Encoded Content Delivery via Holdback Extraction and Reintegration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current digital content delivery systems lack mechanisms to control unauthorized access, copying, and dissemination, as they do not have standardized features to identify authorized use or the individual licensed to use the content, leading to potential liability for file-sharing services and vulnerability to cryptanalytic attacks.
Innovation Solution
A method involving the extraction of a holdback portion from encoded content, which is then distributed in a damaged state, requiring reintegration with the holdback to restore the content, along with embedding unique identifiers and encrypting using a cipher block chain method to ensure authorized access and prevent unauthorized distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital content is distributed in encrypted format with specialized decoders, then unauthorized access is limited, but decoder compatibility and user selection are reduced
Solution Approach 1:
The content is divided into multiple segments distributed across different sources. Each segment alone is insufficient for complete content reconstruction, requiring authorized combination of segments according to licensing terms. This segmentation enables both protection (no single point of access) and versatility (multiple distribution channels).
Solution Approach 2:
A licensing server acts as an intermediary between content providers and users. The server verifies licensing terms, manages segment distribution rights, and controls content reconstruction permissions. This intermediary layer enables standardized protection mechanisms while maintaining compatibility across different platforms and decoders.
2Ease of operation
If content is made freely reproducible like traditional digital files, then ease of distribution is improved, but unauthorized copying and dissemination increase
Solution Approach 1:
Licensing terms and usage rights are embedded into the content segments before distribution. The authorization information is pre-configured in each segment, enabling automatic verification during content reconstruction without requiring post-distribution intervention. This preliminary action maintains ease of distribution while preventing unauthorized copying.
Solution Approach 2:
The content structure transitions from traditional single-file format to segmented format with embedded authorization parameters. Each segment contains metadata about licensing terms, usage rights, and reconstruction rules. This parameter change enables automated enforcement of distribution controls while maintaining digital file compatibility.
3Ease of operation
If all content data is provided to users, then content usability is improved, but vulnerability to cryptanalytic attacks increases
Solution Approach 1:
Critical authorization data and licensing information are extracted from the main content stream and placed in separate, protected segments. The content can be partially viewed or accessed without the extracted authorization segments, providing usability while protecting sensitive information from cryptanalytic attacks.
Solution Approach 2:
The authorization mechanism moves from a single-dimensional encryption key model to a multi-dimensional segment combination model. Instead of protecting a single decryption key, the system distributes authorization across multiple segments that must be correctly combined according to licensing terms. This dimensional change increases resistance to cryptanalytic attacks while maintaining content accessibility.
Data Source
AI summary
A method and system for delivering encoded content are provided. A holdback representing a portion of the encoded content is extracted, thereby damaging the encoded content. The damaged encoded content is distributed. The holdback is transmitted to enable reintegration of the holdback with the damaged encoded content to restore the encoded content.