混沌多表代换密码的设计

Design of Chaos Multi-table Substitution Ciphers

利用混沌映射具有对初值的敏感性和遍历性等特点 ,采用多次迭代的一维均衡混沌映射构造了一种非周期、均匀分布的多表代换密码。它克服了以往多表代换密码的缺点 ,实现了非周期、均匀分布的无限代换序列的多表代换密码 。

By using the sensitivity and ergodic characteristic of the chaos map, a non_periodic and uniformity distributing multi_chart substitution is designed with multi_iterative equilibrium chaos map, which overcomes the disadvantage of the multi_chart substitution ciphers, realizes the non_periodic and uniformity distributing infinity substitution sequence of the multi_chart substitution ciphers, and improves the anti_decipher and security of the multi_chart substitution ciphers.