CAJ | 학술논문

在分析Logistic映射基本特性的基础上,提出了一种改进的分段Logistic映射,对这两种映射的倍周期分叉、自相关性和互相关性分别进行了实验分析和比较。结果表明,改进的分段Logistic映射改善了Logistic映射的性能,在系统参数取值变化时保持了良好的遍历性,而且拥有更大的密钥空间和更好的安全性。研究结果为Lo-gistic映射在保密技术中的进一步应用开辟了更为广阔的前景。
재분석Logistic영사기본특성적기출상,제출료일충개진적분단Logistic영사,대저량충영사적배주기분차、자상관성화호상관성분별진행료실험분석화비교。결과표명,개진적분단Logistic영사개선료Logistic영사적성능,재계통삼수취치변화시보지료량호적편력성,이차옹유경대적밀약공간화경호적안전성。연구결과위Lo-gistic영사재보밀기술중적진일보응용개벽료경위엄활적전경。
On the basis of analysis of basic features of Logistic mapping,an improved piecewise Logistic map is proposed.The mapping of the period doubling bifurcation and the autocorrelation and cross correlation of the experimental are analyzed and compared.The results show that the improved piecewise Logistic map improved the performance of Logistic map,and maintained a good ergodicity in the system parameter values change.Moreover,it offers a larger key space and better security.Results are promising for further application of Logistic mapping in security technology.