论文部分内容阅读
由于无中心、自组织、拓扑结构变化频繁等原因,使得adhoc网中的路由协议所面临的安全问题比有线网中更为严重,虫洞攻击就是其中之一。文章首先分析了虫洞攻击的原理,同时介绍了一些相关的防御方法,在OLSR协议基础上,增加了区域性的广播密钥思想,让不同地理位置的邻居节点有不同的密钥,即使恶意节点得到数据包也无法解密,有效防御被动的虫洞攻击,最后将模型应用于OLSR路由协议中并在NS2中进行了仿真,验证了假设方案的可行性。
Due to the lack of center, self-organization, frequent changes in topology and other reasons, making routing protocols adhoc network security problems facing more serious than the wired network, worm attack is one of them. The article first analyzes the principle of worm attack and at the same time introduces some related defense methods. Based on the OLSR protocol, the idea of a regional broadcast key is added so that neighboring nodes in different geographical locations have different keys, even malicious The data packet can not be decrypted by the node, which effectively defends passive worm attack. Finally, the model is applied to the OLSR routing protocol and simulated in NS2 to verify the feasibility of the hypothetical scheme.