V2X Message Verification Dispatch Between Processor and HSM Queues
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Solution Overview
Problem
The verification process for messages in vehicle-to-everything (V2X) systems is compute-intensive, leading to bottlenecks that slow down message transmission and reduce the efficiency of communication networks.
Innovation Solution
Implementing a smart dispatcher that distributes messages between verification logic software and hardware based on criteria such as load, priority, and type, allowing the processor to offload verification tasks to hardware when necessary, thereby expanding the system's capacity and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If verification logic is offloaded to dedicated hardware, then verification reliability is improved, but device complexity and transmission speed are worsened due to bottlenecks
Solution Approach 1:
The verification logic is segmented into two distinct components: verification logic software running on the local processor and verification logic hardware (HSM) for cryptographic operations. This segmentation allows the system to distribute verification tasks appropriately, with the processor handling message reception and initial processing, while the HSM handles computationally intensive cryptographic verification, thereby improving both reliability and speed
Solution Approach 2:
A queue mechanism is introduced as an intermediary between the processor and the HSM. The queue buffers verification requests and coordinates the interaction between the software component and hardware component, enabling efficient task distribution and preventing bottlenecks by managing the flow of verification requests dynamically
2Device complexity
If verification logic is executed on local processor, then device complexity is reduced, but productivity is worsened due to compute-intensive bottlenecks
Solution Approach 1:
The computationally intensive cryptographic verification functions are extracted from the local processor and implemented in dedicated hardware (HSM). This extraction removes the productivity bottleneck from the processor while maintaining relatively simple system architecture, as the HSM is a specialized component designed for high-speed cryptographic operations
Solution Approach 2:
The system dynamically distributes verification tasks between the processor and HSM based on message type and system state. The smart dispatcher dynamically routes verification requests to the most appropriate component, optimizing throughput by utilizing the HSM for complex cryptographic verifications while keeping the processor available for other tasks
3Measurement precision
If all messages are verified through dedicated hardware, then verification precision is improved, but loss of time increases due to processing delays
Solution Approach 1:
The system applies partial verification action by using the queue mechanism to manage verification requests. Not all messages require immediate hardware verification - the queue allows the system to prioritize critical messages for HSM verification while managing less urgent messages efficiently, thereby maintaining verification accuracy for important messages while reducing overall latency through intelligent task scheduling
Data Source
AI summary
Methods and systems are proposed for a communication network. In one example, a system comprises a wireless communication network comprising a verification logic hardware. The system further comprises a processor of a vehicle communicatively coupled to the verification logic hardware, wherein the processor comprises instructions stored on non-transitory memory thereof that when executed enable the processor to determine a message type of a message, and distribute the message to a first queue of a verification logic software of the processor or to a second queue of the verification logic hardware.