非线性组合序列作为一类重要的密钥流生成器，其设计和分析一直是序列密码研究的一个重要方向。
Nonlinear combined sequences as a kind of the important key sequence generators, its design and analysis are always hotspot and difficulty of stream cipher.
论文第四章重点介绍用非线性映射方法分析原核生物基因密码子使用情况并得到的相关结论。
In chapter IV, the codon usage preferences in prokaryotic organism are analyzed by nonlinear mapping method.
应用推荐