Remote Probe Device for Encrypted Content Verification
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Solution Overview
Problem
Traditional media distribution systems lack scalability and are expensive, making it difficult to verify the correct delivery of encrypted content according to scheduled information, and they often require expensive, single-use devices that do not comply with standards.
Innovation Solution
A content distribution system utilizing a remote probe/playback device and a decrypting device to capture and decrypt encrypted content, allowing verification of content delivery by archiving and retrieving decrypted content for playback, with the decrypting device configured by a conditional access server to support various encryption schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional media distribution systems are used to verify encrypted content delivery, then content delivery verification is possible, but the system becomes expensive and lacks scalability
Solution Approach 1:
The patent uses probe devices to capture copies of encrypted content during transmission and storage. These copies are then decrypted and verified without requiring expensive specialized verification equipment throughout the distribution network. The probe device creates a verifiable copy that can be independently checked.
Solution Approach 2:
The probe device serves multiple functions: capturing encrypted content, storing it locally, decrypting it using provided decryption keys, and verifying content delivery. This multi-functional approach eliminates the need for separate specialized verification systems, reducing overall system complexity and cost.
2Measurement precision
If expensive single-use devices are deployed for content verification, then verification accuracy is improved, but device complexity and cost increase
Solution Approach 1:
Instead of deploying expensive single-use verification devices, the patent uses a reusable probe device that can perform multiple verification operations. The probe device is a cost-effective, standardized component that can be used repeatedly across different content verification scenarios, eliminating the need for expensive disposable equipment.
Solution Approach 2:
The probe device can be dynamically configured with different decryption keys and verification parameters through software updates rather than requiring hardware changes. This allows the same physical device to adapt to different encryption schemes and verification requirements, maintaining high verification accuracy without increasing device complexity.
3Reliability
If encrypted content is stored and decrypted at remote locations, then content verification is enabled, but security risks increase
Solution Approach 1:
The probe device acts as an intermediary that captures encrypted content and stores it locally in secure memory. Rather than requiring continuous connection to central decryption systems, the probe securely holds encrypted content locally and only decrypts it when authorized with provided decryption keys, reducing security risks associated with remote decryption.
Solution Approach 2:
The system separates the functions of content capture, secure local storage, decryption, and verification into distinct operational phases. Encrypted content is stored separately from decryption keys, and decryption only occurs when both are available and authorized. This segmentation reduces security risks by limiting exposure of sensitive materials.
Data Source
AI summary
A content distribution system is disclosed that supports verification of transmission. In some embodiments, a remote probe device captures content and sends the content to a decrypting device so that decryption may be performed. The decrypting device may archive the content and may subsequently send the content to the probe device or to a playback device so that the content may be displayed. Consequently, the content distribution system can verify that specified content (e.g., an advertisement) was correctly distributed according to scheduled information.