Theoretical design for a class of chaotic stream cipher based on nonlinear coupled feedback

作     者：HuGuojie WangLin FengZhengjin 

作者机构：MobileDivisionZTECorporationShanghai201203P.R.China DepartmentofMechanicalEngineeringShanghaiJiaotongUniversityShanghai200030P.R.China 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2005年第16卷第1期

页      码：155-159页

摘      要：A class of chaotic map called piecewise-quadratic-equation map to design feedback stream cipher is proposed. Such map can generate chaotic signals that have uniform distribution function, δ-like autocorrelation function. Compared with the piecewise-linear map, this map provides enhanced security in that they can maintain the original perfect statistical properties, as well as overcome the defect of piecewise-linearity and expand the key space. This paper presents a scheme to improve the local complexity of the chaotic stream cipher based on the piecewise-quadratic-equationmap. Both the theoretic analysis and the results of simulation show that this scheme improves the microstructure of the phase-space graph on condition that the good properties of the original scheme are remained.

主 题 词：chaos stream cipher nonlinear-coupled feedback phase-space graph. 

学科分类：11[军事学] 1105[1105] 0839[0839] 08[工学] 110505[110505] 110503[110503] 

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馆 藏 号：203962372...