Vehicle Security Token Authentication via Server Intermediary
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Solution Overview
Problem
Existing vehicle security systems lack effective measures to enhance security when accessing vehicle functions, such as starting or stopping the air conditioner or unlocking doors, through communication from terminal devices like smartphones, which can lead to potential unauthorized access.
Innovation Solution
A vehicle security system comprising a terminal device, a server device, and a vehicle, where the terminal device acquires and transmits a token and identification information to the server, which then authenticates and stores this information for secure communication, ensuring that only authorized access is granted by matching tokens and identification between the terminal, server, and vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If communication from terminal device to vehicle is enabled for remote operations (air conditioner control, door unlocking, etc.), then convenience and accessibility are improved, but security against unauthorized access deteriorates
Solution Approach 1:
The system performs preliminary authentication by comparing tokens before allowing any remote operations. The terminal device acquires a token from the vehicle, transmits it to the server, and the server verifies it against the registered token in the database. Only after successful token verification is the terminal device authorized to communicate with the vehicle, preventing unauthorized access while enabling convenient remote operations.
2Reliability
If token-based authentication system is implemented, then security is improved, but system complexity increases
Solution Approach 1:
The server acts as an intermediary between the terminal device and the vehicle. It manages the token verification process by receiving tokens from terminal devices, comparing them against registered tokens in the database, and determining authentication results. This intermediary approach centralizes security management, making the system more secure while keeping the vehicle and terminal device relatively simple.
Data Source
AI summary
A vehicle security system includes a terminal device, a server device, and a vehicle. The terminal device includes a token acquisition unit and a terminal communication unit configured to transmit the token, terminal identification information, and vehicle identification information to the server device. The server device includes a server communication unit, a server determination unit configured to determine that authentication has succeeded, and a server storage unit configured to store the terminal identification information and the vehicle identification information received from an authenticated terminal device in association. The server communication unit transmits the token and the terminal identification information to the vehicle of the vehicle identification information. The vehicle includes a vehicle communication unit, a vehicle determination unit configured to determine that authentication has succeeded, and a vehicle storage unit configured to store the received terminal identification information in association with the token of authentication success.