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Objective of this paper is the study of Quantum Key Distribution (QKD) protocols based on classical error-correcting codes. The Quantum Key Distribution (QKD) systems and related protocols, in particular conditions, can use the classic channel coding techniques, instead of quantum error-correcting codes, both for correcting errors that occurred during the exchange of a cryptographic key between two...
Quantum cryptography, or more specifically quantum key distribution (QKD), is the first offspring of quantum information that has reached the stage of real-world application. Its security is based on the fact that a possible spy (Eve, the eavesdropper) cannot obtain information about the bits that Alice sends to Bob, without introducing perturbations. Therefore authorized partners can detect the spy...
This paper provides an analysis of the performance of different passive optical network (PON) topologies for the distribution of multiuser quantum keys using subcarrier multiplexing and the Bennet-Brassard (BB84) protocol. PON topologies are evaluated in terms of the achievable quantum bit error rate (QBER) and the useful key rate. Results show that wavelength routed (WR) networks outperform broadcast...
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