CDN Upload Authentication Using Signed Content Legitimation Tokens
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Solution Overview
Problem
Pirate operators can illegitimately distribute content through content delivery networks (CDN) by uploading unauthorized content, which current DRM systems fail to prevent effectively.
Innovation Solution
A method involving a certificate authority that issues legitimation tokens uniquely assigned to content and providers, digitally signed, to verify the legitimacy of uploaded content, ensuring only legitimate content is distributed through the CDN.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DRM systems are used to protect content, then content encryption and access control are improved, but pirate operators can still upload illegitimate contents to CDN and distribute them
Solution Approach 1:
The system performs preliminary authentication of content providers and assignment of legitimation tokens before content upload. The certificate authority authenticates content providers and issues legitimation tokens that must be attached to all uploaded content, preventing pirate operators from distributing illegitimate content before it enters the CDN network
Solution Approach 2:
The patent introduces a legitimation token as an intermediary element between content providers and CDN. This token acts as a mediator that carries authentication information and enables the CDN to verify content legitimacy without directly verifying content itself, thus preventing pirate distribution while maintaining system efficiency
2Reliability
If authentication tokens are transmitted by content owners to protect upload interface, then access security is improved, but the system becomes more complex
Solution Approach 1:
Instead of using complex authentication mechanisms, the patent creates a simplified copy of authentication information in the form of legitimation tokens. These tokens contain essential authentication data and can be easily transmitted with content, reducing system complexity while maintaining security
Solution Approach 2:
The patent extracts the authentication verification function from the content upload process and places it in the CDN's control nodes. The legitimation token contains only the essential authentication information, separating the authentication logic from the content transmission and simplifying the overall system architecture
Data Source
AI summary
A method of uploading a digital content from a content provider to a content transmission network responsible for transmitting contents to user devices. The method includes transmitting a request for a legitimation token for the digital content from the content provider to a certificate authority, upon successful authentication of the content provider by the certificate authority, receiving by the content provider the legitimation token from the certificate authority, the legitimation token including a content tag and an identifier of the content provider, and is digitally signed by the certificate authority, and uploading the digital content and the legitimation token from the content provider to the content transmission network.