Edge Computing-Based VANETs’ Anonymous Message Authentication

Vehicular Ad-hoc Networks (VANETs) have high requirements for real-time data processing and security of message authentication. In order to solve the computing power asymmetry between vehicles road side units (RSUs) in VANETs under high-density traffic, accelerate speed authentication, problems computational overhead long authentication time caused by use bilinear pairing encryption technology similar message-batch-authentication schemes, we propose introducing concept edge (EC) into using idle nodes’ resources assist RSU quickly authenticating messages achieve load balancing multiple traffic flows. We idea RSUs messages. This scheme performs two identity-based authentications based on identity signature constructed elliptic curve cryptography (ECC). One them is batch vehicle sending RSU-authenticated with free resources, as temporary nodes (TENs), other TEN fixed-edge-node RSUs. The are used reduce burden time, thereby improving efficiency system performed a analysis prove its properties compared it schemes terms performance. experimental results show that our has transmission 2400 bytes when there four TENs, number verification requests reaches 20, which outperforms methods. gap will be more evident numbers increase.