Quantum Network Security: A Quantum Firewall Approach

Hussein, Shahad A. and Mahdi, Suadad S. and Abdullah, Alharith A. (2025) Quantum Network Security: A Quantum Firewall Approach. INFOCOMMUNICATIONS JOURNAL, 17 (1). pp. 48-55. ISSN 20612079

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Abstract

The increasing prominence of quantum networks has necessitated the exploration of their vulnerabilities and the development of effective countermeasures. This paper investigates the potential threats faced by quantum networks, particularly focusing on the exploitation of quantum TCP-threeway handshake connections. To mitigate these attacks, a novel approach involving the implementation of a quantum firewall is proposed. The paper emphasizes that the security of quantum networks is primarily reliant on pre-established agreements for creating quantum entanglement among devices, which inherently limits external attacks. However, it highlights the adverse impact of quantum assaults on network availability due to the consumption of quantum bits required for establishing connections. By leveraging unique node identification and coherence time of quantum memory, the proposed quantum firewall effectively mitigates the effects of attacks while ensuring network availability. Through this security strategy, the paper demonstrates the robustness of the quantum firewall in safeguarding the integrity and operation of quantum networks against potential threats.

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