Automatic Update Mechanism for Trusted Content Protection
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Solution Overview
Problem
Computing devices, being open platforms, pose a risk to content protection schemes as they can be exploited for unauthorized copying and sharing of digital media, leading to a need for continuous updates to maintain security, which can inadvertently impact innocent users.
Innovation Solution
An automatic update mechanism that determines the level of protection for computer-readable components and updates them to ensure they meet the specified protection level for processed content, minimizing device reboots and maintaining user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protection schemes are continually updated to prevent unauthorized copying, then security is improved, but device reliability and user convenience deteriorate due to necessary reboots and disruptions
Solution Approach 1:
The system performs preliminary actions by downloading and installing protection scheme updates during off-peak times or when the device is in a suspended state, before the actual content processing occurs. This ensures that when content needs to be processed, the updated protection scheme is already in place without requiring disruptive reboots during user operations.
Solution Approach 2:
The protection scheme implementation is made dynamic by allowing the system to adapt between different operational modes (full reboot mode and suspended mode) based on the update requirements and system state. This dynamic approach enables the system to maintain security updates while preserving user convenience by choosing the least disruptive installation method.
2Reliability
If protection schemes require continuous updates to maintain security, then protection level is improved, but device complexity and operational disruptions increase
Solution Approach 1:
The system implements self-service by automatically detecting when protection scheme updates are available and installing them without requiring manual user intervention. The update mechanism autonomously manages the entire process including downloading, validating, and applying updates, thereby reducing the complexity burden on users while maintaining high protection levels.
Solution Approach 2:
The update mechanism incorporates feedback loops where the system continuously monitors the protection scheme version, compares it with the required version for current content, and automatically initiates updates when discrepancies are detected. This feedback-driven approach simplifies the complexity management by automating the decision-making process.
3Reliability
If automatic updates are implemented to maintain protection levels, then security is improved, but loss of time and user disruption increase during update processes
Solution Approach 1:
The system implements periodic action by scheduling updates during off-peak hours, weekends, or when the device is in a suspended state rather than immediately when updates are available. This periodic approach minimizes the impact on user operations and reduces perceived update time while still maintaining continuous security improvement.
Solution Approach 2:
Updates are performed as preliminary actions during low-activity periods or in suspended states, before the user needs to access protected content. This timing strategy reduces the loss of time during critical user operations while ensuring security is maintained.
Data Source
AI summary
The present automatic update mechanism provides a method for determining whether computer-readable components loaded within a memory device are at a level of protection specified for protected content that a media application is attempting to process. If a current level of protection provides lower protection that the level specified, a file is updated to achieve at least the level of protection specified by the protected content. Updating the file to achieve the level of protection is performed in a manner that minimizes rebooting of a computing device.