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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- Semi-device-independent quantum random number generator with a broadband squeezed state of light
- Improved composable key rates for CV-QKD
- Security of decoy-state quantum key distribution with correlated intensity fluctuations
- Experimental space-division multiplexed polarization-entanglement distribution through 12 paths of a multicore fiber
- Multiplexed quantum repeaters based on dual-species trapped-ion systems
- Experimental Quantum Byzantine Agreement on a Three-User Quantum Network with Integrated Photonics
- Security of quantum key distribution with imperfect phase randomisation
- Advantages of Asynchronous Measurement-Device-Independent Quantum Key Distribution in Intercity Networks
- Fast and reliable entanglement distribution with quantum repeaters: principles for improving protocols using reinforcement learning
- Robust Interior Point Method for Quantum Key Distribution Rate Computation
- Practical Quantum Key Distribution Secure Against Side-Channels
- Resource-efficient high-dimensional entanglement detection via symmetric projections
- Experimentally optimizing QKD rates via nonlocal dispersion compensation
- Hacking single-photon avalanche detector in quantum key distribution via pulse illumination
- Simple security proof of coherent-one-way quantum key distribution
- Zero-error attack against coherent-one-way quantum key distribution
- Shannon Perfect Secrecy in a Discrete Hilbert Space
- Preparing a commercial quantum key distribution system for certification against implementation loopholes
- Quantum key distribution rates from semidefinite programming
- Mode-pairing quantum key distribution with advantage distillation
- Applicability of Squeezed-and Coherent-State Continuous-Variable Quantum Key Distribution over Satellite Links
- The BB84 quantum key distribution using conjugate homodyne detection
- A perspective on the pathway to a scalable quantum internet using rare-earth ions
- GHz-Pulsed Source of Entangled Photons for Reconfigurable Quantum Networks
- Scalable High-Rate Twin-Field Quantum Key Distribution Networks without Constraint of Probability and Intensity
- The Cost of Improving the Precision of the Variational Quantum Eigensolver for Quantum Chemistry
- Trusted Node QKD at an Electrical Utility
- Frequency-bin entanglement-based quantum key distribution
- A fully passive transmitter for decoy-state quantum key distribution
- Experimental Side-Channel-Free Quantum Key Distribution
- Device-Independent Quantum Key Distribution Based on the Mermin-Peres Magic Square Game
- Measurement-Device-Independent Verification of a Quantum Memory
- Quantum correlation entropy
- Security of quantum key distribution with detection-efficiency mismatch in the multiphoton case
- Source-independent quantum random number generator against tailored detector blinding attacks
- Satellite Relayed Global Quantum Communication without Quantum Memory
- Spacetime effects on wavepackets of coherent light
- Experimental secure quantum key distribution in presence of polarization-dependent loss
- Privacy-preserving quantum federated learning via gradient hiding
- Achieving the ultimate end-to-end rates of lossy quantum communication networks
- Strong pulse illumination hacks self-differencing avalanche photodiode detectors in a high-speed quantum key distribution system
- Physical-layer key distribution using synchronous complex dynamics of DBR semiconductor lasers
- Recent advances in high-dimensional mode-locked quantum frequency combs
- Single-mode fiber coupling with a M-SPGD algorithm for long-range quantum communications
- Multiphoton and side-channel attacks in mistrustful quantum cryptography
- Deep-Learning-Based Radio-Frequency Side-Channel Attack on Quantum Key Distribution
- High-dimensional quantum key distribution using a multi-plane light converter
- Optimizing the Decoy-State BB84 QKD Protocol Parameters
- Integrated quantum communication network and vibration sensing in optical fibers
- Discrete-variable quantum key distribution with homodyne detection
- Continuous-variable quantum communication
- Quantum Key Distribution over 100 km underwater optical fiber assisted by a Fast-Gated Single-Photon Detector
- Few-mode-fiber technology fine-tunes losses of quantum communication systems
- Optimization of intensity-modulation/direct-detection optical key distribution under passive eavesdropping
- Optimizing state-discrimination receivers for continuous-variable quantum key distribution over a wiretap channel
- Tripartite quantum entanglement with squeezed optomechanics
- Quantum violation of local causality in urban network with hybrid photonic technologies
- Memory-assisted long-distance phase-matching quantum key distribution
- Experimental coherent-state quantum secret sharing with finite pulses
- Vacuum Beam Guide for Large-Scale Quantum Networks
- Continuous-variable quantum key distribution with noisy squeezed states
- Quantum optical synthesis in 2D time-frequency space
- Effect of source statistics on utilizing photon entanglement in quantum key distribution
- Quantified Effects of the Laser Seeding Attack in Quantum Key Distribution
- Finite-Key Analysis for Coherent One-Way Quantum Key Distribution
- Secure quantum key distribution with a subset of malicious devices
- Boosting device-independent cryptography with tripartite nonlocality
- Robust twin-field quantum key distribution through sending-or-not-sending
- Experimental quantum key distribution secure against malicious devices
- Quantum cryptography beyond key distribution: theory and experiment
- Effect of light injection on the security of practical quantum key distribution
- Simple and loss-tolerant free-space QKD using a squeezed laser
- Recent advances on quantum key distribution overcoming the linear secret key capacity bound
- Quantum key distribution over scattering channel
- Experimental study of secure quantum key distribution with source and detection imperfections
- On the design and analysis of near-term quantum network protocols using Markov decision processes
- A quantum encryption design featuring confusion, diffusion, and mode of operation
- Randomized ancillary qubit overcomes detector-control and intercept-resend hacking of quantum key distribution
- Using Cascade in Quantum Key Distribution
- Numerical simulations of atmospheric quantum channels
- Receiver-Device-Independent Quantum Key Distribution Protocols
- Vector optomechanical entanglement
- Polarization-independent single-photon switch based on a fiber-optical Sagnac interferometer for quantum communication networks
- Generating optical cat states via quantum interference of multi-path free-electron-photons interactions
- Performance analysis for OFDM-based multi-carrier continuous-variable quantum key distribution with arbitrary modulation protocol
- Rate limits in quantum networks with lossy repeaters
- Experimental Efficient Source-Independent Quantum Secret Sharing against Coherent Attacks
- Measurement device-independent quantum key distribution with passive, time-dependent source side-channels
- Analysis for satellite-based high-dimensional extended B92 and high-dimensional BB84 quantum key distribution
- Quantum Public Key Distribution using Randomized Glauber States
- Demonstration of microwave single-shot quantum key distribution
- Blind quantum machine learning with quantum bipartite correlator
- High-dimensional entanglement witnessed by correlations in arbitrary bases
- Resource-efficient fault-tolerant one-way quantum repeater with code concatenation
- Experimental Semi-quantum Key Distribution With Classical Users
- Controlled entanglement source for quantum cryptography
- Inertias of entanglement witnesses
- Device-independent quantum key distribution over 100 km with single atoms
- Genuine multipartite entanglement in a one-dimensional Bose-Hubbard model with frustrated hopping
- Automated design of quantum optical experiments for device-independent quantum key distribution
- Phase-locking an interferometer with single-photon detections
- Modelling efficient BB84 with applications for medium-range, terrestrial free-space QKD
- Secret key rate bounds for quantum key distribution with non-uniform phase randomization
- Receiver-Device-Independent Quantum Key Distribution
- Advances in Continuous Variable Measurement-Device-Independent Quantum Key Distribution
- The future of secure communications: device independence in quantum key distribution
- A MATLAB based modeling and simulation package for DPS-QKD
- Detecting the dimensionality of genuine multi-particle entanglement
- Measurement-device-independent quantum key distribution with insecure sources
- Sending-or-not-sending twin-filed quantum key distribution with discrete phase modulation
- Loss-tolerant quantum key distribution with a twist
- Polarization-selective enhancement of telecom wavelength quantum dot transitions in an elliptical bullseye resonator
- A modified practical homodyne detector model for continuous-variable quantum key distribution: detailed security analysis and improvement by the phase-sensitive amplifier
- Security framework for quantum key distribution with imperfect sources
- Robust excitation of C-band quantum dots for quantum communication
- Asynchronous measurement-device-independent quantum key distribution with hybrid source
- Quantum repeater via entangled phase modulated multimode coherent states
- Coherent Control of a Long-Lived Nuclear Memory Spin in a Germanium-Vacancy Multi-Qubit Node
- Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources
- Stream privacy amplification for quantum cryptography
- Quantum key distribution with post-processing driven by physical unclonable functions
- Experimental Measurement-Device-Independent Quantum Cryptographic Conferencing
- Integrated InP-based transmitter for Continuous-Variable Quantum Key Distribution
- Measurement-device-independent quantum-secret-sharing networks with linear Bell-state analysis
- Sending or not sending twin-field quantum key distribution with distinguishable decoy states
- The European Satellite-Based QKD System EAGLE-1
- A robust approach for time-bin encoded photonic quantum information protocols
- Proposals for ruling out the real quantum theories in an entanglement-swapping quantum network with causally independent sources
- Reducing classical communication costs in multiplexed quantum repeaters using hardware-aware quasi-local policies
- Homodyne Detection Quadrature Phase Shift Keying Continuous-Variable Quantum Key Distribution with High Excess Noise Tolerance
- Quantum key distribution with imperfectly isolated devices
- Deterministic generation of multi-qubit entangled states among distant parties using indefinite causal order
- Hybrid encoder for discrete and continuous variable QKD
- International time transfer between precise timing facilities secured with a quantum key distribution network
- Twin-field quantum key distribution with partial phase postselection
- Experimental Test of Nonlocality Limits from Relativistic Independence
- Classical-Quantum Dual Encoding for Laser Communications in Space
- Coherence and entanglement in Grover and Harrow-Hassidim-Lloyd algorithm
- Quantum communications feasibility tests over a UK-Ireland 224-km undersea link
- Quantum non-Gaussian Photon Coincidences
- Quantum key distribution with unbounded pulse correlations
- Experimental demonstration of improved reference-frame-independent quantum key distribution over 175km
- Efficient entanglement generation and detection of generalized stabilizer states
- Quantum hacking perceiving for quantum key distribution using temporal ghost imaging
- Photocounting statistics of superconducting nanowire single-photon detectors
- Genuine non-Gaussian entanglement of light and quantum coherence for an atom from noisy multiphoton spin-boson interactions
- Classical analogue of quantum superdense coding and communication advantage of a single quantum system
- Sender-controlled measurement-device-independent multiparty quantum communication
- Strengthening practical continuous-variable quantum key distribution systems against measurement angular error
- Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wavepackets
- Security of entanglement-based QKD with realistic parametric down-conversion sources
- Efficient experimental quantum fingerprinting with wavelength division multiplexing
- Explicit attacks on BB84 with distinguishable photons
- Simulating the Photon Statistics of Multimode Gaussian States by Automatic Differentiation of Generating Functions
- Schmidt number criterion via general symmetric informationally complete measurements
- Unexpected detection rate dependence of the intrinsic detection efficiency in single-photon detectors based on avalanche diodes
- Introduction to gravitational redshift of quantum photons propagating in curved spacetime
- Spatial and spectral characterization of photon pairs at telecommunication-wavelength from type-0 spontaneous parametric down-conversion
- Foiling zero-error attacks against coherent-one-way quantum key distribution
- Asynchronous measurement-device-independent quantum digital signatures
- Entropy bounds for device-independent quantum key distribution with local Bell test
- Photon-number resolution with microwave Josephson photomultipliers
- Continuous-variable quantum key distribution over 50.4 km fiber using integrated silicon photonic transmitter and receiver
- Approaching the Key Rate Limit in Continuous-Variable Quantum Key Distribution Network
- Overcoming the repeaterless bound in continuous-variable quantum communication without quantum memories
- High-dimensional Encoding in the Round-Robin Differential-Phase-Shift Protocol
- Intensity correlations in decoy-state BB84 quantum key distribution systems
- Divergence of the variance of the optical phase in gain-switched semiconductor lasers described by stochastic rate equations
- Countermeasure for negative impact of practical source in continuous-variable measurement-device-independent quantum key distribution
- Verification of Bell Nonlocality by Violating Quantum Monogamy Relations
- Photonic interface between subcarrier wave and dual rail encodings
- Quantum Key Distribution with Basis-Dependent Detection Probability
- Experimental photon addition and subtraction in multi-mode and entangled optical fields
- Implementation of space-division multiplexed entanglement-based quantum cryptography over multicore fiber
- Multiplexed quantum repeaters based on single-photon interference with mild stabilization
- Experimental Coherent One-Way Quantum Key Distribution with Simplicity and Practical Security
- Pre-detection squeezing as a resource for high-dimensional Bell-state measurements
- Experimental Authentication of Quantum Key Distribution with Post-quantum Cryptography
- Quantum and Classical Two-photon Interference of Single Photons with Ultralong Coherence Time
- Hacking coherent-one-way quantum key distribution with present-day technology
- Non-stabilizerness in quantum-enhanced metrological protocols
- Wide-spectrum security of quantum key distribution
- Generalized Numerical Framework for Improved Finite-Sized Key Rates with Rényi Entropy
- Characterising higher-order phase correlations in gain-switched laser sources with application to quantum key distribution
- High-dimensional quantum key distribution with resource-efficient detection
- Sharp finite statistics for quantum key distribution
- Simulation of satellite and optical link dynamics in a quantum repeater constellation
- Twin-field-based multi-party quantum key agreement
- Quantum key distribution rates from non-symmetric conic optimization
- Dynamical Blockade Optimizing via Particle Swarm Optimization Algorithm
- Advantage Distillation for Quantum Key Distribution
- High-Precision Frequency-Controlled Optical Phase Shifter with Acousto Optic Devices
- Phase-Matching Quantum Key Distribution without Intensity Modulation
- Biased Random Access Codes
- Mode structure reconstruction by detected and undetected light
- Classically Replaceable Operations
- Estimating the photon-number distribution of photonic channels with realistic devices and applications in photonic quantum information processing
- A practical quantum encryption protocol with varying encryption configurations
- Satellites promise global-scale quantum networks
- Linearly Multiplexed Photon Number Resolving Single-photon Detectors Array
- Loss-tolerant quantum key distribution with detection efficiency mismatch
- Nonlinear protocol for high-dimensional quantum teleportation
- A simple relation of guessing probability in quantum key distribution
- On the Optimization of Underwater Quantum Key Distribution Systems with Time-Gated SPADs
- Entanglement Model for Mode-Pairing Quantum Key Distribution
- Modeling Optical Key Distribution over a Satellite-to-Ground Link Under Weak Atmospheric Turbulence
- Analyzing the performance of CV-MDI QKD under continuous-mode scenarios
- Revealing hidden physical nonclassicality with nonnegative polynomials
- The Role of Quantum Computing in Advancing Scientific High-Performance Computing: A perspective from the ADAC Institute
- Experimental Measurement-Device-Independent Quantum Key distribution with Flawed State-Preparation over 300 km
- Simulations of distributed-phase-reference quantum key distribution protocols
- Resource analysis for quantum-aided Byzantine agreement with the four-qubit singlet state
- Fusion of atomic W-like states in cavity QED systems
- Towards efficient and secure quantum-classical communication networks
- Time-bin encoded quantum key distribution over 120 km with a telecom quantum dot source
- Source-Replacement Model for Phase-Matching Quantum Key Distribution
- Time correlations in atmospheric quantum channels
- Distributed Symmetric Key Establishment: a Scalable Quantum-Safe Key Distribution Protocol
- Universal quantum control over bosonic network
- Quantum key distribution overcoming practical correlated intensity fluctuations
- Round-robin differential phase-time-shifting protocol for quantum key distribution: theory and experiment
- Space-division multiplexed phase compensation for quantum communication: concept and field demonstration
- Fundamental limitations to key distillation from Gaussian states with Gaussian operations
- Simple and Rigorous Proof Method for the Security of Practical Quantum Key Distribution in the Single-Qubit Regime Using Mismatched Basis Measurements
- Communication with Quantum Catalysts
- Probing many-body Bell correlation depth with superconducting qubits
- Towards fully-fledged quantum and classical communication over deployed fiber with up-conversion module
- Coupled three-mode squeezed vacuum: Gaussian steering and remote generation of Wigner negativity
- Optimal single-shot discrimination of optical modes
- Deterministic generation of high-dimensional entanglement between distant atomic memories via multi-photon exchange
- Error-free interconversion of nonlocal boxes
- Countering detector manipulation attacks in quantum communication through detector self-testing
- Resource-Efficient Real-Time Polarization Compensation for MDI-QKD with Rejected Data
- Full time-dependent counting statistics of highly entangled biphoton states
- Mitigating the source-side channel vulnerability by characterization of photon statistics
- Quantum-secure multiparty deep learning
- Enhancing the Charging Performance of Many-Body Quantum Batteries through Landau-Zener Driving
- Secure Quantum Key Distribution Using a Room-Temperature Quantum Emitter
- Emulation of satellite up-link quantum communication with entangled photons
- Optical-pumping attack on a quantum key distribution laser source
- Detector noise in continuous-variable quantum key distribution
- Reference-Beam Attacks against Twin-Field Quantum Key Distribution using Optical Injection Locking
- Hybrid satellite-fiber quantum network
- Joint Encryption and Error Correction for Secure Quantum Communication
- Robust one-sided self-testing of two-qubit states via quantum steering
- Interference between distinguishable photons
- Noise-reduction of multimode Gaussian Boson Sampling circuits via Unitary Averaging
- Nonreciprocal Photon Blockade in an Asymmetric Cavity
- Corrupted sensing quantum state tomography
- Finding eigenvectors with a quantum variational algorithm
- Experimental Phase-Matching Quantum Cryptographic Conferencing in Symmetric and Asymmetric Fiber Channels
- Protecting entanglement witnesses with randomized measurements
- Pilot-reference-free continuous-variable quantum key distribution with efficient decoy-state analysis
- A Survey of OAM-Encoded High-Dimensional Quantum Key Distribution: Foundations, Experiments, and Recent Trends
- Advantage of the key relay protocol over secure network coding
- Effect of noise and topologies on multi-photon quantum protocols
- Convert laser light into single photons via interference
- Decoy-state quantum key distribution over 227 km with a frequency-converted telecom single-photon source
- Security against collective attacks for a continuous-variable quantum key distribution protocol using homodyne detection and postselection
- General theory of quantum fingerprinting network
- Quantum Key Distribution with Imperfections: Recent Advances in Security Proofs
- Practical quantum access network over a 10 Gbit/s Ethernet passive optical network
- Topologically Protecting Squeezed Light on a Photonic Chip
- Adaptive Techniques in Practical Quantum Key Distribution
- Realizing downstream access network using continuous-variable quantum key distribution
- Long-distance device-independent quantum key distribution with standard optics tools
- Detecting high-dimensional entanglement by randomized product projections
- Security analysis method for practical quantum key distribution with arbitrary encoding schemes
- Optimal and robust error filtration for quantum information processing
- Hybrid classical-quantum communication networks
- Quantum Random Number Generation with Partial Source Assumptions
- Realistic Threat Models for Fiber and Free-Space Continuous-Variable Quantum Key Distribution
- Broadband optical time-domain reflectometry for security analysis of quantum key distribution
- Security Analysis of Mode-Pairing Quantum Key Distribution with Flexible Pairing Strategy
- Quantum advantage in a unified scenario and secure detection of resources
- Nondestructive discrimination of Bell states between distant parties
- Quantum information and beyond -- with quantum candies
- Where are the photons in a transmission-line pulse?
- Nonorthogonal coding in spectrally-entangled photons
- Capacity-Achieving Entanglement Purification Protocol for Pauli Dephasing Channel
- Enhancing Quantum Key Distribution with Entanglement Distillation and Classical Advantage Distillation
- Optimizing Continuous-Wave-Pumped Entanglement-based QKD in Noisy Environments
- Security proofs for practical QKD: variations, techniques, gaps, and limitations
- Additivity and chain rules for quantum entropies via multi-index Schatten norms
- Deterministic quantum correlation in an interferometric scheme
- Coherently controlled quantum features in a coupled interferometric scheme
- Integrating Entanglement Purification into All-Photonic Quantum Repeaters
- The role of quantum superposition in a coupled interferometric system for macroscopic quantum feature generations
- Phase noise-immune unconditionally secured classical key distribution using doubly coupled Mach-Zehnder interferometer
- Switching, Amplifying, and Chirping Diode Lasers with Current Pulses for High Bandwidth Quantum Technologies
- Long-Distance Device-Independent Conference Key Agreement
- 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
- Photonic quantum information with time-bins: Principles and applications
- Routing entanglement through quantum networks
- SQOUT: A Risk-Based Threat Analysis Framework for Quantum Communication Systems
- Quantum-Resistant Networks Using Post-Quantum Cryptography
- 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
- Optimizing Epsilon Security Parameters in QKD
- Quantum key distribution over a metropolitan network using an integrated photonics based prototype
- Energy-time attack on detectors in quantum key distribution
- High-dimensional quantum communication with scalable photonic entanglement in time and frequency
- Source-independent quantum key distribution without pre-sending entanglement
- Discrete-phase-randomized mode-pairing quantum key distribution
- Practical Countermeasure Against Attacks Exploiting Detection Efficiency Mismatch in Quantum Key Distribution
- Phase-correlation-free quantum key distribution source operating at gigahertz rates
- Toward quantum interconnects featuring nanometer-to-picometer bandwidth compression and THz-range quantum frequency conversion