Paper 2005/241 Original: eprint.iacr.org/2005/241 ↗

On the binary sequences with high $GF(2)$ linear complexities and low $GF(p)$ linear complexities

Hao Chen
Liqing Xu
Abstract

Klapper [1] showed that there are binary sequences of period $q^n-1$ ($q$ is a prime power $p^m$, $p$ is an odd prime) with the maximal possible linear complexity $q^n-1$ when considered as sequences over $GF(2)$, while the sequences have very low linear complexities when considered as sequences over $GF(p)$. This suggests that the binary sequences with high $GF(2)$ linear complexities and low $GF(p)$ linear complexities are note secure in cryptography. In this note we give some simple constructions of the binary sequences with high $GF(2)$ linear complexities and low $GF(p)$ linear complexities. We also prove some lower bounds on the $GF(p)$ linear complexities of binary sequences and a lower bound on the number of the binary sequences with high $GF(2)$ linear complexities and low $GF(p)$ linear complexities .

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2005-07-30: last updated
2005-07-30: published
Short URL
https://ia.cr/2005/241
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2005/241,
      author = {Hao Chen and Liqing Xu},
      title = {On the binary sequences with high $GF(2)$ linear complexities and low $GF(p)$ linear complexities},
      howpublished = {Cryptology {ePrint} Archive, Paper 2005/241},
      year = {2005},
      url = {https://eprint.iacr.org/2005/241}
}
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