INFORMATION DISTRIBUTION SYSTEM, AND SERVER, ON-BOARD TERMINAL AND COMMUNICATION TERMINAL USED THEREFOR

摘要

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.

主权项

1. An information distribution system including a communication terminal, an on-board terminal which can be connected to the communication terminal by wire or wireless, and a server, wherein:
the on-board terminal is provided with: an on-board terminal identification information storage section for storing terminal identification information inherent to the on-board terminal, an authentication information generation section for generating the on-board terminal authentication information including the terminal identification information stored in the on-board terminal identification information storage section, and an inter-terminal equipment communication section for transmitting the authentication information generated by the authentication information generation section to the communication terminal, the communication terminal is provided with: an inter-equipment communication section which can be connected to the on-board terminal by wire or wireless, a storage section for storing the on-board terminal authentication information received by the inter-equipment communication section, and a server communication section which can transmit the on-board terminal authentication information stored in the storage section to the server, the server is provided with: a terminal communication section for receiving the on-board terminal authentication information from the communication terminal, an authentication information verification processing section for authenticating the on-board terminal authentication information received by the terminal communication section, a last authentication timestamp storage section for storing the timestamp when authentication is success by the authentication information verification processing section, and an authentication information management section for storing the timestamp, when the authentication is success by the authentication information verification processing section, into the last authentication timestamp storage section, and the server, when it receives the on-board terminal authentication information from the communication terminal, authenticates the on-board terminal authentication information using a timestamp when the on-board terminal authentication information is authenticated by the authentication information verification processing section, and a timestamp stored in the last authentication timestamp storage section.