T-ATMChain: Blockchain-based identity authentication for air traffic management

The air traffic management (ATM) system is an intelligent system, which integrates the ground computer network, airborne network and space satellite (communication and navigation) network by the ground-air data link system. Due to the openness and widely distribution of ATM system, the trust relationship of all parties in the system is pretty complex. At present, public key infrastructure (PKI) based identity authentication method is more and more difficult to meet the growing demand of ATM service. First, through the analysis of the organizational structure and operation mode of ATM system, this paper points out the existing identity authentication security threats in ATM system, and discusses the advantages of adopting blockchain technology in ATM system. Further, we briefly analyze some shortcomings of the current PKI-based authentication system in ATM. Particularly, to address the authentication problem, this paper proposes and presents a trusted ATM Security Authentication Model and authentication protocol based on blockchain. Finally, this paper makes a comprehensive analysis and simulation of the proposed security authentication scheme, and gets the expected effect.