Facts, myths and fights about the KLJN classical physical key exchanger
This work clarifies misconceptions and defends the security of a classical physical key exchange method, which is incremental in nature.
The paper addresses criticism of the Kirchhoff-law-Johnson-noise (KLJN) classical physical key exchange method, finding that while some attacks are valid, an extended KLJN system remains secure against all attacks, preserving its unconditional security.
This paper deals with the Kirchhoff-law-Johnson-noise (KLJN) classical statistical physical key exchange method and surveys criticism - often stemming from a lack of understanding of its underlying premises or from other errors - and our related responses against these, often unphysical, claims. Some of the attacks are valid, however, an extended KLJN system remains protected against all of them, implying that its unconditional security is not impacted.