{"title":"A Secure Centralized Multi-Party Quantum Key Distribution Protocol with New Encoding Mode","authors":"Chaonan Wang, Hongfeng Zhu","doi":"10.1007/s10773-023-05398-6","DOIUrl":null,"url":null,"abstract":"<div><p>We propose a secure centralized multi-party quantum key distribution protocol based on four-particle GHZ state. Unlike centralized group session key generated by the third party, this paper uses an election algorithm to select initial participants, and the initial participants generate fairer centralized group session key, reducing dependence on the third party. Using the quantum resource GHZ state combined with unitary operations, a new encoding mode is used to quickly realize multi-party quantum key distribution, and the proposed protocol has lower time complexity. Theoretically, multi-particle GHZ state can be scaled for faster multi-party quantum key distribution. In addition, analysis and comparison show that the proposed protocol can resist common attacks and has feasible efficiency.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"62 6","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Theoretical Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10773-023-05398-6","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
We propose a secure centralized multi-party quantum key distribution protocol based on four-particle GHZ state. Unlike centralized group session key generated by the third party, this paper uses an election algorithm to select initial participants, and the initial participants generate fairer centralized group session key, reducing dependence on the third party. Using the quantum resource GHZ state combined with unitary operations, a new encoding mode is used to quickly realize multi-party quantum key distribution, and the proposed protocol has lower time complexity. Theoretically, multi-particle GHZ state can be scaled for faster multi-party quantum key distribution. In addition, analysis and comparison show that the proposed protocol can resist common attacks and has feasible efficiency.
期刊介绍：
International Journal of Theoretical Physics publishes original research and reviews in theoretical physics and neighboring fields. Dedicated to the unification of the latest physics research, this journal seeks to map the direction of future research by original work in traditional physics like general relativity, quantum theory with relativistic quantum field theory,as used in particle physics, and by fresh inquiry into quantum measurement theory, and other similarly fundamental areas, e.g. quantum geometry and quantum logic, etc.
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