4.6 Article

Quantum hacking on quantum key distribution using homodyne detection

期刊

PHYSICAL REVIEW A
卷 89, 期 3, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.89.032304

关键词

-

资金

  1. National Basic Research Program of China [2011CBA00200, 2011CB921200]
  2. National Natural Science Foundation of China [60921091, 61101137]
  3. French National Research Agency, through the HIPERCOM [2011-CHRI-006]
  4. DIRECCTE Ile-de-France through the QVPN [FEDER-41402]
  5. European Union through the Q-CERT [FP7-PEOPLE-2009-IAPP]
  6. NSERC

向作者/读者索取更多资源

Imperfect devices in commercial quantum key distribution systems open security loopholes that an eavesdropper may exploit. An example of one such imperfection is the wavelength-dependent coupling ratio of the fiber beam splitter. Utilizing this loophole, the eavesdropper can vary the transmittances of the fiber beam splitter at the receiver's side by inserting lights with wavelengths different from what is normally used. Here, we propose a wavelength attack on a practical continuous-variable quantum key distribution system using homodyne detection. By inserting light pulses at different wavelengths, this attack allows the eavesdropper to bias the shot-noise estimation even if it is done in real time. Based on experimental data, we discuss the feasibility of this attack and suggest a prevention scheme by improving the previously proposed countermeasures.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据