{"title":"Cryptanalysis and Discussion on Two Attribute-Based Encryption Schemes","authors":"Yi-Fan Tseng, Jheng-Jia Huang, Hao Yang, Tsung-Yu Chien, Chieh-Han Wu","doi":"10.1109/AsiaJCIS57030.2022.00014","DOIUrl":null,"url":null,"abstract":"Attribute-based encryption (ABE), which was first conceptualized by Sahai and Waters in 2005, has been developed into one of the most popular research topics in modern cryptography. Various variants of ABE has been designed and proposed in literature, e.g., ABE supporting user/attribute revocation, pairing-free ABE, etc. In this work, we study two ABE schemes proposed by Sethia et al. and Guo et al., respectively, in 2001. We found that, the scheme of Sethia et al. is insecure against the collusion attacks, and the scheme of Guo et al. fails to revoke a user. Therefore, in this manuscript, we will review on their schemes, and give the corresponding cryptanalysis. Besides, the discussion on the reasons to the attacks and possible improvement will be presented as well.","PeriodicalId":304383,"journal":{"name":"2022 17th Asia Joint Conference on Information Security (AsiaJCIS)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 17th Asia Joint Conference on Information Security (AsiaJCIS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AsiaJCIS57030.2022.00014","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Attribute-based encryption (ABE), which was first conceptualized by Sahai and Waters in 2005, has been developed into one of the most popular research topics in modern cryptography. Various variants of ABE has been designed and proposed in literature, e.g., ABE supporting user/attribute revocation, pairing-free ABE, etc. In this work, we study two ABE schemes proposed by Sethia et al. and Guo et al., respectively, in 2001. We found that, the scheme of Sethia et al. is insecure against the collusion attacks, and the scheme of Guo et al. fails to revoke a user. Therefore, in this manuscript, we will review on their schemes, and give the corresponding cryptanalysis. Besides, the discussion on the reasons to the attacks and possible improvement will be presented as well.
基于属性的加密(ABE)是Sahai和Waters于2005年首次提出的概念，目前已发展成为现代密码学中最热门的研究课题之一。文献中已经设计和提出了ABE的各种变体，例如，支持用户/属性撤销的ABE，无配对ABE等。在这项工作中，我们研究了Sethia et al.和Guo et al.分别于2001年提出的两种ABE方案。我们发现，Sethia等人的方案对合谋攻击是不安全的，Guo等人的方案无法撤销用户。因此，在本文中，我们将回顾他们的方案，并给出相应的密码分析。此外，还将讨论攻击的原因和可能的改进。
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