Media Metadata Signatures for Authenticity and Source Tracing
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Solution Overview
Problem
The challenge of determining the authenticity of AI-generated media content is exacerbated by the propagation of error and false information, making it difficult for users to verify the source and integrity of such content.
Innovation Solution
A metadata generation method that includes generating metadata with initial information, a media hash value, and a digital signature to facilitate source tracing and authenticity verification of media content, utilizing hash algorithms and digital signatures to ensure the integrity and authenticity of the media content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If AI generates media content, then content diversity and user preference satisfaction are improved, but authenticity verification difficulty increases
Solution Approach 1:
The patent applies preliminary action by embedding metadata including digital signatures and hash values into media content at the moment of generation or before distribution. This pre-established authentication mechanism allows users to verify authenticity without adding complex verification steps later, thus maintaining content diversity while enabling reliable verification.
Solution Approach 2:
The patent introduces metadata as an intermediary element that carries authentication information (digital signatures, hash values) between the content creator and the verifier. This intermediary structure enables authenticity verification without directly modifying the media content itself, preserving content diversity while providing verification capability.
2Reliability
If metadata is added to media content for verification, then authenticity verification capability is improved, but device complexity increases
Solution Approach 1:
The patent segments the authentication system into distinct metadata fields: initial information, media hash values, and digital signatures. This segmentation allows each component to serve a specific function (identification, integrity verification, authenticity verification) independently, making the overall system more manageable and less complex than a monolithic authentication structure.
Solution Approach 2:
The patent creates a universal metadata structure that can be applied to various types of media content (images, videos, audio) and different verification scenarios. This multi-functional metadata design eliminates the need for separate verification systems for different content types, reducing overall device complexity while maintaining comprehensive verification capability.
Data Source
AI summary
Embodiments of this application provide a metadata generation method, a verification method, and an electronic device. The metadata generation method includes obtaining first media content, and then generating metadata of the first media content, where the metadata of the first media content includes initial information of the first media content, a first media hash value, and a first digital signature. The first media hash value may be used to verify whether metadata is the metadata of the first media content. The initial information may be used for initial identity certification of the first media content, and may serve as a one-dimension certificate of authenticity of the first media content. The first digital signature may be used to verify whether the initial information and the first media hash value are tampered with. In this way, the metadata may be used for source tracing of the first media content.