{"title":"Cryptanalysis of the full CHAIN cipher","authors":"W. Yap, S. Yeo, C. H. Yian","doi":"10.1109/ISIAS.2011.6122792","DOIUrl":null,"url":null,"abstract":"In 1999, Mohammad Peyravian and Don Coppersmith from IBM proposed a structured symmetric key block cipher called CHAIN that supports variable block size, key size and number of rounds. In this paper, we initiate the study of CHAIN's security. More significantly, we show that CHAIN with various block sizes is insecure against impossible differential attack. To the best of our knowledge, this is the first known attack against CHAIN.","PeriodicalId":139268,"journal":{"name":"2011 7th International Conference on Information Assurance and Security (IAS)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 7th International Conference on Information Assurance and Security (IAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISIAS.2011.6122792","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
In 1999, Mohammad Peyravian and Don Coppersmith from IBM proposed a structured symmetric key block cipher called CHAIN that supports variable block size, key size and number of rounds. In this paper, we initiate the study of CHAIN's security. More significantly, we show that CHAIN with various block sizes is insecure against impossible differential attack. To the best of our knowledge, this is the first known attack against CHAIN.
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