基于Winpcap的邮件还原系统的实现

Implementation of an email recovering system based on Winpcap

随着互联网的普及,SMTP/POP3协议传输方式下的邮件已成为最简便、最经济的通信方式,但许多有害的邮件信息也随之而来。针对这些问题,在VC开发环境下,研究并实现了基于Winpcap的邮件监控及还原系统。该系统设计了多线程模块,可以同时处理50个邮件及附件信息,并对网络数据包的捕获、过滤与重组、信头解码、附件处理、信体内容提取等模块进行了算法优化。功能测试和验证结果表明,该系统稳定、可扩展,达到实时性要求。

With the prevalence of the Internet ,email of SMTP/POP3 protocol has become the most convenient and economical communications means,yet along goes a great deal of harmful information. According to these problem,this article proposes an email security monitoring and recovering system which is based on Winpcap in VC software environment on Windows system. This system which designs the multi-thread modul can deal with 50 email and information of accessories at one time the system presents some improvement in algorithm,includeing capturing,filtering and reordering of the network packages,email-header decoding,attachment-processing and bodies-content and so on. The experiment indicates that this system can be extended greatly,good stability and meet the real-time request.