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文中针对不使用纠缠态的量子秘密共享方案,提出了一种Bell态替换攻击策略,并定量分析了当量子秘密共享方案采用常见的几种酉操作组合时,这种攻击的最小失败概率,从而得到酉操作的选择和Bell态替换攻击效果之间的若干关系.对于量子秘密共享方案的设计和实施中,如何选择酉操作以保证通信安全的问题,文中的工作具有重要的指导作用.
Aiming at the quantum secret sharing scheme without using entangled states, this paper presents a Bell state replacement attack strategy and quantitatively analyzes the minimum failure probability of this attack when the common quantum secret sharing scheme adopts several common unitary operations. We get the relationship between the choice of unitary operation and the effect of Bell state substitution attack.When designing and implementing the quantum secret sharing scheme, how to choose the unitary operation to ensure the communication security, the work in this paper has an important guiding role.