Ad hoc网中基于哈希的对偶密钥预分配方案  

Hash-based Pair-wise Key Pre-distribution Scheme for Ad hoc Network

作　　者：张金颖[1] 颜西山[1] 王建文[1] 

机构地区：[1]福建师范大学软件学院,福建福州350007

出　　处：《信息安全与通信保密》2010年第2期97-99,共3页Information Security and Communications Privacy

基　　金：福建省教育厅基金资助项目(编号:JB07054)

摘　　要：随机密钥预分配是无线Ad hoc网络中最有效的密钥管理机制。提出了一个适用于Ad hoc网络的基于哈希函数的对偶密钥预分配方案。方案利用哈希函数的单向性,由哈希链形成密钥池,节点仅需预分发数量较少的密钥,就能与邻近节点有效建立对偶密钥。方案具有较低的存储成本与计算开销,同时能达到完全连通性,并能动态管理节点与密钥。分析表明,方案具有较好的有效性和安全性,更适合Ad hoc网络。Random pre-distribution of secret key is one of the most practical schemes in wireless Ad hoc networks. A pair-wise key pre-distribution scheme for Ad hoc networks is proposed. With the advantage of one- way Hash function, the key pool is composed of Hash chain. The nodes, only by pre-distributing a few of secret keys, could establish pair-wise keys amongst its neighboring nodes. This scheme is of some properties, including less storage size and computing overhead, full connectivity, dynamic node and key management. The theoretical analysis shows that the proposed scheme performs well in terms of efficiency and security strength, and is fairly suitable for Ad hoc networks.

关 键 词：自组网 对偶密钥 预分配 哈希 

分 类 号：TN918.82[电子电信—通信与信息系统]