大连理工大学学报2012，Vol.52Issue(5)：730-735,6.
一种基于复合混沌动力系统的序列密码算法
A stream cipher algorithm based on composite chaotic dynamical systems
摘要
Abstract
A new stream cipher algorithm is designed based on 2-D Logistic map and piecewise linear chaotic map, which uses the output of 2-D Logistic map as the piecewise parameter P of piecewise linear chaotic map. The encryption algorithm is constructed by piecewise linear chaotic map with P. The simulation experiments and security analyses are conducted for this algorithm, and the random properties and the sensitivity to initial value of stream generated by these two maps are studied. The analytical results of security indicate that this algorithm is effective in encryption, the key, plaintext and cipher text form complex and sensitive nonlinear relations, and the correlation between plaintext and cipher text is very small, which makes the algorithm effectively defend statistic analysis. The leaking of key and plaintext information from cipher text can also be effectively prevented.关键词
Logistic混沌映射/分段线性混沌映射/复合混沌动力系统/序列密码Key words
Logistic chaotic map/piecewise linear chaotic map/composite chaotic dynamical system/stream cipher分类
信息技术与安全科学引用本文复制引用
王丽燕,李永华,贾思齐,刚家泰..一种基于复合混沌动力系统的序列密码算法[J].大连理工大学学报,2012,52(5):730-735,6.基金项目
国家自然科学基金资助项目（71072161）. （）
