Ground to satellite secure key exchange using quantum cryptography
John RarityOptronics Department, QinetiQ, Malvern WR14 3PS, UKP. R. TapsterOptronics Department, QinetiQ, Malvern WR14 3PS, UKP.M. GormanOptronics Department, QinetiQ, Malvern WR14 3PS, UKPaul KnightSpace Department, QinetiQ, Farnborough GU14 OLX, UK
2002en
ABI
Abstract
We examine the possibility of secure key exchange between a ground station and a low earth orbit satellite using the technique of quantum cryptography. The study suggests there are no technical obstacles to building a system that could exchange keys at kilobaud rates between a metre diameter telescope on the ground and a satellite with a 10 cm diameter lightweight telescope.
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Cited by 20 references