Algorithm Research on Fuzzy Test Method of CAN Bus Based on Field Weight

Abstract

The communication network in the vehicle, especially the CAN bus network, is under serious security threat. The security of CAN bus network can be improved by fuzzy test technology. At present, there is little research on the fuzzy test technology of automobile can bus. The test case generation method mostly adopts the random generation method, without considering the application layer protocol format of CAN bus, which reduces the passing rate of CAN bus message, It affects the efficiency of fuzzy testing. This paper compares the advantages and disadvantages of the fuzzy testing algorithm based on the improved wgan-gp and the fuzzy testing algorithm based on the field weight. Both algorithms can find the vulnerabilities in the CAN bus and affect the vehicle to produce abnormal response. The fuzzy testing algorithm based on the improved wgan-gp has shorter discovery time and response time and better effect.