NFC Device Hardware Switch for Untraceability Control
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Solution Overview
Problem
Near-field communication (NFC) devices require a mechanism to remain untraceable until they are acquired by their final user, preventing unauthorized access or data retrieval during their marketing life cycle while allowing authorized access and maintenance.
Innovation Solution
Incorporating a hardware switch that deactivates the untraceability feature of an NFC device, allowing it to become visible and responsive only after a user-initiated action, which is irreversible, and enabling proprietary mode access after authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the untraceability feature is activated to prevent unauthorized access during marketing, then security against fraud and hacking is improved, but the device becomes inaccessible for authorized maintenance and updates
Solution Approach 1:
A hardware switch is pre-configured in a first state during manufacturing that blocks NFC communication. The switch can be manually changed to a second state to enable communication. This preliminary configuration ensures security is built-in from the start, while providing a straightforward method for authorized activation later.
2Reliability
If the device remains untraceable throughout its lifecycle, then security is maintained, but the device cannot be activated or accessed by the final user
Solution Approach 1:
The NFC device transitions from a static untraceable state to a dynamic state where the hardware switch can change the device's operational mode. The switch enables the device to adapt between secured (untraceable) and active (traceable) states, providing versatility while maintaining security principles.
3Ease of operation
If a hardware switch is added to control untraceability, then ease of activation is improved, but device complexity increases
Solution Approach 1:
The security control function is extracted as a separate, simple hardware switch component rather than being integrated into the complex NFC circuitry. This isolation allows the switch to be a straightforward mechanical or electronic element that independently controls the untraceability feature without complicating the core NFC functionality.
4Reliability
If the untraceability feature is permanently activated, then security against unauthorized access is maximized, but the device cannot be used for its intended purpose
Solution Approach 1:
The hardware switch is pre-set to block NFC communication during manufacturing and distribution. This preliminary secure state prevents unauthorized access, while the ability to manually change the switch state enables the device to become usable by the final user, resolving the contradiction between security and productivity.
Data Source
AI summary
The present description concerns a method or device wherein an untraceability feature of a first near-field communication device is deactivated by an action on a hardware switch.