Aerial Image Input Device Fraud Detection Mechanism
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Solution Overview
Problem
Existing input devices for secure PIN entry, such as automated transaction machines, lack robust security measures to prevent illegal data acquisition, particularly in compliance with PCIPTS standards.
Innovation Solution
An input device featuring a display mechanism projecting an image into space, a detection mechanism for fingertip position, a control board for encryption and fraud detection, and a fraud detection mechanism to prevent unauthorized data access, including a breakage detection circuit for signal line integrity and notification of fraud events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption and fraud detection mechanisms are added to ensure high-level security compliant with PCIPTS, then security is improved, but device complexity increases
Solution Approach 1:
The fraud detection mechanism is divided into separate functional modules: a breakage detection circuit that monitors signal line integrity, and a fraud determination unit that analyzes detection results. This segmentation allows each component to perform its specific function independently, managing complexity while enhancing security through specialized detection capabilities for different types of fraud attempts.
Solution Approach 2:
The breakage detection circuit acts as an intermediary between the detection mechanism and the control board, specifically monitoring the position data signal line for breakage or connection abnormalities. This intermediary component detects potential fraud attempts before they can compromise the entire system, adding a layer of security without requiring complete system redesign.
2Reliability
If a breakage detection circuit is added to detect fraud against signal lines and control boards, then security is improved, but device complexity increases
Solution Approach 1:
The breakage detection circuit performs preliminary detection of signal line breakage or connection abnormalities before fraud can successfully compromise the position data transmission. By monitoring the signal line integrity in advance and detecting potential fraud attempts early, the system can take protective actions before the actual data theft occurs, preventing the harmful effect rather than reacting after damage has occurred.
Solution Approach 2:
The breakage detection circuit is integrated into the existing signal line structure and monitors its own integrity by detecting breakage or connection abnormalities in the position data signal line. This self-service capability allows the system to detect fraud attempts using its own structural elements without requiring separate external monitoring devices, thereby limiting the increase in overall system complexity.
Data Source
AI summary
An input device includes a control portion for controlling the input device encrypts image data, which is data of an image displayed on a display surface of a display mechanism, and transmits it to the display mechanism, and a detection mechanism for detecting a position of the user's fingertip in an aerial-image display region encrypts position data, which is data of a detected position of the user's fingertip, and transmits it to the control portion. In addition, in this input device, at least a fraud against a position-data signal line which transmits the position data from the detection mechanism to a control board and a fraud against the control board can be detected by a fraud detection mechanism for detecting that a fraud against the input device.