Backflash Attack on Coherent One-Way Quantum Key Distribution

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-04-02 DOI:10.1109/JPHOT.2025.3557214

Ashutosh Kumar Singh;Nilesh Sharma;Vaibhav Pratap Singh;Anil Prabhakar

引用次数: 0

Abstract

In this article, we experimentally demonstrate an eavesdropper's (Eve's) information gain by exploiting the breakdown flash generated by the single photon avalanche detector (SPAD) used in coherent one-way quantum key distribution (COW-QKD) setup. Unlike prior studies focusing on the device-level characterization of backflash photons, this work quantifies Eve's learning with a QKD system that includes a key distillation engine (KDE). Eve's learning is quantified using the “Backflash” photons emitted by SPAD and the information available on the classical channel. Experimentally observed data are in good agreement with the theoretical simulations. Some mitigation strategies against the backflash attack are also discussed.

查看原文本刊更多论文

相干单向量子密钥分发中的逆闪攻击

在本文中，我们通过实验证明了利用相干单向量子密钥分配（COW-QKD）设置中使用的单光子雪崩探测器（SPAD）产生的击穿闪光可以获得窃听者（Eve）的信息增益。与之前的研究不同，该研究侧重于逆闪光子的设备级表征，该研究使用一个包括关键蒸馏引擎（KDE）的QKD系统来量化夏娃的学习。伊芙的学习是通过SPAD发射的“逆闪”光子和经典信道上可用的信息来量化的。实验观测数据与理论模拟结果吻合较好。本文还讨论了针对反闪攻击的一些缓解策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.