Sensor Control Device Authentication via Cryptographic Token Verification
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Solution Overview
Problem
Existing analyte monitoring systems face challenges in authenticating authorized sensor control devices and preventing the use of counterfeit or unauthorized devices within in vivo and in vitro environments, particularly in diabetes management where accurate glucose monitoring is critical.
Innovation Solution
The implementation of a system where a reader device communicates with a sensor control device to verify its authenticity through a local wireless communication path, sending an identifier to a trusted computer system for verification against a registration database, and ensuring the device is not counterfeit or used, using methods such as serial numbers, tokens, and public-private key cryptography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication mechanisms are implemented to prevent counterfeit devices, then device security and reliability are improved, but system complexity increases due to additional verification steps and components
Solution Approach 1:
The patent applies preliminary action by implementing authentication verification before the sensor control device is allowed to operate. The reader device checks the sensor control device's identifier against a registration database and verifies cryptographic tokens prior to enabling analyte monitoring operations, ensuring only authorized devices are activated.
Solution Approach 2:
The patent uses an intermediary approach by introducing a trusted computer system with a registration database that mediates between the reader device and sensor control device. This intermediary verifies device authenticity through cryptographic tokens and identifiers, allowing secure authentication without requiring direct complex verification between all system components.
2Reliability
If authentication protocols are added to verify sensor control devices, then prevention of unauthorized device use is improved, but the time required for device operation increases due to verification processes
Solution Approach 1:
The authentication process is performed as a preliminary action during device initialization and activation. The reader device verifies the sensor control device's identifier and cryptographic tokens before allowing any analyte monitoring operations to begin, ensuring security is established upfront rather than continuously during operation.
Solution Approach 2:
The sensor control device performs self-authentication by providing its own identifier and cryptographic tokens to the reader device. This self-service approach allows the device to prove its authenticity without requiring continuous external verification, reducing time overhead during normal operation.
3Reliability
If authentication verification is performed for each sensor control device, then device authenticity is improved, but ease of operation decreases due to additional verification steps required by users
Solution Approach 1:
The authentication process is automated through self-service mechanisms where the reader device automatically retrieves and verifies the sensor control device's identifier and cryptographic tokens against the registration database. Users simply need to connect the devices without manually providing authentication information, maintaining ease of use while ensuring authenticity.
Solution Approach 2:
The trusted computer system acts as an intermediary that handles the complex authentication verification automatically. This mediator performs the heavy lifting of cryptographic token verification and database checking without requiring user intervention, maintaining simple user operations while ensuring robust device authenticity verification.
Data Source
AI summary
Systems, devices, and methods are provided that allow the authentication of devices within analyte monitoring systems. The analyte monitoring systems can be in vivo systems and can include a sensor control device with a sensor and accompanying circuitry, as well as a reader device for communicating with the sensor control device. The analyte monitoring systems can interface with a trusted computer system located at a remote site. Numerous techniques of authentication are disclosed that can enable the detection of counterfeit components, such as a counterfeit sensor control device.