Low Cost and Compact Quantum Cryptography
arXiv:quant-ph/0608213 · doi:10.1088/1367-2630/8/10/249
Abstract
We present the design of a novel free-space quantum cryptography system, complete with purpose-built software, that can operate in daylight conditions. The transmitter and receiver modules are built using inexpensive off-the-shelf components. Both modules are compact allowing the generation of renewed shared secrets on demand over a short range of a few metres. An analysis of the software is shown as well as results of error rates and therefore shared secret yields at varying background light levels. As the system is designed to eventually work in short-range consumer applications, we also present a use scenario where the consumer can regularly 'top up' a store of secrets for use in a variety of one-time-pad and authentication protocols.
18 pages, 9 figures, to be published in New Journal of Physics
References in corpus (10)
- Simple Proof of Security of the BB84 Quantum Key Distribution Protocol
- Security against individual attacks for realistic quantum key distribution
- Quantum key distribution over 122 km of standard telecom fiber
- Practical free-space quantum key distribution over 10 km in daylight and at night
- Practical free-space quantum key distribution over 1 km
- Estimates for practical quantum cryptography
- Fast, efficient error reconciliation for quantum cryptography
- Quantum key distribution with 1.25 Gbps clock synchronization
- Experimental open air quantum key distribution with a single photon source
- Quantum key distribution system clocked at 2 GHz
Cited by in corpus (27)
- Secure quantum key distribution with realistic devices
- Counterfactual Quantum Cryptography
- Controlling passively-quenched single photon detectors by bright light
- Laser damage helps the eavesdropper in quantum cryptography
- Outline of the SECOQC Quantum-Key-Distribution Network in Vienna
- Unidimensional continuous-variable quantum key distribution
- Efficient reconciliation protocol for discrete-variable quantum key distribution
- A high bandwidth quantum repeater
- An Experimental Implementation of Oblivious Transfer in the Noisy Storage Model
- Demonstration of Free-space Reference Frame Independent Quantum Key Distribution
- Implementation of two-party protocols in the noisy-storage model
- Entanglement is not a critical resource for quantum metrology
- Resource-effective Quantum Key Distribution: a field-trial in Padua city center
- Wireless Quantum Key Distribution in Indoor Environments
- Quantum Key Distribution with a Hand-held Sender Unit
- Quantum Key Distribution and Communication using a Two-way Quantum Channel
- Modular quantum key distribution setup for research and development applications
- Wavelength Assignment in Quantum Access Networks with Hybrid Wireless-Fiber Links
- Security bounds for decoy-state QKD with arbitrary photon-number statistics
- Quantum-Classical Access Networks with Embedded Optical Wireless Links
- Practical quantum tokens without quantum memories and experimental tests
- Perfect tight quantum teleportation without a shared reference frame
- Large Spin Entangled Current from a Passive Device
- Orbital Angular Momentum (OAM) Vertical-Cavity Surface-Emitting Lasers
- Deployment-ready quantum key distribution over a classical network infrastructure in Padua
- Quantum teleportation with infinite reference frame uncertainty and without prior alignment
- Motion-Compensated Handheld Quantum Key Distribution System