In-band Metadata for Video Stream Authentication
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Solution Overview
Problem
Existing video streaming services face challenges in authenticating video streams and controlling access due to the threat of deep fake videos, which can compromise trust and security.
Innovation Solution
The implementation of in-band metadata within video frames, using steganographic techniques to embed digital signatures and role-based access information, allows for real-time authentication and access control of video streams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If end-to-end encryption techniques are used to protect video streams, then security against deep fake insertion is improved, but system complexity increases due to exterior key management and additional protocol definitions
Solution Approach 1:
The patent combines authentication and access control metadata directly into the video stream payload rather than using separate external protocols. The in-band metadata approach merges security functions with the video data transmission, eliminating the need for exterior key management systems and additional protocol definitions while maintaining security against deep fake insertion.
2Productivity
If in-band metadata is embedded directly into video frames, then authentication and access control efficiency are improved, but video frame integrity may be compromised
Solution Approach 1:
The patent embeds metadata in specific localized regions of video frames rather than modifying the entire frame structure. By placing authentication and access control data in designated metadata segments within frames, the system achieves efficient real-time authentication while preserving the overall integrity and quality of the video content.
3Reliability
If digital signatures are embedded in every video frame, then authentication reliability is improved, but bandwidth consumption increases
Solution Approach 1:
The patent segments authentication metadata into compact formats that are embedded efficiently within video frames. By optimizing the structure and size of digital signature data segments, the system maintains high authentication reliability while minimizing the additional bandwidth consumption associated with embedding authentication data in every frame.
Data Source
AI summary
A device receives a video stream, where one or more frames of the video stream include embedded metadata that is embedded directly into the one or more frames. The device extracts the embedded metadata from the one or more frames. The device makes an authentication determination regarding the video stream, based on whether the embedded metadata includes a digital signature associated with a sender of the video stream. The device controls, based on the authentication determination, presentation of the video stream to a recipient user.