一类多方与多方量子秘密共享方案

Multiparty-to-Multiparty Quantum Secret Sharing Scheme

通过采用一种对Bell态的两个粒子分别进行不同局域操作的变换方法,提出一类新型的多方与多方量子秘密共享协议。该协议可以抵抗现有的各种攻击策略如纠缠交换攻击、密集编码攻击等,还可以抵抗成员欺骗攻击,即具备可验证功能。同时,该协议还具有高效率、可动态更新子秘密和增减代理成员等特点。

A kind of new multiparty-to-multiparty quantum secret sharing protocol is proposed based on the double-photons-transform, which performs different local operations on different photons of the Bell state. This protocol can resist not only the existing attacks such as the entanglement- swapping attack and the dense-coding attack, but also the cheating attack from the agent, which is viewed as verifiability. Meanwhile, the protocol is also high-efficient and can change the sub -secrets and the group of agents dynamically.