Novel multi-party quantum key agreement protocols under collective noise

Novel multi-party quantum key agreement protocols under collective noise
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集体噪声下的新型多方量子密钥协商协议

DOI:
10.1142/s0217984921501372
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发表时间:
2021-01
影响因子:
1.9
通讯作者:
Huicun Yu
Huicun Yu
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Jie Tang;Lei Shi;Jiahua Wei;Yang Xue;Huicun Yu

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基于逻辑Bell态,提出了两种新的集体噪声下的多方量子密钥协商协议。该协议充分利用四比特逻辑Bell态作为量子资源,通过新颖的编码操作生成共享密钥。安全性分析表明,这两个协议可以抵抗参与者和外部攻击。此外,与现有的集体噪声下的多方QKA协议相比,我们的协议具有更高的量子比特效率。最后,我们对效率和安全性之间的关系进行了仿真,仿真结果与协议安全性分析的结论完全一致。
Based on the logic Bell states, we present two novel multi-party quantum key agreement (QKA) protocols under collective noise. The proposed protocols make full use of four-qubit logic Bell states as quantum resources and perform the novel encoding operation to generate the shared key. The security analysis shows that these two protocols can resist against both participant and outsider attacks. Furthermore, compared with the other existing multi-party QKA protocols over collective noise, our protocols have higher qubit efficiency. Finally, we perform the simulation of the relationship between efficiency and security, which is completely consistent with the conclusion of the security analysis of the protocols.
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