摘要
本文运用高阶差分的思想对两类密钥流生成器给出了一种概率攻击算法:即在已知明文攻击时,能较快地求出其反馈多项式的抽头;对于唯密文攻击,只要明文非平衡,则该算法仍然有望成功。
In this paper, we give a probability algorithm for several key stream sequence generators using higher order differential, which can find quickly the feedback polynomial using the known plaintext,and it can still succeed possibly using ciphertext only if the plaintext is umbalanced.
出处
《计算机工程与科学》
CSCD
2007年第8期11-14,共4页
Computer Engineering & Science
关键词
差分序列
高阶差分
概率算法
偏差系数
序列密码
differential sequence
higher order differential
probability algorithm
windage coefficient
sequence cryptology
