{"title":"Cryptanalysis of a strong proxy signature scheme with proxy signer privacy protection","authors":"Hung-Min Sun, Bin-Tsan Hsieh","doi":"10.1109/CCST.2003.1297606","DOIUrl":null,"url":null,"abstract":"Shum and Wei proposed an enhancement to the Lee et al.'s strong proxy signature such that the proxy signer's identity is hidden behind an alias. We show that Shum and Wei's enhancement is insecure against the original signer's forgery. In other words, their scheme does not possess the strong unforgeability security requirement.","PeriodicalId":344868,"journal":{"name":"IEEE 37th Annual 2003 International Carnahan Conference onSecurity Technology, 2003. Proceedings.","volume":"634 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 37th Annual 2003 International Carnahan Conference onSecurity Technology, 2003. Proceedings.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CCST.2003.1297606","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
Shum and Wei proposed an enhancement to the Lee et al.'s strong proxy signature such that the proxy signer's identity is hidden behind an alias. We show that Shum and Wei's enhancement is insecure against the original signer's forgery. In other words, their scheme does not possess the strong unforgeability security requirement.
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