Multimedia Stream Authentication via Metadata Transcript Signing
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Solution Overview
Problem
Advances in video editing and AI have made it possible to forge media content, making it difficult for users to authenticate the authenticity of multimedia streams, as traditional authentication methods fail to verify the informational integrity of edited or altered media.
Innovation Solution
The method involves generating a metadata transcript of a multimedia stream, digitally signing it, and comparing it with an observed transcript at the recipient device to authenticate the stream, using natural language processing to ensure the information conveyed remains intact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video editing and AI technologies are used to alter media content, then the ease of manufacture and adaptability of media content improve, but the reliability and authenticity of the media stream deteriorate
Solution Approach 1:
The system generates a metadata transcript and digitally signs it before the media content is distributed. This preliminary authentication creates a trusted reference point that can verify the original content's integrity, allowing the content to be adapted and edited while maintaining verifiable authenticity through the pre-established digital signature
Solution Approach 2:
The patent introduces a metadata transcript as an intermediary element between the original media content and the authentication process. This transcript captures essential information about the media stream and serves as a verifiable mediator that can confirm authenticity even when the media content itself is modified, resolving the contradiction between adaptability and reliability
2Measurement precision
If traditional authentication methods are used for multimedia streams, then the device complexity remains low, but the measurement precision of informational integrity deteriorates
Solution Approach 1:
The system extracts essential informational characteristics of the media content into a separate metadata transcript. This extraction allows for precise verification of informational integrity without requiring complex analysis of the entire media stream, reducing device complexity while maintaining high measurement precision through focused verification of the extracted metadata
Solution Approach 2:
The patent replaces traditional mechanical or manual authentication methods with digital signing and cryptographic verification. This substitution enables precise measurement of informational integrity through mathematical verification of digital signatures, achieving high measurement precision with relatively simple implementation that doesn't require complex hardware or manual processes
Data Source
AI summary
The disclosed computer-implemented method for authenticating a multimedia stream may include generating a metadata transcript based on at least a portion of a multimedia stream and digitally signing the metadata transcript. The method may also include transmitting both the digitally signed metadata transcript and the multimedia stream to a recipient device to enable the recipient device to authenticate the multimedia stream. The recipient device may authenticate the multimedia stream based on a comparison of the digitally signed metadata transcript with an observed metadata transcript. The observed metadata transcript may be locally generated by the recipient device based on the multimedia stream. Various other methods, systems, and computer-readable media are also disclosed.