Abstract: Named data networking is a content-centered network. Applying named data networking to the Internet of vehicles to form a vehicular named data networking can effectively solve the limitations brought by traditional TCP/IP communication in the Internet of vehicles. However， vehicular named data network also faces security risks， especially interest flooding attack and on-off attack， which seriously affect the information sharing and secure communication of vehicular named data networking. Aiming at the above attacks， this paper proposed a trusted computing based secure scheme in vehicular named data networking called TSSRA. Firstly， by analyzing the impact of attack behavior on the network， the characteristic values identifying malicious behavior are extracted， and then a trusted computing method based on characteristic values is designed to separate malicious behavior from legitimate behavior by evaluating the trust value of nodes. Simulation results show that the secure mechanism proposed in this paper can effectively suppress the malicious behavior of malicious nodes， enhance the security of the network and ensure the safe and efficient operation of the network.

Key words: vehicular named data networking, secure mechanism, interest flooding attack, on-off attack, trusted computing