Quantum Key Distribution (QKD) uses the properties of quantum mechanics to let two parties exchange encryption keys with a mathematically provable guarantee against eavesdropping. Below is a curated set of definitions, research papers, standards discussions, and vendor perspectives to help you get up to speed on QKD — from the BB84 protocol to satellite-based key exchange.
QKD Articles, Research & Perspectives
Quantum Key Distribution Resource List
- What Is Quantum Key Distribution (QKD)?
TechTarget's definition of QKD, how it works, and its benefits over classical key exchange.
- Should QKD Be Used for Secure Communications?
ANSSI's technical position paper weighing QKD's guarantees against its deployment constraints and alternatives.
- Scheduling of Space-to-Ground QKD
A research article on scheduling strategies for satellite-to-ground quantum key exchange.
- QKD In-Field Implementations
A European Commission Joint Research Centre review of real-world QKD deployments, by Travagnin and Lewis.
- A Free Course on QKD Protocols
TU Delft OpenCourseWare's module covering BB84, entanglement-based protocols, and security proofs.
- QuTech Research on QKD
QuTech's ongoing research into quantum key distribution and the broader quantum internet.
- Attacking QKD via Light Injection
A PLOS ONE paper on side-channel attacks against QKD systems through ventilation openings.
- Progress in Satellite Quantum Key Distribution
A research paper by Bedington, Arrazola & Ling on the state of satellite-based QKD.
- QKD with Flawed and Leaky Sources
Pereira, Curty & Tamaki examine how imperfect hardware sources affect QKD security.
- Learn QKD with Qiskit
A hands-on Qiskit textbook chapter simulating QKD with and without an eavesdropper.
- Why Is Quantum Key Distribution So Secure?
A Physics World video interview on the principles that make QKD provably secure.
- Significance, Benefits and Loopholes of QKD
A general-knowledge primer on QKD's promise and its practical limitations.
- New Approach Takes QKD Further
A record-breaking 170 km measurement-device-independent QKD demonstration, reported by OSA.
- To QKD or Not to QKD
John Prisco's Forbes column on what quantum key distribution means for business security.
- QKD with Correlated Sources
A Science Advances paper exploring QKD security when the photon source is imperfectly random.
- The Case for Quantum Key Distribution
Stebila, Mosca & Lütkenhaus argue for QKD's role in future cryptographic infrastructure.
- Free-Space-Optical QKD: Challenges and Trends
An IntechOpen chapter on the engineering challenges of line-of-sight optical QKD systems.
- Efficient High-Dimensional QKD with Hybrid Encoding
An MDPI Entropy journal paper on boosting QKD key rates through high-dimensional encoding.
- Toshiba QKD Products and Use Cases
Toshiba's commercial quantum key distribution offering and real-world deployment examples.