Offline Mobile Authentication for Secure Calibration Data Transfer
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Solution Overview
Problem
Existing calibration systems lack user authentication capabilities for offline mobile devices, leading to insecure data transfer and complex procedures when data is transferred from field devices to a central system.
Innovation Solution
Implement user authentication on offline mobile devices using Windows login credentials, requiring users to provide a separate 'Mobile Device password' for access, ensuring secure data transfer and authentication before and after calibration tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user authentication is implemented on offline mobile devices, then data security and system integrity are improved, but device complexity and operational difficulty increase
Solution Approach 1:
The patent introduces a portable authentication medium (such as a USB token or smart card) as an intermediary carrier that stores authentication credentials. This medium serves as a bridge between the offline mobile device and the authentication system, allowing secure authentication without requiring complex online verification infrastructure. The authentication credentials are transferred to or stored on this portable medium, which then facilitates authentication on offline devices while maintaining security.
Solution Approach 2:
The system performs preliminary authentication actions by pre-configuring authentication credentials on portable media before offline operation. Users authenticate themselves in advance by obtaining configured authentication tokens or credentials that can be used later when offline. This preliminary setup eliminates the need for complex real-time authentication infrastructure during offline operations.
2Reliability
If separate mobile device password is required for offline authentication, then data integrity is improved, but ease of operation deteriorates
Solution Approach 1:
The patent merges the authentication credential storage and verification functions into a unified portable authentication medium. Instead of requiring separate password management systems, the authentication credentials are combined into a single portable token or smart card that users carry. This consolidation simplifies the user experience while maintaining strong authentication security, as the combined credential system replaces multiple separate authentication mechanisms.
3Reliability
If offline devices are integrated into closed system with authentication, then system security is improved, but device complexity and procedural complexity increase
Solution Approach 1:
The patent extracts the authentication verification function from the central online server and places it on portable authentication media that can operate independently offline. By taking out the essential authentication capability from the centralized system and embedding it in portable tokens, the system enables offline devices to authenticate themselves without requiring continuous connection to the central server, thus reducing system integration complexity while maintaining security.
4Adaptability or versatility
If authentication credentials are stored on portable media, then offline authentication capability is improved, but risk of credential loss or theft increases
Solution Approach 1:
The patent employs physically secure portable media such as USB tokens or smart cards that incorporate hardware-based security protections. These portable authentication mediums use secure embedded storage and cryptographic protection mechanisms that make credential extraction or unauthorized access difficult. The physical form factor and embedded security features of these portable devices provide protection against credential loss or theft while maintaining offline authentication capability.
Data Source
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AI summary
The present invention discloses a method and a system for user authentication in an offline mobile calibration or checklist performing device. At first, the work is assigned (301) online in a Calibration Management Software (CMS), where the relevant data is selected and sent to a mobile device. In the field environment as offline, the mobile device requests user credentials from the user, and if valid, the user is able to perform the assigned task (302). With each obtained result, credentials are asked for saving the results into the mobile device. When the user returns from the field, he/she connects the mobile device with the CMS, and transfers the obtained work data from the mobile device to the CMS (303).