Pressure-Sensitive Multi-Layer Password Authentication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing graphical authentication systems are vulnerable to 'shoulder surfing' where observers can determine the cursor location or pattern of points on the overlay image, compromising security.
Innovation Solution
Incorporating a pressure-sensitive element that requires correct pressure levels to align reference points on a touchscreen or touchpad, using pressure-sensitive input devices like force sensing resistors or capacitive touchscreens to ensure secure authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If graphical authentication systems use overlay images with reference points, then authentication functionality is enabled, but security is compromised due to shoulder surfing attacks
Solution Approach 1:
The patent applies parameter changes by introducing pressure sensitivity as an additional authentication parameter. The system requires not only visual alignment of reference points but also specific pressure thresholds to be met, thereby changing the authentication parameters from purely visual to multi-dimensional (visual + tactile), which prevents shoulder surfing attacks while maintaining authentication functionality
Solution Approach 2:
The patent transitions from two-dimensional visual authentication (overlay image on screen) to three-dimensional authentication by adding the pressure dimension. Pressure-sensitive elements detect force applied by the user, creating a new spatial dimension for verification that observers cannot see, thus resolving the security vulnerability while preserving the graphical interface
2Reliability
If pressure-sensitive elements are added to the authentication system, then security against shoulder surfing is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by using the touchscreen display to serve multiple functions: visual output, touch input detection, and pressure sensing. By integrating pressure-sensitive capabilities into the existing touchscreen infrastructure, the system adds security functionality without requiring entirely separate hardware components, thereby limiting the increase in device complexity
Solution Approach 2:
The patent merges the pressure sensing function with the existing touchscreen interface. Rather than adding separate authentication hardware, the system combines visual display and pressure detection into a unified interaction mechanism, reducing overall system complexity while achieving enhanced security
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by making it difficult for observers to determine the alignment of reference points, thereby preventing unauthorized access and improving authentication reliability.
Implementation Method 1
Incorporating a pressure-sensitive element that requires correct pressure levels to align reference points on a touchscreen or touchpad, using pressure-sensitive input devices like force sensing resistors or capacitive touchscreens
Data Source
AI summary
A method of authenticating a user of a computing device is proposed, together with a computer readable medium and a computing device on which the method is implemented. In the method a modified base image is overlaid with a modified overlay image on a display and either the modified base image or modified overlay image is moved by the user. Positive authentication is indicated in response to alignment of a base image reference point and an overlay image reference point and an indication of a correct level of pressure applied to a pressure sensitive input device.