Security-Reinforced Door Lock With Dynamic Password And Terminal Code
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Solution Overview
Problem
Existing door locks face challenges in providing high security while maintaining user convenience, particularly for female-headed households and facilities, as they are prone to password leakage, loss, or unauthorized access due to the use of electronic keys or tags.
Innovation Solution
A security-reinforced door lock system that uses a combination of a security code stored on a user's portable terminal and a password input via a keypad, with a mechanism to update and manage both the security code and password, preventing password reuse and ensuring high security through a double-unlocking function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a password-based door lock is used, then cost is reduced and user convenience is improved, but security is compromised due to password leakage
Solution Approach 1:
The authentication system is segmented into two independent components: a security code stored in the user's portable terminal and a password stored in the door lock. Both components must be present and correct for unlocking, dividing the authentication process into separate verifiable parts that enhance security while maintaining convenience
Solution Approach 2:
A password generation unit is introduced as an intermediary component that dynamically generates passwords based on the security code. This intermediary transforms the static security code into a functional password, adding a layer of security transformation without requiring the user to manually manage complex security protocols
2Reliability
If an electronic key or electronic tag is used, then access control is improved, but security is compromised when the key or tag is stolen or copied
Solution Approach 1:
The system changes the parameter of authentication from static (electronic key/tag with fixed ID) to dynamic (password generated from security code). The password can change over time or based on conditions, making stolen or copied credentials ineffective, thereby addressing the vulnerability to theft and copying while maintaining access control
3Reliability
If biometric authentication is used, then security is improved, but cost increases and access for unregistered persons is blocked
Solution Approach 1:
The authentication system achieves universality by supporting multiple authentication methods (security code + password combination, or password alone) within a single door lock system. This multi-functionality allows the system to accommodate different user needs and scenarios without requiring separate biometric systems for each case, maintaining both security and convenience
4Ease of operation
If a fixed password is used for facility door locks, then ease of operation is improved, but security is compromised due to password leakage
Solution Approach 1:
The password in the door lock is made dynamic rather than fixed. The password can be updated, changed, or invalidated based on security code verification or administrative actions. This dynamic characteristic allows the system to respond to security threats by changing credentials while maintaining ease of operation through the portable terminal integration
Data Source
AI summary
The present invention relates to a security-reinforced door lock, the security of which is reinforced, and a gate security management system using the same door lock, wherein: a double-unlock function using a security code stored in a user portable terminal, and a password input by a user's keystrokes may be provided so as to enhance user convenience; after a user enters or exits using a security code, the door lock itself may update the security code and the password together, generate multiple different passwords, and restrict the reuse of a single-used password or permit the reuse thereof only within a predetermined time, so as to allow the entry or exit of people who do not own a terminal in which a security code is stored, and prevent the leakage of the password; and multiple-visitor management for a door lock installed at a facility as well as a door lock for a single-woman household can be facilitated, and high security can be provided.