Improved Impossible Differential Cryptanalysis on SMS4

摘要：

This paper presents an improved impossible differential attack on the block cipher SMS4 which is used in WAPI (the Chinese WLAN national standard). Combining with some new observations, this paper can filter out the wrong keys more efficiently, and present an impossible differential attack on 17-round SMS4, which updates the best known impossible differential attacks on reduced SMS4.

关键词： block cipher SMS4 cryptanalysis impossible differential attack

作者: Gaoli Wang

作者单位: School of Computer Science and Technology Donghua University Shanghai, China;State Key Laboratory of Information Security Institute of Software, Chinese Academy of Sciences Beijing, China

会议类型: 国际会议

会议名称: 2010 International Conference on Communications and Intelligence Information Security(2010年国际信息与智能安全学术会议 ICCIIS2010)

会议地点: 南宁

会议语种:英文

页码: 105-108

在线出版日期: 2010-10-13（万方平台首次上网日期，不代表论文的发表时间）