Secure quantum key distribution with realistic devices
arXiv:1903.09051 · doi:10.1103/RevModPhys.92.025002
Abstract
In principle, quantum key distribution (QKD) offers information-theoretic security based on the laws of physics. In practice, however, the imperfections of realistic devices might introduce deviations from the idealized models used in security analyses. Can quantum code-breakers successfully hack real systems by exploiting the side channels? Can quantum code-makers design innovative counter-measures to foil quantum code-breakers? This article reviews theoretical and experimental progress in the practical security aspects of quantum code-making and quantum code-breaking. After numerous attempts, researchers now thoroughly understand and are able to manage the practical imperfections. Recent advances, such as the measurement-device-independent protocol, have closed the critical side channels in the physical implementations, paving the way for secure QKD with realistic devices.
to appear in Rev. Mod. Phys
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- Enhancing the Charging Performance of Many-Body Quantum Batteries through Landau-Zener Driving
- Detector noise in continuous-variable quantum key distribution
- Joint Encryption and Error Correction for Secure Quantum Communication
- Resource-Efficient Real-Time Polarization Compensation for MDI-QKD with Rejected Data
- Secure Quantum Key Distribution Using a Room-Temperature Quantum Emitter
- Quantum-secure multiparty deep learning
- Hybrid satellite-fiber quantum network
- Mitigating the source-side channel vulnerability by characterization of photon statistics
- Countering detector manipulation attacks in quantum communication through detector self-testing
- Reference-Beam Attacks against Twin-Field Quantum Key Distribution using Optical Injection Locking
- Full time-dependent counting statistics of highly entangled biphoton states
- Robust one-sided self-testing of two-qubit states via quantum steering
- Error-free interconversion of nonlocal boxes
- Quantum Random Number Generation with Partial Source Assumptions
- Advantage of the key relay protocol over secure network coding
- Practical quantum access network over a 10 Gbit/s Ethernet passive optical network
- Decoy-state quantum key distribution over 227 km with a frequency-converted telecom single-photon source
- A Survey of OAM-Encoded High-Dimensional Quantum Key Distribution: Foundations, Experiments, and Recent Trends
- Nonreciprocal Photon Blockade in an Asymmetric Cavity
- Realistic Threat Models for Fiber and Free-Space Continuous-Variable Quantum Key Distribution
- Long-distance device-independent quantum key distribution with standard optics tools
- Experimental Phase-Matching Quantum Cryptographic Conferencing in Symmetric and Asymmetric Fiber Channels
- Effect of noise and topologies on multi-photon quantum protocols
- Noise-reduction of multimode Gaussian Boson Sampling circuits via Unitary Averaging
- Optimal and robust error filtration for quantum information processing
- General theory of quantum fingerprinting network
- Security against collective attacks for a continuous-variable quantum key distribution protocol using homodyne detection and postselection
- Hybrid classical-quantum communication networks
- Detecting high-dimensional entanglement by randomized product projections
- Pilot-reference-free continuous-variable quantum key distribution with efficient decoy-state analysis
- Finding eigenvectors with a quantum variational algorithm
- Quantum Key Distribution with Imperfections: Recent Advances in Security Proofs
- Topologically Protecting Squeezed Light on a Photonic Chip
- Realizing downstream access network using continuous-variable quantum key distribution
- Convert laser light into single photons via interference
- Corrupted sensing quantum state tomography
- Interference between distinguishable photons
- Security analysis method for practical quantum key distribution with arbitrary encoding schemes
- Protecting entanglement witnesses with randomized measurements
- Adaptive Techniques in Practical Quantum Key Distribution
- Where are the photons in a transmission-line pulse?
- Broadband optical time-domain reflectometry for security analysis of quantum key distribution
- Capacity-Achieving Entanglement Purification Protocol for Pauli Dephasing Channel
- Phase noise-immune unconditionally secured classical key distribution using doubly coupled Mach-Zehnder interferometer
- Nondestructive discrimination of Bell states between distant parties
- SQOUT: A Risk-Based Threat Analysis Framework for Quantum Communication Systems
- Quantum advantage in a unified scenario and secure detection of resources
- Switching, Amplifying, and Chirping Diode Lasers with Current Pulses for High Bandwidth Quantum Technologies
- Quantum-Resistant Networks Using Post-Quantum Cryptography
- Toward quantum interconnects featuring nanometer-to-picometer bandwidth compression and THz-range quantum frequency conversion
- Deterministic quantum correlation in an interferometric scheme
- Quantum key distribution over a metropolitan network using an integrated photonics based prototype
- Reduced State Embedding for Error Correction in Quantum Cryptography
- Quantum Key Distribution: Bridging Theoretical Security Proofs, Practical Attacks, and Error Correction for Quantum-Augmented Networks
- Asymmetry effects in homodyne and heterodyne measurements: Positive operator-valued measures and asymptotic security of Gaussian-continuous-variable quantum key distribution
- Routing entanglement through quantum networks
- High-dimensional quantum communication with scalable photonic entanglement in time and frequency
- Enhancing Quantum Key Distribution with Entanglement Distillation and Classical Advantage Distillation
- Phase-correlation-free quantum key distribution source operating at gigahertz rates
- Coherently controlled quantum features in a coupled interferometric scheme
- The role of quantum superposition in a coupled interferometric system for macroscopic quantum feature generations
- Optimizing Epsilon Security Parameters in QKD
- Quantum information and beyond -- with quantum candies
- Integrating Entanglement Purification into All-Photonic Quantum Repeaters
- Practical Countermeasure Against Attacks Exploiting Detection Efficiency Mismatch in Quantum Key Distribution
- Security proofs for practical QKD: variations, techniques, gaps, and limitations
- Additivity and chain rules for quantum entropies via multi-index Schatten norms
- Nonorthogonal coding in spectrally-entangled photons
- Energy-time attack on detectors in quantum key distribution
- Optimizing Continuous-Wave-Pumped Entanglement-based QKD in Noisy Environments
- Long-Distance Device-Independent Conference Key Agreement
- Discrete-phase-randomized mode-pairing quantum key distribution
- Security loophole in error verification in quantum key distribution
- Quantum state transfer and maximal entanglement between distant qubits using a minimal quasicrystal pump
- Circular-beam approximation for quantum channels in a turbulent atmosphere
- Source-independent quantum key distribution without pre-sending entanglement
- Security Analysis of Mode-Pairing Quantum Key Distribution with Flexible Pairing Strategy
- Photonic quantum information with time-bins: Principles and applications