摘要
主要论述对序列密码的攻击方法:对于线性反馈移位寄存器序列,利用m序列的游程特性以及序列本身的递推关系,彻底还原产生该m序列的线性反馈移位寄存器。对于非线性组合序列,利用m序列的采样特性,降低其攻击难度,从而易于求取非线性组合生成器中各个线性反馈移位寄存器的极小多项式和初始密钥。
This paper presents some at tacks upon stream cipher:We can get the linear feedback shift register through the analysis of the vernier and recursiv e property of the m-sequence generate d by it.As the same,we can be easy to f ind the mini-mal polynomials and the initial keys of the nonlinear generator by the analysis of the sampling property of m-s equence.
出处
《通信技术》
2003年第8期96-98,共3页
Communications Technology
关键词
序列密码
M序列
游程
采样
BM算法
stream cipher,m-sequence,vernier,sampling, BM algorithm
