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A directional wave measurement attack against the Kish key distribution system.

ABSTRACT: The Kish key distribution system has been proposed as a classical alternative to quantum key distribution. The idealized Kish scheme elegantly promises secure key distribution by exploiting thermal noise in a transmission line. However, we demonstrate that it is vulnerable to nonidealities in its components, such as the finite resistance of the transmission line connecting its endpoints. We introduce a novel attack against this nonideality using directional wave measurements, and experimentally demonstrate its efficacy.

SUBMITTER: Gunn LJ

PROVIDER: S-EPMC4173037 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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A directional wave measurement attack against the Kish key distribution system.

Gunn Lachlan J LJ Allison Andrew A Abbott Derek D

Scientific reports 20140924

The Kish key distribution system has been proposed as a classical alternative to quantum key distribution. The idealized Kish scheme elegantly promises secure key distribution by exploiting thermal noise in a transmission line. However, we demonstrate that it is vulnerable to nonidealities in its components, such as the finite resistance of the transmission line connecting its endpoints. We introduce a novel attack against this nonideality using directional wave measurements, and experimentally ...[more]

PMID: 25248868

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