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Published December 11, 2006 | Published + Submitted
Journal Article Open

A classical key-distribution system based on Johnson (like) noise — How secure?

Abstract

We present a comprehensive analysis of the Johnson (like) noise based classical key-distribution scheme presented by Kish [L.B. Kish, Phys. Lett. A 352 (2006) 178]. We suggest two passive attack strategies that enable an adversary to gain complete knowledge of the exchanged key. The first approach exploits the transient response of the voltage in the transmission line after the resistors are switched and the second one exploits the finite impedance of the wire connecting the two parties.

Additional Information

© 2006 Elsevier B.V. Received 5 January 2006, Accepted 10 July 2006, Available online 20 July 2006. The authors are grateful to Yuval Cassuto, Barak Dayan and Israel Klich for stimulating discussions and useful comments.

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Published - 1-s2.0-S0375960106010942-main.pdf

Submitted - 0601022.pdf

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Created:
August 22, 2023
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