Finite Key Analysis of the Extended B92 Protocol

Published 16 Jan 2020 in quant-ph and cs.CR | (2001.05940v1)

Abstract: In this paper we derive a key rate expression for the extended version of the B92 quantum key distribution protocol that takes into account, for the first time, the effects of operating with finite resources. With this expression, we conduct an analysis of the protocol in a variety of different noise and key-length settings, and compare to previous bounds on comparable protocols.

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