XR Anchor Geometry for Secure Location-Based Transactions
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Solution Overview
Problem
Existing location verification methods using physical media, such as barcodes and NFC devices, face challenges including infrastructure costs, maintenance difficulties, security risks, privacy concerns, and vulnerability to loss or vandalism, while GNSS readings can be spoofed, making them unreliable for secure and reliable location verification.
Innovation Solution
A system utilizing an extended reality (XR) environment generates digital anchors based on physical environment scans, computes anchor geometries, and verifies location through a blockchain-based platform, enabling secure and reliable location verification without physical media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical media such as barcodes, QR codes, NFC devices, or cameras are used for location verification, then location verification can be performed, but infrastructure costs increase, maintenance becomes difficult, security risks arise, and privacy concerns emerge
Solution Approach 1:
The patent replaces physical media (barcodes, QR codes, NFC devices, cameras) with a digital token-based system. The physical infrastructure is substituted by cryptographic tokens that exist purely in the digital domain, eliminating the need for physical installation, maintenance, and reducing security vulnerabilities associated with physical media.
Solution Approach 2:
The patent creates digital copies of location verification credentials in the form of tokens. Instead of relying on physical objects, the system uses cryptographic representations (tokens) that can be securely transmitted and verified digitally, reducing the need for physical infrastructure while maintaining verification reliability.
2Reliability
If barcodes or QR codes are used for location verification, then location verification is enabled, but the codes must be redeployed after limited time which is expensive and cumbersome
Solution Approach 1:
The patent implements dynamic tokens with configurable validity periods. Tokens can be set to expire after specific time intervals or upon completion of verification, providing flexibility without requiring physical redeployment. The system can dynamically generate new tokens as needed, eliminating the cumbersome redeployment process while maintaining security through time-based validity controls.
3Reliability
If physical media are used for location verification, then location verification can be performed, but security is compromised as barcodes and QR codes are visible to anyone and NFC devices may be lost or stolen
Solution Approach 1:
The patent replaces vulnerable physical media with cryptographic tokens that exist only in the digital domain. These tokens use cryptographic algorithms to ensure security, making them invisible and不可复制 unlike physical barcodes or QR codes. The tokens can be securely stored in device memory or secure elements, eliminating risks of physical loss, theft, or unauthorized copying.
4Reliability
If cameras or GNSS readings are used for location verification, then location can be verified, but privacy is compromised as location is constantly monitored and recorded
Solution Approach 1:
The patent extracts only the essential verification information needed for location verification while discarding unnecessary personal data. Instead of continuously monitoring and storing detailed location information, the system uses tokens that verify presence without recording specific location coordinates or user identity, thereby maintaining verification reliability while protecting user privacy.
Data Source
AI summary
A method is provided for facilitating location-based digital transaction. The method may include scanning, using at least one sensor of a host device, a physical environment associated with a digital transaction location. The method may further include generating a set of host anchors based on the scanning of the physical environment. The method may further include computing a host anchor set geometry based on the set of host anchors. The method may further include determining an environment-embedded code associated with the computed host anchor set geometry and the digital transaction location. Further, the environment-embedded code may be stored. The stored environment-embedded code may be provided for facilitation of the digital transaction.