Intraoral Scanner Authentication for Secure Wireless Mode Switching
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Solution Overview
Problem
Intraoral scanning devices face security challenges due to their limited computational power and memory, making them vulnerable to unauthorized data access and modification, which can lead to malfunctions and battery exhaustion, especially in wireless communication with external devices.
Innovation Solution
The device incorporates a processing unit with a secure authentication mechanism to validate mode requests, allowing only authorized parties to update or modify firmware, and employs a wireless interface to transmit data securely, using cryptographic techniques to verify the integrity of requests and data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication with external devices is enabled for improved functionality and data transmission, then productivity and adaptability are improved, but security vulnerabilities increase due to unauthorized access and data theft risks
Solution Approach 1:
The patent applies preliminary action by performing authentication before allowing any wireless communication. The device checks whether a communication partner is authenticated before enabling data transmission, preventing unauthorized access in advance rather than responding to attacks after they occur.
Solution Approach 2:
The patent introduces an intermediary authentication mechanism between the intraoral scanning device and external devices. This intermediary layer verifies the identity and authorization of communication partners before allowing data exchange, acting as a mediator that prevents direct unauthorized access.
2Object-affected harmful factors
If security authentication mechanisms are implemented to prevent unauthorized access, then security is improved, but device complexity and computational requirements increase
Solution Approach 1:
The patent extracts the complex authentication logic from the main scanning functionality and implements it as a separate, focused module. This allows security verification to be handled independently without overwhelming the device's computational resources, separating the security function from the primary scanning operations.
Solution Approach 2:
The patent applies partial action by implementing authentication only for specific critical operations (mode changes, firmware updates, data transmission) rather than for all possible operations. This selective approach provides security where needed most while minimizing overall computational overhead.
3Ease of operation
If mode requests are allowed without authentication to enable flexible operation, then ease of operation is improved, but reliability decreases due to unauthorized mode changes and firmware modification
Solution Approach 1:
The patent performs authentication before allowing mode changes or firmware modifications. The system verifies the authenticity of mode requests before executing them, preventing unauthorized changes while maintaining legitimate operational flexibility for authenticated users.
Solution Approach 2:
The patent applies different authentication requirements to different operational modes. Critical modes like firmware updates require strict authentication, while operational modes may have different verification levels, allowing flexible operation where safe and strict security where necessary.
Data Source
AI summary
An intraoral scanning device is configured to acquire intraoral scan data from a three-dimensional dental object. The intraoral scanning device includes a processing unit configured to process intraoral scan data and provide 2D image data and/or 3D image data, a memory, and a wireless interface configured to transmit the 2D image data and/or the 3D image data, wherein the processing unit is configured to receive a mode request via the wireless interface, the mode request is one or more of a service mode request for a service mode, a customization mode request, an upgrade mode request and a debug mode request, wherein the service mode is characterized in that a firmware part of the memory is writable, authenticate the mode request; and place the intraoral scanning device into the requested mode if authentication of the mode request succeeds.