RFID Transponder Security via Technology Release Code Segmentation
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Solution Overview
Problem
Existing RFID systems face challenges in efficiently managing access rights and security updates across millions of transponder modules, leading to costly and inefficient periodic replacements due to fraudulent attempts to breach authentication algorithms.
Innovation Solution
A read/write device and transponder module system that uses a security module to obtain and set access rights based on technology release codes, allowing for selective blocking of transponders with compromised security, while maintaining functionality for secure modules, through mutual authentication and hierarchical authentication schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transponder modules are periodically replaced to maintain security, then security level is improved, but cost and operational disruption increase
Solution Approach 1:
The patent segments the transponder module population by technology release code, allowing selective blocking of only those modules with compromised security versions while leaving modules with secure versions operational. This segmentation approach replaces a blanket replacement strategy with a targeted security measure.
Solution Approach 2:
The system changes the parameter of access rights based on the technology release code. By evaluating the security version indicated in the technology release code and dynamically adjusting access rights (blocking or allowing), the system maintains security without requiring physical replacement of all transponder modules.
2Reliability
If new authentication algorithms are introduced to counter fraudulent attacks, then security is improved, but device complexity and implementation cost increase
Solution Approach 1:
The system performs preliminary evaluation of the technology release code to determine security status before granting access. This preliminary check allows the system to proactively block potentially compromised transponders before fraudulent attacks can occur, rather than reacting to breaches after they happen.
Solution Approach 2:
The system uses feedback from the technology release code to dynamically adjust access rights. The reader evaluates the technology release code received from the transponder and uses this feedback information to make real-time decisions about granting or blocking access, creating a responsive security mechanism.
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
This approach enables selective blocking of insecure transponder modules, reducing the need for widespread replacements and enhancing security without disrupting operational transponders, thus improving security management efficiency and reducing costs.
Implementation Method 1
contactless communication between the transponder module and the reader or read/write device is based on inductive coupling of an RF field, i.e. an electromagnetic field which is transmitted by an antenna of the reader or read/write device, and an inductive element, typically a coil integrated into the transponder module
Data Source
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Figure 7
AI summary
For controlling access rights between a read/write device (1) and a transponder module (2) configured to exchange data via an electromagnetic field (3), the read/write device (1) obtains via the electromagnetic field (3) from the transponder module (2) a technology release code (T) which indicates a version of technology of the transponder module (2). Subsequently, the read/write device (1) sets access rights for the transponder module (2) using the technology release code (T). Setting access rights based on a technology release code (T) obtained from a transponder module (2) makes it possible to block transponder modules (2) selectively, depending on their inherent technology release, so that transponder modules (2) with a technology release that is without a security breach may remain in operation whereas transponder modules (2) with a technology release having a compromised security can be blocked from access.