Continuous-variable quantum key distribution: security analysis with trusted hardware noise against general attacks

In this paper, using the full security framework for continuous-variable quantum key distribution (CV-QKD), we provide a composable security proof for the CV-QKD system in a realistic implementation. We take into account equipment losses and contributions from various components of excess noise and...

Full description

Saved in:
Bibliographic Details
Published inNanosystems : Physics, Chemistry, Mathematics Vol. 13; no. 4; pp. 372 - 391
Main Authors Goncharov, R.K., Kiselev, A.D., Samsonov, E.O., Egorov, V.I.
Format Journal Article
LanguageEnglish
Published St. Petersburg St. Petersburg National Research University of Information Technologies, Mechanics and Optics 31.08.2022
Subjects
Continuity (mathematics)
Hardware
Lasers
Protocol
Quantum cryptography
Security
Online AccessGet full text

Cover

More Information
Summary:In this paper, using the full security framework for continuous-variable quantum key distribution (CV-QKD), we provide a composable security proof for the CV-QKD system in a realistic implementation. We take into account equipment losses and contributions from various components of excess noise and evaluate performance against collective and coherent attacks assuming trusted hardware noise. The calculation showed that the system remains operable at channel losses up to 10.2 dB in the presence of collective attacks and up to 7.5 dB in the presence of coherent ones.
ISSN:2220-8054
2305-7971
DOI:10.17586/2220-8054-2022-13-4-372-391