3D Media Asset Access Control via Attribute Segmentation
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Solution Overview
Problem
Current technologies face challenges in securely managing and controlling access to 3D volumetric media assets, particularly in environments requiring low latency, such as metaverse applications. Existing methods like brute force end-to-end encryption are computationally intensive and impractical for real-time interactive applications.
Innovation Solution
A system that identifies attributes of entities in 3D media assets, generates modified versions by altering these attributes, and transmits instructions to client devices on how to process the modified assets to reconstruct the original, while implementing policies to control access and confidentiality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brute force end-to-end encryption is used to secure 3D volumetric media assets, then security and confidentiality are improved, but computational complexity and processing time increase significantly
Solution Approach 1:
The patent segments the 3D volumetric media asset into multiple components (mesh data, texture data, animation data, metadata) and applies different protection mechanisms to each segment. This allows selective encryption and processing of critical components while leaving less sensitive data unprotected, thereby reducing overall computational complexity while maintaining security for essential elements.
Solution Approach 2:
The patent extracts and separates sensitive attributes (such as biometric data, trade secrets, or confidential information) from the main 3D asset and stores them in a protected metadata container or separate secure storage. This extraction allows the main asset to be processed with lower computational overhead while the extracted sensitive elements receive enhanced protection, resolving the contradiction between comprehensive security and computational efficiency.
2Reliability
If brute force end-to-end encryption is applied to all 3D volumetric media assets, then confidentiality is protected, but latency increases making real-time interactive applications impractical
Solution Approach 1:
The patent performs preliminary processing during asset creation and ingestion, pre-encrypting sensitive components, pre-generating secure metadata, and pre-establishing access control policies. This preliminary action ensures that when the asset is accessed or streamed in real-time, the heavy cryptographic operations have already been completed, minimizing latency and enabling real-time interactive applications while maintaining confidentiality.
Solution Approach 2:
The patent applies different levels of encryption and protection to different portions of the 3D asset based on their sensitivity. Critical components (such as biometric identifiers or proprietary design elements) receive strong encryption, while less sensitive data (such as public geometry or non-confidential textures) uses lighter protection or none at all. This local differentiation maintains confidentiality where needed while reducing overall processing latency.
3Reliability
If full encryption is used on 3D volumetric media assets, then security against unauthorized access is improved, but ease of operation and accessibility deteriorate
Solution Approach 1:
The patent introduces an intermediary access control system that manages encryption keys and decryption credentials. This intermediary layer handles the complexity of security management, allowing authorized users to access protected 3D assets through simplified authentication mechanisms. The intermediary translates user credentials into appropriate decryption keys, maintaining security while improving ease of operation for legitimate users.
Solution Approach 2:
The patent implements dynamic access control policies that adapt encryption and decryption requirements based on user credentials, context, and asset sensitivity. Authorized users with proper credentials automatically receive the necessary decryption keys without manual intervention, while the system dynamically adjusts protection levels based on the specific asset and user combination. This dynamic approach maintains strong security while ensuring seamless accessibility for authorized parties.
Data Source
AI summary
Systems, methods and apparatuses are described herein for controlling access to 3D media assets. An attribute of an entity represented in a 3D media asset may be identified, and a modified version of the 3D media asset may be generated by modifying such attribute. A request to access at least a portion of the 3D media asset may be received from a client device. A determination may be made, based on a policy associated with the 3D media asset, to enable access to the at least a portion of such asset. In response to such determination, an indication of how to process the modified version of the 3D media asset to reconstruct such asset comprising the attribute as identified prior to the modifying may be transmitted to the client device. Such client device may be caused to generate for display such 3D media asset based on the processing.