基于分簇的Ad Hoc网络组密钥建立方案

摘要

针对移动Ad Hoc网络的特点,提出了一个基于分簇的移动Ad Hoc网络组密钥建立方案.该方案首先采用部分协商和部分分发相结合的方式建立簇密钥,然后采用完全协商的方式来建立组密钥.协商过程采用椭圆曲线密码体制和双线性对来实施,能够对不诚实节点进行检测和鉴别.簇密钥分发则采用成员过滤技术来实施.另外,还提出了一个签名方案来提供认证性.提出的组密钥建立方案有效地降低了组密钥建立过程的计算和通信开销,并具有较高的安全性和可用性.%Based on the characteristics of Ad Hoc networks, this paper proposed a cluster-based group key establishment scheme in Ad Hoc networks. Firstly, a combination of part negotiation and part distribution was adopted to establish the cluster key, then, a full negotiation method was used to establish the group key. Elliptic curve cryptography and bilinear pairing were employed in the negotiation process; therefore, the dishonest node could be detected and identified. Member filter technique was employed in the cluster key distribution. Moreover, in order to authenticate the messages, a signature scheme was proposed. The proposed group key establishment scheme reduces both the computational overhead and communication costs, and has high security and usability.