Dynamic Touch Screen Security via Smudge-Based Object Repositioning
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Solution Overview
Problem
Touch screen devices are vulnerable to unauthorized access through smudges left by users, as these smudges can reveal sensitive information such as unlock codes, and existing security measures are inadequate in addressing this issue.
Innovation Solution
A touch screen device with a security enforcer that monitors its environment and adjusts its security level based on recognized users and devices, moving authentication objects and hiding application icons to prevent inference of sensitive information from smudges, by employing a system and application profile that defines default locations and thresholds for altering the display of these objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the touch screen device displays authentication objects and application icons at fixed locations, then ease of operation is improved, but security is worsened due to smudge-based information inference
Solution Approach 1:
The patent implements dynamic repositioning of authentication objects and application icons based on detected security threats. The security enforcer monitors for smudge patterns and automatically changes the positions of these objects to prevent unauthorized inference, transforming the static display into a dynamic security defense mechanism
Solution Approach 2:
The system changes the positional parameters of authentication objects and application icons in response to security conditions. By modifying the location coordinates of these objects based on smudge detection, the system adapts its display parameters to maintain security while preserving operational functionality
2Reliability
If the touch screen device elevates security level by moving authentication objects and hiding icons, then security is improved, but ease of operation is worsened due to increased user interaction complexity
Solution Approach 1:
The system performs preliminary repositioning of authentication objects before unauthorized access can occur. By proactively changing object locations in response to smudge detection, the system prevents information leakage before it can be exploited, rather than reacting after compromise
3Reliability
If the touch screen device monitors environment continuously to detect unknown users, then security is improved, but use of energy is worsened
Solution Approach 1:
The security enforcer implements a feedback mechanism that continuously monitors the touch screen for smudge patterns and adjusts security measures accordingly. This closed-loop system only activates full security protocols when anomalies are detected, rather than maintaining maximum security constantly
Data Source
AI summary
A touch screen device includes a security enforcer that monitors the environment of the touch screen device and sets an appropriate security level for the touch screen device based on the monitored environment. The monitored conditions may include users and devices in physical proximity to the touch screen device. When the touch screen device is in physical proximity to users and/or devices the touch screen device does not recognize, the touch screen device elevates its security level. The touch screen device may include a system and application profiles that defines characteristics for enhancing the security of the touch screen device by changing locations of one or more selectable objects for authentication and by changing location of one or more selectable objects for applications based on one or more defined thresholds, or for making an icon unselectable or hidden based on an elevated security level of the touch screen device.