Touchscreen Password Generation via Pressure Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for password entry on touchscreens face security risks due to potential peeping, with existing anti-peeping technologies either requiring hardware changes or reducing user convenience, and existing solutions like biometric measurements or rhythm-based inputs still having vulnerabilities.
Innovation Solution
A method and apparatus that determine if the interface is in a password entry state, receive user input including a character and pressure value, and process the character based on the pressure value to generate a password, using various algorithms to ensure security and compatibility with conventional systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a physical shield is added to the device, then password security is improved, but hardware reconstruction cost increases and appearance becomes cumbersome
Solution Approach 1:
The patent replaces the mechanical/physical shield system with a software-based pressure sensing system. The touchscreen controller detects pressure values from user input, and the processor uses these pressure values to generate secure passwords through algorithms, eliminating the need for physical shields while maintaining security.
Solution Approach 2:
The patent changes the parameter being measured from simple touch presence to pressure value magnitude. By detecting the pressure applied during touchscreen input, the system creates multiple password generation modes (e.g., light press vs. hard press), enhancing security without adding physical components.
2Reliability
If key positions of the soft keyboard are changed, then password security is improved, but user input convenience is reduced
Solution Approach 1:
Instead of changing keyboard layout positions, the patent changes the parameter being analyzed from spatial location to pressure magnitude. The standard keyboard layout is preserved, but each key press is evaluated based on pressure value, creating security through varied pressure requirements rather than spatial reconfiguration.
3Reliability
If biometric measurement features are used for password entry, then password security is improved, but compatibility with existing password storage systems is reduced
Solution Approach 1:
The patent uses pressure value parameters from touchscreen input rather than biometric measurements. The pressure values are processed through algorithms to generate passwords that can be stored and verified in existing password storage systems, maintaining compatibility while enhancing security through pressure-based authentication.
4Reliability
If pressure sensor based password input is implemented, then password security is improved, but device complexity increases
Solution Approach 1:
The patent replaces dedicated pressure sensor hardware with the existing touchscreen controller's pressure detection capability. The touchscreen controller already has pressure sensing functionality that is leveraged by the processor to generate secure passwords, avoiding additional hardware complexity while maintaining security enhancements.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention discloses a method for generating a password by means of press touch, and steps are as follows: determining, by a device, whether a current interface is in a password entering state; when determining that the current interface is in a password entering state, receiving, by the device, user input information, where the input information includes a character and a pressure value generated when the character is entered; and processing, by the device, the character according to the pressure value, to generate a password. Even if a person remembers all key input of the user, the person cannot learn final input of the user, so that peeping is effectively prevented, and security is improved during password entering.