Management Device for Secure Image Capture Application Control
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Solution Overview
Problem
The safety and operability of application control over image capture devices in existing systems are insufficient, particularly in surveillance camera systems where the master key is retained by the application server even after a contract ends, allowing unauthorized camera control and difficult key management.
Innovation Solution
An image capture system with a management device that generates control authority based on contracts between the image capture device and the application, transmitting identification information to a control device, determining the control authority, and only allowing the control request to proceed if the control device has the authority, ensuring secure and authorized application control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the application server retains the master key even after a contract ends, then the application server can continuously control the camera, but unauthorized access and security risks increase
Solution Approach 1:
The management server performs preliminary actions by generating and distributing control authority to the application server before the contract begins. When the contract ends, the management server proactively notifies the application server to delete the control authority, preventing unauthorized access before it can occur.
Solution Approach 2:
The system implements feedback mechanisms where the application server notifies the management server when a contract ends, and the management server responds by instructing the application server to delete the control authority. This closed-loop feedback ensures control authority is properly managed and revoked when no longer needed.
2Ease of operation
If the application server directly manages control authority, then control is simplified, but key management becomes difficult and security is compromised
Solution Approach 1:
The system segments control authority management into two parts: the management server handles key generation, distribution, and revocation, while the application server handles actual camera control operations. This segmentation allows simplified operation at the application server while maintaining secure key management at the management server.
Solution Approach 2:
The management server acts as an intermediary between the camera and the application server. It generates control authority, distributes it to the application server, and revokes it when contracts end. This intermediary role simplifies the application server's task while maintaining secure and structured key management through the management server.
Data Source
AI summary
Provided is an image capture system capable of improving the safety and operability of application control, by a control device that makes a control request for an application, over an image capture device. The image capture system includes an image capture device and a management device that manages control over an application for the image capture device, which are connected with each other through a network. The management device generates a control authority based on the contract relating to the application for the image capture device and the image capture device, transmits image capture device identification information relating to the contract, to a control device, acquires the control request and the image capture device identification information from the control device, determines whether or not the control device has the control authority, based on the image capture device identification information, and transmits the control request to the image capture device identified by the image capture device identification information, in a case where the control device has the control authority. The image capture device receives the control request from the management device, and controls the application for the image capture device, in response to the control request.