| 双侧停走生成器的概率模型 |
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| 引用本文： | 胡学先,刘文芬,李世取.双侧停走生成器的概率模型[J].电子与信息学报,2007,29(12):2974-2977. |
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| 作者姓名： | 胡学先 刘文芬 李世取 |
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| 作者单位： | 解放军信息工程大学信息工程学院,郑州,450002 |
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| 摘 要： | 该文首次建立了双侧停走生成器(Bilateral Stop/Go Generator)的概率模型,研究了模型中作为钟控函数输入的中间状态序列的马氏性、遍历性及严平稳性等概率性质,得到了生成器输出序列中0,1分布是不平衡的结论,由此指出不能将这种生成器直接作为密钥流生成器;给出了生成器输出序列和相应的LFSR输出序列之间的符合率以及一阶差分序列之间的符合率;证明了生成器输出序列满足强大数定律和中心极限定理.
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| 关 键 词： | 双侧停走生成器 钟控 马氏性 符合率 |
| 文章编号： | 1009-5896（2007）12-2974-04 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006-12-29 |
A Probabilistic Model of the Bilateral Stop/Go Generator |
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| Hu Xue-xian,Liu Wen-fen,Li Shi-qu.A Probabilistic Model of the Bilateral Stop/Go Generator[J].Journal of Electronics & Information Technology,2007,29(12):2974-2977. |
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| Authors: | Hu Xue-xian Liu Wen-fen Li Shi-qu |
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| Affiliation: | Institute of Information Engineering, PLA Information Engineering University, Zhengzhou 450002, China |
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| Abstract: | The probabilistic models for the bilateral stop/go generator are established. The properties such as Markov property, ergodic property and stationarity of the internal state sequence are studied. It is proved that the distributions of 0 and 1 in the output sequence are imbalanced, which implies that this generator can not be used as keystream generator directly. The rate of coincidence between the output sequence and corresponding LFSR sequences, together with their first derivatives are analyzed. The limit properties of the output sequence are also considered. |
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| Keywords: | Bilateral stop/go generator Clock-controlled Markov property Rate of coincidence |
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