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GF(q)上广义自缩序列的线性复杂度
The Linear Complexity of the Generalized Self-Shrinking Generator on GF(q)
【摘要】 针对基于GF(q)上m-序列的广义自缩序列,本文利用一种新手段给出线性复杂度上界值.主要讨论素数q大于等于3时,GF(q)上广义自缩序列的线性复杂度.对于GF(3)上广义自缩序列,把以往GF(3)上广义自缩序列的线性复杂度的上界缩小得到一个更精确地上界值.拓展到大于3的素数,给出GF(q)上广义自缩序列的线性复杂度精确上界值.
【Abstract】 The purpose is to discuss the linear complexity of the generalized self-shrinking generator which is based on the m-sequences of GF(q),and analyze the linear complexity on the condition when prime q greater than 3.Reach the upper bound of the generalized self-shrinking generator linear complexity on GF(3),and diminish the linear complexity upper bound.The linear complexity upper bound on GF(q) can have better accurate value.
【关键词】 线性复杂度;
广义自缩序列;
m-序列;
特征多项式;
流密码;
【Key words】 linear complexity; m-sequences; generalized self-shrinking; characteristic polynomial; stream cipher;
【Key words】 linear complexity; m-sequences; generalized self-shrinking; characteristic polynomial; stream cipher;
【基金】 河南省教育厅自然科学指导性计划项目(No.200510459003)
- 【文献出处】 电子学报 ,Acta Electronica Sinica , 编辑部邮箱 ,2011年02期
- 【分类号】TN918.1
- 【被引频次】5
- 【下载频次】86