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arXiv · 1005.3224

Cellular Automata in Stream Ciphers

Amparo Fúster-Sabater
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Abstract

A wide family of nonlinear sequence generators, the so-called clock-controlled shrinking generators, has been analyzed and identified with a subset of linear cellular automata. The algorithm that converts the given generator into a linear model based on automata is very simple and can be applied in a range of practical interest. Due to the linearity of these automata as well as the characteristics of this class of generators, a cryptanalytic approach can be proposed. Linear cellular structures easily model keystream generators with application in stream cipher cryptography.

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Amparo Fúster-Sabater. 2010-05-18. Cellular Automata in Stream Ciphers. https://arxiv.org/abs/1005.3224

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