| A Perturbing Scheme of Digital Chaos |
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| 作者姓名： | 刘镔 罗向阳 刘粉林 |
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| 作者单位： | Information Eng. Inst. Information Eng. Univ. Zhengzhou 450002 China，Information Eng. Inst. Information Eng. Univ. Zhengzhou 450002 China，Information Eng. Inst. Information Eng. Univ. Zhengzhou 450002 China |
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| 基金项目： | NationalNaturalScienceFoundationofChina(No.60374004) |
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| 摘 要： | Introduction Inrecentyears,therehasbeengrowinginter-estinginchaoticcryptography.Bothdigitaland analogchaoticencryptionmethodshavebeenpro-posedandanalyzed1-7].Indigitalciphers,chaotic systemsaremostlyemployedtogeneratepseudo-randombits3-5].Chaoticsystemshavemanyperfectcharacter-istics,suchasmixingandsensitivitytoinitialcon-ditions,whichcanbeconnectedwiththoseofgood ciphers,suchasconfusionanddiffusion6-8].Unfortunately,whenchaoticsystemsarereal-izedinfinitecomputingprecision,theirdigitaldy-n…
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| 关 键 词： | 干扰方法 方案 数字技术 混沌原理 |
| 文章编号： | 1007-1172（2006）02-0172-05 |
| 收稿时间： | 2005-10-10 |
A Perturbing Scheme of Digital Chaos |
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| LIU Bin,LUO Xiang-yang,LIU Fen-lin.A Perturbing Scheme of Digital Chaos[J].Journal of Shanghai Jiaotong university,2006,11(2):172-176. |
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| Authors: | LIU Bin LUO Xiang-yang LIU Fen-lin |
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| Abstract: | With finite computation precision, digital chaos will lose chaotic characteristic. An efficient perturbance-based algorithm perturbing chaos variable algorithm(PCV) was proposed, which can be regarded as a remedy to digital chaos. After being perturbed, digital chaos systems are able to generate pseudo random sequences with perfect statistical properties and can be used as key stream generators in cryptogram. |
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| Keywords: | cryptography chaos piecewise linear chaotic map pseudo random number generator |
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