The Optimization and Implementation of Data Flow Security Checking Algorithm

对于网络数据流安全检测问题，文章提出将用于文档复制检测的指纹技术应用于网络数据流的内容安全性检测上的新方法，并对文档指纹提取算法做了改进优化，改进后的算法能够有效检测网络中的数据流是否存在信息泄露问题，并且优化后的算法执行速度快、效率高。About how to avoid the leakage of secret information when important texts transmit through the Internet, this paper worked out a new way that use text ifngerprint to check out the security of the Internet through a security model.Additionally, this paper had made some changes of ifngerprint algorithm and the changed ifngerprint algorithm could check the data lfow on the Internet fast and accurately.010173-17