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Pis'ma v Zh. Èksper. Teoret. Fiz.:

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Pis'ma v Zh. Èksper. Teoret. Fiz., 2012, Volume 96, Issue 5, Pages 374–380 (Mi jetpl3226)  

This article is cited in 10 scientific papers (total in 10 papers)


On the resistance of relativistic quantum cryptography in open space at finite resources

S. N. Molotkovabc

a Academy of Criptography of Russia
b Institute of Solid State Physics, Russian Academy of Sciences
c M. V. Lomonosov Moscow State University, Faculty of Computational Mathematics and Cybernetics

Abstract: The security of keys for the basic nonrelativistic BB84 protocol has been examined for more than 15 years. A simple proof of security for the case of a single-photon source of quantum states and finite sequences has been only recently obtained using entropy uncertainty relations. However, the existing sources of states are not strictly single-photon. Since sources are not single-photon and losses in a quantum channel – open space – are not a priori known and vary, nonrelativistic quantum cryptographic systems in open space cannot guarantee the unconditional security of keys. Recently proposed relativistic quantum cryptography removes fundamental constraints associated with non-single-photon sources and losses in open space. The resistance of a fundamentally new family of protocols for relativistic quantum key distribution through open space has been analyzed for the real situation with finite lengths of transmitted sequences of quantum states. This system is stable with real sources of non-single-photon states (weakened laser radiation) and arbitrary losses in open space.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2012, 96:5, 342–348

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Document Type: Article
Received: 01.06.2012
Revised: 10.07.2012

Citation: S. N. Molotkov, “On the resistance of relativistic quantum cryptography in open space at finite resources”, Pis'ma v Zh. Èksper. Teoret. Fiz., 96:5 (2012), 374–380; JETP Letters, 96:5 (2012), 342–348

Citation in format AMSBIB
\by S.~N.~Molotkov
\paper On the resistance of relativistic quantum cryptography in open space at finite resources
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2012
\vol 96
\issue 5
\pages 374--380
\jour JETP Letters
\yr 2012
\vol 96
\issue 5
\pages 342--348

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    This publication is cited in the following articles:
    1. Radchenko I.V., Kravtsov K.S., Kulik S.P., Molotkov S.N., “Relativistic Quantum Cryptography”, Laser Phys. Lett., 11:6 (2014), 065203  crossref  adsnasa  isi  elib  scopus
    2. Kronberg D.A., Molotkov S.N., “On a Beam Splitter Attack and Soft Filtering of Coherent States in Differential Phase Shift Quantum Cryptography”, J. Exp. Theor. Phys., 118:1 (2014), 1–10  crossref  adsnasa  isi  elib  scopus
    3. D. A. Kronberg, S. N. Molotkov, “Duality of quantum communication channels and a collective intercept-resend attack on quantum key distribution with differential phase shift”, JETP Letters, 100:4 (2014), 279–284  mathnet  crossref  crossref  isi  elib  elib
    4. S. N. Molotkov, “On the stability of fiber-optic quantum cryptography at arbitrary losses in a communication channel: Exclusion of unambiguous measurements”, JETP Letters, 100:6 (2014), 413–419  mathnet  crossref  crossref  isi  elib  elib
    5. S. N. Molotkov, T. A. Potapova, “Wavefunctions of a prolate spheroid and multiplexing in relativistic quantum cryptography on orthogonal states”, JETP Letters, 100:9 (2014), 596–603  mathnet  crossref  crossref  isi  elib  elib
    6. S. N. Molotkov, “Analog of differential-phase quantum cryptography on coherent states with provable cryptographic security”, JETP Letters, 102:6 (2015), 396–403  mathnet  crossref  crossref  isi  elib  elib
    7. S. N. Molotkov, “What is a quantum cryptography protocol that ensures the maximum distance in the case of a strictly single-photon source?”, JETP Letters, 102:7 (2015), 473–477  mathnet  crossref  crossref  isi  elib
    8. Molotkov S.N. Potapova T.A., “Security of Quantum Key Distribution With a Laser Reference Coherent State, Resistant To Loss in the Communication Channel”, Laser Phys. Lett., 12:6 (2015), 065201  crossref  adsnasa  isi  elib  scopus
    9. Molotkov S.N. Potapova T.A., “Faint Laser Pulses Versus a Single-Photon Source in Free Space Quantum Cryptography”, Laser Phys. Lett., 13:3 (2016), 035201  crossref  adsnasa  isi  elib  scopus
    10. Kravtsov K.S., Radchenko I.V., Kulik S.P., Molotkov S.N., “Relativistic Quantum Key Distribution System With One-Way Quantum Communication”, Sci Rep, 8 (2018), 6102  crossref  isi  scopus
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