Best-Kept Secrets: Quantum cryptography has marched from theory to laboratory to real products
January 20, 2005 | Source: Scientific American
Quantum-cryptographic systems are available from two small companies, and more products are on the way, representing the first major commercial implementation for quantum information science.
The products on the market can send keys over individual optical-fiber links for multiple tens of kilometers, with a product cost of $70,000 to $100,000.