Vehicle Log Data Hierarchical Verification System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional systems for verifying log data in vehicles are inefficient, taking time to detect falsification and failing to secure unaltered data when partial alterations occur.
Innovation Solution
An electronic apparatus and server system that generates and verifies log data using hierarchical verification values and associated information, transmitted to a log server for rapid falsification detection and secure storage, reducing processing time and ensuring integrity of unaltered data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional verification methods are used to check log data integrity, then data security is maintained, but verification time increases significantly
Solution Approach 1:
The patent divides log data into multiple groups and generates separate verification values for each group. This segmentation allows the server to verify multiple log entries in parallel operations rather than sequentially, significantly reducing verification time while maintaining integrity checking for all data
Solution Approach 2:
The patent pre-generates verification values and stores them alongside log data before transmission to the server. This preliminary preparation eliminates the need for complex real-time verification calculations on the server side, reducing processing time while ensuring data integrity can be quickly confirmed
2Reliability
If all log data is verified to ensure complete integrity, then data security is improved, but unaltered data cannot be secured when partial alterations occur
Solution Approach 1:
By dividing log data into groups with individual verification values, the system can identify exactly which group contains altered data. This allows unaltered groups to be secured and retained, preventing loss of valid information while still detecting security breaches in affected segments
Solution Approach 2:
The patent introduces verification values as intermediary elements that mediate between log data and integrity verification. These intermediaries enable partial verification of specific data groups without requiring complete re-verification of all data, allowing secure retention of unaltered portions
Data Source
AI summary
According to one embodiment, an electronic apparatus used in a vehicle generates a first to fourth log of the vehicle for a first to fourth period, a first to fourth code used to validity of the first to fourth log, a fifth code used to collectively determine a validity of the first log and the second log, a sixth code used to collectively determine a validity of the third log and the fourth log, and a seventh code used to collectively determine a validity of the first to fourth logs, and transmits the first to seventh codes to a server, and transmits the first to fourth logs to the server after a transmission of the first to seventh codes.