Application Control Key Segmentation for Surveillance Safety
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Solution Overview
Problem
Existing image capture systems face challenges in ensuring the safety and operability of application control over image capture devices, particularly in surveillance camera systems, where the master key is difficult to manage and can lead to unauthorized access and control after contract completion.
Innovation Solution
An application control system and method where a management device generates a control key for a terminal device, transmitting it to the device, and a control device requests application control; the terminal device verifies the key and only responds to authorized requests, ensuring secure and controlled application management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a master key is embedded in the image capture device for application control, then the device can be controlled by applications, but the safety and operability of application control becomes insufficient and unauthorized access may occur after contract completion
Solution Approach 1:
The patent segments the control key into multiple parts: a first control key stored in the image capture device and a second control key stored in the external storage device. Both keys are required together for application control, preventing unauthorized access even if one key is compromised. This segmentation resolves the contradiction by maintaining application control capability while significantly improving safety through distributed key management.
Solution Approach 2:
The patent introduces an intermediary verification process where the image capture device checks whether the combination of the first control key (from device) and second control key (from external storage) matches a predetermined value before allowing application control. This intermediary verification mechanism enables application control while ensuring safety and operability by validating key authenticity.
2Duration of action of stationary object
If the master key is retained in the image capture device, then application control can be maintained, but key leakage risk increases and frequent key changes are required
Solution Approach 1:
The patent extracts the second control key from the image capture device and stores it externally in a separate storage device. This extraction eliminates the key leakage risk associated with retaining the complete master key in the device, while maintaining application control duration through secure external storage. The control functionality remains intact as both key parts are required for operation.
3Ease of manufacture
If a license file is passed to the server for application installation, then application deployment is enabled, but the safety and operability of application control remains insufficient
Solution Approach 1:
The patent implements a dynamic key verification system where the image capture device actively checks whether the combination of its stored first control key and the second control key from external storage matches a predetermined value. This dynamic verification process enables flexible application deployment while ensuring control safety, improving upon static license file approaches.
Data Source
AI summary
Provided is an application control system capable of improving the safety and operability of application control, by a control device that makes a control request for an application, over a terminal device. The application control system includes a terminal device and a management device, which are connected with each other through a network. The management device generates a control key for controlling an application for the terminal device, and transmits the control key to the terminal device and the control device. The terminal device receives and retains the control key from the management device, receives the control key and the control request from the control device, and controls the application for the terminal device corresponding to the control key, in response to the control request, in a case where the retained control key and the control key from the control device match one another.