En errol mar sok-sok eve olvastam, amikor valami ceg eloszor kijott mukodo implementacioval. Azota mar tobben is, a wikipedia szerint 3 ceg is gyart ilyet, es sokan masok fejlesztik:
http://en.wikipedia.org/wiki/Quantum_cryptography
"There are currently three companies offering commercial quantum cryptography systems; id Quantique (Geneva), MagiQ Technologies (New York) and SmartQuantum (France). Several other companies also have active research programmes, including Toshiba, HP, IBM, Mitsubishi, NEC and NTT (See External links for direct research links)."
http://www.idquantique.com/products/cerberis.htm
http://www.smartquantum.com/-Quantum-Security-.html
szoval ez csak egy n+1. fejlesztes, vagy valamelyik mar meglevo demozasa?
A'rpi