IEEE 802.15.4标准因其低速率、低成本、低功耗、高质量,被认为是无线传感器网络和无线个人域网络的理想实现技术。简要介绍了无线传感器网络及其主要特点和问题,及无线传感器网络的安全需求。提出了增强安全性的IEEE802.15.4协议SE-IEEE802.15.4研究,其中使用公钥加密算法ECC来实现IEEE802.15.4协议的数字签名。最后采用NS-2平台对其进行仿真,并进行了性能和安全性的分析。
With the characteristics of low rate, low cost, low power and high quality, IEEE 802.15.4 standard is considered to be the ideal technology to implement wireless sensor networks and wireless personal area networks. In this paper, at first introduce the main characters and problems of wireless sensor network. Then introduce security dernands of wireless sensor network. And then propose a new security enhanced IEEE802.15.4 protocol. In the new protocol, use ECC to realize digital signature, which encryption key is smaller than RSA. At last adopt NS- 2 platform to simulate them and make performance and security analysis.