针对当前电子政务系统中的网络信息受到威胁的问题，本文通过研究信息安全技术和电子政务安全体系来解 决。首先对网络信息安全中的加密技术、入侵检测技术、防火墙技术、数字签名等技术进行描述；其次设计电子政务安全体系 框架，分析安全体系的支撑技术；最后从物理层、网络层和应用层三个方面对信息的安全实现进行论述。本文对于电子政务的 维护人员具有一定的积极意义。

In view of the problem of the current e-government system information being threatened in the network, this paper solves it with the information security technology and e-government security system. Firstly, it describes the encryption technology, intrusion detection technology, firewall technology, digital signature technology, etc; secondly, it designs the e-government security system framework and analyzes the security system supporting technology ; finally, it discusses on the realization of information security from three aspects: physical layer, network layer and application layer. This paper has a certain positive significance for e-government maintenance personnel.