1202.3201 (Yong-gang Tan)

Fake state attack on practically decoy state quantum key distribution    [PDF]

Yong-gang Tan

In this paper, security of practically decoy state quantum key distribution
under fake state attack is considered. If quantum key distribution is insecure
under this type of attack, decoy sources can not also provide it with enough
security. Strictly analysis shows that Eve should eavesdrop with the aid of
photon-number-resolving instruments. In practical implementation of decoy state
quantum key distribution where statistical fluctuation is considered, however,
Eve can attack it successfully with threshold detectors.

View original: http://arxiv.org/abs/1202.3201