Abstract
A “collective” attack on the key is considered, and its connection with the classical capacity of a quantum communication channel is analyzed. It has been shown that the allowable error probability for legitimate users to which the secure key can be extracted is less than half the value for “translucent” eavesdropping and individual measurements.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 80, No. 8, 2004, pp. 639–644.
Original Russian Text Copyright © 2004 by Molotkov.
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Molotkov, S.N. On a collective attack on the key in quantum cryptography on two nonorthogonal states. Jetp Lett. 80, 563–567 (2004). https://doi.org/10.1134/1.1846120
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DOI: https://doi.org/10.1134/1.1846120