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A new distinguisher for clock controlled stream ciphers

Englund, Håkan LU and Johansson, Thomas LU orcid (2005) In Lecture Notes in Computer Science 3557. p.181-195
Abstract
In this paper we present a distinguisher targeting towards irregularly clocked filter generators. The attack is applied on the irregularly. clocked stream cipher called LILI-II. LILI-II is the successor of the cipher LILI-128 and its design was published in [1]. There have been no known attacks better than exhaustive key search on LILI-II. Our attack is-the first of this kind that distinguishes the cipher output from a random source using 2(103) bits of keystream using computational complexity of approximately 2(103) operations.
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Lecture Notes in Computer Science
volume
3557
pages
181 - 195
publisher
Springer
external identifiers
  • wos:000230869900012
  • scopus:26444575925
ISSN
1611-3349
DOI
10.1007/b137506
language
English
LU publication?
yes
id
a23043e7-e00c-45de-ae0e-3a702e872e66 (old id 226840)
date added to LUP
2016-04-01 12:29:29
date last changed
2025-10-14 12:31:09
@article{a23043e7-e00c-45de-ae0e-3a702e872e66,
  abstract     = {{In this paper we present a distinguisher targeting towards irregularly clocked filter generators. The attack is applied on the irregularly. clocked stream cipher called LILI-II. LILI-II is the successor of the cipher LILI-128 and its design was published in [1]. There have been no known attacks better than exhaustive key search on LILI-II. Our attack is-the first of this kind that distinguishes the cipher output from a random source using 2(103) bits of keystream using computational complexity of approximately 2(103) operations.}},
  author       = {{Englund, Håkan and Johansson, Thomas}},
  issn         = {{1611-3349}},
  language     = {{eng}},
  pages        = {{181--195}},
  publisher    = {{Springer}},
  series       = {{Lecture Notes in Computer Science}},
  title        = {{A new distinguisher for clock controlled stream ciphers}},
  url          = {{http://dx.doi.org/10.1007/b137506}},
  doi          = {{10.1007/b137506}},
  volume       = {{3557}},
  year         = {{2005}},
}