基于AES的ZigBee标准安全机制分析

Analysis of the Security Mechanisms for the ZigBee Standard Based on AES

ZigBee是一种新兴无线传感器网络标准,为研究其安全性,本文对ZigBee标准协议栈的安全体系、安全模式、密钥管理方法及安全机制进行了分析,给出了加密、鉴别算法代码。ZigBee的安全服务可以作用在媒体访问控制层、网络层和应用层,有住宅模式与商业模式两种安全模式,有主密钥、链接密钥和网络密钥三种密钥。ZigBee的安全性基于AES-128算法的CCM*操作模式,有多种安全方案,CTR模式保证秘密性,CBC-MAC模式保证数据完整性,CCM*模式既保证秘密性又保证数据完整性,是一种比较安全的无线传感网络标准。

ZigBee is an emerging standard for wireless sensor networks. In order to study the security of the ZigBee standard, this paper analyzes the ZigBee security architecture , security model, key management methods and security mechanisms,and gives the encryption algorithm code to identify.The ZigBee security services can be applied to the MAC layer, network layer and the application layer.There are two types of safe modes：residential mode and commercial mode.There are also three keys：master key, link key and network key. The security of ZigBee depends on the CCM＊ mode of the AES128.There are also several security scheme：the CTR mode ensures confidentiality,the CBCMAC mode ensures data integrity,and the CCM＊ mode ensures both of them.We can see that ZigBee is a more secure wireless sensor network standard than others.