Secure Messaging DRM Cloud for Sender-Controlled Content Access
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Solution Overview
Problem
Existing mobile messaging applications lack security and sender control over text messages and attachments, failing to encrypt content at rest and provide integrated digital rights management (DRM) for secure sharing and access control.
Innovation Solution
A secure messaging application integrated with a blockchain network, offering DRM for text and attachments, enabling encryption, DRM permissions, and access control through a DRM cloud service, with features like revocation and expiration, and using split-key encryption for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption and DRM are integrated into the messaging application, then security and sender control are improved, but device complexity and system requirements increase
Solution Approach 1:
The patent introduces a DRM cloud service as an intermediary component that handles complex DRM operations, encryption key management, and permission enforcement. This mediator approach allows the mobile application to provide enhanced security and sender control without requiring the device itself to handle all cryptographic operations locally, thereby reducing device complexity while maintaining strong security through cloud-based DRM infrastructure.
2Reliability
If DRM permissions and access control are enforced, then sender control and security are improved, but ease of operation deteriorates due to additional permissions and restrictions
Solution Approach 1:
The patent implements preliminary action by providing a permission selection interface that allows senders to pre-configure DRM permissions and restrictions before sharing content. Users can define access control rules, expiration dates, and usage limitations in advance, which are then automatically enforced by the DRM cloud service. This approach improves sender control while maintaining ease of operation by automating the enforcement of pre-set permissions rather than requiring continuous manual intervention.
3Reliability
If blockchain technology is integrated for DRM management, then security and immutability are improved, but device complexity and computational requirements increase
Solution Approach 1:
The patent extracts the computationally intensive blockchain operations from the mobile device and relocates them to the DRM cloud service. The mobile application interacts with the blockchain network through the cloud service, which handles smart contract execution, transaction validation, and ledger updates. This extraction approach enables the system to leverage blockchain's security and immutability features without burdening the mobile device with complex cryptographic computations and blockchain protocol implementation.
4Reliability
If real-time DRM violation monitoring and alerting are implemented, then security enforcement is improved, but use of energy and computational resources increase
Solution Approach 1:
The patent implements a feedback mechanism where the DRM cloud service continuously monitors usage patterns and automatically compares them against the permission rules defined by the sender. When a potential violation is detected, the system generates alerts and can automatically revoke access. This feedback-based approach improves security enforcement by providing real-time monitoring without requiring constant high-power computational resources on the mobile device, as the monitoring and analysis are performed server-side by the DRM cloud service.
Data Source
AI summary
The invention described herein is directed to a secure text messaging and object sharing mobile application connected to a DRM cloud service that provides encryption, digital rights management (DRM) of the text and of the attachments, blockchain transactions, the capability of attaching documents, photos and so forth, the capability of interfacing with a user's contacts application, and that operates in both Android and iOS environments.