Dynamic Touch Graphic Interface for Anti-Peeping Security
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Solution Overview
Problem
Gesture locks on touch-screen electronic devices are vulnerable to unauthorized access due to sweat and grease tracks left on the screen, compromising security.
Innovation Solution
The method involves outputting a randomly changed graphic receiving interface, prompting users to perform touch operations along a random path or animation, and only allowing unlocking after the user verifies the touch graphic, thereby minimizing the likelihood of unauthorized access by removing or obscuring the track.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional gesture lock is used where users connect points on a fixed graphic receiving interface, then the operation is simple and easy to use, but sweat and grease tracks are left on the screen that can be easily replicated by others, compromising security
Solution Approach 1:
The graphic receiving interface is transformed from a static fixed grid to a dynamic interface where the position and arrangement of connection points change randomly with each locking operation. This dynamic transformation ensures that while the basic gesture connection mechanism remains simple for users, the actual pattern left on the screen varies each time, preventing replication of sweat and grease tracks.
Solution Approach 2:
Before the user performs the gesture lock, the system preliminarily randomizes the positions and arrangements of connection points on the graphic receiving interface. This preliminary action ensures that the interface configuration is already randomized before the user's finger touches the screen, so that even if tracks are left, they correspond to a random configuration that cannot be predicted or replicated by others.
2Adaptability or versatility
If the graphic receiving interface positions are kept fixed for consistent user experience, then users can easily locate and connect points, but the same touch graphic track is repeatedly left on the screen increasing security risks
Solution Approach 1:
The system dynamically adjusts the positions and arrangements of connection points on the graphic receiving interface for each locking operation. This dynamic change maintains adaptability by allowing users to still connect points smoothly (as the interface remains responsive and intuitive), while simultaneously preventing security vulnerabilities by ensuring that the physical track pattern on the screen changes with each use.
Solution Approach 2:
The system changes the spatial parameters (positions and arrangements) of connection points on the graphic receiving interface between different locking operations. This parameter change allows the interface to maintain its functional consistency for users while altering the physical pattern imprinted on the screen, thereby addressing the security vulnerability caused by repeated identical tracks.
3Reliability
If a random path is required after touch graphic input to wipe off tracks, then security is improved by removing visible tracks, but the operation becomes more complex and time-consuming
Solution Approach 1:
The system merges the track-wiping action with the existing gesture lock input operation. Instead of requiring a separate random path traversal after the gesture is completed, the randomization of connection points during the gesture input itself serves to distribute and obscure the tracks. This merging eliminates the need for additional complex operations while maintaining security benefits.
Solution Approach 2:
The system extracts the track-wiping function from being a separate post-gesture operation and integrates it into the gesture input process itself. By randomizing connection points during the natural gesture movement, the wiping action is effectively embedded within the required operation, reducing overall operational complexity while maintaining security.
Data Source
Figure 1A~1B
Figure 1C
Figure 2A
AI summary
The present invention provides a method and a device for locking and unlocking with a touch graphic. One method includes: outputting a randomly changed graphic receiving interface; receiving a touch graphic input by a user by touching through the graphic receiving interface; and performing a locking or unlocking operation according to the touch graphic. Another method includes: outputting a graphic receiving interface; receiving a touch graphic input by a user by touching through the graphic receiving interface; outputting a random path crossing the touch graphic on the graphic receiving interface; outputting first prompt information, where the first prompt information is used to prompt the user to perform a touch operation along the random path; and after receiving a touch signal generated when the user performs the touch operation along the random path, performing a locking or unlocking operation according to the touch graphic. The present invention improves security of locking or unlocking with a touch graphic.