Secure multiparty quantum secret sharing with the collective eavesdropping-check character

Authors:
Gan Gao
Affiliations:
Department of Electrical Engineering, Tongling University, Tongling, China 244000 and Engineering Technology Research Center of Optoelectronic Technology Appliance (Cultivating Base) of Anhui Prov ...
Venue:
Quantum Information Processing
Year:
2013

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Abstract

Combining the block transmission in Long and Liu (Phys Rev A 65:032302, 2002) and the double operations in Lin et al. (Opt Commun 282:4455, 2009), we propose a secure multiparty quantum secret sharing protocol with the collective eavesdropping-check character. In this protocol, only the boss needs to prepare Bell states and perform Bell state measurements, and all agents only perform local operations, which makes this protocol more feasible with the current technique. Incidentally, we show that the other half of secret messages in Lin et al. protocol (Opt Commun 282:4455, 2009) may also be eavesdropped.