Intraoral Scanner Challenge-Response Authentication for Secure Wireless Access
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Solution Overview
Problem
Intraoral scanning devices face security challenges due to open standard-based wireless communication interfaces, which can lead to unauthorized data access, battery exhaustion attacks, and other vulnerabilities, compromising the device and patient data integrity.
Innovation Solution
A dental system with a server device and intraoral scanning device system implements security mechanisms, including challenge-response protocols and authentication methods to protect against unauthorized access and attacks, ensuring secure communication and device integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If open standard-based wireless communication interface is used for intraoral scanning device, then ease of operation and connectivity are improved, but security and protection against unauthorized access deteriorate
Solution Approach 1:
The patent implements preliminary security measures by establishing secure communication channels before data transmission. The system performs authentication and encryption setup in advance, ensuring that when wireless communication occurs, the infrastructure is already protected against unauthorized access and data theft.
Solution Approach 2:
The patent introduces a server device as an intermediary between the intraoral scanning device and external devices. This intermediary establishes and manages secure communication channels, handling authentication and encryption protocols while allowing the scanning device to maintain simple open standard-based wireless interfaces for ease of operation.
2Object-affected harmful factors
If security algorithms and protocols are implemented in intraoral scanning device, then security against unauthorized access is improved, but device complexity and computational requirements worsen
Solution Approach 1:
The server device acts as a computational intermediary that handles complex security algorithms and protocols. This allows the intraoral scanning device to maintain simple hardware architecture while still achieving strong security protection, as the computationally intensive cryptographic operations are performed remotely by the server.
Solution Approach 2:
The patent replaces local mechanical/computational security mechanisms with remote cryptographic services. Instead of implementing complex security algorithms directly in the scanning device, the system uses encrypted communication channels and authentication protocols managed by the server, substituting local computational complexity with network-based security mechanisms.
3Object-affected harmful factors
If challenge-response authentication protocol is implemented, then security against replay attacks is improved, but communication time and processing overhead worsen
Solution Approach 1:
The system performs authentication preparation in advance by pre-establishing communication channels and storing authentication data in the server device. When authentication is needed, the challenge-response protocol can be executed efficiently using pre-configured parameters, reducing the time required for actual authentication operations.
Solution Approach 2:
The patent implements periodic authentication challenges where the server device sends challenge data at predetermined intervals. This periodic challenge-response mechanism provides continuous security against replay attacks while maintaining efficient communication timing, as the authentication occurs at regular intervals rather than requiring continuous verification.
Data Source
AI summary
According to an embodiment, a dental system and a method of securing communication for a user application installed on an external device of the dental system. The securing communication for the user application includes obtaining challenge data in the server device; transmitting the challenge data from the server device to the user application installed on the external device; transmitting a challenge request including the challenge data from the user application to the intraoral scanning device; receiving a challenge response comprising response data from the intraoral scanning device; forwarding the response data from the user application to the server device; verifying the response data in the server device based on the challenge data; and approving the user application in the server device if verifying the response data is successful.