Password Input System with Adaptor-Based Auto-Unlock
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Solution Overview
Problem
Conventional USB security devices require password input every time, even in secure environments, which is inconvenient and increases manufacturing costs due to the need for additional authentication methods like biometrics or Bluetooth functionality.
Innovation Solution
A password input system that allows secure state unlocking without user input by using a password adaptor, which sets up a connection based on user input patterns, time intervals, and waiting times, utilizing a single input unit and minimizing additional software requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If password input is always required for security authentication, then security reliability is improved, but ease of operation deteriorates due to inconvenient repeated input
Solution Approach 1:
The system performs preliminary password input through the input unit and stores it in memory before the USB security device is coupled to the host device. When the device is later connected, the pre-stored password is automatically used for authentication, eliminating the need for repeated password input while maintaining security.
Solution Approach 2:
The input unit serves as an intermediary component that captures the user's password input and transfers it to the memory for later use. This intermediary mechanism allows the password to be entered once and then automatically provided to the authentication system when needed, resolving the contradiction between security and convenience.
2Reliability
If additional authentication methods like biometrics or Bluetooth are added, then security reliability is improved, but manufacturing cost increases
Solution Approach 1:
The input unit is designed to perform multiple functions: it can capture password input through various methods (keyboard, mouse, touch screen) and store it for later authentication. This multi-functional design eliminates the need for separate biometric sensors or Bluetooth modules, maintaining security while reducing manufacturing costs.
Solution Approach 2:
The system uses the host device's existing input capabilities (keyboard, mouse, touch screen) to capture the password, rather than requiring dedicated authentication hardware. The USB security device leverages the host's self-service input mechanisms, avoiding additional manufacturing costs while maintaining strong security through the pre-stored password authentication.
3Ease of operation
If multiple input devices are used for password input, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The input unit is designed as a universal interface that can accept input from multiple sources (keyboard, mouse, touch screen) through a single standardized connection. This single multi-functional input unit eliminates the need for multiple separate input devices while maintaining input flexibility, thereby reducing device complexity.
Data Source
AI summary
A password input system equipped with a security setting function is disclosed. The system includes one input unit configured to receive an input from user; an output unit configured to output a current state and result; a dedicated communication port configured to transmit and receive data to and from a password adaptor; a memory configured to save a program for security setting function; and a processor configured to execute the program saved in memory. When the processor waits for an input of a password from user and simultaneously password adaptor is coupled to dedicated communication port, the processor receives a password through communication with password adaptor and compares received password with a pre-saved password, and when the received password matches the pre-saved password, the processor unlocks a secure state without further inputting a password.