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Quantum Cryptography Security

CV-MDI-QKD: One-mode Gaussian attacks are not enough

arXiv
Authors: Carlo Ottaviani, Gaetana Spedalieri, Samuel L. Braunstein, Stefano Pirandola

Year

2015

Paper ID

27249

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

Abstract

The security proof of continuous variable (CV) measurement device independent (MDI) quantum key distribution (QKD) cannot be reduced to the analysis of one-mode Gaussian attacks (in particular, independent entangling-cloner attacks). To stress this point, the present note provides a very simple (almost trivial) argument, showing that there are an infinite number of two-mode Gaussian attacks which cannot be reduced to or simulated by one-mode Gaussian attacks. This result further confirms that the security analysis of CV-MDI-QKD must involve a careful minimization over two-mode attacks as originally performed in [S. Pirandola et al., Nature Photon. 9, 397-402 (2015)].

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  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
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  • The security proof of continuous variable (CV) measurement device independent (MDI) quantum key distribution (QKD) cannot be reduced to the analysis of one-mode Gaussian...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1509.04144 [2] arXiv https://arxiv.org/abs/1509.04144 [3] Publisher https://arxiv.org/abs/1509.04144

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