路由器端电子邮件拦截与放行设计与实现

针对实时电子邮件传输过程中安全性和可靠性的需求,提出一种在路由器端基于特征分析的拦截与放行方法。通过对电子邮件传输协议和内核机制的分析,以及对特征文件的解析,在内核态下采用多模式匹配方法对数据包进行识别及时的做出判断。实验结果表明,在满足可行性的前提下,对邮件实现安全性过滤,该方法具有很好的时效性。

E-mail Interception and Release on Router

According to security and stability requirements of real-time E-mail transmission, an intercept and release method based on feature analysis at the router are proposed. Through the analysis of e-mail transmission protocol and kernel mechanism, and then analysis of the feature file, the multi-pattern matching method is used to identify the data packets in the kernel state, the multi-pattern matching method is used to identify the data packets in the kernel state. Experimental results show that, under the premise of satisfying the feasibility, the security filtering of the mail is realized, and the method has good timeliness.