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Cryptanalysis of Achterbahn-128/80

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Author

Summary, in English

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.

Publishing year

2007

Language

English

Pages

47-52

Publication/Series

IET Information Security

Volume

1

Issue

2

Document type

Journal article

Publisher

Institution of Engineering and Technology

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 1751-8717