Remote Tachograph Control With Driver Card Authentication
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Solution Overview
Problem
Existing tachographs have user interfaces that are not user-friendly, leading to data entry mistakes and security concerns due to the risk of 'man-in-the-middle' attacks, especially with Bluetooth-based external device interfaces.
Innovation Solution
A control unit in the vehicle enables remote control of the tachograph using in-vehicle hardware, such as biometric authentication and a secure CAN connection, ensuring driver identity verification and secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth-based external device interface is used for tachograph control, then ease of operation is improved, but security is worsened due to risk of man-in-the-middle attacks
Solution Approach 1:
The patent introduces an intermediary authentication mechanism using the driver card as a trusted mediator between the external device and the tachograph. The driver card verifies the identity of the user attempting to connect via Bluetooth, ensuring that only authenticated drivers can establish connections. This intermediary layer prevents man-in-the-middle attacks while maintaining the ease of wireless operation.
Solution Approach 2:
The patent implements preliminary authentication action by requiring the driver to insert their driver card into the tachograph before any Bluetooth connection can be established. This preliminary action of card insertion and authentication occurs before the actual remote control operation begins, ensuring security is established in advance while allowing subsequent ease of operation through authenticated wireless connection.
2Reliability
If driver authentication is implemented for remote control, then security is improved, but device complexity is worsened
Solution Approach 1:
The patent implements self-service authentication where the driver card automatically provides identification and authentication data when inserted into the tachograph. The system uses the driver's existing card without requiring additional authentication devices or complex verification procedures. This self-service approach maintains security while minimizing the added complexity by leveraging already-available driver identification.
3Ease of operation
If in-vehicle display interface is used for tachograph control, then ease of operation is improved, but security is worsened without proper authentication
Solution Approach 1:
The patent requires preliminary authentication via driver card insertion before enabling control through the in-vehicle display interface. This preliminary action ensures that only authenticated drivers can access and control the tachograph through the convenient in-vehicle interface, maintaining security while preserving ease of operation for authorized users.
4Reliability
If driver card authentication is required for Bluetooth pairing, then security is improved, but ease of operation is worsened
Solution Approach 1:
The patent uses the driver card's existing identification data to automatically authenticate Bluetooth connections without requiring manual pairing codes or additional authentication steps. The driver card serves itself to verify the driver's identity and authorize the connection, maintaining security while minimizing the operational burden on the user.
Data Source
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Figure 3B
AI summary
The present disclosure relates to techniques in the context of vehicles, and more specifically to methods, for use in a tachograph and in a control unit arranged in a vehicle, for remotely controlling the tachograph from the control unit. According to a first aspect a method comprises communicating S21, S23 pairing request and a pairing accept between the tachograph 20 and the control unit 10 to enter a paired state. The method further comprises receiving S25 a message identifying a driver card inserted in the tachograph, obtaining S26 authentication data of a driver present in the vehicle, and authenticating S28 the driver present in the vehicle by comparing the obtained authentication data with driver identity data of the inserted driver card obtained from a driver database. The method further comprises entering S210 a remote-control state in which the control unit is enabled to remotely control the tachograph via the secure connection, in response to the authenticating S28 being successful. The disclosure also relates to a control unit or tachograph configured to perform the corresponding methods, to a vehicle comprising the control unit, to a computer program and to a computer-readable medium.