摘要
为解决传统低维二进制混沌序列作为伪随机序列来源而随机性不理想、动力学特性易退化的问题,利用四阶CNN细胞神经网络超混沌系统的四路实数值序列进行比较,生成一种新的四进制超混沌序列,并应用于数字签名算法和数据摘要算法。仿真结果表明,新的超混沌序列的随机性优于传统的二进制混沌序列,能够通过"一次一密"实现复杂网络环境中的快速加密数据传输,克服现有多种加密算法已被破译的问题。
As a new rich source of pseudo-random coding,the random property and dynamical degradation of low-dimensional binary chaotic sequences were non-ideal.Recently,several encryption and message digest algorithms have been deciphered.In order to solve these problems,it proposed an enhanced quaternary hyperchaotic sequence by comparing the four real-valued sequences of fourth-order CNN（cellular neural networks） hyperchaotic system.It proved that the random of quaternary hyperchaotic sequences was superior to the traditional binary chaotic sequences.Simulation results show the feasibility of the encryption algorithm and message digest algorithm in solving ＂one-time pad＂,rapid authentication and encrypted data transmission with complex network environment.
出处
《计算机应用研究》
CSCD
北大核心
2012年第4期1405-1408,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(61074195)
南京大学计算机软件新技术国家重点实验室资助项目(KFKT2011B23)
关键词
四进制
超混沌序列
随机性分析
加密算法
数据摘要算法
quaternary
hyperchaotic sequence
random analysis
encryption algorithm
message digest algorithm
