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Conferences > EQEC > 2023 > eb_p > eb_p_14
  • Conference on Lasers and Electro-Optics/Europe (CLEO/Europe 2023) and European Quantum Electronics Conference (EQEC 2023)
  • Technical Digest Series (Optica Publishing Group, 2023),
  • paper eb_p_14

Resilience of Quantum Key Distribution Source against Laser-Damage Attack by a Variety of Lasers

Daria Ruzhitskaya, Irina Zhluktova, Anastasiya Ponosova, Daniil Trefilov, Poompong Chaiwongkhot, Anqi Huang, Vladimir Kamynin, and Vadim Makarov

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Abstract

Quantum key distribution (QKD) systems provide quantum-safe key exchange. Therefore, complete security analysis of implementations of QKD protocols is in the focus of interest of a worldwide information-security community. For today, a number of QKD loopholes are closed by countermeasures, which are also considered in emerging QKD security evaluation and certification [1–3]. However, new threats to practical QKD implementations are still found, such as the laser-damage attack, which is a powerful hacking strategy. In investigations, CW laser radiation is most often used, but in contrast to it, the interaction of pulsed laser radiation with optical materials may lead to a wide range of effects, like nonlinear effects, dielectric breakdown, etc.

© 2023 IEEE

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