通信学报 ›› 2022, Vol. 43 ›› Issue (7): 126-133.doi: 10.11959/j.issn.1000-436x.2022108

• 学术论文 • 上一篇    下一篇

基于全体圈个数为4的LFSR构造de Bruijn序列的研究

周琮伟, 胡斌, 关杰   

  1. 信息工程大学密码工程学院,河南 郑州 450001
  • 修回日期:2022-04-15 出版日期:2022-07-25 发布日期:2022-06-01
  • 作者简介:周琮伟(1994- ),男,四川眉山人,信息工程大学博士生,主要研究方向为移位寄存器中的数学理论
    胡斌(1972- ),男,河南信阳人,博士,信息工程大学教授、博士生导师,主要研究方向为密码设计与分析
    关杰(1974- ),女,河南郑州人,博士,信息工程大学教授、博士生导师,主要研究方向为密码设计与分析
  • 基金资助:
    国家自然科学基金资助项目(61572516);国家自然科学基金资助项目(61802437)

Construction de Bruijn sequence based on whole LFSR with 4 cycles

Congwei ZHOU, Bin HU, Jie GUAN   

  1. Department of Cryptogram Engineering, Information Engineering University, Zhengzhou 450001, China
  • Revised:2022-04-15 Online:2022-07-25 Published:2022-06-01
  • Supported by:
    The National Natural Science Foundation of China(61572516);The National Natural Science Foundation of China(61802437)

摘要:

为了提高并圈法的构造效率,拓宽并圈法的应用深度,从圈结构中圈个数的角度,提出了基于全体圈个数为4的LFSR构造de Bruijn序列的方法。基于LFSR的级联特征,确定了一类级联型的反馈移位寄存器的圈结构,并据此给出了圈个数为4的n级LFSR的精确个数,以及基于全体圈个数为4的n级LFSR构造n级de Bruijn序列的全部数目。

关键词: 线性反馈移位寄存器, deBruijn序列, 级联, 圈结构

Abstract:

In order to improve the construction efficiency and widen the application depth of cycle-joining method, from the view of the number of cycles in the cycle structure, a method for constructing de Bruijn sequence based on whole LFSR with 4 cycles was proposed.Based on the characteristic of cascade connection of LFSR, the cycle structure of a class of cascaded feedback shift registers was determined.Accordingly, the exact number of whole n-order LFSR with 4 cycles was given, and the total number of n-order de Bruijn sequences constructed from whole n-order LFSR with 4 cycles as well.

Key words: linear feedback shift register, de Bruijn sequence, cascade connection, cycle structure

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