V2X Service Platform Key Management for Secure Communication
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Solution Overview
Problem
Current vehicle-to-everything (V2X) communication systems lack effective solutions for ensuring the security of one-to-many communication between dynamically changing vehicle-to-everything terminals, which is crucial for maintaining safety and continuity in V2X communication.
Innovation Solution
A method and apparatus for secure communication between V2X terminals involve a V2X service platform that generates and manages unique communication keys for each terminal, allowing registered terminals to encrypt and decrypt messages, ensuring secure communication by using these keys for encryption and decryption processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional V2X communication is used without effective security mechanisms, then communication flexibility and dynamic terminal participation are maintained, but communication security and integrity deteriorate
Solution Approach 1:
The patent introduces a V2X service platform as an intermediary that manages security credentials and communication keys for all terminals. This mediator handles the complex security operations centrally, allowing individual terminals to participate dynamically without carrying complex local security management systems, thus improving communication security while maintaining terminal simplicity.
Solution Approach 2:
The patent implements preliminary registration and credential provisioning at the V2X service platform before terminals engage in communication. Terminals obtain their security credentials and communication keys in advance through registration, enabling secure communication without requiring complex real-time security negotiations, thereby resolving the contradiction between security reliability and system complexity.
2Adaptability or versatility
If dynamic terminal participation is enabled in V2X communication, then communication adaptability improves, but security management capability deteriorates
Solution Approach 1:
The V2X service platform acts as a mediator that handles security credential distribution to dynamically joining terminals. When terminals join or leave the network, the platform manages their registration, authentication, and credential provisioning without requiring existing terminals to perform complex security verification, thus maintaining both adaptability and security assurance.
Solution Approach 2:
The patent creates a universal security management system at the V2X service platform that serves all terminals regardless of their dynamic entry or exit from the network. This universal platform handles authentication, credential distribution, and key management for all terminals uniformly, enabling flexible terminal participation while maintaining consistent security assurance across the entire V2X communication system.
3Productivity
If one-to-many communication is implemented without effective security mechanisms, then communication efficiency improves, but information security deteriorates
Solution Approach 1:
The patent merges security operations for one-to-many communication into a unified approach where the transmitting terminal obtains a single communication key from the V2X service platform and applies it to encrypt broadcasts to multiple receivers. This eliminates the need for separate security negotiations with each receiver, maintaining communication efficiency while ensuring that all received information is securely protected through the unified key management system.
Data Source
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AI summary
Disclosed are a method and apparatus for secure communication between vehicle-to-everything (V2X) terminals. The method may comprises: a second V2X terminal receives a first message from a first V2X terminal, the first message being encrypted by means of a V2X communication key of the first V2X terminal; the second V2X terminal obtains from the first message a terminal identifier and/or a service identifier of the first V2X terminal by means of parsing, and obtains the V2X communication key of the first V2X terminal from a V2X service platform according to the terminal identifier and/or the service identifier of the first V2X terminal; the second V2X terminal decrypts and parses the first message by means of the V2X communication key of the first V2X terminal to obtain the content of the first message, the V2X communication key being generated by the V2X service platform, stored corresponding to the terminal identifier and the service identifier of the first V2X terminal, and used for communication between the first V2X terminal and other V2X terminals. By means of the disclosed method and apparatus, secure and effective communication between V2X terminals is achieved.