一种基于复合混沌映射的单向Hash函数构造  

One-way Hash function construction based on composite chaotic map

作　　者：王丽燕[1] 李占梅[1] 刘自新[1] 

机构地区：[1]大连大学信息工程学院,辽宁大连116622

出　　处：《大连理工大学学报》2013年第5期742-748,共7页Journal of Dalian University of Technology

基　　金：国家自然科学基金资助项目(71072161)

摘　　要：基于二维Logistic映射和分段线性混沌映射,提出了一种新的Hash函数构造方法.该方法用二维Logistic映射的输出作为分段线性映射的分段参数P,再用带有参数P的分段线性混沌映射构造单向散列函数,最后对算法进行了理论分析和一系列的仿真实验.结果表明该算法所构造的单向散列函数可以满足随机性和抗碰撞性等各项性能指标要求,在数字签名和系统认证方面有着广阔的应用前景.A new construction method of Hash function is introduced based on two-dimensional Logistic map and the piecewise linear chaotic map,which uses the output of two-dimensional Logistic map as piecewise parameter P of piecewise linear chaotic map. Then, one-way Hash function is constructed using piecewise linear chaotic map with P. Lastly, the theoretical analyses and a series of simulation experiments are conducted for the algorithm. The experimental results show that the one- way Hash function can meet the performance indicators demands of random and impact resistance, etc. , and can be widely applied to digital signature and authentication system.

关 键 词：混沌动力系统 HASH函数 二维Logistic混沌映射 

分 类 号：TN918[电子电信—通信与信息系统]