An Efficient and Secure Arbitrary N-Party Quantum Key Agreement Protocol Using Bell States

被引：0
作者：
Wen-Jie Liu
Yong Xu
Ching-Nung Yang
Pei-Pei Gao
Wen-Bin Yu
机构：
[1] Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET),Jiangsu Engineering Center of Network Monitoring
[2] Nanjing University of Information Science & Technology,School of Computer and Software
[3] Nanjing University of Information Science & Technology,Department of Computer Science and Information Engineering
[4] National Dong Hwa University,undefined
来源：
International Journal of Theoretical Physics | 2018年 / 57卷
关键词：
Quantum key agreement; Bell states; Pauli operations; Single photon checking; Post-measurement mechanism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：195 / 207
页数：12
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