摘要
基于修正版的Marotto定理提出了一种新的2维离散混沌映射。通过一个实数域到整数域的变换将该映射产生的混沌流转换成二进制伪随机序列。在此基础上结合二维非等长Arnold变换设计了数字图像加密算法,该算法具有类似一次一密的功能。对该算法的密钥空间、密钥敏感性、统计特性和抗干扰能力进行仿真分析。研究结果表明:该加密算法可以达到较好的加解密效果,可以满足商业网络安全通讯的需求。
Based on a modified version of Marotto theorem for discrete-time chaotic systems,this paper introduced a novel 2-dimensional discrete-time chaotic system. By a transformation from the real set to the integer set,the chaotic streams were transformed to binary key streams. Combined with 2-dimension non equilateral Arnold transformation,a color image encryption algorithm was designed,which function is similar to one-time pad. The key space,key parameter sensitivity,statistical analysis and anti-interference ability were analyzed. The results show that the scheme has sound encryption and decryption effects. Numerical simulations reveal that the scheme is effective in commercial network communication.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2014年第5期37-41,109,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(61074192
61170037)
