RFID Transponder Authentication Signatures Against ID Cloning

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Solution Overview

Problem

Existing ISO 11784/11785 radio frequency identification technologies lack authentication mechanisms, making animal identification numbers vulnerable to cloning due to reliance on manufacturer guarantees and the availability of programmable transponders.

Innovation Solution

Incorporating a field-programmable memory with a unique identification code and authentication signature in RFID transponders, and using scanners to computationally authenticate these signatures based on a default telegram and UID code, ensuring compliance with ISO 11784/11785 standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manufacturer guarantees are used to ensure uniqueness of identification numbers, then identification reliability is maintained, but security against cloning deteriorates due to availability of programmable transponders

Engineering Contradiction:

Improveidentification reliabilityVSAvoidcloning vulnerability

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by pre-loading authentication data and digital signatures into the transponder memory during manufacturing. This preliminary embedding of security credentials enables the transponder to autonomously authenticate itself during operation, preventing cloning before it can occur. The authentication data is prepared and stored in advance, eliminating reliance on manufacturer guarantees alone.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces authentication data and digital signatures as intermediary elements between the transponder and the scanning system. These intermediaries serve as verifiable proof of authenticity, allowing the system to distinguish genuine transponders from clones. The authentication data acts as a mediator that enables trust verification without requiring direct manufacturer involvement during operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If authentication mechanisms are added to ISO 11784/11785 standards, then security against cloning is improved, but device complexity increases

Engineering Contradiction:

Improvecloning vulnerabilityVSAvoidtransponder structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the transponder memory into distinct functional areas: standard identification data storage and separate authentication data storage. This segmentation allows the transponder to maintain compliance with ISO 11784/11785 standards for identification while adding authentication capabilities in a modular fashion. The authentication component can be independently managed and verified without affecting the core identification function.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent uses digital signatures and copied authentication data that can be verified without duplicating the entire transponder functionality. Instead of replicating complex security hardware, the system copies and verifies cryptographic signatures, which provides security through computational verification rather than physical complexity. This allows authentication without proportionally increasing device complexity.

Inventive Principle:

Principle #26Copying

3Reliability

If digital signatures are stored in transponder memory, then authentication capability is improved, but memory requirements increase

Engineering Contradiction:

Improveauthentication capabilityVSAvoidmemory capacity

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential authentication elements (digital signatures and authentication data) from the complete transponder system and stores them in dedicated memory areas. Rather than storing entire authentication protocols or complex verification algorithms, the system extracts and stores only the necessary cryptographic signatures, which are relatively compact. This selective extraction provides authentication capability while minimizing memory consumption.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS12554948B2Method for validating radio frequency identification number

Publication Date: 2026.02.17 AVID IDENTIFICATION SYSTEMS INC

AI summary

Methods for producing and validating RFID transponders (e.g., ISO 11784/11785 compliant transponders) with identification number authentication capabilities. A signature indicator and a partial-signature trailer are introduced to the ISO telegram. An encrypted signature or partial signature is introduced to the internal memory of ISO compliant transponders. The encrypted signature can prevent fraudulent duplications of ISO 11784/11785 transponders by allowing users to securely validate the transponders' authenticity.