TY - GEN
T1 - Analysis of two attacks on reduced-round versions of the SMS4
AU - Toz, Deniz
AU - Dunkelman, Orr
PY - 2008
Y1 - 2008
N2 - SMS4 is a 128-bit block cipher used in WAPI (the Chinese national standard for wireless networks). Up until recently, the best attacks on SMS4 known, in terms of the number of rounds, were the rectangle attack on 14 rounds and the impossible differential attack on 16 rounds (out of 32 rounds) presented by Lu. While analyzing them, we noticed that these attacks have flaws and that their complexity analysis is inaccurate. In this paper we make a more comprehensive analysis of these attacks and further improve these results.
AB - SMS4 is a 128-bit block cipher used in WAPI (the Chinese national standard for wireless networks). Up until recently, the best attacks on SMS4 known, in terms of the number of rounds, were the rectangle attack on 14 rounds and the impossible differential attack on 16 rounds (out of 32 rounds) presented by Lu. While analyzing them, we noticed that these attacks have flaws and that their complexity analysis is inaccurate. In this paper we make a more comprehensive analysis of these attacks and further improve these results.
UR - http://www.scopus.com/inward/record.url?scp=57049089457&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-88625-9_10
DO - 10.1007/978-3-540-88625-9_10
M3 - Conference contribution
AN - SCOPUS:57049089457
SN - 3540886249
SN - 9783540886242
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 141
EP - 156
BT - Information and Communications Security - 10th International Conference, ICICS 2008, Proceedings
PB - Springer Verlag
T2 - 10th International Conference on Information and Communications Security, ICICS 2008
Y2 - 20 October 2008 through 22 October 2008
ER -