摘要：序列密码设计的核心在于密钥流生成器的设计，本文分析了基于线性反馈移位寄存器的序列密码密钥流生成器的工作机制，在研究Geffe和收缩式非线性组合生成器模型的重构条件之基础上，给出了一般情况下非线性组合生成器整体的重构条件。本文的工作对构建安全序列密码体制有很好的指导意义。

    关键词：序列密码，LFSR，组合生成器

    中图分类号TN918

Research and analysis on the security of key generator

SUN Jing, FU De-sheng

School of computer and software, Nanjing university of information science and technology, Nanjing 210044

    Abstract: Design of key generator is the core process in stream cipher. This paper based on the research of stream cipher and the reconstruction condition of Geffe and shrinking generator, proposed the reconstruction condition for general nonlinear combining generator, which would give guiding significance to the design for the secure stream cipher system.

    Key Words: stream cipher; LFSR; combining generator

    更多详情，请点击下载：http://www.secdoctor.com/uploads/soft/101019/24-101019100Q1.pdf

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