ATM Controller NFC Session Key for Vehicle Infotainment Banking
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Solution Overview
Problem
Existing vehicle infotainment systems face challenges in securely connecting with external ATMs due to limitations in Bluetooth and Wi-Fi range, leading to potential security risks and difficulties in ensuring the correct customer is using the ATM for transactions.
Innovation Solution
Implementing near-field communication (NFC) for close-range authentication between a nomadic device and an ATM, combined with Bluetooth or Wi-Fi for longer-range communication, to establish a secure link and control ATM transactions from a vehicle infotainment system, ensuring the customer's proximity and identity through a session key and PIN verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If Bluetooth or Wi-Fi is used for vehicle-ATM communication, then communication range is extended, but security risk increases due to inability to verify customer proximity
Solution Approach 1:
The communication system is segmented into two distinct layers: NFC for close-range authentication and Bluetooth/Wi-Fi for data transmission. This segmentation allows each layer to perform its specialized function optimally - NFC verifies proximity through inductive coupling requiring physical contact, while Bluetooth/Wi-Fi handles the actual banking data exchange over longer distances.
Solution Approach 2:
The NFC interaction acts as an intermediary authentication step between the customer and the ATM system. Before allowing Bluetooth or Wi-Fi communication to proceed with sensitive banking operations, the NFC module verifies the customer's physical presence through inductive coupling, serving as a trusted mediator that bridges the security gap between long-range communication and proximity verification.
2Reliability
If NFC is used for close-range authentication, then security is improved by verifying customer proximity, but communication range is limited
Solution Approach 1:
The communication system is segmented into two distinct layers: NFC for close-range authentication and Bluetooth/Wi-Fi for data transmission. This segmentation allows each layer to perform its specialized function optimally - NFC verifies proximity through inductive coupling requiring physical contact, while Bluetooth/Wi-Fi handles the actual banking data exchange over longer distances.
Solution Approach 2:
NFC authentication is performed as a preliminary action before initiating Bluetooth or Wi-Fi communication. The inductive coupling verification occurs first to establish customer proximity and identity, creating a security foundation that enables subsequent long-range communication to proceed with verified authorization.
3Ease of operation
If long-range wireless communication is used, then convenience is improved by allowing remote operation, but unauthorized access risk increases
Solution Approach 1:
The NFC interaction acts as an intermediary authentication step between the customer and the ATM system. Before allowing Bluetooth or Wi-Fi communication to proceed with sensitive banking operations, the NFC module verifies the customer's physical presence through inductive coupling, serving as a trusted mediator that bridges the security gap between long-range communication and proximity verification.
Solution Approach 2:
The system applies preliminary anti-action by preemptively verifying customer identity and proximity through NFC before allowing any long-range communication to occur. This preventive measure counteracts potential unauthorized access attempts by ensuring that only authenticated users can initiate Bluetooth or Wi-Fi based transactions.
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 solution enhances security and convenience by ensuring only the correct vehicle is connected to the ATM, preventing unauthorized access and ensuring funds are released only when the customer is physically present, thus mitigating security risks and operational inconveniences.
Implementation Method 1
The controller may be configured to transmit via inductive coupling a session key in response to receiving a signal from a nomadic device
Implementation Method 2
The controller may then establish a connection with a vehicle infotainment system (VIS) using the session key
Data Source
AI summary
An automated teller machine includes a controller. The controller may be configured to transmit via inductive coupling a session key in response to receiving a signal from a nomadic device. The controller may then establish a connection with a vehicle infotainment system (VIS) using the session key and receive from the VIS, a PIN number and a request to dispense funds via the connection. After which, the controller may inhibit release of the funds until a confirmation is received via inductive coupling from the nomadic device.