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On the linear complexity of nonlinearly filtered PN-sequences

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 917)

Abstract

A method of analysis for the linear complexity of nonlinearly filtered PN-sequences is presented. The procedure provides a general lower bound for the linear complexity and an algorithm to improve it. The results obtained are valid for any nonlinear function with a unique term of maximum order and for any maximal-length LFSR. This work, which has as starting point “the root presence test” by Rueppel, is based on the handling of binary strings instead of determinants in a finite field.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  1. 1.Laboratory of CryptographyInstitute of Electronics of Communications (CSIC)MadridSpain
  2. 2.Department of Statistics, Operations Research and Computation, Faculty of MathsUniversity of La LagunaLa LagunaSpain

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