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Kish's key exchange scheme is insecure

Lookup NU author(s): Professor Feng Hao


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Kish proposed a scheme to exchange keys between two parties under the concealment of thermal noise. We show that the theoretical model in the scheme implicitly assumes thermal equilibrium throughout the communication channel. This assumption, however, is invalid in real communication systems. A slight temperature difference in the channel, as demonstrated in the paper, will lead to security failure.

Publication metadata

Author(s): Hao F

Publication type: Article

Publication status: Published

Journal: Information Security

Year: 2006

Volume: 153

Issue: 4

Pages: 141-142

ISSN (print): 1751-8709

ISSN (electronic): 1747-0722

Publisher: IET


DOI: 10.1049/ip-ifs:20060068


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