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International Journal of Sensor Networks

A quantum key injection scheme for mobile terminals based on commercial quantum key distribution

Xiaohui Li, Dexin Zhu, Jianan Wu, Huan Wang, Lifeng Yang, Lijun Song

Published Jan 1, 2022• 2 citations
Publisher

Abstract

In order to satisfy the demand of mobile secure communication for quantum keys, this study proposes a commercial quantum key distribution (QKD) based quantum key injection scheme for mobile terminals. It integrates a quantum network with a classic network, employs a quantum key injection device, and applies an encryption strategy to securely transmit the quantum key from the quantum network to the classic network for injection into a mobile terminal.Experimental results in a real quantum key distribution environment show that the fusion network runs stably, and the injection of the quantum key at the mobile terminal is realised effectively, which can meet the demands of mobile secure communication for quantum keys.

DOI
10.1504/ijsnet.2022.121177

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In order to satisfy the demand of mobile secure communication for quantum keys, this study proposes a commercial quantum key distribution (QKD) based quantum key injection scheme for mobile terminals. It integrates a quantum network with a classic network, employs a quantum key injection device, and applies an encryption strategy to securely transmit the quantum key from the quantum network to the classic network for injection into a mobile terminal.Experimental results in a real quantum key distribution environment show that the fusion network runs stably, and the injection of the quantum key at the mobile terminal is realised effectively, which can meet the demands of mobile secure communication for quantum keys.
A governmental and business organizations employ handheld devices like palmtops and smart cellular phones for communication, collaboration, and purchases, the problem of privacy and security arise. Essential encryption systems present themselves as a problem to the current nature of mobility since most of the previous encryption methods evolved with the centralized systems. Quantum cryptography can thus be regarded as a perfect solution to the above challenges given the fact that it employs principles of quantum mechanics such as quantum key distribution (QKD) to secure communications in mobile platforms. This paper aims at examining the use of quantum cryptography in mobile computing systems whereby an endeavor is made to determine how quantum communication algorithms can be incorporated into the current mobile communication standards. The efficiency of the quantum cryptography is also discussed in the context of protection from threats that are characteristic for the mobile networks, such as wiretapping and data theft. Also, we touch on such issues as how practical, easily scalable, and suitable for mobile systems quantum cryptography is in terms of computational and network burden. Thus, in this paper, the author would like to show that by applying quantum cryptography, end-to-end privacy can be effectively achieved in the field of mobile computing and explain its significance for the development of next generations of mobile security.
Mobile adhoc networks (MANETs) are characterized by their dynamic and decentralized nature, making them inherently vulnerable to security threats. This paper proposes a novel security framework that integrates Quantum Key Distribution (QKD) with error correction, privacy amplification, and distributed key management to enhance the security of MANETs. The experimental analysis was conducted using simulations to evaluate the effectiveness of the proposed framework across various node densities and mobility patterns. Our results demonstrate improved security in key exchanges but also highlight trade-offs in network performance metrics such as throughput and latency.
Abstract The increasing demand for secure communications in mobile and critical infrastructure networks has led to the emergence of Quantum Key Distribution (QKD) as a promising technique for enhancing cryptographic security in next-generation systems. This paper reviews recent progress in integrating QKD within mobile and wireless networks. It focuses on key enabling technologies, such as Software-Defined Networking (SDN), satellite-based, and aerial networks. The paper critically analyzes how these frameworks can address evolving security requirements in sixth-generation (6G) networks and smart city infrastructures. Additionally, it examines the role of Machine Learning (ML) in improving QKD performance and adaptability. Challenges such as key management, mobility support, scalability, and interoperability are explored. These challenges help identify current barriers and research directions. By consolidating developments and highlighting unresolved issues, this study offers researchers valuable insights. It discusses the convergence of quantum communication and advanced mobile architectures, facilitating the design of secure and resilient future communication infrastructures.
Quantum key distribution (QKD) offers unconditional information security by allowing two distant users to establish a common encryption key resilient to hacking. Resultingly, QKD networks interconnecting critical infrastructure and enabling the secure exchange of classified information, can provide a solution to the increasing number of successful cyberattacks. To efficiently deploy quantum networks, the technology must be integrated over existing communication infrastructure, such as optical fibre links. Yet, QKD poses stringent requirements on the conditions of the network over which it is deployed. This work demonstrates the first quantum communication network in Cyprus via the deployment of a multi-node quantum network, exploiting existing commercial underground optical fibre. The network employs bidirectional occupation of fibres and wavelength multiplexing in a ring architecture to achieve, with minimal use of dark fibres, high-rate QKD. Results obtained reveal consistent key generation rates across all nodes, confirming reliable operation in a real-world environment. This deployment highlights the feasibility of leveraging existing telecom infrastructure for quantum-secured communication, marking a significant step toward scalable and cost-effective quantum networks suited for critical applications.
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We propose a free-space reconfigurable quantum key distribution (QKD) network to secure communication among mobile users. Depends on the trustworthiness of the network relay, the users can implement either the highly secure measurement-device-independent QKD, or the highly efficient decoy state BB84 QKD. Based on the same quantum infrastructure, we also propose a loss tolerant quantum position verification scheme, which could allow the QKD users to initiate the QKD process without relying on pre-shared key.