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this tech, or an algo based on it? Quantum cryptographic data network created http://www.dailyindia.com/show/55384.php/Quantum-cryptographic-data-network-created EVANSTON, Ill., Aug. 28 (UPI) -- U.S. scientists have demonstrated, for the first time, a quantum cryptographic data network. Researchers from Northwestern University and BBN Technologies Inc., a Cambridge, Mass., research and development company, said they integrated quantum noise protected data encryption, or QDE, with quantum key distribution to develop a complete data communication system with extraordinary resilience to eavesdropping. "The volume and type of sensitive information being transmitted over data networks continues to grow at a remarkable pace," said Prem Kumar, professor of electrical engineering and computer science at Northwestern and co-principal investigator on the project. "New cryptographic methods are needed to continue ensuring that the privacy and safety of each user's information is secure." The QDE method, called AlphaEta, makes use of the inherent and irreducible quantum noise in laser light to enhance the security of the system and makes eavesdropping much more difficult. The scientists said unlike most other physical encryption methods, AlphaEta maintains performance on par with traditional optical communications links and is compatible with standard fiber optical networks. Henry Yeh, director of programs at BBN, said the newly developed system represents the state-of-the-art in ultra-secure high-speed optical communications. Copyright 2006 by United Press International -----END TYPE III ANONYMOUS MESSAGE-----
