Electronic Key Registration Security Level Adaptation
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Solution Overview
Problem
Existing electronic key registration systems lack a secure and flexible method to determine the appropriate security level for key registration, leading to potential security vulnerabilities in varying environments, such as online and offline registrations.
Innovation Solution
The system employs a dual registration code approach, where a first registration code (C1) is used for low-security environments and a second registration code (C2) for high-security environments, with a level determination unit to select the appropriate code based on the registration environment, ensuring optimal security levels for both specific and random ECU registrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single registration code is used for all ECU registrations, then the system is simple to operate, but the security level cannot be adapted to different registration environments
Solution Approach 1:
The registration code is segmented into multiple types (first registration code for low-security environments and second registration code for high-security environments). This segmentation allows the system to adapt to different security requirements without requiring a completely different registration mechanism for each environment.
Solution Approach 2:
The system dynamically selects the appropriate registration code type based on the registration environment and security level determination. The level determination unit assesses the environment and chooses between first and second registration codes, making the security level adaptable rather than fixed.
2Reliability
If high security level is applied to all registrations, then security is maximized, but registration convenience is reduced
Solution Approach 1:
Different security levels are applied locally based on the specific registration environment rather than uniformly across all registrations. Low-security environments use first registration codes with simpler procedures, while high-security environments use second registration codes with stricter verification, optimizing both security and convenience for each context.
3Adaptability or versatility
If multiple registration codes are implemented, then security flexibility is improved, but system complexity increases
Solution Approach 1:
The level determination unit acts as an intermediary that automatically selects the appropriate registration code type based on the registration environment. This intermediary component manages the complexity of having multiple code types by providing a unified interface for code selection, reducing the burden on users to manually choose the correct code type.
Data Source
AI summary
An electronic key registration system includes an electronic key and a communication master. The electronic key transmits a registration code. The communication master receives the registration code from the electronic key, obtains key information using the registration code, and registers the key information. The registration code is set in accordance with the communication master to which the electronic key is registered. The communication master includes a level determination unit, which determines a key registration security level when the electronic key is registered to the communication master, and a registration execution unit, which obtains the key information using the registration code based on the determined key registration security level and registers the key information to the communication master.