developments also pose security threats to complex communication infrastructures that may be resistant to traditional cryptographic tools, especially in the context of quantum computing. Quantum Key Distribution (QKD) is an innovative technique for achieving unconditional security that leverages quantum-mechanical principles to share cryptographic keys securely. This paper discusses how QKD can be integrated into 6G and beyond networks and used to ensure the confidentiality and integrity of data across applications such as autonomous systems, the Internet of Things (IoT), and smart city infrastructure. This paper explores the architecture of QKD-based 6G communication, key-generation systems, and quantum-resistant network layers. It also examines scalability, synchronization, and hardware implementation, and suggests possible hybrid approaches for integrating classical and quantum security protocols. The results imply that the idea of QKD may become the foundation of safeguarded communication systems in the future, ensuring resilience against attacks in the quantum era and enabling individuals to trust the next generation of wireless.