Blockchain Circle of Trust for Medical Device Security
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Solution Overview
Problem
Existing hardware devices connected via a secure environment, such as a blockchain, face challenges in ensuring secure and authorized modifications, particularly for medical devices like pacemakers, where unauthorized access can lead to hacking and improper reprogramming, compromising both patient privacy and device performance.
Innovation Solution
A system establishes a circle of trust using blockchain technology, where only approved devices within the circle can modify adjustable devices, ensuring that adjustments are authorized and secure through encryption and biometric identity validation, thereby preventing unauthorized access and ensuring the integrity of medical device functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If hardware devices are connected via a secure environment without blockchain approval, then device operation speed is improved, but security and reliability deteriorate due to unauthorized access and improper reprogramming
Solution Approach 1:
The system performs preliminary actions by establishing a circle of trust and obtaining blockchain approval before allowing any device adjustments. The smart contract validates the adjustment control device's authority and the adjustable device's eligibility in advance, ensuring security is maintained without compromising operational speed during actual use.
Solution Approach 2:
The blockchain acts as an intermediary between the adjustment control device and the adjustable device. The smart contract on the blockchain mediates the approval process, verifying device identities and authorization levels, thereby enabling secure operations without direct trusted connections between all devices.
2Reliability
If blockchain approval process is implemented for device adjustments, then security and reliability are improved, but device complexity and operational time increase
Solution Approach 1:
The smart contract serves multiple functions: it validates device identities, checks authorization levels, approves adjustments, and maintains the circle of trust. This multi-functional approach consolidates security mechanisms into a single blockchain-based system, reducing overall system complexity despite the enhanced security features.
Solution Approach 2:
The system enables self-service by allowing devices to autonomously request and receive approval from the blockchain for adjustments. The smart contract automatically validates requests and grants approval without requiring manual intervention, thereby reducing operational complexity and time.
3Reliability
If blockchain approval process is implemented for device adjustments, then security and reliability are improved, but time required for adjustments increases
Solution Approach 1:
The smart contract automatically processes adjustment requests by validating device identities and authorization levels without requiring manual approval. This self-service mechanism significantly reduces the time required for security verification while maintaining robust security controls.
Solution Approach 2:
The system performs preliminary validation of device identities and authorization levels before adjustments are needed. By pre-establishing the circle of trust and validating devices in advance, the actual adjustment process is expedited while security is maintained.
Data Source
AI summary
A method controls a modification of an adjustable device. A system establishes a circle of trust for a plurality of devices, where at least one of the plurality of devices is an adjustment control device for adjusting an adjustable device. Operations of the adjustment control device are controlled via a blockchain, where the blockchain must approve the adjustment control device before an adjustment of the adjustable device is performed by the adjustment control device. The system receives an approval from the blockchain for the adjustment control device to adjust the adjustable device, and the adjustment control device adjusts the adjustable device in response to receiving the approval from the blockchain.