Information Networks Secured by the Laws of Physics

In this paper, the authors survey the state of the art of the secure key exchange method that is secured by the laws of classical statistical physics, and involves the Kirchhoff's law and the generalized Johnson noise equation, too. They discuss the major characteristics and advantages of these schemes especially in comparison with quantum encryption, and analyze some of the technical challenges of its implementation, too. Finally, they outline some ideas about how to use already existing and currently used wire lines, such as power lines, phone lines, internet lines to implement unconditionally secure information networks.

Provided by: National Institute of Information and Communications Technology Topic: Security Date Added: Feb 2012 Format: PDF

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