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A new simple technique to attack filter generators and related ciphers

Författare:
Publiceringsår: 2004
Språk: Engelska
Sidor: 39-53
Publikation/Tidskrift/Serie: Selected Areas in Cryptography / Lecture Notes in Computer Science
Volym: 3357
Dokumenttyp: Konferensbidrag
Förlag: Springer-Verlag

Sammanfattning

This paper presents a new simple distinguishing attack that can be applied on stream ciphers constructed from filter generators or similar structures. We demonstrate the effectiveness by describing key recovery attacks on the stream cipher LILI-128. One attack on LILI-128 requires 247 bits of keystream and a computational complexity of roughly 253. This is a significant improvement compared to other known attacks

Disputation

Nyckelord

  • Technology and Engineering
  • filter generators
  • computational complexity
  • LILI-128
  • key recovery attacks
  • stream ciphers

Övrigt

11th International Workshop, SAC 2004.
9-10 Aug. 2004
Waterloo, Ont., Canada
Published
Yes
  • ISSN: 0302-9743
  • ISBN: 3-540-24327-5

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