Digital Content Migration via Mutual Authentication
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Solution Overview
Problem
Consumers face challenges in accessing and migrating stored digital content from legacy digital recorders to upgraded devices due to encryption and inaccessible file structures, leading to content loss during equipment upgrades.
Innovation Solution
A system and method that enables an upgraded digital recorder to detect, decrypt, retrieve, index, and securely store digital content from legacy recorders through mutual authentication and digital key usage, converting formats as needed, and allowing secure access to the migrated content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital content is encrypted and stored with inaccessible file structures in legacy digital recorders, then security and unauthorized access prevention is improved, but content accessibility and consumer control deteriorate
Solution Approach 1:
The patent introduces an authentication system with digital keys as an intermediary between the encrypted content and the consumer. The authentication server acts as a mediator that verifies consumer rights and provides decryption keys, allowing secure access without direct consumer control over the encryption mechanisms. This resolves the contradiction by maintaining security through encryption while enabling accessibility through authenticated key distribution.
Solution Approach 2:
The system changes the state of content accessibility by transitioning from completely inaccessible encrypted storage to conditionally accessible storage based on authentication parameters. The content remains encrypted but its accessibility parameter changes from false to true when proper authentication credentials are presented, resolving the contradiction between security and accessibility.
2Adaptability or versatility
If legacy digital recorders are replaced with upgraded devices, then device features and capacity are improved, but migration of stored content deteriorates due to encryption and authentication requirements
Solution Approach 1:
The authentication and content migration process is designed to be self-service oriented. The system automatically handles authentication verification, digital key distribution, and content migration between devices without requiring manual intervention or complex consumer actions. The upgraded recorder automatically communicates with the authentication server and legacy device to transfer content, simplifying the migration process despite the underlying complexity of encryption and authentication.
3Reliability
If authentication and digital key verification processes are implemented, then secure access control is improved, but processing time and system complexity deteriorate
Solution Approach 1:
The system performs authentication and digital key verification as preliminary actions before content access or migration begins. By establishing authenticated sessions and obtaining necessary decryption keys in advance, the system avoids repeated authentication delays during content operations. The preliminary authentication creates a trusted state that enables faster subsequent content access and migration operations.
Data Source
AI summary
A system and method enabling an upgraded digital recorder to detect, retrieve, decrypt, encrypt and securely store digital content retrieved from one or more legacy digital recorders. The legacy digital recorder is placed into a mode permitting access to stored digital content. An upgraded digital recorder then interfaces with the legacy digital recorder and mutual authentication is performed. Following successful authentication, the upgraded digital recorder disables most of the legacy digital recorder's functionality. Utilizing a digital key protecting the stored content from unauthorized access, the upgraded digital recorder retrieves and decrypts the digital content from the legacy digital recorder. The decrypted content is then analyzed and if needed converted to a format compatible with the upgraded digital recorder. The digital content is then indexed, encrypted and stored in the upgraded digital recorder. This process can be enabled via head-end provisioning and therefore requires little or no consumer or technician participation.