Noise-Resistant Feature-Aware Attack Detection Using Quantum Machine Learning

• URL: http://arxiv.org/abs/2601.06762v1
• Date: Sun, 11 Jan 2026 03:40:45 GMT
• Title: Noise-Resistant Feature-Aware Attack Detection Using Quantum Machine Learning
• Authors: Chao Ding, Shi Wang, Jingtao Sun, Yaonan Wang, Daoyi Dong, Weibo Gao,
• Abstract summary: Continuous-variable quantum key distribution (CV-QKD) is a quantum communication technology that offers an unconditional security guarantee.<n>We propose a quantum machine learning (QML)-based attack detection framework (QML-ADF) that safeguards the security of high-rate CV-QKD systems.
• Score: 43.509065918669314
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Continuous-variable quantum key distribution (CV-QKD) is a quantum communication technology that offers an unconditional security guarantee. However, the practical deployment of CV-QKD systems remains vulnerable to various quantum attacks. In this paper, we propose a quantum machine learning (QML)-based attack detection framework (QML-ADF) that safeguards the security of high-rate CV-QKD systems. In particular, two alternative QML models -- quantum support vector machines (QSVM) and quantum neural networks (QNN) -- are developed to perform noise-resistant and feature-aware attack detection before conventional data postprocessing. Leveraging feature-rich quantum data from Gaussian modulation and homodyne detection, the QML-ADF effectively detects quantum attacks, including both known and unknown types defined by these distinctive features. The results indicate that all twelve distinct QML variants for both QSVM and QNN exhibit remarkable performance in detecting both known and previously undiscovered quantum attacks, with the best-performing QSVM variant outperforming the top QNN counterpart. Furthermore, we systematically evaluate the performance of the QML-ADF under various physically interpretable noise backends, demonstrating its strong robustness and superior detection performance. We anticipate that the QML-ADF will not only enable robust detection of quantum attacks under realistic deployment conditions but also strengthen the practical security of quantum communication systems.

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