Continuous-variable quantum cryptography is secure against non-gaussian attacks

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dc.creatorGrosshans, Frederic
dc.creatorCerf, Nicolas J.
dc.date2003-11-03
dc.date.accessioned2026-07-07T06:08:13Z
dc.date.available2026-07-07T06:08:13Z
dc.descriptionA general study of arbitrary finite-size coherent attacks against continuous-variable quantum cryptographic schemes is presented. It is shown that, if the size of the blocks that can be coherently attacked by an eavesdropper is fixed and much smaller than the key size, then the optimal attack for a given signal-to-noise ratio in the transmission line is an individual gaussian attack. Consequently, non-gaussian coherent attacks do not need to be considered in the security analysis of such quantum cryptosystems.
dc.description4 pages RevTex, 1 encapsulated Postscript figure
dc.identifierhttps://arxiv.org/abs/quant-ph/0311006
dc.identifierhttp://arxiv.org/abs/quant-ph/0311006
dc.identifierPhys. Rev. Lett. 92, 047905 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.047905
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91554
dc.subjectQuantum Physics
dc.titleContinuous-variable quantum cryptography is secure against non-gaussian attacks
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