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移动ad hoc网络是一种新型的移动多跳无线网络。其自身的特征,如网络规模庞大、动态的拓扑结构、有限的计算、通信和存储能力等,使得传统的密钥分配和管理机制无法直接应用于该网络。提出了一种新的适用于移动ad hoc网络的组密钥协商协议。该协议在环状分层结构上基于多线性映射进行组密钥的协商和分配,使得节点在密钥协商过程中具有低计算开销与低通信开销的优势,较好地解决了在移动ad hoc网络中进行组密钥协商时所遇到的节点能量受限问题,适用于移动ad hoc网络。
Mobile ad hoc network is a new type of mobile multi-hop wireless network. Its own characteristics, such as large-scale network, dynamic topology, limited computing, communication and storage capabilities, make the traditional key distribution and management mechanism can not be directly applied to the network. A new group key agreement protocol for mobile ad hoc networks is proposed. The protocol negotiates and allocates group keys based on multi-linear mapping on ring-shaped hierarchical structure, which makes nodes have the advantages of low computing overhead and low communication overhead in key agreement, The problem of limited node energy encountered in the group key agreement in the network is applicable to a mobile ad hoc network.