Security of quantum key distribution with imperfect devices
Gottesman, D.; Lo, H.-K.; Lutkenhaus, N.; Preskill, J.
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Volume , Issue , 27 June-2 July 2004 Page(s): 136 -
Digital Object Identifier   10.1109/ISIT.2004.1365172
Summary: This paper prove the security of the Bennett-Brassard (BB84) quantum key distribution protocol in the case where the source and detector are under the limited control of an adversary. This proof applies when both the source and the detector have small basis-dependent flaws, as is typical in practical implementations of the protocol. The estimation of the key generation rate in some special cases: sources that emit weak coherent states, detectors with basis-dependent efficiency, and misaligned sources and detectors.

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