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Lecture notes on data engineering and communications technologies

Quantum Computing in Cybersecurity Using Quantum Key Distribution and Quantum Random Number Generator

Archit Kumar, Shilpi Sharma, Narayan Chandra Debnath

Published Jan 1, 2025• 0 citations
Publisher
DOI
10.1007/978-3-031-81308-5_27

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The success of cybersecurity security depends on cryptographic protocols because they shield sensitive information as well as communication channels and serve to authenticate procedures. These protocols derive their foundation from producing robust random numbers because these numbers serve as the basis for encryption key creation and digital signature generation along with secure access protocols. Random number generators used traditionally such as PRNGs and HRNGs suffer from determinism, and predictability flaws combined with the risk of outside tampering thus affecting their reliability. The weaknesses in cryptographic security become dangerous because of the rising quantum computer threats that would break current encryption methods. Quantum Random Number Generators (QRNGs) introduce revolutionary changes through the quantum mechanics properties of quantum superposition and photon polarization and vacuum fluctuations for truly random number generation. The use of QRNGs brings high-security benefits by giving algorithms unpredictable outputs that hackers cannot predict nor alter without being detected. Implementing QRNGs in cybersecurity networks enables better encryption algorithms as well as securely protected communication systems with strong resistance against contemporary cyber attacks. This article outlines the advantages of QRNGs over traditional RNGs, applications in cryptographic systems, and how they can protect against threats from emerging quantum computing technologies. It also covers the challenges in implementing QRNGs, including hardware complexity, cost, and integration into existing security infrastructures. As cyber threats continue to evolve, QRNGs represent an important milestone in ensuring robust and future-proof cryptographic security