Totally secure classical networks with multipoint telecloning (teleportation) of classical bits through loops with Johnson-like noise

Details Totally secure classical networks with multipoint telecloning (teleportation) of classical bits through loops with Johnson-like noise Totally secure classical networks with multipoint telecloning (teleportation) of classical bits through loops with Johnson-like noise

2006-03-06

arxiv.org/abs/physics/0603041v7

Fluctuation and Noise Letters 6 (2006) C9-C21.

Physics

General Physics

Quantum-based network application added. 13 pages

Scientific paper

10.1142/S021947750600332X

First, we show a new inexpensive defense against intruders and the man-in-the-middle attack in the Kirchhoff's-loop-Johnson-like-noise (KLJN) cipher. Then instead of point-to-point communication, we propose a high efficiency, secure network. The (in the idealistic case totally secure) classical network is based on an improved version of the KLJN cipher. The network consists of two parallel networks: i) a chain-like network of securely communicating, electrically isolated Kirchhoff-loops with Johnson-like noise and driven by a specific switching process of the resistances; ii) and a regular non-secure data network with a Coordinator-server. If the classical network is fast enough, the chain-like network of N communicators can generate and share an N bit long secret key within a single clock period of the ciphers and that implies a significant speed-up compared to the point-to-point key exchanges used by quantum communication or RSA-like key exchange methods. This is a teleportation-type multiple telecloning of the classical information bit because the information transfer can take place without the actual presence of the information bit at the intermediate points of the network. With similar quantum schemes the telecloning of classical bits via quantum communicator networks without telecloning the quantum states is also possible.

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