Security of quantum key distribution protocols using two-way classical communication or weak coherent pulses

Abstract

We apply the techniques introduced in [Kraus et. al., Phys. Rev. Lett. 95, 080501, 2005] to prove security of quantum key distribution (QKD) schemes using two-way classical post-processing as well as QKD schemes based on weak coherent pulses instead of single-photon pulses. As a result, we obtain improved bounds on the secret-key rate of these schemes.

References in corpus (2)

• Decoy state quantum key distribution with two-way classical post-processing
• Postponement of dark-count effects in practical quantum key-distribution by two-way post-processing

Cited by in corpus (27)

• The Security of Practical Quantum Key Distribution
• Quantum Conference Key Agreement: A Review
• Finite-key analysis for practical implementations of quantum key distribution
• Improved results for sending-or-not-sending twin-field quantun key distribution: breaking the absolute limit of repeaterless key rate
• Quantum key distribution overcoming extreme noise: simultaneous subspace coding using high-dimensional entanglement
• Squeezed-state quantum key distribution upon imperfect reconciliation
• A security proof of continuous-variable QKD using three coherent states
• Security of distributed-phase-reference quantum key distribution
• Key rate of quantum key distribution with hashed two-way classical communication
• Zigzag approach to higher key rate of sending-or-not-sending twin field quantum key distribution with finite key effects
• Composable security for practical quantum key distribution with two way classical communication
• Detector decoy quantum key distribution
• Key rates for quantum key distribution protocols with asymmetric noise
• All-photonic GKP-qubit repeater using analog-information-assisted multiplexed entanglement ranking
• Performance of two decoy-state quantum cryptography protocols in earth-satellite links
• Effects of depolarizing quantum channels on BB84 and SARG04 quantum cryptography protocols
• Security Proof Against Collective Attacks for an Experimentally Feasible Semiquantum Key Distribution Protocol
• Symmetric extension of bipartite quantum states and its use in quantum key distribution with two-way postprocessing
• Improving the performance of twin-field quantum key distribution with advantage distillation technology
• Multi-Photon Quantum Key Distribution Based on Double-Lock Encryption
• Secret key rates for coherent attacks
• Measurement-Protected Quantum Key Distribution
• State-Independent Quantum Key Distribution with Two-Way Classical Communication
• Exploiting Faraday Rotation to Jam Quantum Key Distribution via Polarized Photons
• Secret key distillation from shielded two-qubit states
• Security and entanglement in differential-phase-shift quantum key distribution
• The Probabilistic Model of Keys Generation of QKD Systems