Behavior-Based Authentication with Environmental Adaptation

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Solution Overview

Problem

Conventional authentication methods for mobile communication systems rely on PINs, passwords, or fingerprint sensors, which are prone to forgetfulness, guessability, and environmental failures, offering limited security and ease of unauthorized access.

Innovation Solution

A behavior-based authentication system that uses sensors to capture and analyze user behavior and environmental parameters, allowing access without traditional authentication methods by recognizing individual intrinsic behavior patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional authentication methods (PIN, password, fingerprint) are used, then access control is provided, but security is compromised due to forgetfulness, guessability, and environmental failures

Engineering Contradiction:
Improveauthentication reliabilityVSAvoidease of authentication
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs authentication automatically by analyzing user behavior patterns captured through sensors. The user does not need to manually input credentials or actively participate in the authentication process - the system self-evaluates whether the current user matches the registered user based on behavioral data from accelerometers, gyroscopes, and other sensors.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces mechanical authentication systems (fingerprint sensors, physical key entry) with sensor-based behavioral analysis. Instead of relying on physical traits or manual input, the system uses motion sensors, accelerometers, and gyroscopes to capture and analyze user behavior patterns, substituting physical authentication mechanisms with automated behavioral recognition.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If environmental parameters are not considered in authentication, then the authentication process is simpler, but authentication accuracy decreases under varying environmental conditions

Engineering Contradiction:
Improvebehavioral data evaluation accuracyVSAvoidauthentication system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system dynamically adjusts the evaluation of behavioral data based on environmental parameters such as temperature, humidity, and location. By incorporating these environmental factors, the system adapts its authentication criteria to account for variations in user behavior caused by environmental conditions, thereby maintaining measurement precision across different contexts.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If behavioral data is stored externally, then data accessibility is improved, but security is reduced due to potential unauthorized access

Engineering Contradiction:
Improveauthentication securityVSAvoiddata accessibility
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent stores behavioral data within the secure memory of the mobile communication system itself, nesting the authentication data directly within the device's protected environment. This eliminates the need for external storage and reduces the attack surface for unauthorized access, while maintaining data accessibility through the device's own processing units.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3477981B1Behaviour-based authentication taking into account environmental parameters
Publication Date: 2021.06.16 BUNDESDRUCKEREI GMBH
  • EP3477981B1 patent drawingFigure 1a~1b
  • EP3477981B1 patent drawingFigure 2
  • EP3477981B1 patent drawingFigure 3a~3b

AI summary

The invention relates to a method for authenticating a current user to a mobile, portable communication system (100). The communication system (100) is configured to acquire behavior-based data (500) of the user and to receive at least one environmental parameter (510) via a digital cellular network (200). The method comprises performing behavior-based authentication by the communication system (100) with the following steps: - at a first time point, receiving the at least one environmental parameter (510) via the wireless communication interface (150), - storing the at least one environmental parameter (510) in the memory (120) of the communication system (100), - at a second time point, acquiring behavior-based data (500) of the current user and reading the at least one stored environmental parameter (510), - evaluating the acquired behavior-based data by the classification module (160).wherein the evaluation includes checking whether the recorded data of the current user corresponds to stored behavior-based data of a registered user, wherein the evaluation is adapted to the environmental influence using at least one read environmental parameter (510), - generating an initial authentication signal, wherein the authentication signal indicates successful authentication of the current user.