摘要
随着智能ＩＣ（ｉｎｔｅｇｒａｔｅｄｃｉｒｃｕｉｔ）卡应用领域的不断扩大，系统所需的随机数的好坏成为人们的研究重点之一．随机数在ＩＣ卡应用系统中用于卡片和读卡机之间的认证、数据加密及其安全传输．文中在分析离散Ｌｏｇｉｓｔｉｃ映射产生混沌序列的白噪声特性基础上，结合ＩＣ卡的历史运行记录，给出了适于ＩＣ卡产生随机数的方法．仿真结果表明，该方法产生的混沌序列自相关性和互相关性良好，并且能保证迭代初始值未知，保证序列的随机性，适合ＩＣ卡应用．
The quality of random number (RN) used in cryptosystem has become a research focus,with the increasing extension of the application fields of smart IC (integrated circuit) cards.RN is applied to mutual authentication between IC cards and card readers,data encryption,and data secure transmission.Based on the analysis of the characteristics of chaotic sequences generated by discrete time logistic map,and the historical records stored on EEPROM,an RN generation method for IC cards is presented in the paper.Simulation results show that the sequences generated by this method have good correlation property,and the sequences are randomly unpredictable because the initial values are masked.This method is suitable for smart IC card application systems.
出处
《计算机研究与发展》
EI
CSCD
北大核心
1999年第4期509-512,共4页
Journal of Computer Research and Development
