Electric Lock Encryption via Portable Device Authentication
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Solution Overview
Problem
Conventional electric locks with default passwords are vulnerable to password skimming and cracking, lacking sufficient security measures to prevent unauthorized access.
Innovation Solution
An electric lock system that uses a portable device to transmit encrypted messages, which are decrypted by the lock to determine whether to perform an action, incorporating a wireless module, storage unit, and processing unit, enhancing security through encryption and decryption functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a default password is used for the electric lock, then the ease of operation is improved, but the reliability is worsened due to vulnerability to password skimming and cracking
Solution Approach 1:
The patent extracts the password input function from the electric lock itself and relocates it to a portable device. The lock only receives and verifies encrypted authentication data, not actual passwords. This separation removes the vulnerable password input interface from the lock while maintaining ease of operation through the portable device.
Solution Approach 2:
The patent introduces encrypted authentication data as an intermediary between the user and the lock verification system. Instead of directly transmitting passwords, the system uses encrypted data generated by the portable device, which acts as a mediator to protect the authentication process from skimming and cracking attacks.
2Reliability
If encryption and decryption functions are added to the electric lock, then the reliability is improved, but the device complexity is worsened
Solution Approach 1:
The patent extracts the encryption and decryption functions from the electric lock and relocates them to the portable device. The lock only performs simple verification of authentication data, while the complex cryptographic operations are handled by the portable device, thus improving reliability without significantly increasing lock complexity.
Solution Approach 2:
The portable device serves itself by generating and managing the encrypted authentication data, then transmitting it to the lock for verification. This self-service approach allows the system to implement strong encryption without burdening the lock with complex cryptographic processing capabilities.
Data Source
AI summary
A control method for operating an electric lock by using a portable device includes the portable device obtaining an encrypted message according to an encryption function; the portable device transmitting the encrypted message to the electric lock; the electric lock decrypting the encrypted message according to a decryption function; and the electric lock determining whether to perform an action according to a decryption result of the encrypted message.