Paper 2000/040 Original: eprint.iacr.org/2000/040 ↗

Decimation Attack of Stream Ciphers

Eric FILIOL
Abstract

This paper presents a new attack called {\em Decimation Attack} of most stream ciphers. It exploits the property that multiple clocking (or equivalently $d$-th decimation) of a LFSR can simulate the behavior of many other LFSRs of possible shorter length. It yields then significqnt improvements of all the previous known correlation and fast correlation attacks provided a new criterion is satisfied. This criterion on the length of the feedback polynomial is then defined to resist the decimation attack. Simulation results and complexity comparison are detailed for ciphertext only attack.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2000-09-22: last updated
2000-08-07: published
Short URL
https://ia.cr/2000/040
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2000/040,
      author = {Eric FILIOL},
      title = {Decimation Attack of Stream Ciphers},
      howpublished = {Cryptology {ePrint} Archive, Paper 2000/040},
      year = {2000},
      url = {https://eprint.iacr.org/2000/040}
}
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