The ADS-B Protection Method for Next-Generation Air Traffic Management System

ADS-B data is an important data to effectively utilize limited airspace as it contains main flight information including the location, altitude, speed, and others of plane but it is very vulnerable to hacking attack such as Ground Station Flood Denial, Ground Station Target Ghost Injection, etc. Therefore, the purpose of this study lies in proposing ground-to-ground security framework using SPKI certificate to protect ADS-B data received from the plane. In security framework proposed in this study, each ADS-B sensor connected to ATC is authenticated using SPKI certificate and creates encrypted ADS-B data using the authenticated data. Also, the verification on validity of transmission delayed ADS-B is conducted using timer information.