Vehicle Authentication Management for Invalid Request Response
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Solution Overview
Problem
Existing vehicle authentication systems are vulnerable to attacks from malicious third parties impersonating legitimate users, particularly in networks with diverse authentication methods, where locking the authentication method may not be sufficient to protect device operations and information.
Innovation Solution
An authentication management device and method that includes an authenticator, manager, and verifier units to check and manage user authentication and operation authorization, with a verifier unit verifying the validity of operation requests and a manager unit changing authentication or authorization information for invalid requests, employing various verification and changing methods to counteract unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods are used in vehicle networks, then ease of operation is maintained, but security against malicious third parties deteriorates
Solution Approach 1:
The authentication management function is segmented into distinct units: an authenticator unit for checking authentication status, a manager unit for managing authentication and authorization information, and a verifier unit for verifying operation request validity. This segmentation allows each unit to specialize in specific security tasks, improving overall security reliability while maintaining manageable complexity through clear functional separation.
Solution Approach 2:
The manager unit acts as an intermediary between the authenticator unit and the functional units. It manages authentication information and authorization information, coordinating the security verification process. This intermediary role centralizes security management, improving reliability without requiring each functional unit to implement complex authentication logic independently.
2Reliability
If authentication status is checked for every operation request, then security is improved, but processing time increases
Solution Approach 1:
The manager unit performs preliminary authentication status checking and maintains authentication information before operation requests are processed. By pre-establishing and managing authentication states, the system avoids redundant verification steps during actual operation requests, reducing processing time while maintaining security.
Solution Approach 2:
The verifier unit provides feedback on the validity of operation requests to the manager unit. This feedback mechanism allows the system to quickly determine whether further authentication verification is needed, enabling efficient processing by avoiding unnecessary verification steps for valid requests while maintaining security checks for suspicious requests.
3Reliability
If authorization information is managed centrally, then security control is improved, but system complexity increases
Solution Approach 1:
The manager unit serves multiple functions: managing authentication information, managing authorization information, and coordinating verification processes. By consolidating these related security management functions into a single multi-functional unit, the system improves centralized authorization control without proportionally increasing overall system complexity.
Data Source
AI summary
An authentication management device includes an authenticator unit, a manager unit, and a verifier unit. The authenticator unit is configured to check an authentication status of a user of a vehicle and an authorization status of an operation related to the vehicle based on an authentication information of the user and an authorization information of the operation in response to an operation request given by the user, and transmit the operation request to a functional unit configured to realize the operation upon confirming that the user has been authenticated and the operation has been authorized. The verifier unit is configured notify the manager unit of a receipt of an invalid request upon determining that the operation request is invalid. Upon being notified of the receipt of the invalid request, the manager unit changes at least one of the authentication information or the authorization information corresponding to an invalid requester user.