Ref: http://www.tipmagazine.com/tip/INPHFA/vol-10/iss-6/p22.html
Quantum key distribution
Data carrying photons may be transmitted by laser and detected in such
a way that any interference will be noted
Computing's exponential increase in power requires setting the bar
always higher to secure electronicdata transmissions from would-be
hackers. The ideal solution would transmit data in quantum bits, but
truly quantum information processing may lie decades away. Therefore,
several companies have focused on bringing one aspect of quantum
communications to market--quantum key distribution (QKD), used
to exchange secret keys that protect data during transmission. Two
companies, MagiQ Technologies (New York, NY) and ID Quantique (Geneva,
Switzerland), have released commercial QKD systems, and several others
plan to enter the marketplace within two years.
See: http://www.tipmagazine.com/tip/INPHFA/vol-10/iss-6/p22.html
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