Management Server Time Limit Certificate Collation
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Solution Overview
Problem
Existing systems struggle to securely track the use relation between a first target and a second target, particularly in scenarios involving diverse Mobility as a Service (MaaS) applications, where actual usage may not match reserved or contracted times, and usage information is not generated for non-reserved vehicle use.
Innovation Solution
A management system comprising a first server, a second server, and a management server, which issues time limit certificates for both targets and collates these certificates to set a correspondence relation between the targets when a use relation occurs, ensuring security by expiring the certificates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time limit certificates are issued and collated to track use relations, then security is improved, but device complexity increases
Solution Approach 1:
The system divides the tracking function into multiple independent servers (first server, second server, management server), each handling specific certificate issuance and collation tasks. This segmentation improves security through distributed verification while managing complexity by assigning specific roles to each server component.
Solution Approach 2:
Time limit certificates act as intermediary elements between the first target and second target, enabling secure tracking of use relations without requiring direct complex verification between the targets themselves. The certificates serve as mediators that simplify the security verification process.
2Reliability
If certificates expire after a time limit, then security is improved by preventing permanent usage, but loss of information occurs when usage data is no longer available
Solution Approach 1:
The management server collates and stores usage information between targets before the time limit certificates expire. This preliminary recording ensures that usage data is preserved for billing and tracking purposes, while the certificates themselves expire to maintain security and prevent permanent unauthorized use.
Data Source
AI summary
A management server according to an aspect of the present disclosure receives a first certificate and a second certificate from a terminal according to a use relation occurring between a first target and a second target and receives a first time limit certificate and a second time limit certificate from a server. The management server performs collation of the first certificate and the first time limit certificate and collation of the second certificate and the second time limit certificate to authenticate the targets. When both of the authentications of the first target and the second target are successful, the management server sets a correspondence relation between a first identifier and a second identifier.