Research on Secure Routing Technology Based on NDN for VANET

NDN (Named Data Networking) is a new information-centric future network architecture. This new network architecture uses a "named content" mechanism instead of a "named host" mechanism based on TCP/IP networks. The mechanism decouples the geographic location from the identity identifier, while the transport content object itself is attached with security-related metadata. Compared with the traditional IP address-centric TCP/IP network, the information-centric NDN network is more suitable for high-speed dynamic VANET network environment. Therefore, we propose a secure content routing scheme for NOLSR in mobile networks. Despite the introduction of security mechanisms in NDN, these security mechanisms cannot meet the security requirements in wireless networks. In order to establish a secure routing mechanism in wireless dynamic networks, this paper uses identity-based cryptography for key distribution and management, and introduces some new security mechanisms, such as forward security mechanisms to reduce the threat of key leakage. Interest flooding will cause broadcast storm in wireless network. NOLSR adopts MPR mechanism for interest flooding. In order to reduce overhead in wireless mobile networks, LFBL (listen first-forward last) is adopted in MPR. To prevent the selection of the attacker-controlled node as the MPR node and the selection of the self-serving node in the MPR node, the malicious node and the self-private node are selected by using the trust value and voting mechanism between the computing nodes. Finally, this paper analyses the security attributes of NOLSR scheme, verifies the feasibility of NOLSR scheme in detail, and compares the efficiency of this scheme with other related schemes.