Unified Access Control via Virtual Card Data Extraction
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Solution Overview
Problem
Existing access control systems cannot seamlessly integrate physical key cards with mobile devices, leading to synchronization issues and lack of unified audit trails, as they use separate methods for indicating access rights.
Innovation Solution
An access control system that generates encrypted mobile credentials, allowing a mobile device to communicate with a credential service and extract virtual card data for operating access controls, which can be used in conjunction with physical key cards, providing a unified audit trail and offline operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate methods are used for indicating access rights on physical key cards and mobile devices, then both systems can operate independently, but synchronization issues occur and unified audit trails cannot be generated
Solution Approach 1:
The patent combines physical key card data and mobile device virtual card data into a unified access control system. Both physical and virtual cards use the same data structure and encoding methods, allowing them to be treated as equivalent access credentials. This merging enables the system to generate unified audit trails that track both physical and virtual card usage without synchronization issues.
Solution Approach 2:
The access control system is designed to universally accept both physical key cards and mobile virtual cards using identical data formats. The system can read and process access rights from either card type through the same interface, making the system multi-functional and eliminating the need for separate processing paths that would cause synchronization problems.
2Adaptability or versatility
If virtual card data is extracted from encrypted mobile credentials, then seamless integration with physical key cards is achieved, but additional processing steps are required
Solution Approach 1:
The patent extracts virtual card data from encrypted mobile credentials through a dedicated credential module. This extraction process retrieves the access rights data in the same format as physical key cards, enabling seamless integration. The extracted data is then processed identically to physical card data, maintaining system consistency despite the additional decryption step.
3Ease of operation
If offline access control is implemented with virtual cards, then independence from online systems is achieved, but encryption and validation mechanisms add complexity
Solution Approach 1:
The system performs preliminary encryption of access rights data before storing it in both physical key cards and mobile virtual cards. Validation mechanisms including digital signatures and expiration date checks are pre-configured in the credentials. This preliminary action enables offline operation because all necessary validation data is embedded in the credentials themselves, eliminating the need for real-time online verification while maintaining security.
Data Source
AI summary
An access control system includes a mobile library on a mobile device operable to communicate with the credential service, the mobile library operable to receive the credential from the credential service and a credential module for an access control, the credential module operable to receive virtual card data from the credential, the virtual card data usable to operate the access control.