关键词: 命名数据网络（NDN）, 车辆自组织网络（VANET）, 兴趣包涟漪式广播扩散攻击（PBDA）, 缓解策略, 节点间协作

Abstract: Named data networking is the important network architecture of next generation network. However, a new attack pattern is found when named data networking and vehicular Ad-hoc network combine, this new attack, named popple broadcast diffusion attack. In this paper, mitigation strategies based on cooperation between nodes are poposed for popple broadcast diffusion attack. Nodes obtain PIT tables of neighboring nodes by directly and indirectly exchanging PIT table information. To ensure the normal network service purposes, PIT tables of neighbor nodes are mapped to their own PIT entries at different time to discard the malicious interest packet. Experimental results show that the detection and mitigation methods can improve the interest packet satisfaction rate.

Key words: named data network (NDN), vehicular Ad-hoc network (VANET), popple broadcast diffusion attack(PBDA), mitigation strategies, internode collaboration