Temporary Password Management with Embedded Function Codes
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Solution Overview
Problem
Existing smart door lock temporary password systems lack flexibility in activation and invalidation control, require cumbersome user authorization, have low efficiency in password generation, and inadequate security measures, leading to poor user experience.
Innovation Solution
A method and system using a random code generator to create and manage temporary passwords with embedded function codes for activation, timeliness, and identity information, allowing remote distribution and flexible usage control, enhancing security and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional temporary password systems are used, then user authorization is required to obtain temporary passwords, but this increases operational complexity and reduces flexibility
Solution Approach 1:
The patent extracts the temporary password generation and management functionality from the user's mobile device (control APP) and relocates it to the door lock device itself. The door lock now independently generates temporary passwords and manages their distribution, eliminating the need for users to install and operate a control APP. This extraction resolves the contradiction by simplifying user operations while reducing system complexity.
Solution Approach 2:
The door lock device performs self-service by autonomously generating temporary passwords, storing them locally, and managing their distribution without requiring external control from a mobile device. The system serves itself by handling password creation, storage, and verification internally, which eliminates the cumbersome authorization process and improves operational ease.
2Reliability
If temporary passwords are generated for each authorized user change, then password security is maintained, but password generation efficiency decreases
Solution Approach 1:
The door lock pre-generates a batch of temporary passwords in advance and stores them locally in memory. Instead of generating passwords on-demand for each user, the system performs preliminary password generation and maintains a ready supply of secure temporary passwords. This preliminary action resolves the contradiction by ensuring security through pre-generated unique passwords while improving efficiency by eliminating repeated generation processes.
Solution Approach 2:
The system discards used temporary passwords from the active pool and recovers password generation resources for future use. When a temporary password is used or expires, it is automatically invalidated and removed from the valid set, allowing the system to maintain security while efficiently managing the password pool without regenerating passwords for every user change.
3Ease of operation
If control APP is installed on user devices, then temporary password distribution is enabled, but security risks increase due to potential password leakage
Solution Approach 1:
The patent extracts the password distribution function from the user's mobile device and relocates it to the door lock. The door lock directly provides temporary passwords to users without requiring a control APP intermediary. This extraction eliminates the security vulnerability of password storage and transmission through mobile devices while maintaining ease of distribution through direct lock-to-user delivery.
Solution Approach 2:
The patent introduces a new intermediary mechanism where the door lock itself acts as the secure mediator between password generation and user delivery. Instead of using a potentially vulnerable mobile APP as intermediary, the door lock directly mediates the password distribution process, ensuring security while maintaining operational convenience through built-in display and direct user interface.
4Adaptability or versatility
If activation and invalidation control mechanisms are simplified, then operational flexibility improves, but security control capability deteriorates
Solution Approach 1:
The patent implements dynamic temporary password management where passwords can be activated, invalidated, and reactivated based on real-time conditions. The door lock monitors usage status, time limits, and security events to dynamically adjust password validity. This dynamic approach resolves the contradiction by providing flexible adaptation to different scenarios while maintaining strong security control through automated validation and revocation mechanisms.
Solution Approach 2:
The system incorporates feedback mechanisms where the door lock continuously monitors temporary password usage status and provides real-time validation. When a password is used, expires, or is manually invalidated, the system receives feedback and automatically updates its state. This feedback loop enables flexible password management while ensuring security through continuous verification and automatic invalidation of compromised or expired passwords.
Data Source
AI summary
A method and system for controlling the use of a temporary password is provided, and the method includes the steps: generating by a random code generator end a preset number of temporary passwords after successful matching between the random code generator end and the random code use end; sending by the random code generator end at least one temporary password among the preset number of temporary passwords to the random code use end for storage therein to form a preset temporary password; and receiving a current temporary password, comparing the current temporary password with each of the pre-stored temporary passwords, and indicating successful verification if the current temporary password is the same as one of the pre-stored temporary passwords. The method can generate multiple temporary passwords at once, and control and manage the use of temporary passwords by adding function codes to the temporary passwords.