标题:Improved attacks on reduced-round camellia-128/192/256
作者:Dong, Xiaoyang ;Li, Leibo ;Jia, Keting ;Wang, Xiaoyun
通讯作者:Wang, Xiaoyun
作者机构:[Dong, Xiaoyang ;Li, Leibo ;Wang, Xiaoyun ] Key Laboratory of Cryptologic Technology and Information Security, Ministry of Education, Shandong Univers 更多
会议名称:RSA Conference Cryptographers’ Track, CT-RSA 2015
会议日期:21 April 2015 through 24 April 2015
来源:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
出版年:2015
卷:9048
页码:59-83
DOI:10.1007/978-3-319-16715-2_4
关键词:Block cipher; Camellia; Key-dependent attack; Meet-in-the-middle attack; Multiple differential attack
摘要:Camellia is awidely used block cipher, which has been selected as an international standard by ISO/IEC. In this paper, we consider a new family of differentials of round-reduced Camellia-128 depending on different key subsets. There are totally 224 key subsets corresponding to 224 types of 8-round differentials, which cover a fraction of 1 − 1/215 of the keyspace. And each type of 8-round differential consists of 243 differentials. Combining with the multiple differential attack techniques, we give the key-dependent multiple differential attack on 10-round Camellia-128 with data complexity 291 and time complexity 2113. Furthermore, we propose a 7-round property for Camellia-192 and an 8-round property for Camellia-256, and thenmount themeet-in-the-middle attacks on 12-round Camellia-192 and 13-round Camellia-256, with complexity of 2180 encryptions and 2232.7 encryptions, respectively. All these attacks start from the first round in a single key setting. © Springer International Publishing Switzerland 2015.
收录类别:EI;SCOPUS
Scopus被引频次:4
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930463472&doi=10.1007%2f978-3-319-16715-2_4&partnerID=40&md5=b079846f9ee48193b3d87d238957d15a
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