【摘要】 采用封包过滤安全代理对主机进出的网络数据包进行检查,保证了数据进出的合法性和有效性,以及数据通信的一致性.讨论封包安全过滤安全代理的基本组成和功能,并采用windows下的Hook技术实现了核心层的封包过滤驱动程序.更多还原

【Abstract】 The network data package is inspected by the security agent based on the network package filtering so as to ensure the valid data and consistency of data communications existing in the hosts ′entrance and exit.In this paper,the consistence and functions of the network package filtering is discussed and the driver program of this agent is implemented by using the hook technology under Windows.更多还原