Research on the TESLA Authentication Algorithm for BDSBAS

In view of the public signal format of the Satellite-Based Augmentation System (SBAS), there is a risk of spoofing attack security threats. The navigation message authentication technology can improve the anti-spoofing ability of SBAS on the system side. At present, Europe and the United States have carried out research on SBAS message authentication technology and actively promoted the standardization of SBAS message authentication. In this paper, aiming at the construction and development of the Beidou Satellite Based Augmentation System (BDSBAS), the design of the TESLA authentication protocol based on the Chinese commercial cryptography standard is carried out. Simulation verification. The simulation results can provide theoretical support for the standardization of BDSBAS message authentication.