An Efficient and Secure Arbitrary N-Party Quantum Key Agreement Protocol Using Bell States
An Efficient and Secure Arbitrary N-Party Quantum Key Agreement Protocol Using Bell States
复制标题
一种高效安全的贝尔态任意N方量子密钥协商协议
DOI：
10.1007/s10773-017-3553-x
复制
发表时间：
2018-01-01
影响因子：
1.4
通讯作者：
Yu, Wen-Bin
中科院分区：
文献类型：
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作者：
Liu, Wen-Jie;Xu, Yong;Yu, Wen-Bin
Shukla等人最近提出了使用Bell态和Bell测量的两种量子密钥协商协议（Quantum Inf. Process. 13（11），2391-2405，2014）。但是，Zhu等人指出存在一些安全缺陷，并提出了改进版本（Quantum Inf. Process. 14（11），4245-4254，2015）。在这项研究中，我们将显示朱等人。的改进仍然存在一些安全问题，其效率不够高。为了解决这些问题，我们利用四个Pauli运算{I，Z，X，Y}来编码两个比特，而不是原来的两个运算{I，X}来编码一个比特，从而提出了一个高效安全的任意N方量子密钥协商协议.该协议引入了诱饵单光子信道检测机制以避免窃听者的翻转攻击，并采用后测量机制来防止合谋攻击。安全性分析表明，该协议能够保证量子密钥协商的正确性、安全性、保密性和公平性。
Two quantum key agreement protocols using Bell states and Bell measurement were recently proposed by Shukla et al. (Quantum Inf. Process. 13(11), 2391-2405, 2014). However, Zhu et al. pointed out that there are some security flaws and proposed an improved version (Quantum Inf. Process. 14(11), 4245-4254, 2015). In this study, we will show Zhu et al.'s improvement still exists some security problems, and its efficiency is not high enough. For solving these problems, we utilize four Pauli operations {I, Z, X, Y} to encode two bits instead of the original two operations {I, X} to encode one bit, and then propose an efficient and secure arbitrary N-party quantum key agreement protocol. In the protocol, the channel checking with decoy single photons is introduced to avoid the eavesdropper's flip attack, and a post-measurement mechanism is used to prevent against the collusion attack. The security analysis shows the present protocol can guarantee the correctness, security, privacy and fairness of quantum key agreement.