Sensor-Module Security Log Generation with Dual Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integrity of logs generated by security sensors in vehicles is compromised during transmission, leading to inaccurate analysis of cyber-attacks due to potential tampering or corruption, which affects the accuracy of data verification and security analysis.
Innovation Solution
A log generation device comprising a sensor module and a log generation module that generates and verifies event data with hash values to ensure the integrity of logs before transmission, using multiple verification steps to confirm the authenticity of the data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If log data is transmitted without verification, then transmission speed is improved, but data integrity and authenticity deteriorate
Solution Approach 1:
The sensor module generates and attaches verification data (hash value) to the log data before transmission. This preliminary verification action ensures data integrity is established prior to transmission, allowing fast transmission without compromising reliability. The verification data is prepared in advance and transmitted alongside the log data, enabling receiving devices to verify integrity without delaying the transmission process.
2Reliability
If multiple verification steps are implemented, then data authenticity is improved, but processing complexity increases
Solution Approach 1:
The verification function is extracted and centralized in the sensor module, which generates verification data independently. The log generation module simply acquires logs from the sensor module and performs verification without needing to implement the full verification mechanism. This extraction reduces processing complexity by separating verification logic from the main log processing flow, while maintaining high data authenticity through specialized verification components.
3Reliability
If verification data is generated for all logs, then data authenticity is improved, but data volume increases
Solution Approach 1:
Verification data is generated locally at the sensor module level for each log entry, allowing efficient verification without requiring extensive data transmission. The verification data is compact and generated only where needed (at the source), maintaining data authenticity while minimizing the increase in data volume. The log generation module processes verification locally, avoiding the need to transmit large verification datasets across the entire system.
Data Source
AI summary
A log generation device includes a sensor module and a log generation module. The sensor module is configured to generate event data indicating an event when detecting the event; generate first verification data for verifying authenticity of the event data; and generate a security log including the event data and the first verification data. The log generation module is configured to acquire the security log generated by the sensor module; generate a second verification data using the event data included in the security log; and verify identity of the first verification data and the second verification data. The log generation device is further configured to transmit the event data when the first verification data and the second verification data are identical.