CGAN BeiDou Satellite Short-Message-Encryption Scheme Using Ship PVT

The transmission standard and format of short-message communication in the BeiDou satellite-navigation-system are open, civilian channel adopts a direct-transmission plaintext mechanism, content short messages is at risk data leaks. Aiming addressing problem safely transmitting messages, this study proposes CGAN satellite short-message-encryption scheme, using ship PVT (position, speed, time). Various commands with position, or time employed as input. two communicating parties use (conditional generative adversarial network) confrontation mechanism to encrypt decrypt ship-PVT information generate symmetrically encrypted key, while receiver parses only sender within specified PVT-range. Additionally, because system has positioning error delay, considering mobility, concept dynamic tolerance region introduced receiver, improve scheme’s decryption success-rate. Finally, proposed scheme verified, simulation experiments. algorithm achieves good security, acceptable efficiency. Furthermore, experimental platform built by used prove feasibility applied encryption decryption.