Information distribution system, and server, on-board terminal and communication terminal used therefor

• Main Authors: Sawajiri Haruhiko, Shimizu Atsushi, Matsumoto Takashi, Kojima Susumu, Endo Hiroyoshi
• Format: Patent
• Language: English
• Published: 26.12.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Inherent terminal identification information and a terminal unique key are stored in an on-board terminal, and server-side terminal identification information and a server-side terminal unique key, which are same information as the above terminal identification information and terminal unique key are stored in a server. And, the on-board terminal transmits the terminal identification information to the server via a communication terminal, and the server performs terminal authentication according to the server-side terminal identification information, and if the authentication is success, transmits encrypted software for the on-board terminal of which authentication was success to the communication terminal. The communication terminal transmits the encrypted software to the on-board terminal, and the on-board terminal obtains a software unique key, which is encrypted by the server-side terminal unique key by the server, via the communication terminal, decrypts the encrypted software using the software unique key, and installs it.