Privacy Amplification For The Kish Cypher
Recently, Horvath, et al. have studied the practical effectiveness of privacy amplification for the Kish cypher and for two subsequent classical key-distribution schemes inspired by it. They find that the high fidelity of the raw key generated in these key-exchange protocols allow Alice and Bob to always extract a secure key provided they have an upper bound on Eve's chances to correctly guess the bits. They conclude that this property can make the Kish cypher highly useful for practical applications.
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