In order to prevent the leakage of sensitive data and provide the basis for the access of electronic documents, an electronic file access method based on the characteristics of data stream is proposed. By studying the data packet format, transmission mode and the behavior characteristics of the transmission of electronic documents on network, the paper extracts the characteristic values of the common network protocol transmission of electronic documents, designs and constructs the extended strong data stream feature database, and gives the process of feature database detection and prevention of electronic file network leakage. Experimental data prove that the data stream feature database is efficient, simple to use and has high accuracy.%针对电子文件网络安全问题,为了防止敏感数据的泄漏,为电子文件的访问提供依据,提出了一种基于数据流特征的电子文件访问方法.通过研究网络传输电子文件的数据报文格式、传送形式以及通信行为特征,结合电子文件数据流的概念,提取了常用网络协议传输电子文件的特征值,设计和构建了扩展性强的数据流特征数据库,并给出了该特征数据库检测和防止电子文件网络泄漏过程.实验数据证明,该数据流特征数据库运行高效,简单使用并且具有较高的正确率.
展开▼
