非线性组合序列的差分分析

Differential Attack on Nonlinear Combined Sequences

针对非线性组合流密码的设计特点,结合明文编码与统计特性,分析了密文序列的差分性质,提出了攻击非线性组合序列的差分攻击算法。利用该算法,最后给出了攻击实例。

By combining with the properties of coding and statistic of the plaintext, we discussed the differential properties of the eiphertext sequences which are generated by a nonlinear combined generator. A difference attack algorithm which attacks the nonlinear combined sequences was proposed. In the end of the paper, an attack example of the difference attack algorithm was supplied.