Gesture-Based Authentication Password Composition System
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Solution Overview
Problem
Conventional lock/unlock mechanisms for electronic devices, such as 'slide to unlock' and 'nine-point unlock', are vulnerable to unauthorized access since they rely on simple gestures or numerical passwords that can be easily replicated, lacking sufficient security to prevent unintentional or unauthorized access.
Innovation Solution
A password composing system that uses a display to show multiple paths from a start point to end points, a receiving unit to detect user-input movements, and a processing unit to determine valid gestures, storing codes for composing a complex authentication password through a series of sliding motions along these paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple sliding gesture is used for unlock, then ease of operation is improved, but security is worsened
Solution Approach 1:
The unlock operation is segmented into multiple distinct gestures (first gesture and second gesture) that must be performed in sequence. Each gesture corresponds to a specific path on the display, and both must be completed successfully to unlock the device. This segmentation prevents simple single-gesture attacks while maintaining user convenience through structured interaction.
Solution Approach 2:
The system dynamically adapts the unlock mechanism by requiring different gestures based on the situation. The first gesture establishes an initial state, and the second gesture builds upon it. This dynamic multi-step approach makes the unlock process more secure while remaining intuitive for legitimate users who are familiar with the interaction pattern.
2Reliability
If a numerical password is added after sliding, then security is improved, but device complexity is worsened
Solution Approach 1:
Instead of using traditional numerical passwords that require memory and typing, the system uses visual gesture copying. Users replicate physical movements (gestures) on the display rather than recalling numbers. This approach maintains security through complexity while reducing the cognitive load and mechanical complexity associated with numerical entry methods.
Solution Approach 2:
The patent replaces the mechanical approach of entering numerical digits on a keypad with a graphical gesture-based system. Users interact with visual paths on a display screen using touch or stylus movements, substituting the mechanical keyboard input with a more intuitive and secure gesture-based interface that leverages the display's capabilities.
3Reliability
If multiple gestures are required, then security is improved, but ease of operation is worsened
Solution Approach 1:
The system performs preliminary actions by establishing a first gesture that sets up the initial state for unlocking. This first gesture prepares the system to accept a second gesture that will complete the unlock process. By breaking the unlock into preparatory steps, the system makes the overall process more manageable and intuitive, reducing the perceived complexity despite requiring multiple gestures.
Data Source
AI summary
A method for composing an authentication password associated with an electronic device is implemented by a password composing system including a display, a receiving unit, and a processing unit. In the method, the display is configured to display a start point, and a plurality of displayed paths. The receiving unit is configured to detect a set of user-input movements of a contact point at the display. The processing unit is configured to determine whether the user-input movements conform with a predefined valid user-input gesture, store a plurality of codes corresponding to the valid user-input gestures, and to compose the authentication password according to valid ones of the series of the user-input movements.