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Noise properties in the ideal Kirchhoff-Law-Johnson-Noise secure communication system
Zoltan Gingl1, Robert Mingesz1
1Department of Technical Informatics, University of Szeged, Szeged, Hungary.
Abstract:
In this paper we determine the noise properties needed for unconditional security for the ideal Kirchhoff-Law-Johnson-Noise (KLJN) secure key distribution system using simple statistical analysis. It has already been shown using physical laws that resistors and Johnson-like noise sources provide unconditional security. However real implementations use artificial noise generators, therefore it is a question if other kind of noise sources and resistor values could be used as well. We answer this question and in the same time we provide a theoretical basis to analyze real systems as well.
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