Smart Appliance USB Authentication via Key Device Intermediary
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Solution Overview
Problem
Smart electric appliances lack effective security measures to control access and usage, particularly in restricting content for children and managing usage duration and payment, which existing technologies fail to address adequately.
Innovation Solution
A method and system utilizing a key device with a USB interface for two-factor authentication, authenticating the key device through a VID, PID, and hardware serial number, allowing controlled access, usage duration, and payment operations, integrated with a smart electric appliance's USB interface module, authentication module, general control module, and execution module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a key device with two-factor authentication is integrated into the smart electric appliance, then security and access control are improved, but device complexity increases
Solution Approach 1:
The patent introduces a key device as an intermediary security authentication component that connects to the smart electric appliance via USB interface. The key device contains cryptographic algorithms and user credentials, acting as a mediator between the user and the appliance. This separates the security authentication function from the main appliance system, improving security while avoiding direct modification of the appliance's core architecture.
Solution Approach 2:
The key device is designed as a universal security solution that can be integrated with multiple types of smart electric appliances through the standard USB interface. It provides multiple security functions including authentication, authorization, and access control in a single device, reducing the need for separate security components for each appliance type.
2Adaptability or versatility
If USB interface is added to enable communication with external devices, then functionality and versatility are improved, but security vulnerabilities increase
Solution Approach 1:
The patent implements preliminary security measures by requiring authentication through the key device before allowing any USB communication or data transfer. The authentication module verifies the key device's legitimacy and user credentials before enabling the USB interface for data exchange, preventing unauthorized access and malicious activities through the USB port.
Solution Approach 2:
The system performs preliminary authentication and authorization actions through the key device before enabling any control operations or data access via USB. The internal device descriptor is verified in advance, and user permissions are established before the appliance responds to external commands, ensuring secure communication throughout the interaction.
Data Source
AI summary
The present invention discloses a method for controlling the smart electric appliance by connecting a key device to a smart electric appliance and performing control operations on the smart electric appliance in accordance with the control settings for the key device after positively authenticating the internal device descriptor of the key device. Also, the present invention discloses a system according to the method mentioned above, including a smart electric appliance comprising a USB interface module, an authentication module, an execution module and a general control module, and a key device comprising a smart storage module. By introducing the key device, authenticating the key device before allowance of use of the smart electric appliance, and setting different control operation levels for different users of the smart electric appliance, it becomes very secure to use the smart electric appliance, while it becomes more flexible to use the same.