论文标题
在1500-2100 nm范围内的量子密钥分布组件漏洞，用于特洛伊木马攻击
Quantum key distribution component loopholes in 1500-2100 nm range perspective for Trojan-horse attacks
论文作者
论文摘要
量子密钥分布（QKD）系统中使用的组件的漏洞会影响其实施安全性，并且必须在系统开发和安全分析期间考虑。在本文中，我们调查了光纤元素的传输，这些元素在QKD系统中通常用于设计针对Trojan-Horse攻击的对策，在1500-2100 nm范围内。结果，我们发现了其传输光谱中的漏洞，这些漏洞开放了窃听的可能性。我们还提出了一个简单的被动对策，基于违反单模纤维中内部反射的总体反射，这导致了至少60 dB的额外插入损失，对于长达1830 nm的波长而言，双通trojan-horse探测脉冲。
Vulnerabilities of components used in quantum key distribution (QKD) systems affect its implementation security and must be taken into consideration during system development and security analysis. In this paper, we investigated transmission of fiber optical elements, which are commonly used in QKD systems for designing countermeasures against Trojan-horse attacks, in 1500-2100 nm range. As a result, we found loopholes in their transmission spectra which open possibilities for eavesdropping. We also suggested a simple passive countermeasure based on violation of total internal reflection in single-mode fiber, that leads to additional insertion losses of at least 60 dB for double-pass Trojan-horse probe pulses for wavelengths longer than 1830 nm.
