Trusted Content Distribution via Signed Audit Tokens
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Solution Overview
Problem
Content providers face revenue losses due to inaccurate content consumption reporting by service providers, lacking a reliable method to validate content viewing reports.
Innovation Solution
Implementing a trusted environment with audit tokens signed by both content and service providers for secure content distribution and consumption, ensuring accurate auditing through transcoding, transcrypting, and reporting of multimedia content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If service providers report content consumption numbers to content providers, then revenue distribution can be processed, but inaccurate reporting occurs leading to revenue loss
Solution Approach 1:
The system implements a feedback mechanism where content consumption data is collected from service providers, validated through cryptographic audit tokens signed by both content and service providers, and used to generate verifiable consumption reports. This feedback loop ensures that the reported consumption numbers are accurately verified before revenue distribution, preventing revenue loss while maintaining efficient processing.
2Reliability
If content providers implement verification mechanisms for consumption reports, then reporting accuracy improves, but system complexity increases
Solution Approach 1:
The system introduces cryptographic audit tokens as intermediary elements that mediate between content providers and service providers. These tokens contain signed consumption data and serve as a trusted intermediary that both parties can verify without requiring complex direct verification systems. The audit tokens simplify the verification process while ensuring reliability, as they are pre-signed with cryptographic keys that both parties trust.
3Reliability
If both content and service providers sign audit tokens, then mutual trust and verification are achieved, but computational requirements increase
Solution Approach 1:
The system performs preliminary cryptographic signing of audit tokens by both content and service providers before the actual verification process. This preliminary action establishes mutual trust in advance, allowing for efficient verification later. By pre-signing the tokens with their respective private keys, both parties demonstrate their commitment to the transaction without requiring continuous computational verification, thus reducing overall energy consumption while maintaining high reliability.
Data Source
AI summary
Techniques for a trusted system for secure content distribution and trusted recording of content consumption are described. In some embodiments, the trusted system transcodes and transcrypts a media content item using a key obtained from a content provider and one or more keys based on an entitlement from a service provider to generate an encrypted media content item. The trusted system further receives a request to provide the media content item to a client device. The trusted system also obtains a signed audit token recording the request upon an authorization by the service provider based on the entitlement and a confirmation by the content provider, where the signed audit token is signed by the content provider and the service provider. The trusted system additionally provides the one or more keys for decrypting the encrypted media content item and reports the signed audit token.