在一封最近的信[X H.F 王,。Ji,和 S. 张, Phys。Lett。一 358 (2006 ) 11 ] ,切开的多党的量秘密的改进和量说分享的协议[F.G 邓,等, Phys。Lett。一 354 (2006 ) 190 .] 被介绍。我们学习改进协议的安全并且发现那二或更不诚实的参加者可以从交易者恢复秘密。因此,我们进一步修改改进协议,它让它抵抗这种攻击。
In a recent letter [H.F. Wang, X. Ji, and S. Zhang, Phys. Lett. A 358 (2006) 11], an improvement of the multiparty quantum secret splitting and quantum state sharing protocol [F.G. Deng, et al., Phys. Lett. A 354 (2006) 190.] was presented. We study the security of the improved protocol and find that two or more dishonest participants may recover the secret from the dealer. Hence we further modify the improved protocol, which make it stand against this kind of attack.