V2X Unicast Security Signaling Across Protocol Layers
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Solution Overview
Problem
Current V2X communication security mechanisms are inadequate for unicast services, leading to information leakage risks due to their broadcast service-specific nature, compromising security and reliability in end-to-end communication.
Innovation Solution
Implementing a communication method that allows devices to perform security processing on service data using different security mechanisms and protocol layers, indicated through specific indication information, ensuring compatibility and secure communication between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the current V2X security mechanism (designed for broadcast service) is used to perform security processing on unicast service data, then the device can maintain a simple security processing approach, but information leakage risk increases and security deteriorates
Solution Approach 1:
The patent segments the security processing approach by introducing indication information that specifies different security mechanisms for different service types. Broadcast services use one security mechanism while unicast services use another, dividing the previously unified security processing into distinct segments based on service type requirements.
Solution Approach 2:
The patent applies local quality by making the security mechanism adaptable to the specific service type. The indication information enables the receiving device to select the appropriate security processing method (broadcast-specific or unicast-specific) based on the service type indicated in the received data, ensuring each service receives locally optimized security treatment.
2Reliability
If different security mechanisms are used for different service types, then security and reliability improve, but device complexity increases
Solution Approach 1:
The patent implements universality by designing a unified security processing framework that handles multiple service types through a single indication information field. The same general security processing structure accommodates both broadcast and unicast services, with the indication information directing the appropriate mechanism selection, thereby avoiding the need for entirely separate security systems.
Solution Approach 2:
The indication information acts as an intermediary that bridges the gap between different service types and their corresponding security mechanisms. It carries the service type identification that enables the receiving device to select the appropriate security processing method without requiring complex pre-configuration or multiple independent security systems.
3Ease of operation
If broadcast-specific security mechanism is used for unicast service, then ease of operation is maintained, but information leakage risk increases
Solution Approach 1:
The patent introduces dynamics by making the security processing method adaptable rather than static. The indication information enables the security mechanism to dynamically adjust based on the service type, allowing the system to automatically select between broadcast-specific and unicast-specific security processing without manual intervention or complex configuration.
Data Source
AI summary
This application provides example communication methods, apparatuses, and devices, which may be applied to the internet of vehicles. In an example communication method, a first device obtains service data, and performs security processing on the service data. The first device sends service data and indication information to a second device. The indication information indicates a security mechanism used to perform the security processing on the service data or indicates a protocol layer used to perform the security processing on the service data.