The modified self-shrinking generator is a non-linear cryptographic sequence generator designed to be used in hardware implementations. In this work, the output sequence of such a generator is obtained as one of the output sequences of a linear model based on Cellular Automata. Although irregularly decimated generators have been conceived and designed as non-linear sequence generators, in practice they can be easy modelled in terms of simple linear structures.978651452016th International Conference on Computational Science and Its Applications (ICCSA)JUL 04-07, 2016Beijing, PEOPLES R CHINA