Hybrid Security Thread for Secure Electronic Passport Antenna
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Solution Overview
Problem
Current secure electronic media, such as electronic passports, are vulnerable to fraud and counterfeiting due to the ability to substitute or clone the electromagnetic antenna and chip, lacking effective economic protection against physical substitution or cloning.
Innovation Solution
A method is introduced to secure the circuit element by intertwining or associating a security thread with the conductive wire of the antenna, creating a hybrid thread that is difficult to dismantle, using materials sensitive to UV, IR, or fluorescent wavelengths, and attaching the end of the security wire to a connection pad with solder, enhancing the security of contactless inserts like electronic passports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional security thread is used in passport bindings, then visual authentication is improved, but protection against electromagnetic communication fraud is not achieved
Solution Approach 1:
The patent combines a traditional security thread with a conductive wire to form a hybrid thread that serves dual functions: visual authentication (from the security thread with fluorescent/magnetic particles) and electromagnetic communication (from the conductive wire). This merging resolves the contradiction by making the authentication element itself functional for electromagnetic communication, so that any fraud attempt must replicate both visual and electromagnetic properties.
Solution Approach 2:
The hybrid thread is composed of composite materials: a security thread containing fluorescent or magnetic particles combined with a conductive wire. This composite structure provides both the visual authentication characteristics of security threads and the electrical conductivity needed for electromagnetic communication, thereby protecting against electromagnetic fraud while maintaining visual verification capabilities.
2Ease of manufacture
If the antenna and chip are made separable for easy manufacturing, then manufacturing ease is improved, but vulnerability to physical substitution fraud increases
Solution Approach 1:
The security thread and conductive wire are merged into a hybrid thread that is sewn as a single integrated unit onto the support. This integration ensures that the antenna conductor and security element are permanently associated, making physical substitution or cloning extremely difficult while still allowing for relatively simple manufacturing through sewing processes.
Solution Approach 2:
The hybrid thread is prepared in advance with both security and conductive properties integrated, then sewn onto the support in a single operation. This preliminary integration of security and functionality into one component reduces manufacturing steps while ensuring that the antenna and security elements cannot be separated or substituted independently.
3Loss of information
If digital identification codes are integrated into memories, then identification capability is improved, but detectability of security features at first glance is reduced
Solution Approach 1:
The patent merges the visual security thread with the conductive antenna wire, creating a hybrid element that provides both visual detectability (through fluorescent/magnetic particles) and electromagnetic functionality (through the conductive wire). This allows security features to be detected at first glance while maintaining digital identification capabilities in the associated memory.
Solution Approach 2:
The security thread contains fluorescent or magnetic particles that produce visible color changes or patterns under certain conditions (such as UV illumination). This provides immediate visual detectability of the security feature, complementing the digital identification codes stored in memory that are not visually apparent.
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
The solution provides a secure and easily detectable electrical and electronic circuit element that is resistant to fraud, ensuring the integrity of contactless identification media by making it difficult to substitute or clone the antenna and chip, thereby protecting against electromagnetic communication fraud.
Implementation Method 1
the security thread comprises fluorescent or magnetic particles sensitive to radiation, preferably under the action of wavelengths belonging to a range not visible to the naked eye, in particular ultraviolet (UV) wavelengths
Implementation Method 2
the end of the security wire is attached or blocked by a solder on the pad or connection pad
Data Source
Figure 1~7
Figure 8~9
AI summary
The present invention relates to a method of making a secure electric or electronic circuit element, in which security is achieved with the aid of an authentication means associated with the element; the method is distinguished in that it comprises a step of associating a security wire (3) directly with the circuit element (7, 17, 21, 25, 31), the security wire comprising the authentication means (5). The invention also relates to the element obtained and support integrating such an element.