• DocumentCode
    1571560
  • Title

    Calculation for the linear complexity of primitive σ-LFSR sequences

  • Author

    Gao, Fengxiu ; Yang, Yang ; Zhang, Na ; Liu, Xianghui

  • Author_Institution
    Zhengzhou Inf. Sci. & Technol. Inst., Zhengzhou, China
  • Volume
    2
  • fYear
    2011
  • Firstpage
    917
  • Lastpage
    919
  • Abstract
    σ-LFSR is a kind of word-oriented LFSR with high efficiency and good cryptographic properties, especially its software implementation is efficient for modern processors. In practice, primitive σ-LFSR sequences are of the most valuable, and linear complexity is an important parameter of sequences´ security. In this paper, linear complexity of primitive σ-LFSR sequences is studied firstly. Then, with the tool of circulant matrix, a method to determine the linear complexity of primitive σ-LFSR sequence is obtained, which could help us calculate linear complexity of σ-LFSR easily.
  • Keywords
    computational complexity; cryptography; circulant matrix; cryptographic properties; linear complexity calculation; primitive σ-LFSR sequences; software implementation; word-oriented LFSR; Cryptography; Indium tin oxide; Polynomials; circulant matrix; linear complexity; primitive σ-LFSR; stream cipher;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
  • Conference_Location
    Harbin
  • Print_ISBN
    978-1-4244-9792-8
  • Type

    conf

  • DOI
    10.1109/CSQRWC.2011.6037105
  • Filename
    6037105