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Quantum Cryptography Security

Creation of backdoors in quantum communications via laser damage

arXiv
Authors: Vadim Makarov, Jean-Philippe Bourgoin, Poompong Chaiwongkhot, Mathieu Gagné, Thomas Jennewein, Sarah Kaiser, Raman Kashyap, Matthieu Legré, Carter Minshull, Shihan Sajeed

Year

2015

Paper ID

26759

Status

Preprint

Abstract Read

~2 min

Abstract Words

86

Citations

N/A

Abstract

Practical quantum communication (QC) protocols are assumed to be secure provided implemented devices are properly characterized and all known side channels are closed. We show that this is not always true. We demonstrate a laser-damage attack capable of modifying device behaviour on-demand. We test it on two practical QC systems for key distribution and coin-tossing, and show that newly created deviations lead to side channels. This reveals that laser damage is a potential security risk to existing QC systems, and necessitates their testing to guarantee security.

Why This Paper Matters

  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
  • It adds a 2015 reference point for readers tracking recent quantum research.
  • Practical quantum communication (QC) protocols are assumed to be secure provided implemented devices are properly characterized and all known side channels are closed.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1510.03148 [2] arXiv https://arxiv.org/abs/1510.03148 [3] Publisher https://arxiv.org/abs/1510.03148

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