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http://dx.doi.org/10.13089/JKIISC.2004.14.2.75

A Characteristic of Nonlinear Filter Models based on LFSMs  

Hong, Jin (국가보안기술연구소)
Lee, Dong-Hoon (국가보안기술연구소)
Ji, Sung-Taek (국가보안기술연구소)
Abstract
We present a realization of an LFSM that utilizes an LFSR. This is based on a well-known fact from linear algebra. This structure is used to show that a previous attempt at using a cellular automata in place of an LFSR in constructing a stream cipher did not necessarily increase its security. We also give a general method for checking whether or not a nonlinear filter generator based on an LFSM allows reduction to one that is based on an LFSR and which is vulnerable to Anderson information leakage.
Keywords
LFSM; LFSR;
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