Link Device Authentication via Location-Based Probabilistic Verification

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Solution Overview

Problem

Data interception remains a concern in traditional network communication tasks that rely on physical presence authentication of a user at a device, hampering reliance on such authentication methods.

Innovation Solution

A system and method for link device authentication that involves acquiring an endpoint device identifier, determining its location, identifying probabilistically verified link devices, and transmitting an endpoint device key to these devices for secure communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional physical presence authentication is used, then user authentication is achieved, but data interception risk increases

Engineering Contradiction:

Improveauthentication reliabilityVSAvoiddata interception risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces link devices as intermediaries between the endpoint device and the network. These link devices receive authentication codes from the endpoint device and forward them to the server, creating an additional security layer that prevents direct interception of authentication data between the endpoint and server.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The authentication process is segmented into multiple independent components: the endpoint device generates an authentication code, link devices verify and forward this code, and the server validates the authentication. This segmentation distributes trust and reduces the risk of single-point data interception.

Inventive Principle:

Principle #1Segmentation

2Object-affected harmful factors

If probabilistic verification of link devices is implemented, then security against data interception is improved, but system complexity increases

Engineering Contradiction:

Improvedata interception resistanceVSAvoidauthentication system complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system uses probabilistic verification based on location parameters and authentication code validation. Instead of requiring complex cryptographic handshakes, the system changes the verification parameter to location-based probabilistic validation, which simplifies the overall system complexity while maintaining security.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Link devices perform self-verification by checking authentication codes against their own records and validating endpoint device locations against known safe zones. This self-service verification mechanism reduces the need for complex centralized verification infrastructure.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12367275B2Systems and methods for link device authentication

Publication Date: 2025.07.22 LAWSON MARK

AI summary

A system for link device authentication includes a computing device configured to acquire, from an originating device, an identifier of an endpoint device, obtain an endpoint device key corresponding to the identifier, determine, as a function of the identifier, a location of the endpoint device, identify a plurality of link devices, select, from the plurality of link devices, at least a probabilistically verified link device as a function of the authenticity of the endpoint device, and transmit, to the at least a verified link device, the endpoint device key.