It has been shown recently that the use of two pairs of resistors with enhanced Johnson-noise and a Kirchhoff-loop-i.e., a Kirchhoff-Law-Johnson-Noise (KLJN) protocol-for secure key distribution leads to information theoretic security levels superior to those of a quantum key distribution, including a natural immunity against a man-in-the-middle attack. This issue is becoming particularly timely because of the recent full cracks of practical quantum communicators, as shown in numerous peer-reviewed publications. This presentation first briefly surveys the KLJN system and then discusses related, essential questions such as: what are perfect and imperfect security characteristics of key distribution, and how can these two types of securities be unconditional (or information theoretical)? Finally the presentation contains a live demonstration. © 2013 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Mingesz, R., Kish, L. B., Gingl, Z., Granqvist, C. G., Wen, H., Peper, F., … Schmera, G. (2013). Information theoretic security by the laws of classical physics (plenary paper). In Advances in Intelligent Systems and Computing (Vol. 195 AISC, pp. 11–25). Springer Verlag. https://doi.org/10.1007/978-3-642-33941-7_5
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