Vehicular Data Isolation Device for Secure Retrofit
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Solution Overview
Problem
Modern vehicle electronics systems face challenges in securely regulating data communications between vehicle electronics and external computing devices, as existing defensive mechanisms can be difficult to retrofit with updated security features, leaving them vulnerable to unauthorized access.
Innovation Solution
A dynamic isolation device is introduced that selectively permits data communication based on the identity of the computing device, data content, or rate, using microprocessors and memory devices connected via a communication bus, and can be easily installed in existing vehicles to enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If defensive mechanisms are integrated into vehicle electronics during design, then security against unauthorized access is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent introduces an isolation device as an intermediary component positioned between the vehicle electronics system and external computing devices. This mediator regulates data communications by filtering and controlling access based on identity verification, data content analysis, and transmission rate monitoring, thereby providing security without requiring modification of the core vehicle electronics architecture.
Solution Approach 2:
The patent segments the communication system into distinct functional zones: the vehicle electronics system, the isolation device, and external computing devices. The isolation device itself is segmented into multiple regulatory functions (identity verification, content filtering, rate control) that operate independently, allowing security to be enhanced without increasing the complexity of individual components.
2Reliability
If updated defensive mechanisms are implemented in existing vehicles, then security is improved, but retrofitting difficulty increases
Solution Approach 1:
The isolation device serves as a standalone intermediary that can be added to existing vehicles without modifying the original vehicle electronics. It connects between the vehicle's data port and external devices, providing updated security mechanisms as a plug-and-play solution that bypasses the need to retrofit complex defensive mechanisms into legacy systems.
Solution Approach 2:
The isolation device is designed as a universal component that can be retrofitted to various vehicle models and electronics systems. It performs multiple security functions (authentication, content filtering, rate limiting) in a single device, making it adaptable to different vehicle platforms without requiring custom integration for each model.
3Reliability
If data communication is regulated based on identity, content, and rate, then unauthorized access is prevented, but data transmission efficiency decreases
Solution Approach 1:
The isolation device applies partial regulation by selectively controlling data transmission based on specific criteria (identity, content, rate) rather than blocking all communication. It allows authorized data to pass through with minimal interference while only applying restrictive actions when security concerns are detected, thus maintaining efficiency for legitimate communications while ensuring security.
Solution Approach 2:
The system implements feedback mechanisms where the isolation device continuously monitors data communications and dynamically adjusts regulation based on detected patterns. It learns from communication behavior and can distinguish between legitimate high-rate transmissions and potential attacks, allowing efficient passage of normal data while blocking anomalous traffic.
Data Source
AI summary
A system and method of regulating data communications between a vehicle electronics system and a computing device includes: communicatively linking a first data port of an isolation device with the vehicle electronics system; communicatively linking a second data port of the isolation device with the computing device; receiving data at the isolation device sent between the computing device and the vehicle electronics system; and permitting the data to pass through the isolation device based on the identity of the computing device, the rate at which the data passes through the isolation device, or the content of the data.