Multi-Channel Mobile Authentication via Terminal Fingerprint

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Solution Overview

Problem

Existing user authentication methods, such as username and password combinations, are inconvenient and vulnerable to fraudulent access, and multi-factor authentication systems often require multiple credentials, making them difficult to manage.

Innovation Solution

An authentication system that uses two distinct communication channels to verify a mobile terminal's secure element and processor-based controller, generating responses based on unique terminal fingerprints and transaction context, enhancing security and convenience by reducing the need for multiple passwords.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If username and password authentication is used, then user identification is achieved, but security is vulnerable and convenience is poor due to memory burden

Engineering Contradiction:
Improveauthentication securityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system uses the mobile terminal itself to generate authentication responses through its secure element and processor-based controller, eliminating the need for users to remember passwords. The terminal's unique fingerprint and transaction context automatically create secure authentication credentials.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The mobile terminal acts as an intermediary between the user and the authentication system, using its secure element and controller to mediate the authentication process through multiple communication channels, replacing direct username/password entry.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple authentication factors are used, then security is improved, but device complexity and credential management difficulty increase

Engineering Contradiction:
Improveauthentication securityVSAvoidauthentication system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system merges multiple authentication factors (secure element verification, processor-based controller verification, terminal fingerprint analysis, and transaction context validation) into a unified authentication process that operates transparently through multiple communication channels.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mobile terminal's secure element and processor-based controller serve multiple functions: generating unique terminal fingerprints, creating authentication responses, and validating transaction contexts across different communication channels, eliminating the need for separate authentication devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If multiple authentication factors are used, then security is improved, but ease of operation deteriorates due to multiple credentials to manage

Engineering Contradiction:
Improveauthentication securityVSAvoidcredential management
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mobile terminal automatically manages all authentication credentials and generates responses without user intervention. The secure element and processor-based controller handle credential storage, generation, and transmission across multiple channels, eliminating the need for users to manage multiple passwords or tokens.

Inventive Principle:
Principle #25Self-service

4Reliability

If channel diversity is increased, then security against fraudulent access is improved, but system complexity increases

Engineering Contradiction:
Improvefraud preventionVSAvoidcommunication channel complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The authentication system segments the verification process into distinct communication channels, with the secure element handling one channel and the processor-based controller handling another, allowing independent verification through diversified paths while maintaining modular system architecture.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3632071B1Mobile device authentication using different channels
Publication Date: 2026.01.28 BELGIAN MOBILE ID SA NV
  • EP3632071B1 patent drawingFigure 1
  • EP3632071B1 patent drawingFigure 2
  • EP3632071B1 patent drawingFigure 3

AI summary

An authentication system (21) is disclosed which is configured, in response to receiving a request to authenticate a transaction, to send a first challenge (313) to a mobile terminal (4) via a first channel (78) and, in response to receiving a first response (316) to the first challenge to determine whether the first response is correct, to send a second challenge to the mobile terminal (4) via a second, different channel (79) and, in response to receiving a second response (338) to the second challenge to determine whether the second response is correct, and, in dependence upon the first and second responses being correct, to signal that the transaction is authenticated.