A Scheme to Improve the Security of IoT Communication

In the Internet of Vehicles scenario of the Internet of Things, the security of transmission has become a big challenge. In order to deal with such security risks, we add AES encryption mechanism to the classic Ad hoc On-Demand Distance Vector Routing (AODV) routing protocol in mobile sensor networks and design an AODV-AES encrypted communication protocol, which can be applied to wireless sensor networks of Internet of Vehicles. The protocol has the following advantages: low delay, low energy consumption, and high security. The above advantages show that the AODV-AES encryption communication protocol meets the characteristics of low delay, limited memory, and energy storage of mobile sensor nodes. We also compare several protocols through NS2 simulation software, add blackhole attacked in malicious node attacks, and analyze the average end-to-end delay when attacked by different numbers of nodes. In addition, we also analyze the changing trend of source node energy consumption when attacked in different scenarios. The experimental results show that the AODV-AES encryption communication protocol can not only meet the function of encrypting and decrypting privacy information, but also effectively reduce the average end-to-end delay and reduce the energy consumption of the source node when attacked. It shows that the AODV-AES encryption communication protocol can be applied to the wireless mobile sensor network of the Internet of Vehicles, and improve communication security.