基于混沌映射的动态分组密码算法研究

提出一种基于混沌迭代映射的动态分组密码加密算法,充分利用了混沌的遍历性、伪随机性及对初始条件和参数的敏感性等特性.同时根据混沌序列仅由初始值和参数控制,易于生成的特点,采取了一种新的动态加密方案,提高了加密算法的安全性.仿真结果证明了该方法的有效性.

Study on chaotic map based dynamical block cipher

Based on the properties of chaos such as the random-like behavior,ergodicity,and the sensitive dependence on initial conditions and parameters,a new block encryption cipher is presented.Moreover,since the chaotic sequence is easy to generation and can only be determined by the initial values and parameters,a new dynamical scheme is adopted in the proposed encryption algorithm to improve the security.Various experimental results demonstrate the efficiency of the proposed method.