Appliance-Specific DRM Encryption for Offline Usage Rights Control

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Solution Overview

Problem

Existing methods for securing the distribution and usage of digital content are complex, lack effective security, and fail to ensure that content is only usable on authorized devices according to defined usage rights, especially in a distributed environment.

Innovation Solution

A system and methodology that encrypts content specifically for a recipient device using an internally generated Appliance ID, allowing selective viewing, printing, and execution, while ensuring decryption can only occur on the intended device, using a partial decryption key and appliance-specific encryption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing encryption schemes are used for content distribution, then basic security is provided, but the systems are complex and confusing to users and lack effective security in distributed environments

Engineering Contradiction:

Improvecontent securityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a rights management server as an intermediary between content providers and recipient devices. This server manages encryption keys, appliance identifiers, and usage rights, simplifying the complexity for end users while maintaining strong security through centralized control and verification mechanisms.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system segments security functions into distinct components: appliance-specific identification, content encryption, key management, and usage rights enforcement. This modular approach reduces overall system complexity by allowing each component to be independently managed and optimized.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If content is encrypted for multiple devices, then distribution flexibility is improved, but control over device-specific usage is lost

Engineering Contradiction:

Improvedistribution flexibilityVSAvoiddevice-specific control

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements appliance-specific encryption where each recipient device receives a unique encryption key tied to its appliance identifier. This allows content to be distributed to multiple devices while maintaining device-specific control, as each device can only decrypt and use content on its own hardware.

Inventive Principle:

Principle #3Local quality

3Reliability

If server authentication is required for content decryption, then centralized control is maintained, but system operation becomes dependent on continuous server connectivity

Engineering Contradiction:

Improvecentralized controlVSAvoidoperational independence

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary authentication and key exchange during content acquisition, storing encrypted content and usage rights locally on the recipient device. This allows the device to independently enforce usage rights and decrypt content without requiring continuous server connectivity, while still maintaining centralized control over what can be done with the content.

Inventive Principle:

Principle #10Preliminary action

4Reliability

If existing DRM systems are implemented, then content protection is provided, but user experience deteriorates due to complexity and restrictions

Engineering Contradiction:

Improvecontent protectionVSAvoiduser experience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent enables recipient devices to self-verify their authorization to access and use content through locally stored appliance identifiers and usage rights. This eliminates the need for users to navigate complex authentication interfaces or contact support for verification, improving user experience while maintaining strong content protection.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12476802B2Method and system for secure distribution of selected content to be protected on an appliance-specific basis with definable permitted associated usage rights for the selected content

Publication Date: 2025.11.18 OL SECURITY LLC

AI summary

The present invention relates to data rights management and more particularly to a secured system and methodology and production system and methodology related thereto and to apparatus and methodology for production side systems and are consumer side systems for securely utilizing protected electronic data files of content (protected content), and further relates to controlled distribution, and regulating usage of the respective content on a recipient device (computing system) to be limited strictly to defined permitted uses, in accordance with usage rights (associated with the respective content to control usage of that respective content), on specifically restricted to a specific one particular recipient device (for a plurality of specific particular recipient devices), or usage on some or any authorized recipient device without restriction to any one in specific, to control use of the respective content as an application software program, exporting, modifying, executing as an application program, viewing, and/or printing of electronic data files.