基于信任机制与Rank阈值的RPL路由协议  

RPL Routing Protocol Based on Trust Mechanism and Rank Threshold

作　　者：李成星 王珺[1] 徐京明 LI Chengxing;WANG Jun;XU Jingming(College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003

出　　处：《计算机工程》2020年第7期143-149,158,共8页Computer Engineering

基　　金：国家自然科学基金面上项目“面向大规模无线网络感知数据的多标记学习模型与算法”(61571233)。

摘　　要：RPL路由协议是物联网环境中的一种轻量级距离矢量路由协议,其容易受到恶意节点攻击,从而导致网络丢包严重,甚至影响节点间的正常通信。为检测并隔离RPL路由协议中的Rank攻击节点,提出一种基于信任机制与Rank阈值的安全RPL路由协议Sec-RPL。引入直接信任值计算方法,利用攻击节点的恶意行为会引起信任值下降这一特性,初步筛选出正常节点及疑似恶意节点,再根据疑似恶意节点的Rank值与Rank阈值进行比较,将低于Rank阈值的疑似恶意节点确定为攻击节点进行隔离,实现最佳路由决策。仿真结果表明,Sec-RPL路由协议在检测成功率、丢包率及误报率方面均有较好的性能,并且相比OF0-RPL和原RPL路由协议计算资源消耗更少、安全性更高。The RPL routing protocol is a lightweight distance vector routing protocol in Internet of Things(IoT),which is vulnerable to Rank attacks,causing normal communication between nodes to be significantly affected by serious network packet loss.In order to detect and isolate the malicious Rank attack nodes in the RPL routing protocol,this paper proposes a security RPL routing protocol based on trust mechanism and Rank threshold,Sec-RPL,which introduces the detection and isolation technology of malicious nodes.Based on the fact that malicious attacks on nodes will lead to a decrease in the trust value,Sec-RPL filters the normal nodes and suspected malicious nodes preliminarily.Then the Rank values of suspected malicious nodes are compared with the threshold of Rank,and the nodes with a Rank value lower than the threshold are isolated as attack nodes to achieve optimal routing decisions.Simulation results show that the Sec-RPL routing protocol has excellent performance in the success rate of detection,packet loss rate,and false alarm rate.Also,it consumes fewer computing resources and has higher security than the OF0-RPL and original RPL routing protocol.

关 键 词：物联网 RPL路由协议 Rank攻击 信任机制 Rank阈值 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]