A new distinguisher for clock controlled stream ciphers
Författare
Summary, in English
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.
Publiceringsår
2005
Språk
Engelska
Sidor
181-195
Publikation/Tidskrift/Serie
Lecture Notes in Computer Science
Volym
3557
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1611-3349