混沌在图像加密中的应用

Application Research of Image Encryption Based on Chaos System

利用混沌序列对初值的敏感性的特点,提出一种新型的基于Lorenz系统和DES加密算法的混合图像加密方案。利用Lorenz混沌方程生成DES所需要的密钥,发挥了混沌序列和DES加密算法各自的优势,扩展了DES加密算法的密钥空间,使保密通信的安全性得到了很大提高,计算机仿真结果表明该算法具有可行性。

By using chaotic series sensibitity,a new kind of hybrid encryption algorithm based on Lorenz chaos equations and DES was proposed.This algorithm took advantages of chaotic sequence and DES algorithm,greatly expanding the DES encryption algorithm cryptographic key space.The computer simulation results show that the proposed algorithm is very much feasible.