Secure Bluetooth Pairing via Inverse Certificate Exchange
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Solution Overview
Problem
Existing Bluetooth communication systems between vehicle terminals and user terminals lack secure authentication mechanisms, which is essential for ensuring the integrity and privacy of data exchanged, such as personal information and customized services in vehicles.
Innovation Solution
A method and apparatus for secure Bluetooth communication involving a vehicle terminal, an authority server, and a user terminal, where inverse certificates are exchanged and validated through an authority server to establish secure pairing and communication, using encryption with public and private keys to secure the transmission of messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth communication is established between vehicle terminal and user terminal, then convenience and functionality are improved, but security and authentication reliability deteriorate
Solution Approach 1:
The patent applies preliminary action by performing certificate validation and authentication checks before establishing Bluetooth communication. The vehicle terminal validates the user terminal's certificate and exchanges inverse certificates prior to pairing, ensuring security is established in advance rather than during communication, thus resolving the contradiction between communication convenience and authentication security.
2Reliability
If certificate validation and inverse certificate exchange are implemented, then authentication security is improved, but device complexity and communication overhead increase
Solution Approach 1:
The patent uses an authority server as an intermediary to manage certificate issuance and validation. Instead of implementing complex mutual authentication protocols directly between vehicle and user terminals, the authority server mediates the authentication process by issuing inverse certificates and validating identities, thereby reducing the communication protocol complexity while maintaining high authentication security.
3Reliability
If inverse certificates are exchanged through authority server, then authentication reliability is improved, but communication time and processing duration increase
Solution Approach 1:
The patent reduces communication time by performing certificate validation and inverse certificate exchange as preliminary actions during the initial pairing phase. Once authentication is established through these preliminary steps, subsequent Bluetooth communications can proceed without repeated authentication overhead, thus resolving the contradiction between authentication reliability and communication time efficiency.
Data Source
AI summary
A method for performing secure Bluetooth communication between a vehicle terminal and a user terminal is provided. The method includes: transmitting a user terminal inverse certificate request message to an authority server; receiving a message from the authority server in response to the transmission of the user terminal inverse certificate request message; obtaining a user terminal inverse certificate from the message received from the authority server; receiving a vehicle terminal inverse certificate from the user terminal in exchange for the user terminal inverse certificate; validating the vehicle terminal inverse certificate; pairing with the user terminal when the vehicle terminal inverse certificate is validated; and performing Bluetooth communication with the paired user terminal.