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题名:
some new observations on the sms4 block cipher in the chinese wapi standard
作者: Zhang Wentao ; Wu Wenling ; Feng Dengguo ; Su Bozhan
会议文集: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
会议名称: 5th International Conference on Information Security Practice and Experience
会议日期: APR 13-15,
出版日期: 2009
会议地点: Xi an, PEOPLES R CHINA
关键词: WAPI ; Block Cipher ; SMS4 ; Diffusion Transformation ; Differential Cryptanalysis
出版者: INFORMATION SECURITY PRACTICE AND EXPERIENCE, PROCEEDINGS - 5TH INTERNATIONAL CONFERENCE, ISPEC 2009
出版地: HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
收录类别: istp,ei,acm
ISSN: 0302-9743
ISBN: 978-3-642-00842-9
部门归属: Zhang, Wentao; Wu, Wenling; Feng, Dengguo; Su, Bozhan Chinese Acad Sci, Inst Software, State Key Lab Informat Secur, Beijing 100190, Peoples R China.
主办者: Xidian Univ, Xidian Univ, Sch Telecommun Engn, Key Lab Comp Networks & Informat Security, Minist Educ
英文摘要: SMS4 is a 128-bit block cipher used in the WAPI standard in wireless networks in China. The cipher has attracted much attention in the past two years. This paper consists of two parts. The first part is on the design of the linear diffusion layer L of SMS4. Some new observations on L are present, which open out the design rationales of L and such class functions to a great extent. The second part is on the differential attack against SMS4. A class of 18-round differential characteristics with a higher probability is given. Then a simple differential attack on 22-round SMS4 is present, which is an improvement of the previous work, thus our attack becomes the best known one on SMS4. Furthermore, we make a remark on the construction of differential characteristics of SMS4.
语种: 英语
内容类型: 会议论文
URI标识: http://ir.iscas.ac.cn/handle/311060/8386
Appears in Collections:信息安全国家重点实验室_会议论文

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Recommended Citation:
Zhang Wentao,Wu Wenling,Feng Dengguo,et al. some new observations on the sms4 block cipher in the chinese wapi standard[C]. 见:5th International Conference on Information Security Practice and Experience. Xi an, PEOPLES R CHINA. APR 13-15,.
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