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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2015, Volume 101, Issue 8, Pages 637–643
DOI: https://doi.org/10.7868/S0370274X15080135 (Mi jetpl4616) 		 
This article is cited in 7 scientific papers (total in 7 papers)

QUANTUM INFORMATION SCIENCE

On the security of fiber optic quantum cryptography systems without the control of the intensity of quasi-single-photon coherent states

S. N. Molotkovabc

a Academy of Cryptography of the Russian Federation, Moscow, 121552, Russia
b Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia
c Faculty of Computational Mathematics and Cybernetics, Moscow State University, Moscow, 119991, Russia
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DOI: https://doi.org/10.7868/S0370274X15080135
Abstract: Internal losses in systems of quantum cryptography can be used at attacks by an eavesdropper. As a result, the security of keys cannot be ensured for a number of protocols. This problem can be solved by using geometrically uniform coherent states with a larger number of bases. The security of keys at the number of bases $N_b/2=4$ and the number of states $N_b=8$ can be guaranteed even without the control of the intensity of input states.
Received: 09.02.2015
Revised: 10.03.2015
English version:
Journal of Experimental and Theoretical Physics Letters, 2015, Volume 101, Issue 8, Pages 579–585
DOI: https://doi.org/10.1134/S002136401508010X
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: S. N. Molotkov, “On the security of fiber optic quantum cryptography systems without the control of the intensity of quasi-single-photon coherent states”, Pis'ma v Zh. Èksper. Teoret. Fiz., 101:8 (2015), 637–643; JETP Letters, 101:8 (2015), 579–585
Citation in format AMSBIB
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    • This publication is cited in the following 7 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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