2006 | OriginalPaper | Buchkapitel
On the Rate of Coincidence of Two Clock-Controlled Combiners
verfasst von : Xuexian Hu, Yongtao Ming, Wenfen Liu, Shiqu Li
Erschienen in: Information Security and Cryptology
Verlag: Springer Berlin Heidelberg
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Clock-Controlled combiner is a common type of keystream generator for stream cipher applications. In this paper, we introduce a kind of probabilistic model for two clock-controlled combiners, and then study the rate of coincidence between the output sequences of these generators and corresponding LFSRs’ sequences. The analysis conducted indicates that these two combiners may be vulnerable to the correlation attacks.