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Cryptanalysis of Achterbahn-128/80

Publiceringsår: 2007
Språk: Engelska
Sidor: 47-52
Publikation/Tidskrift/Serie: IET Information Security
Volym: 1
Nummer: 2
Dokumenttyp: Artikel

Sammanfattning

A key recovery attack on the stream cipher Achterbahn-128/80, a cipher in the second phase of eSTREAM, is given. The key observation is a high dependency between some input bits to the Boolean combining function generating the keystream. It results in the first known attacks on both the 128-bit and the 80-bit variants of the cipher. The number of keystream bits required in the attacks is less than 264, the maximum frame length.

Disputation

Nyckelord

  • Technology and Engineering

Övriga

Published
Yes
  • ISSN: 1751-8709

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