V2X Enrollment Certificate Authority Load Reduction via Intermediary Server
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current security credential management systems for V2X communication face challenges in efficiently managing enrollment certificates, leading to increased load on enrollment certificate authorities and potential security vulnerabilities due to direct communication between device configuration managers and enrollment certificate authorities, which exposes access information and lacks efficient data transmission and storage mechanisms.
Innovation Solution
A method and apparatus that relay between an enrollment certificate authority and a device configuration manager, involving verification of device certification data, secure transmission of certificate signing requests, and batching of response data for efficient management and storage of enrollment certificates, using infrastructure certificates for secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If direct communication is established between device configuration manager and enrollment certificate authority, then certificate issuance can proceed, but security is compromised due to exposure of access information
Solution Approach 1:
The patent introduces a certificate management server as an intermediary component between the device configuration manager and the enrollment certificate authority. This server receives certificate issuance requests from the device configuration manager, verifies device certification data, and communicates with the enrollment certificate authority on behalf of the device. This intermediary architecture protects the security of the enrollment certificate authority while maintaining efficient certificate issuance operations.
2Productivity
If enrollment certificate authority directly handles all certificate requests, then certificate issuance is straightforward, but the load on the authority increases significantly
Solution Approach 1:
The patent segments the certificate management functionality by introducing a certificate management server that handles preliminary verification and processing of certificate requests. This server filters and prepares requests before forwarding them to the enrollment certificate authority, thereby distributing the workload and reducing the direct burden on the authority while maintaining efficient certificate issuance processing.
3Productivity
If device certification data is not verified before certificate issuance, then the process is faster, but security vulnerabilities increase
Solution Approach 1:
The patent implements preliminary verification of device certification data by the certificate management server before the actual certificate issuance process. The server checks whether the device meets certification requirements and verifies device identification information in advance, ensuring security is maintained while enabling efficient subsequent certificate processing without repeated verification steps.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method for managing an enrollment certificate in an SCMS for V2X communication may comprise receiving a message requesting an authority for generating a CSR from a DCM; updating device certification data through a certification laboratory that manages performance and requirements of an EE, and verifying the EE that requested issuance of an enrollment certificate to the DCM by using the updated device certification data; transmitting response data indicating the authority for generating a CSR to the DCM based on a result of the verification; receiving a CSR generated according to the response data from the DCM; and verifying the received CSR, and requesting response data for the CSR to an ECA based on a result of the verification.