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σ-LFSR极小多项式研究

Minimal Polynomial of σ-LFSR Sequences
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摘要 σ-LFSR是一种基于字的适合软硬件实现的新型线性反馈移位寄存器。它的极小多项式系数属于F2m[σ],σ是Frobenius自同构。证明了分量序列极小多项式是同一个特征多项式的因子;得到了σ-LFSR极小多项式矩阵的第1个不变因子是序列的唯一极小生成多项式(系数在有限域F2m上);给出了一个判断向量序列是σ-LFSR的充要条件。 σ-LFSR is a word-oriented LFSR suitable for fast software and hardware implementation.σ-LFSR's coefficient of the minimal polynomial belongs to F2m[σ],while σ is Frobenius auto-isomorphic.The minimal polynomial of the coordinate sequence is proved to be a factor of the same characteristic polynomial.The first invariant factor of the minimal polynomial matrix of σ-LFSR is the unique minimal generator(the coefficient belongs to F2m).A sufficient and necessary condition is found out to check whether a vector sequence is an σ-LFSR sequence.
出处 《信息工程大学学报》 2011年第6期646-649,655,共5页 Journal of Information Engineering University
基金 国家973计划资助项目(2007CB807902) 全国优秀博士学位论文作者专项基金(FANEDD-2007B74) 国家自然科学基金资助项目(61003291)
关键词 Frobenius自同构 σ-LFSR序列 极小多项式 基于字 Frobenius auto-isomorphic σ-LFSR sequences minimal polynomial word-oriented
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参考文献7

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