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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
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
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
Linking options:
https://www.mathnet.ru/eng/jetpl4616 https://www.mathnet.ru/eng/jetpl/v101/i8/p637
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Abstract page: | 282 | Full-text PDF : | 114 | References: | 42 | First page: | 10 |
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