摘要
运用信息论原理对选择生成器序列进行分析,得到时钟控制序列与钟控输出序列互信息为零的结果,即从选择生成器输出序列中得不到控制序列的任何信息,此外,还得到钟控输入与输出序列互信息的一个下界,所得结论可以为钟控生成器的设计者和分析者提供理论参考.
The sequences of the alternating step generator are analyzed through the method of information theory and some significant results are obtained. The mutual information between clock-controlled sequence and clock- controlled output sequence is zero. This indicates that one can＇t get any information about clock-controlled sequence only from output sequence. Furthermore, the lower bound of mutual information between clock-controlled input and output sequences is given. The results obtained can provide a theoretic reference for designers and analysts who study the clock-controlled generator.
出处
《中国科学院研究生院学报》
CAS
CSCD
2006年第6期775-781,共7页
Journal of the Graduate School of the Chinese Academy of Sciences
基金
计算机网络与信息安全教育部重点实验室开放课题基金项目(20040108)资助
关键词
选择生成器
钟控输入序列
钟控输出序列
控制序列
互信息
alternating step generator, clock-controlled input sequence, clock-controlled output sequences, clock- controlled sequence, mutual information
