Content Server Encryption for Cross-Platform Media Delivery
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Solution Overview
Problem
Current media devices are often customized for single content delivery mediums and have incompatible file formats and transmission protocols, limiting their ability to receive content across different platforms, and require secure authorization and storage to combat piracy.
Innovation Solution
A content delivery system that includes a content server for encrypting content and transferring encrypted content with a license using a digital rights management technology, involving a broadcast system headend and a digital rights management license server, allowing secure and flexible content transfer across different mediums.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If media devices are customized for single content delivery medium, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The patent implements a universal content delivery system where a single media device can receive and process content from multiple delivery mediums (satellite, cable, Internet) through standardized interfaces and protocols. The system uses a common file format and transmission protocol that works across different delivery methods, allowing the same device to function with any content source without requiring customization.
2Reliability
If secure authorization and content delivery methods are implemented, then security is improved, but device complexity increases
Solution Approach 1:
The patent introduces a license server as an intermediary component that handles all security-related operations including authorization verification, content encryption, and digital rights management. By centralizing these security functions in a dedicated server rather than embedding them in each media device, the system achieves high security while keeping individual devices relatively simple.
3Reliability
If incompatible media file formats and transmission protocols are used across different delivery systems, then security is improved, but adaptability deteriorates
Solution Approach 1:
The patent employs parameter changes by maintaining multiple encryption schemes and protocol configurations that can be dynamically selected based on the delivery medium being used. The system can switch between different security parameters (encryption algorithms, key management methods) while presenting a unified interface to the user, thus adapting to different security requirements of various delivery systems without compromising adaptability.
Data Source
AI summary
Secure content transfer systems and methods to operate the same are disclosed. Disclosed example systems include a client device for use at a physical location and a media server for use at the physical location. The example media server includes a security device to determine a first encryption secret based on a first encryption key and to determine a second encryption secret based on a second encryption key. The media server also includes a decrypter to decrypt received encrypted content for requested content based on the first encryption secret and an encrypter to re-encrypt the decrypted content data for the requested content based on the second encryption secret. In addition, the media server includes an interface to send the re-encrypted content data to the client device, wherein the client device is to decrypt the re-encrypted content data based on the second encryption secret to access the requested content.