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21 November 2017 Quantum cryptography to satellites for global secure key distribution
John G. Rarity, Philip M. Gorman, Paul Knight, Kotska Wallace, Paul R. Tapster
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Proceedings Volume 10569, International Conference on Space Optics — ICSO 2000; 105690W (2017) https://doi.org/10.1117/12.2307891
Event: International Conference on Space Optics 2000, 2000, Toulouse Labège, France
Abstract
We have designed and built a free space secure key exchange system using weak laser pulses with polarisation modulation by acousto-optic switching. We have used this system to exchange keys over a 1.2km ground range with absolute security. Building from this initial result we analyse the feasibility of exchanging keys to a low earth orbit satellite.
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John G. Rarity, Philip M. Gorman, Paul Knight, Kotska Wallace, and Paul R. Tapster "Quantum cryptography to satellites for global secure key distribution", Proc. SPIE 10569, International Conference on Space Optics — ICSO 2000, 105690W (21 November 2017); https://doi.org/10.1117/12.2307891
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KEYWORDS
Satellites
Polarization
Quantum cryptography
Receivers
Sensors
Beam splitters
Computing systems
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