Improving the security of multiparty quantum secret sharing based on entanglement swapping against participant attack

Song Lin, Fei Gao, Fen-Zhuo Guo +2

In a recent paper [Z. J. Zhang and Z. X. Man, Phys. Rev. A 72, 022303(2005)], a multiparty quantum secret sharing protocol based on entanglement swapping was presented. However, as…