战术移动自组网脆弱性分析与仿真

针对战术移动自组网协议的安全性、脆弱性等问题,分析并仿真出适用于战术移动自组网的攻击方案,增强对敌方战场通信电台的控制能力,造成敌方战场通信指挥系统性能衰减甚至瘫痪.该方案从战术移动自组网的介质访问控制(media access control,MAC)层、内联网层、传输层的协议特征分析,解析战术网络电台在MAC层信道竞争接入、内联网层拓扑更新和传输层传输控制协议(transmission control protocol,TCP)的3次握手机制下存在的协议漏洞,并在NS3网络仿真平台中分层构建不同的攻击模型.该模型在内联网层解决了传统移动自组网中路由黑洞攻击不适用于战术移动自组网的问题,同时在传输层重构了TCP半连接队列机制.对比了攻击前网络性能的变化,仿真结果表明,各层实施的攻击技术都能有效降低战术移动自组网的网络性能,验证了所建攻击模型的合理性.

Vulnerability analysis and simulation of tactical mobile Ad Hoc networks

Aiming at the security and vulnerability of the tactical mobile Ad Hoc networks protocol, a specific attack scheme is proposed to enhance the control ability of the enemy''s devices, causing the performance degradation or even paralysis of the battlefield communication command system. By analyzing the protocol characteristics of the MAC (media access control) layer, Intranet layer and transmission layer, this scheme analyzes the vulnerabilities of MAC layer channel competition access, Intranet layer routing topology updates and 3-way handshake of TCP protocol in transport layer. Different attack models are built in NS3 (Network Simulator 3). These attack models solve the problem that routing black hole attack in traditional mobile Ad Hoc networks are not applicable in Intranet layer and reconstruct TCP semi-connection queue mechanism in transport layer. The emulation results show that the attack implemented by each layer can effectively reduce the network performance of tactical mobile Ad Hoc networks, and verify the rationality of the attack model.