An algebraic analysis of trivium ciphers based on the boolean satisfiability problem

McDonald, Cameron, Charnes, Chris, & Pieprzyk, Josef (2008) An algebraic analysis of trivium ciphers based on the boolean satisfiability problem. In Masnyk-Hansen, Olga, Michon, Jean-Francis, Valarcher, Pierre, & Yunes, Jean-Baptiste (Eds.) Proceedings of the 4th International Workshop on Boolean Functions : Cryptography and Applications, Copenhagen, Denmark, pp. 173-184.

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Trivium is a stream cipher candidate of the eStream project. It has successfully moved into phase three of the selection process under the hardware category. No attacks faster than the exhaustive search have so far been reported on Trivium. Bivium-A and Bivium-B are simplified versions of Trivium that are built on the same design principles but with two registers. The simplified design is useful in investigating Trivium type ciphers with a reduced complexity and provides insight into effective attacks which could be extended to Trivium. This paper focuses on an algebraic analysis which uses the boolean satisfiability problem in propositional logic. For reduced variants of the cipher, this analysis recovers the internal state with a minimal amount of keystream observations.

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ID Code: 70345
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Algebraic analysis, Boolean satisfiability
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DATA FORMAT (080400)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2008 Please consult the authors
Deposited On: 22 Apr 2014 04:42
Last Modified: 30 Apr 2014 01:48

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