Vehicle Data Watermarking for Misuse Detection
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Solution Overview
Problem
Vehicle data transmitted over vehicle networks is vulnerable to misuse if intercepted or observed, potentially leading to reverse engineering of proprietary algorithms or training of neural networks.
Innovation Solution
A digital watermark is applied to vehicle data to protect it from misuse, with a watermark identifier sent to the cloud for later detection of misused data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicle data is transmitted over vehicle networks for processing and sharing, then productivity and functionality are improved, but the data becomes vulnerable to interception and misuse
Solution Approach 1:
A digital watermark is applied to vehicle data before it is transmitted over the vehicle network. This preliminary action embeds identification information into the data, enabling later detection of interception or misuse without affecting the data's functionality or transmission.
Solution Approach 2:
A watermark identifier acts as an intermediary element that is embedded within the vehicle data. This identifier serves as a traceable marker that allows the system to detect whether data has been intercepted or misused, without interfering with the normal data processing and transmission operations.
2Reliability
If digital watermarking is applied to vehicle data, then data protection capability is improved, but system complexity increases
Solution Approach 1:
The watermarking function is extracted as a separate, dedicated component that operates independently from the main vehicle data processing system. This allows the watermarking operation to be performed without complicating the core data processing logic, maintaining system simplicity while adding protection capability.
Solution Approach 2:
The digital watermark modifies subtle parameters of the vehicle data (such as metadata or least significant bits) rather than fundamentally changing the data structure. This approach provides protection while minimizing the impact on system complexity and maintaining data functionality.
3Measurement precision
If watermark identifier is communicated to external location, then detection capability is improved, but communication security requirements increase
Solution Approach 1:
The watermark identifier is communicated to an external location in advance, before any potential misuse occurs. This preliminary communication establishes a reference that enables later detection of interception or unauthorized use, improving detection capability while using existing communication infrastructure.
Data Source
AI summary
A method and apparatus for protecting vehicle data from a vehicle includes identifying the vehicle data to be included in output from a processor that is designated for protection, selecting a digital watermark based on a manner in which the output is subject to at least one of observation or interception, applying the digital watermark to the vehicle data to obtain watermarked output for output from the processor, and communicating a watermark identifier over a communication link of the vehicle to a location external from the vehicle. Detection of the digital watermark in data outside of the vehicle based upon the watermark identifier may be used to determine misuse of the vehicle data.