RFID Tag Password Verification for Unauthorized Access Prevention
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Solution Overview
Problem
Conventional RFID systems lack security, allowing unauthorized users to access and read tag data, compromising user privacy as tag data can be received by multiple neighboring readers.
Innovation Solution
An RFID tag reading system that requires a preset password for data transmission, ensuring only authorized readers can access the data, with features like alarm signals for unauthorized attempts and secure operation modes to protect privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional RFID systems transmit tag data without password verification, then the ease of operation is improved, but the security and privacy protection deteriorate
Solution Approach 1:
The patent applies preliminary action by requiring password verification before allowing tag data transmission. The password verification process is performed in advance as a prerequisite condition, ensuring that only authorized readers can access the tag data. This preliminary security check resolves the contradiction by maintaining ease of operation for authorized users while preventing unauthorized access.
2Device complexity
If passive tags are used to minimize size and cost, then the device complexity is reduced, but the security functionality is limited
Solution Approach 1:
The patent introduces an intermediary mechanism by implementing a password verification system that mediates between the simple passive tag structure and the security requirements. The password verification process acts as an intermediary layer that enhances security without requiring complex hardware modifications to the passive tag itself, thus maintaining device simplicity while improving security functionality.
3Productivity
If multiple neighboring readers can receive tag data simultaneously, then the productivity is improved, but the loss of information increases due to unauthorized access
Solution Approach 1:
The patent applies feedback by implementing a password verification mechanism that provides selective access control. The system feedbacks whether the reader is authorized based on password verification, allowing data transmission only to authenticated readers. This feedback mechanism maintains high productivity by enabling simultaneous data transmission to multiple readers while preventing information loss through unauthorized access.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by ensuring tag data is only transmitted when the correct password is input, protecting individual privacy and providing immediate alerts for unauthorized attempts.
Implementation Method 1
a passive tag generates an induced current using a magnetic wave transmitted from the RFID reader
Data Source
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AI summary
Provided is a RFID tag with enhanced security. The tag includes a tag memory to store thereto pre-determined password information and tag data, an antenna to receive a tag data transmission request signal from an outer reader, and a tag controller to request the reader to transmit the password if the tag data transmission request signal is received, and then to transmit the tag data if the password received from the reader is identical with the pre-determined password. Accordingly, it can be prevented for a third-party, who does not know the password, to check the tag data.