Secure Data Transfer via Status Control and Copy Deletion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing digital rights management (DRM) systems fail to prevent unauthorized copying and distribution of digital content when security data is transferred between apparatuses, particularly due to communication errors or intentional separation of secure multimedia cards, leading to illegal copies.
Innovation Solution
An apparatus and method that sets security data to a disabled state, creates a copy, transmits the copy to another apparatus, and deletes the original data upon successful transmission, ensuring the copy's status is updated to an enabled state upon receipt, thereby preventing unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If security data is copied and transmitted to another apparatus, then the security data can be moved to the second apparatus, but unauthorized copies may be created if communication errors occur or the secure multimedia card is intentionally separated
Solution Approach 1:
The patent applies preliminary action by setting the status information of security data to disabled state before transmission. This pre-configured disabled status ensures that even if communication errors occur or the secure multimedia card is intentionally separated during transmission, the copied data cannot be used unauthorizedly. The disabled status is established in advance as a protective measure against potential copying issues.
Solution Approach 2:
The patent changes the status parameter of security data from enabled to disabled state during the copying and transmission process. This parameter change (status information) controls the usability of the security data, allowing it to be copied for transmission while preventing unauthorized use. After successful transmission, the status is updated to enabled state in the destination apparatus, achieving secure data movement with copy prevention.
2Reliability
If the original security data is deleted after copying, then unauthorized use from the source is prevented, but data loss occurs if transmission fails
Solution Approach 1:
The patent implements feedback by monitoring the transmission status and using this information to control data deletion. The system receives feedback about whether the copy was successfully transmitted, and based on this feedback, it decides whether to delete the original security data. If transmission succeeds, the original is deleted; if it fails, the original remains, preventing data loss while maintaining copy prevention through the disabled status mechanism.
3Reliability
If status information is set to disabled state before transmission, then illegal copies are prevented, but the security data cannot be used during transmission
Solution Approach 1:
The patent applies segmentation by separating the security data into two distinct locations with different status settings: the original data in the source apparatus with disabled status for prevention, and the copied data in the destination apparatus with enabled status for usability. This spatial segmentation allows the system to simultaneously achieve copy prevention at the source and data usability at the destination, resolving the contradiction between these two requirements.
Data Source
AI summary
Provided is an apparatus and method of securely moving security data. An apparatus for securely moving security stored in a first apparatus to a second apparatus, includes a status setting unit which set status information of the security data to a disabled state; a data providing unit which creates a copy of the security data and determines whether the created copy can be transmitted to the second apparatus; and a data deleting unit which deletes the security data when the copy is completely transmitted.