空闲空间QKD检测耦合失配漏洞研究

IF 2.2 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Journal of Quantum Electronics Pub Date : 2023-09-25 DOI:10.1109/JQE.2023.3318585

Tanya Sharma;Ayan Biswas;Pooja Chandravanshi;Shashi Prabhakar;Ravindra P. Singh

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引用次数: 0

摘要

QKD协议的实际实现涉及不完美的设备，窃听者可能会利用这些设备获取导致攻击的信息。在这里，我们已经考虑了探测器之间耦合失配的影响。我们发现，根据窃听者和接收器之间的相互信息，由于接收器检测器的耦合失配，可能会向Eve泄漏信息。实验是针对信号的高斯和拉盖尔-高斯模式进行的。在使用卫星实施自由空间QKD时，这一方面变得至关重要。结果表明，考虑检测耦合失配对于避免侧信道攻击至关重要。

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Vulnerability in Free Space QKD Due to Detection Coupling Mismatch

Practical implementations of QKD protocols involve devices which are not perfect, and an eavesdropper may exploit this to gain information leading to attacks. Here we have considered the effects of coupling mismatch between the detectors. We find possible information leakage to Eve due to coupling mismatch at the receiver’s detectors in terms of mutual information between the eavesdropper and receiver. The experiment has been performed for the Gaussian and Laguerre-Gaussian modes of the signal. This aspect becomes essential while implementing free space QKD using a satellite. The results suggest that accounting for detection coupling mismatch is crucial to avoid side-channel attacks.

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来源期刊

IEEE Journal of Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.70

自引率

4.00%

发文量

审稿时长

3.0 months

期刊介绍： The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics. The Journal comprises original contributions, both regular papers and letters, describing significant advances in the understanding of quantum electronics phenomena or the demonstration of new devices, systems, or applications. Manuscripts reporting new developments in systems and applications must emphasize quantum electronics principles or devices. The scope of JQE encompasses the generation, propagation, detection, and application of coherent electromagnetic radiation having wavelengths below one millimeter (i.e., in the submillimeter, infrared, visible, ultraviolet, etc., regions). Whether the focus of a manuscript is a quantum-electronic device or phenomenon, the critical factor in the editorial review of a manuscript is the potential impact of the results presented on continuing research in the field or on advancing the technological base of quantum electronics.