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Security of continuous-variable quantum key distribution against general attacks

Abstract : We prove the security of Gaussian continuous-variable quantum key distribution with coherent states against arbitrary attacks in the finite-size regime. In contrast to previously known proofs of principle (based on the de Finetti theorem), our result is applicable in the practically relevant finite-size regime. This is achieved using a novel proof approach, which exploits phase-space symmetries of the protocols as well as the postselection technique introduced by Christandl, Koenig and Renner (Phys. Rev. Lett. 102, 020504 (2009)).
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Conference papers
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https://hal.inria.fr/hal-00926300
Contributor : Anthony Leverrier <>
Submitted on : Thursday, January 9, 2014 - 1:52:58 PM
Last modification on : Tuesday, December 24, 2019 - 3:26:02 PM

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  • HAL Id : hal-00926300, version 1

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Anthony Leverrier. Security of continuous-variable quantum key distribution against general attacks. APS March Meeting 2013, Mar 2013, Baltimore, United States. ⟨hal-00926300⟩

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