论文标题
使用贝尔国家对共同半量子密钥协议协议的两次攻击和反击
Two attacks and counterattacks on the mutual semi-quantum key agreement protocol using Bell states
论文作者
论文摘要
最近，Yan等人提出了使用Bell状态的共同半量子密钥协议协议。 （Mod。Phys。Lett。A，34，1950294，2019）。拟议的协议试图帮助量子参与者与仅具有有限量子能力的经典参与者共享密钥。 Yan等。声称两个参与者对最终共享密钥都有相同的影响。但是，这项研究指出，古典参与者可以自己操纵自己/自己的最终共享密钥，而无需被发现。为了解决此问题，这里提出了一种改进的方法。
Recently, a mutual semi-quantum key agreement protocol using Bell states is proposed by Yan et al. (Mod. Phys. Lett. A, 34, 1950294, 2019). The proposed protocol tries to help a quantum participant share a key with a classical participant who just has limited quantum capacities. Yan et al. claimed that both the participants have the same influence on the final shared key. However, this study points out that the classical participant can manipulate the final shared key by himself/herself without being detected. To solve this problem, an improved method is proposed here.
