一种移动自组网络安全路由发现协议

A Secure Route Discovery Protocol for Mobile Ad Hoc Network

移动自组网络(MMANET)中所有节点都能移动并以任意方式组成动态连接的网络,其特点为构建移动信息网提供有利保证。但MMANET节点往往无人照管,所以容易受到恶意节点的攻击。针对移动自组网络的安全问题,将基于椭圆曲线的签名方案应用到按需路由协议的路由请求消息中,得到一种安全的AODV协议(SEAODV),该协议不使用双线性映射等复杂的数学运算,且在路由发现过程中节点使用动态变化的伪身份和私钥,实现身份和位置的私密性。利用网络仿真软件NS2,比较SEAODV与AODV路由协议在黑洞和灰洞攻击下的性能。仿真结果表明在恶意节点攻击下SEAODV具有更好的性能。

Mobile Ad hoc Network(MMANET)is a collection of wireless mobile nodes that dynamically creates network without a fixed infrastructure.Its characteristics provide a favorable guarantee for the construction of marine information network.However,MANET nodes are often unattended and are vulnerable to malicious nodes.To solve the security problem of MANET,applies an Elliptic curve signature scheme to the routing request message of the on-demand routing protocol,and obtains a secure AODV Protocol(SEAODV).The protocol does not use complex mathematical operations such as bilinear mapping,and nodes use dynamically changing pseudo-identities and private keys during routing discovery to achieve the privacy of identity and location.Using the network simulation software NS2,we compared the performance of the SEAODV and AODV routing protocols under blackhole and grayhole attacks.Simulation results show that SEAODV has better performance under malicious node attack.