{"title":"Hybrid Protocol for Password-Based Key Exchange in Three-party Setting","authors":"He Xinzheng, Ru Bei, Fei Jin-long, Xu Baocheng","doi":"10.1109/NSWCTC.2009.278","DOIUrl":null,"url":null,"abstract":"Modular design is a common approach for dealing with complex tasks in modern cryptology. The critical of this approach is to design a secure hybrid protocol. In this paper, we study password-based key exchange in the three-party setting within the UC framework and design a hybrid protocol that UC-securely realizes such task. Next we partition the task into two sub-tasks, three-party key distribution and password-based two-party key exchange, and propose relevant two ideal functionalities, F3pKD, FpwKE. Finally, we present a (F3pKD, FpwKE) -hybrid protocol for password-based three-party key exchange that is proved to be UC-secure with respect to non-adaptive party corruption.","PeriodicalId":433291,"journal":{"name":"2009 International Conference on Networks Security, Wireless Communications and Trusted Computing","volume":"6 13","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 International Conference on Networks Security, Wireless Communications and Trusted Computing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NSWCTC.2009.278","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Modular design is a common approach for dealing with complex tasks in modern cryptology. The critical of this approach is to design a secure hybrid protocol. In this paper, we study password-based key exchange in the three-party setting within the UC framework and design a hybrid protocol that UC-securely realizes such task. Next we partition the task into two sub-tasks, three-party key distribution and password-based two-party key exchange, and propose relevant two ideal functionalities, F3pKD, FpwKE. Finally, we present a (F3pKD, FpwKE) -hybrid protocol for password-based three-party key exchange that is proved to be UC-secure with respect to non-adaptive party corruption.
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