由设置在具体地点的大量微型传感器所组成的无线传感器网络一般是通过监控并采集特定数据,对数据进行处理,进而逐级传输到用户端的方式来实现网络通信的。鉴于无线传感器网络的自主性和独立性,其安全性能至关重要。通常情况下,无线传感器网络的储存空间以及计算能力较低,攻击漏洞明显。本文通过分析基于流密码的无线传感器网络的若干安全问题,提出一种有效的网络安全方案。 Wireless sensor networks composed of a large number of micro-sensors located in specific locations are generally realized by monitoring and collecting specific data, processing the data, and then transmitting the data to the client in a step-by-step manner to achieve network communication. Given the autonomy and independence of wireless sensor networks, its security is crucial. Under normal circumstances, the wireless sensor network storage space and computing power is low, obvious flaws. In this paper, by analyzing some security problems of WSN based on stream cipher, an effective network security scheme is proposed.