Fuel Dispenser PIN Pad Tokenized Payment Security
Solution Overview
Problem
Existing fuel dispensers face challenges in securely handling and displaying payment information while also accommodating non-payment related media, leading to cost constraints and limitations in graphical rendering capabilities due to the integration of secure payment hardware within the PIN pad.
Innovation Solution
A fuel dispenser system that utilizes a PIN pad to securely store and transmit cryptographically unique electronic tokens, allowing a separate display processor to render payment display data, thereby separating the secure payment processing from graphical rendering and enabling advanced graphical capabilities without incremental cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If secure payment hardware is integrated within the PIN pad, then payment security is maintained, but graphical rendering capabilities are limited and costs increase
Solution Approach 1:
The system divides the display functionality into two separate components: the PIN pad handles secure payment processing and transmits only electronic tokens, while a separate display processor handles graphical rendering of payment display data. This segmentation allows each component to be optimized independently - the PIN pad maintains security while the display processor provides advanced graphical capabilities.
Solution Approach 2:
The patent extracts the graphical rendering function from the secure PIN pad hardware and places it in a separate display processor. The PIN pad only transmits cryptographic tokens, while the display processor receives these tokens and renders the corresponding payment display data graphically, thereby removing the burden of advanced graphics requirements from the secure payment hardware.
2Adaptability or versatility
If advanced graphical rendering hardware is integrated in the PIN pad, then graphical capabilities are improved, but costs increase
Solution Approach 1:
The system separates the expensive advanced graphical rendering hardware from the secure PIN pad, placing it only in the display processor. This allows the PIN pad to remain a cost-effective secure token generator while the display processor handles all graphical rendering, eliminating the need to duplicate expensive graphics hardware in the secure payment device.
Solution Approach 2:
The display processor receives electronic tokens from the PIN pad and uses these tokens to identify and render payment display data from stored templates. This copying approach allows the system to display high-quality graphical interfaces without requiring the PIN pad itself to have advanced graphical capabilities, thereby reducing costs.
3Measurement precision
If the PIN pad stores and transmits payment display data directly, then display accuracy is improved, but security is compromised
Solution Approach 1:
The patent introduces electronic tokens as an intermediary between the secure PIN pad and the display processor. The PIN pad stores and transmits only these cryptographic tokens, which serve as secure references to payment display data templates stored in the display processor. This intermediary mechanism maintains security while enabling accurate display rendering.
Solution Approach 2:
Instead of transmitting actual payment display data from the PIN pad, the system transmits cryptographic tokens that reference pre-stored display data templates in the display processor. The display processor uses these tokens to identify and copy the appropriate display data, thereby maintaining both security and display accuracy.
Data Source
AI summary
A fuel dispenser comprises fuel flow piping defining a flow path from a source of fuel toward a fueling nozzle. A plurality of fuel handling components are disposed along the fuel flow piping. Control electronics are in operative communication with the fluid handling components. A payment system includes a PIN pad that transmits secure tokens which are preferably cryptographically unique and independent such as not to be a function or derivative of network keys or user PIN. The tokens are then received and acted upon by a second subsystem to render PIN entry display data.