Wireless Wearable Authenticator Continuous Attachment Verification

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Solution Overview

Problem

Existing authentication methods for wearable, wireless devices rely on assumptions about user possession rather than verification, leading to potential security vulnerabilities and inefficiencies.

Innovation Solution

A method that uses continuous attachment confirmation through authentication information, including a credential and session label, to verify user possession of the wearable device, employing sensors and biometric data for seamless and secure authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If user possession is assumed rather than verified, then authentication is simpler, but security is compromised

Engineering Contradiction:

Improveauthentication simplicityVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors physiological signals (heartbeat, body temperature, galvanic skin response) and provides feedback about attachment status. This automatic feedback mechanism verifies possession without requiring user action, resolving the contradiction by making verification as simple as assumption while actually providing security through continuous monitoring

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The wearable device performs self-verification by autonomously monitoring its own attachment status through embedded sensors. The device independently determines whether it remains attached to the user without external intervention, eliminating the need for manual possession verification while maintaining security

Inventive Principle:

Principle #25Self-service

2Measurement precision

If biometric templates are stored for authentication, then authentication accuracy improves, but security risks increase

Engineering Contradiction:

Improveauthentication accuracyVSAvoidsecurity

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The system extracts only the necessary physiological indicators (heartbeat presence, body temperature range, GSR levels) needed for attachment verification, rather than storing comprehensive biometric templates. This extraction approach provides sufficient authentication accuracy while minimizing security risks by storing minimal data

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system uses transient physiological signals that naturally occur and change continuously (heartbeat patterns, temporary temperature variations, momentary GSR responses) rather than permanent biometric templates. These short-living physiological states provide authentication without creating persistent security vulnerabilities

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If continuous authentication monitoring is implemented, then security improves, but device complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system merges multiple physiological monitoring functions (heartbeat detection, temperature sensing, GSR measurement) into a single integrated attachment verification process. By combining these sensors and their functions into one unified monitoring system, the patent reduces overall complexity while maintaining continuous security monitoring

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The physiological sensors serve multiple functions: they detect attachment status, verify user identity, and monitor device usage patterns. This multi-functionality eliminates the need for separate systems for each function, reducing device complexity while providing comprehensive continuous authentication

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach ensures secure and continuous user authentication without assuming possession, reducing false positives and negatives, and eliminating the need for biometric template storage, thus enhancing security and usability.

Implementation Method 1

wearable deformation of the WWA

Methodology Applied

Scientific EffectDeformation: Deformation

Implementation Method 2

optical movement detection

Methodology Applied

Scientific EffectOptical movement detection:

Implementation Method 3

capacitive monitoring and electrical activity in skin of the user

Methodology Applied

Scientific EffectCapacitive monitoring: Capacitance

Data Source

PatentUS9740844B1Wireless wearable authenticators using attachment to confirm user possession

Publication Date: 2017.08.22 EMC IP HLDG CO LLC

AI summary

Wireless wearable authenticators (WWAs) are provided using attachment to confirm user possession of the WWA. A user is authenticated by receiving authentication information from a wireless, wearable authentication (WWA) device of the user. The authentication information indicates whether the user has substantially continuously worn the WWA since a prior session where the user proved his or her identity to a relying device while wearing the WWA. The user is authenticated based on an evaluation of the authentication information. The authentication information comprises, for example, a credential κ and a current session label J. A value of the current session label J can provide the indication of whether the user has substantially continuously worn the WWA since a prior session where the user proved his or her identity to a relying device while wearing the WWA.