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Security of Distributed-Phase-Reference Quantum Key Distribution

Moroder, Tobias
Curty, Marcos
Thinh, Le Phuc
Published in Physical Review Letters. 2012, vol. 109, no. 26
Abstract Distributed-phase-reference quantum key distribution stands out for its easy implementation with present day technology. For many years, a full security proof of these schemes in a realistic setting has been elusive. We solve this long-standing problem and present a generic method to prove the security of such protocols against general attacks. To illustrate our result, we provide lower bounds on the key generation rate of a variant of the coherent-one-way quantum key distribution protocol. In contrast to standard predictions, it appears to scale quadratically with the system transmittance.
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MORODER, Tobias et al. Security of Distributed-Phase-Reference Quantum Key Distribution. In: Physical Review Letters, 2012, vol. 109, n° 26. https://archive-ouverte.unige.ch/unige:36533

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Deposited on : 2014-05-12

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