Nonlinear feedback shift registers（NFSRs） are widely used as building blocks in the design of stream ciphers. Let NFSR（f） be an NFSR with the characteristic function f and let G（f） be the set of output sequences of NFSR（f）. For a given NFSR（f）, if there exists an affine Boolean function l such that G（l） ? G（f）, then G（l） is called an affine sub-family of NFSR（f）. In this paper, by skillfully combining previous ideas, the authors give a new upper bound on the order of affine sub-families of NFSR（... 

【文章來源】：Journal of Systems Science & Complexity. 2020,33(01)EISCICSCD

【文章頁數(shù)】：19 頁

【參考文獻(xiàn)】：
期刊論文
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