Fuel Dispenser Interface Tamper Erasure Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fuel dispenser user interfaces are vulnerable to tampering, allowing unauthorized access to sensitive customer information, such as account details and PINs, despite existing security measures like secure enclosures and protective mesh coverings.
Innovation Solution
A user interface design for fuel dispensers featuring a display board and control circuitry with a processor, memory, and a trigger mechanism that erases sensitive information stored in memory upon activation, preventing unauthorized access by separating or removing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display and control circuitry are mounted separately in secure enclosures with exposed data and control lines, then the interface is more accessible and easier to manufacture, but the sensitivity to tampering and unauthorized access increases
Solution Approach 1:
The patent merges the display and control circuitry into a single integrated user interface assembly where the display board physically overlays the control circuitry plane. This combination reduces the exposure of data and control lines compared to separate enclosures, while maintaining manufacturing feasibility through standardized assembly processes.
Solution Approach 2:
The user interface is segmented into distinct functional layers (display board, control circuitry plane, trigger mechanism) that can be manufactured separately and then assembled together. This segmentation allows for specialized manufacturing of each component while enabling integrated security features when combined.
2Reliability
If protective mesh coverings are used on circuit boards, then the components are protected against interception, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent implements preliminary anti-action by incorporating a trigger mechanism that proactively erases sensitive data from memory before any unauthorized access can occur. This preventive measure eliminates the need for complex physical protective mesh coverings, as the security is achieved through automated data destruction upon detection of tampering attempts.
3Reliability
If multiple security layers are implemented, then the security against tampering is improved, but the ease of operation and user experience deteriorates
Solution Approach 1:
The user interface implements self-service security through an automated trigger mechanism that monitors for tampering conditions and automatically erases sensitive data without requiring user intervention. This maintains ease of operation for legitimate users while providing robust security, as the security function operates autonomously in the background.
4Ease of repair
If the user interface components are made removable, then the ease of repair and maintenance is improved, but the risk of component removal and data exposure increases
Solution Approach 1:
The patent applies preliminary action by programming the control circuitry to automatically erase sensitive data from memory upon detection that a component has been removed or tampered with. This ensures that even if components are removed for repair, the sensitive data is already destroyed, eliminating the security risk associated with removable components.
Data Source
AI summary
A user interface for a fuel dispenser has a display, a display controller, and control circuitry. The control circuitry includes a processing device, memory, and at least one microswitch. The display controller and the control circuitry are positioned such that the microswitch connects the control circuitry to the display controller. The microswitch is activated if the control circuitry is separated from the display controller. Activation of the microswitch causes any sensitive information stored by the control circuitry to be erased. In one aspect, separation of the display controller from the control circuitry is the only manner by which the processing device and/or the memory may be accessed.