Authentication Persistence Using Device Stability Fingerprinting

Solution Overview

Problem

Existing authentication methods require manual reauthentication at each instance, causing user annoyance and friction, despite the user's device remaining stable and unchanged.

Innovation Solution

Implement an authentication persistence check that allows successful authentication to persist if the user's device remains stable and within a predetermined drift threshold, using device fingerprinting and behavioral biometrics to verify device stability and minimal changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual reauthentication is required at each instance, then security is maintained, but user convenience deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary device fingerprinting and stability assessment when authentication first succeeds, storing this baseline information. This preliminary action enables later persistence decisions without requiring repeated full authentication, thus maintaining security while improving convenience.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors device stability and compares current device state against the stored baseline fingerprint. This feedback mechanism allows the system to dynamically decide whether to permit authentication persistence, balancing security requirements with user convenience based on real-time device conditions.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If authentication persistence is allowed without checks, then user convenience is improved, but security deteriorates

Engineering Contradiction:

Improveuser convenienceVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary device fingerprinting and stability assessment when authentication first succeeds, storing this baseline information. This preliminary action enables later persistence decisions without requiring repeated full authentication, thus maintaining security while improving convenience.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors device stability and compares current device state against the stored baseline fingerprint. This feedback mechanism allows the system to dynamically decide whether to permit authentication persistence, balancing security requirements with user convenience based on real-time device conditions.

Inventive Principle:

Principle #23Feedback

3Reliability

If device fingerprinting and stability checks are performed, then authentication persistence security is improved, but system complexity increases

Engineering Contradiction:

Improveauthentication persistence securityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system leverages existing device identifiers and characteristics that are already present in the mobile device (such as device metadata, configuration settings, and inherent hardware properties). By utilizing these self-existing device attributes, the system performs fingerprinting without requiring additional complex hardware or external services, thus improving security while limiting complexity increase.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12603883B2Establishing authentication persistence

Publication Date: 2026.04.14 CAPITAL ONE SERVICES LLC

AI summary

Various embodiments are generally directed to performing an authentication persistence check and, based on the check, allowing a previously successful authentication to persist on a user apparatus. The check may involve a stability check on the user apparatus. If the user apparatus is stable, device fingerprinting on the apparatus may be performed, the result of which may be compared to a snapshot of apparatus taken at the time of successful authentication. If the comparison reveals changes or drifts that are within a predetermined threshold, then the persistence of the authentication is allowed.