Ad hoc网中基于哈希的对偶密钥预分配方案

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。

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

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 oneway 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 mana...