中文摘要：

相关密钥Sandwich攻击是目前理论上攻击Kasumi算法最有效的方法之-2010年Shamir等构造了7-轮Kasumi算法相关密钥Sandwich攻击区分器，该区分器成立的概率为2^-14，并被用于8-轮Kasumi算法的攻击．本文利用相关密钥Sandwich攻击的基本思想，扩展了中间层的概率计算方法，构造了15个概率为2-1‘或2-1。的7-轮Kasumi算法相关密钥Sandwich区分器．在相同的攻击效率下，为8-轮Kasumi算法的攻击提供了更多的选择．

英文摘要：

Related Key Sandwich Attack is an efficient method to attack Kasumi block ciphers. Shamir and his coauthors constructed a relatedkey sandwich distinguisher for 7-round Kasumi and improved that the probability of the relatedkey sandwich distinguisher is 2-14. The distinguisher can be used to attack the 8-round Kasumi. The purpose of this paper is to construct some other fifteen relatedkey sandwich distinguishers for Kasumi. The probability of these distinguishers is 2^-14or 2^-16. The people could have more opportunity attack 8-round Kasumi algorithm.