Anonymous Location Verification via Cryptographic Extraction

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Solution Overview

Problem

Existing systems face challenges in efficiently verifying anonymous location credentials on a high-volume, scalable basis, especially on devices with limited computational resources.

Innovation Solution

A cryptographic platform is developed to generate and transmit messages that assert attributes about user profiles, including locations, without revealing unnecessary information. This platform operates on mobile endpoints with limited resources and enables secure, scalable anonymous location verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional credential verification systems are used to verify location credentials, then verification trust is improved, but information privacy is worsened because the system reveals unnecessary personal information

Engineering Contradiction:
Improveverification trustVSAvoidinformation privacy
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent extracts only the necessary location verification information from complete personal credentials. The system separates location data from other personal information, allowing verification of location authenticity without exposing unnecessary personal details. This is achieved through cryptographic proofs that verify location credentials without revealing the underlying personal information.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The credential verification process is segmented into distinct cryptographic components: location credentials, verification proofs, and privacy-preserving layers. This segmentation allows the system to verify location authenticity while maintaining privacy by handling different information types separately through cryptographic operations.

Inventive Principle:
Principle #1Segmentation

2Reliability

If cryptographic verification protocols are implemented to ensure security, then verification reliability is improved, but computational resource requirements are worsened

Engineering Contradiction:
Improveverification securityVSAvoidcomputational resource consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary cryptographic setup and key generation during credential issuance, so that the mobile device only needs to execute lightweight verification operations during actual location verification. The computationally intensive cryptographic operations are performed in advance by the credential issuer, not during the verification process on the mobile device.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses cryptographic copies and proofs rather than processing original large datasets. Verification is performed on compact cryptographic representations (proofs and signatures) rather than on the actual location data or personal information, significantly reducing computational requirements while maintaining security.

Inventive Principle:
Principle #26Copying

3Measurement precision

If detailed location information is provided for verification, then verification accuracy is improved, but privacy protection is worsened

Engineering Contradiction:
Improvelocation verification accuracyVSAvoidlocation privacy
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The system applies different levels of information disclosure to different verification needs. The cryptographic proof structure allows the verification system to obtain sufficient location accuracy for verification purposes without exposing the complete precise location data. The proof contains just enough location information to verify authenticity while maintaining privacy through cryptographic masking.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250125964A1System and method for anonymous location verification
Publication Date: 2025.04.17 ROYAL BANK OF CANADA
  • US20250125964A1 patent drawing
  • US20250125964A1 patent drawing
  • US20250125964A1 patent drawing

AI summary

A computer implemented system for anonymous electronic verification of location credentials including at least one processor and data storage is described in various embodiments. The system includes cryptographic mechanisms and electronic communication between one or more computing systems that in concert, provide verification of a prover's location credentials in accordance to logical conditions of a verifier's policy without providing additional information to a verifier entity.