Secure Element Backup and Restoration via Trusted Service Manager
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Solution Overview
Problem
Existing methods for mobile payment services lack a technique for safely backing up and restoring secure information stored in Secure Elements (SE) when terminals or SEs are replaced or updated, leading to inconvenience and potential data loss.
Innovation Solution
A method and system for identifying secure information, generating backup data, transmitting it securely to a Trusted Service Manager (TSM) server, and restoring it to the original or another terminal, utilizing secure channels and encryption to manage and integrate card information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If secure information is stored in SE for mobile payment service, then security is improved, but data loss occurs when terminal or SE is replaced
Solution Approach 1:
The patent performs backup of secure information from the SE to the TSM server before terminal or SE replacement occurs. This preliminary action ensures that even if the original SE is lost or replaced, the secure information can be restored from the backup stored on the TSM server, thus preventing data loss while maintaining security through encrypted transmission and storage.
2Reliability
If backup data is transmitted to TSM server, then data safety is improved, but transmission security may be compromised
Solution Approach 1:
The patent creates a secure transmission environment by establishing a trusted communication channel between the SE and TSM server. This 'inert atmosphere' protects the backup data during transmission from external security threats such as eavesdropping or tampering, allowing safe data transfer while maintaining transmission security through encryption and authentication mechanisms.
3Ease of repair
If secure information is backed up to external server, then data recovery is improved, but security risk increases
Solution Approach 1:
The patent introduces the TSM server as a trusted intermediary between the SE and external storage. The TSM server acts as a secure mediator that receives, stores, and manages backup data with appropriate security controls. This intermediary approach enables data recovery functionality while mitigating security risks by using a dedicated trusted service manager rather than direct external storage.
4Adaptability or versatility
If multiple card information are integrated in SE, then functionality is improved, but management complexity increases
Solution Approach 1:
The patent extracts the management complexity of multiple card information from the SE by backing up and storing card data on the TSM server. The SE retains only essential secure elements, while the TSM server manages the complete card information portfolio. This extraction reduces management complexity at the SE level while maintaining full functionality through centralized card information management.
Data Source
AI summary
A method for managing a secure element (SE) is disclosed. The method for managing the SE includes identifying secure information stored in the SE, sending a command to request to set suspension of use of a means of payment included in the secure information stored in the SE to a secure server, generating backup data using at least part of the identified secure information, transmitting the backup data from the SE to the secure server through a secure channel set between the secure server and the SE and storing the backup data, transmitting a restoration command on the secure information to the secure server, and restoring the backup data of the secure server to the SE or another SE.