无线传感器网络中蜜罐捕获及反馈机制的蠕虫传播模型

Worm propagation model for honeypot capture and feedback mechanism in wireless sensor networks

网络蠕虫依靠快速传播以及自我复制的能力在网络中大肆传播,对网络产生了一定的威胁.首先,在经典SIR模型中考虑节点免疫后的再感染问题,并引入受损节点(蠕虫传播在无线传感器网络下扫描到但未被感染的节点),引入受损节点后的模型(SDIRS模型)利用网络节点的特点有效遏制蠕虫初期的传播.然后,提出了P-SDIRS模型,将蜜罐的捕获机制进一步结合在SDIRS模型的基础上.在P-SDIRS模型中,得到了基本再生数、平衡点以及稳定性,并通过数值模拟验证模型的有效性.

Network worms,which rely on fast propagation and self-replication abilities to spread in networks,pose certain threats to networks.In this paper,the classical SIR model is firstly considered,not only regarding the reinfection problem after node immunization,but also introducing damaged nodes(nodes scanned but not infected by worm propagation)in wireless sensor networks.The model(SDIRS)after incorporating damaged nodes utilizes network node characteristics to effectively curb worm propagation at initial stages.Then,the P-SDIRS model is proposed,which further combines the honeypot capture mechanism on top of the SDIRS model.In the P-SDIRS model,the basic regeneration number,equilibrium point,and stability are obtained,and model validity is verified through numerical simulation.