Tamper-Resistant POS Device Using Void-Filling Security Solids
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Solution Overview
Problem
Point of sale (POS) devices are vulnerable to tampering due to air-filled gaps between components, which can be exploited by hackers to steal financial and personal information.
Innovation Solution
The implementation of a security housing with tamper solids or inert materials to fill design voids within the POS device, connected to a tamper detection circuit that detects any physical tampering attempts and disables the device to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If air-filled gaps are left between components in POS device assembly, then manufacturing complexity is reduced and assembly is easier, but security is compromised as hackers can insert bugs to steal financial information
Solution Approach 1:
The patent converts the harmful air-filled gaps into beneficial security features by filling them with tamper-detecting materials. These materials normally serve as space fillers but simultaneously provide tamper detection capability, transforming a security vulnerability into a security strength. When tampering occurs, the materials detect it and trigger alarm signals or disable the device.
Solution Approach 2:
The patent introduces tamper-detecting materials as intermediary substances between components. These materials act as mediators that fill the gaps between components while providing security functionality. The intermediaries detect physical tampering attempts and transmit detection signals to the control circuit, which then triggers security responses.
2Object-affected harmful factors
If tamper detection circuit and materials are added to fill gaps, then security is improved by detecting tampering attempts, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by making the tamper-detecting materials serve dual purposes: filling air gaps between components and detecting tampering attempts. The control circuit also performs multiple functions by receiving signals from various sensors and coordinating security responses. This reduces the need for separate dedicated components for each function.
Solution Approach 2:
The patent merges the gap-filling function with the tamper detection function into a single integrated system. Instead of having separate gap fillers and separate detection devices, the tamper-detecting materials combine both functions. The control circuit merges signal processing from multiple sensors into a unified security management system.
3Object-affected harmful factors
If tamper solids are used to fill design voids, then security is enhanced by preventing bug insertion, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs materials that change their physical parameters in response to tampering. The tamper-detecting materials alter their electrical, mechanical, or other physical properties when subjected to physical stress, intrusion, or environmental changes. This allows the system to detect tampering without requiring extremely precise filling, as the materials themselves provide the detection capability through their parameter changes.
Data Source
AI summary
Aspects of the technology provide systems, devices and methods for filling design voids within an assembled electronic device with tamper solids in order to prevent and/or detect a tampering with the electronic device to gain unauthorized access to the electronic device to steal information.