DTCP Certificate Authentication System for PC Multimedia
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Solution Overview
Problem
Digital Transmission Content Protection (DTCP) systems face challenges in providing robust authentication and encryption for personal computer multimedia applications, as existing methods lack a standardized and efficient way to obtain authentication and encryption within these devices.
Innovation Solution
A system and method for authenticating media managers and obtaining DTCP certificates, which involves a media manager coupled to an authentication or activation system that verifies user information and generates a DTCP certificate, allowing access to content stored on set-top boxes, digital video recorders, or consumer electronic devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication and encryption systems are embedded during manufacturing, then content protection reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent introduces an authentication system that acts as an intermediary between the media manager and content protection mechanisms. This system verifies authentication information and obtains DTCP certificates externally, rather than embedding complex authentication hardware during manufacturing. The intermediary authentication system simplifies device complexity while maintaining content protection reliability through standardized DTCP certificate verification.
2Adaptability or versatility
If DTCP certificates are obtained through standardized authentication, then adaptability to different content protection systems is improved, but authentication process time increases
Solution Approach 1:
The authentication system performs preliminary authentication verification before content access is attempted. The media manager provides authentication information in advance, and the system verifies this information and obtains DTCP certificates before actual content playback or copying operations. This preliminary action ensures adaptability to different content protection systems while minimizing authentication time during actual content usage.
3Reliability
If robust authentication methods are implemented in PC multimedia applications, then content protection reliability is improved, but ease of operation decreases
Solution Approach 1:
The authentication system implements self-service functionality where the media manager automatically provides authentication information and obtains DTCP certificates without requiring manual user configuration. The system handles the authentication process autonomously by verifying authentication information and retrieving certificates through automated interactions with authentication servers, thereby maintaining high security while improving ease of operation.
Data Source
AI summary
A system for and method of authenticating a media manager and obtaining DTCP certificates is presented. The system and method may include receiving a request for digital transmission content protection certificate provided by a user of a content provider, verifying user information associated with the user of the content provider, providing the request for digital transmission content protection certificate to a digital transmission content protection certificate system, and receiving a digital transmission content protection certificate.