Trojan-horse attacks on quantum key distribution with classical Bob

Trojan-horse attacks on quantum key distribution with classical Bob Recently, Boyer et al. (Phys Rev Lett 99:140501, 2007) introduced a conceptually novel semi-quantum key distribution scheme (BKM07). Tan et al. (Phys Rev Lett 102:098901, 2009) showed that classical Bob is unable to detect Eve’s eavesdropping by giving a special implementation of BKM07 protocol. In the reply, Boyer et al. (Phys Rev Lett 102:098902, 2009) gave a solution against the eavesdropping, i.e., Bob may place a filter that allows only photons with approximately specific frequency to pass just at the expected time $${\sim }t$$ ∼ t . However, their improvement contradicts the descriptions about “classical.” If the assumption of “classical” is not considered, we give a delay-photon Trojan-horse attack on BKM07 protocol and its improvement and further present a possible improvement. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Trojan-horse attacks on quantum key distribution with classical Bob

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Publisher
Springer US
Copyright
Copyright © 2014 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-014-0872-1
Publisher site
See Article on Publisher Site

References

  • Quantum key distribution with classical Bob
    Boyer, M; Kenigsberg, D; Mor, T
  • Eavesdropping on the two-way quantum communication protocols with invisible photons
    Cai, QY

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