Attacking reduced-round versions of the SMS4 block cipher in the Chinese WAPI standard

被引：0
作者：
Lu, Jiqiang [1 ]
机构：
[1] Royal Holloway Univ London, Informat Secur Grp, Egham TW20 0EX, Surrey, England
来源：
INFORMATION AND COMMUNICATIONS SECURITY, PROCEEDINGS | 2007年 / 4681卷
关键词：
block cipher; SMS4; impossible differential cryptanalysis; rectangle attack;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
SMS4 is a 32-round block cipher with a 128-bit block size and a 128-bit user key. It is used in WAPI, the Chinese WLAN national standard. In this paper, we present a rectangle attack on 14-round SMS4, and an impossible differential attack on 16-round SMS4. These are better than any previously known cryptanalytic results on SMS4 in terms of the numbers of attacked rounds.
引用
收藏
页码：306 / 318
页数：13
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