Media File Verification via Multi-Database Hash Comparison
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies lack an effective method to verify the authenticity and integrity of media files, particularly in cases where they may be tampered with or altered, which can lead to erroneous decisions in legal or surveillance contexts.
Innovation Solution
An electronic device and method for media file verification that compares first information associated with a media file from multiple databases with each other and with second information determined from the media file itself, to determine if the media file has been altered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If media files are stored in multiple databases for verification, then the reliability of authenticity determination is improved, but the device complexity and data management burden increase
Solution Approach 1:
The verification system segments the media file information into two distinct types: first information (metadata, hash values, timestamps) stored in multiple databases, and second information (actual media content) stored locally. This segmentation allows the system to leverage multiple databases for reliability while keeping the verification process manageable by clearly defining what each database component should contain and how they should be used together.
Solution Approach 2:
The system performs preliminary actions by pre-storing first information about media files in multiple databases before verification is needed. This includes pre-computing hash values, storing metadata, and maintaining timestamps in advance. When verification is required, the system simply retrieves and compares these pre-stored values against the current media file, significantly simplifying the actual verification process while maintaining high reliability.
2Measurement precision
If multiple databases are queried for verification, then the measurement precision of file integrity is improved, but the loss of time increases
Solution Approach 1:
The system extracts only the critical verification elements (first information such as hash values, metadata, and timestamps) from the multiple databases and compares them directly against the second information (current media file). This extraction approach allows the system to query multiple databases for precision without requiring complex cross-database operations, significantly reducing verification time while maintaining high measurement precision through the use of these extracted key verification parameters.
3Reliability
If comprehensive information is stored in databases, then the reliability of verification is improved, but the quantity of data stored increases
Solution Approach 1:
Instead of storing complete media files in multiple databases, the system creates and stores simplified copies in the form of first information - specifically hash values, metadata, and timestamps. These compact representations serve as verification copies that can be quickly compared against current media files. This copying approach maintains verification reliability by preserving the essential verification characteristics while dramatically reducing the quantity of data that needs to be stored and managed across multiple databases.
Data Source
AI summary
An electronic device and a method for implementation for media file verification are disclosed. The electronic device receives first information associated with a first media file from each database of a plurality of databases. Each database of the plurality of databases is associated with a separate entity. The electronic device receives a second media file corresponding to the first media file. The electronic device determines a second information associated with the received second media file. The electronic device compares the first information received from each of the plurality of databases with one another. The electronic device determines the received first information as unaltered based on the comparison. The electronic device compares the first information and the second information. The electronic device determines the received second media file as unaltered. The electronic device renders verification information.