S-SEAD:可安全再生哈希链的SEAD协议

S-SEAD:Securely Re-initializable Hash Chain Mechanism for SEAD Protocol

由于Ad Hoc网络的特殊性,安全路由协议成为其研究的一个热点。当前已提出的一些安全路由协议都还不太完善。主要针对安全路由协议SEAD的不足,提出了S-SEAD协议,尤其对其哈希链再生时的安全问题提出了一种新的哈希链安全再生方法,从而保证哈希链的连续性,并且不需要任何可信任的中心机构,符合Ad Hoc网络无中心的特点。最后针对改进前后的协议,在安全性和执行效能方面用NS2平台进行了仿真,结果表明S-SEAD协议虽然微小增加了数据包的收发时延和总开销,却保证了更好的安全性。

Owing to the peculiarity of Ad Hoc networks,the secure routing protocol is becoming a hot topic.Considering the existing secure routing protocols are imperfect,S-SEAD is proposed to attack the insufficiencies of SEAD protocol.,It provides a new hash chain re-initialization mechanism,which can make the hash chain continuous without trusted authority to meet the acentric network requirement of Ad Hoc networks.In term of security and execution efficiency,simulations on NS2 platform have shown that S-SEAD protocol has improved security at the cost of a little bit increase of packet send/receive delay and overall overhead.