, The Register 2005-04-28
Quantum cryptography - long the stuff of cyberpunk novels and hi-tech spy stories - is leaving the laboratory and making its way into commercial markets. A briefing session at the UK's Department of Trade and Industry on Wednesday featured demonstrations of working quantum key exchange systems by QinetiQ, Toshiba Cambridge and US start-up MagiQ.
rhale
port. Conventional Highly Encrypted Data
transmitted in VPN tunnels may be more
cost effective at this point (and has been exhaustively validated).
Another critical metric (besides speed) is
distance. Shorter distances require more repeaters (rege...
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