论文标题
通过非最大值纠缠集群状态对量子密钥协议的勾结攻击和反击
Collusion attack and counterattack on the quantum key agreement via non-maximally entangled cluster states
论文作者
论文摘要
最近，Li等人。 （INT J理论物理：doi：10.1007/s10773-020-04588W，2020）提出了通过非最大程度纠缠的群集状态提出的多方量子密钥协议协议。他们声称，拟议的协议可以帮助所有参与者对最终共享密钥具有平等的影响。但是，这项研究指出了一个漏洞，这使Li等人的方案遭受了串通攻击的影响，即几个不诚实的参与者可以合谋操纵最终共享密钥而不会被他人检测到。为了避免此漏洞，这里提出了改进。
Recently, Li et al. (Int J Theor Phys: DOI: 10.1007/s10773-020-04588-w, 2020) proposed a multiparty quantum key agreement protocol via non-maximally entangled cluster states. They claimed that the proposed protocol can help all the involved participants have equal influence on the final shared key. However, this study points out a loophole that makes Li et al.'s protocol suffer from a collusion attack, i.e. several dishonest participants can conspire to manipulate the final shared key without being detected by others. To avoid this loophole, an improvement is proposed here.
