通信学报 ›› 2011, Vol. 32 ›› Issue (9): 33-37.doi: 1000-436X(2011)09-0033-05

• 学术论文 • 上一篇    下一篇

本原σ-LFSR序列距离向量的计算

谭刚敏1,曾光1,韩文报1,张娜2   

  1. 1 信息工程大学 信息工程学院,河南 郑州 450002
    2 解放军95833部队,北京 100092
  • 出版日期:2012-09-25 发布日期:2017-05-28
  • 基金资助:
    :国家自然科学基金资助项目;国家重点基础研究发展计划(“973”计划)基金资助项目;教育部新世纪优秀人才支持计划资助;全国优秀博士学位论文作者专项基金资助项目

Calculation of interval vectors of primitive σ-LFSR sequences

Gang-min TAN1,Guang ZENG1,Wen-bao HAN1,Na ZHANG2   

  1. 1 Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China
    2 Unit 95833 of the PLA,Beijing 100092,China
  • Online:2012-09-25 Published:2017-05-28
  • Supported by:
    The National Natural Science Foundation of China;The National High Technology Research and Development Program of China(863 Program);The National Basic Research Program of China(973 Program);The New Century Excellent Talents in University Education Ministry of China;Foundation for the Author of National Excellent Doctoral Dissertation of China

摘要:

证明了本原σ-线性反馈移位寄存器(σ-LFSR)序列距离向量的计算与有限域上离散对数的计算等价,同时给出一个本原σ-LFSR序列距离向量的计算方法。还给出一类特殊本原σ-LFSR序列距离向量的计算方法,该方法将有限域上离散对数的计算转化到其子域上离散对数的计算,复杂度显著降低。

关键词: 序列密码, 本原σ-LFSR, 距离向量, 离散对数

Abstract:

The equivalence between calculation of interval vectors of primitive σ-linear feedback shift register(σ-LFSR)sequences and calculation of discrete logarithms over finite field was proved,at the same time a calculation method for interval vectors of primitive σ-LFSR sequences was given.Then another calculation method for interval vectors of a class of primitive σ-LFSR sequences was obtained,which converted the calculation of discrete logarithms over finite field to its subfield and the complexity was much lower.

Key words: stream cipher, primitive σ-LFSR, interval vector, discrete logarithm

No Suggested Reading articles found!