Multi-Dimensional Password Verification for Portable Devices
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Solution Overview
Problem
Portable devices with single dimension password input are easily compromised due to low complexity and stereotypical designs, making them vulnerable to unauthorized access.
Innovation Solution
A portable device with multiple distinct input units, including buttons and G sensors, that generate various input signals for multi-dimensional password verification, which are processed to match stored password information and transmit unlock signals via a wireless interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If single input device (keyboard or touch screen) is used for password input, then device structure is simple, but password complexity is low and easy to be cracked
Solution Approach 1:
The password input system is segmented into multiple independent input units (button, g-sensor, touch screen, keyboard), each capable of generating different types of input signals. This segmentation allows the system to combine multiple simple components to achieve high password complexity without requiring a single complex input device.
Solution Approach 2:
The patent transitions from single-dimension password input (traditional keyboard/touch screen only) to multi-dimension password input by incorporating additional input dimensions through g-sensors (detecting device orientation and movement) and buttons. This adds spatial and temporal dimensions to password creation, significantly increasing complexity.
2Adaptability or versatility
If single dimension password input is used, then device design is simple, but password is stereotyped and easy to crack
Solution Approach 1:
Each input unit is designed to serve multiple functions: the button can generate press signals for password input or other operational commands; the g-sensor can detect both device orientation changes and movement patterns; the touch screen serves both display and input purposes. This multi-functionality increases password design flexibility without proportionally increasing device complexity.
Solution Approach 2:
The password input system incorporates dynamic elements where the g-sensor continuously monitors device orientation and movement, allowing passwords to be created based on dynamic user actions rather than static key presses. This enables more versatile and less stereotyped password designs.
3Reliability
If multiple different input units are used for password input, then password complexity increases, but device structure becomes more complex
Solution Approach 1:
The patent merges multiple input units (button, g-sensor, touch screen, keyboard) into a unified password verification system where all units communicate through a common processing unit. This integration allows the system to leverage the combined security benefits of multiple input types while managing complexity through centralized processing and unified password verification logic.
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
The multi-dimensional password input design significantly increases password complexity, making it harder for unauthorized users to crack the password and provides a more engaging and secure user experience by utilizing multiple input methods.
Implementation Method 1
When the g sensor senses that the portable device with password verification function is rotated, the g sensor generates a rotation signal
Data Source
AI summary
A portable device with password verification function includes several input units, a storage unit and a processing unit. The processing unit is electrically connected with the input units and the storage unit. Each of the input units is different from others. Password information is stored in the storage unit. The processing unit includes a receiving module and a password verification module. The receiving module receives several input signals from the input units respectively. The password verification module verifies if the input signals match the password information.