Security of subcarrier wave quantum key distribution against the collective beam-splitting attack

Abstract

We consider a subcarrier wave quantum key distribution (QKD) system, where the quantum en- coding is carried by weak sidebands generated to a coherent optical beam by means of an electrooptic phase modulation. We study the security of two protocols, B92 and BB84, against one of the most powerful attacks on the systems of this class: the collective beam splitting attack. We show that a subcarrier wave QKD system with realistic parameters is capable of distributing a cryptographic key over large distances. We show also that a modification of the BB84 protocol, with discrimina- tion of only one state in each basis, performs not worse than the original BB84 protocol for this class of QKD systems, which brings a significant simplification to the development of cryprographic networks on the basis of considered technique.

References in corpus (16)

• Quantum Cryptography
• The Security of Practical Quantum Key Distribution
• Simple Proof of Security of the BB84 Quantum Key Distribution Protocol
• Decoy State Quantum Key Distribution
• Measurement-device-independent quantum key distribution
• Distillation of secret key and entanglement from quantum states
• Optimal eavesdropping in quantum cryptography with six states
• Practical challenges in quantum key distribution
• Asymmetric quantum cloning machines in any dimension
• Unconditional security of coherent-state quantum key distribution with strong phase-reference pulse
• Unconditional security of the Bennett 1992 quantum key-distribution scheme with strong reference pulse
• Quantum Model for Electro-Optical Phase Modulation
• Algebraic approach to electro-optic modulation of light: Exactly solvable multimode quantum model
• Afterpulsing model based on the quasi-continuous distribution of deep levels in single-photon avalanche diodes
• Optimal dimensionality for quantum cryptography
• Asymmetric universal entangling machine

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