Connected Car Authentication via Dynamic QR Code

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Solution Overview

Problem

Conventional connected vehicle authentication systems are cumbersome and insecure when the service terminal cannot communicate with the external network, requiring users to call a call center or display fixed authentication codes, which can lead to delays and security risks.

Innovation Solution

An authentication system that uses a service terminal to display a dynamically generated optically readable code, such as a QR code, containing encrypted vehicle and terminal identification information, allowing users to scan and transmit this code for authentication, even without network connectivity, and automatically requesting network subscription if needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a fixed authentication code is displayed on the service terminal, then user authentication can be performed without network connectivity, but security problems arise due to leakage of the authentication code

Engineering Contradiction:

Improveauthentication capability without networkVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The authentication code changes dynamically based on the vehicle identification number and terminal identification number. Instead of using a fixed code, the system generates a unique authentication code for each vehicle-terminal combination, making the code dynamic and adaptive to different contexts, thereby improving security while maintaining ease of operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The authentication code is customized for each specific vehicle and terminal combination. By incorporating the vehicle identification number and terminal identification number into the authentication code generation, the system creates locally unique authentication credentials for each user context, preventing widespread security vulnerabilities from a single fixed code.

Inventive Principle:

Principle #3Local quality

2Ease of operation

If the service terminal calls the call center counselor to submit documents for authentication, then user authentication can be performed without network connectivity, but the process becomes cumbersome and time-consuming

Engineering Contradiction:

Improveauthentication capability without networkVSAvoidauthentication time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system enables self-service authentication by allowing users to scan the authentication code with their own terminal devices. This eliminates the need for manual document submission to call center counselors, automating the authentication process and significantly reducing both complexity and time requirements.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical process of calling a counselor and submitting physical documents is replaced with an automated optical scanning system. The authentication code can be scanned by user terminals to automatically transmit authentication information, substituting human intervention with an automated technical system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the service terminal displays a fixed authentication code, then user authentication can be performed without network connectivity, but security risks increase due to code leakage

Engineering Contradiction:

Improveauthentication without networkVSAvoidsecurity risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The authentication code transitions from a static fixed value to a dynamic value that changes based on vehicle and terminal identification. This dynamic nature ensures that even if one authentication code is compromised, it cannot be reused for other vehicles or terminals, significantly reducing security risks while maintaining adaptability for offline authentication.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the parameters used to generate the authentication code by incorporating the vehicle identification number and terminal identification number. This parameter transformation creates a unique authentication credential for each vehicle-terminal pair, reducing security risks associated with code leakage while maintaining versatility for offline authentication.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11882440B2Authentication system and method for connected car service

Publication Date: 2024.01.23 HYUNDAI MOTOR CO LTD

AI summary

An embodiment user authentication system for a connected vehicle service includes a service terminal configured to encrypt first vehicle identification information comprising identification information of a vehicle system and terminal identification information comprising identification information of the service terminal to generate a service identification (ID) comprising identification information of the connected vehicle service, and to display the service ID on a display screen as an optically readable code, and a user terminal configured to receive the service ID by scanning the code and to transmit the received service ID to a service server through an external network to request a user authentication.