Cryptanalysis of Sober-t32

Cryptanalysis of Sober-t32

Sober-t32 is a candidate stream cipher in the NESSIE competition. Some new attacks are presented in this paper. A Guess and Determine attack is mounted against Sober-t32 without the decimation of the key stream by the so-called stuttering phase. Also, two distinguishing attacks are mounted against f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Babbage, Steve, De Cannière, Christophe, Lano, Joseph, Preneel, Bart, Vandewalle, Joos
Format: Buchkapitel
Sprache:eng
Schlagworte:
Applied sciences
Computer science
control theory
systems
Cryptanalysis
Cryptography
Distinguishing Attack
Exact sciences and technology
Guess and Determine Attack
Information, signal and communications theory
Memory and file management (including protection and security)
Memory organisation. Data processing
NESSIE
Security Evaluation
Signal and communications theory
Software
t32
Telecommunications and information theory
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Beschreibung
Zusammenfassung:Sober-t32 is a candidate stream cipher in the NESSIE competition. Some new attacks are presented in this paper. A Guess and Determine attack is mounted against Sober-t32 without the decimation of the key stream by the so-called stuttering phase. Also, two distinguishing attacks are mounted against full Sober-t32. These attacks are not practically feasible, but they are theoretically more efficient than exhaustive key search.
ISSN:0302-9743
1611-3349
DOI:10.1007/978-3-540-39887-5_10