Vehicle Control Data Encryption With Failsafe Contamination Detection
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Solution Overview
Problem
Electronic control devices in vehicles, such as ESC and EPB, face issues with unauthorized access and data contamination when interconnected, leading to potential unauthorized control and data exposure.
Innovation Solution
An electronic control apparatus with an encryption module using a master key for encrypting and decrypting data, and a failsafe module for detecting contamination by comparing encrypted and decrypted data, employing the S-DES algorithm to enhance security and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic control devices are interconnected to improve driving stability and control function, then the vehicle control capability is enhanced, but the risk of unauthorized access and data exposure increases
Solution Approach 1:
The patent introduces an encryption module as an intermediary between the communication interface and the control software. This module encrypts data before it is processed by the control software and decrypts incoming data, acting as a mediator that protects the control system from unauthorized access while maintaining the interconnected functionality of electronic control devices
Solution Approach 2:
The patent applies preliminary encryption to data before transmission and storage. By encrypting data in advance using a master key stored in secure memory, the system prevents unauthorized access to sensitive information such as control parameters and calibration data, thereby reducing the risk of unauthorized control before it can occur
2Adaptability or versatility
If data is transmitted and received between electronic control devices, then the control function is enhanced, but data contamination may occur
Solution Approach 1:
The patent implements a failsafe module that continuously monitors data integrity by comparing encrypted data with decrypted data. This feedback mechanism detects contamination or corruption in transmitted data and can trigger error handling procedures, ensuring that compromised data does not affect the control function
Solution Approach 2:
The encryption module serves as an intermediary that not only encrypts/decrypts data but also maintains data integrity through the failsafe module. This intermediary layer protects the control system from data contamination while enabling enhanced control functionality through inter-device communication
3Adaptability or versatility
If EPB data is provided to ESC developer for integration, then the system integration is achieved, but data exposure to unauthorized persons occurs
Solution Approach 1:
The encryption module acts as an intermediary that allows EPB data to be shared with the ESC developer for integration purposes while maintaining security. The data is encrypted using a master key that is securely stored in the ESC module's non-volatile memory, enabling the ESC developer to work with the encrypted data without exposing sensitive information to unauthorized persons
Solution Approach 2:
The system applies preliminary encryption to EPB data before it is provided to the ESC developer. By encrypting the data in advance and storing the master key securely in the ESC module, the system enables system integration while preventing data exposure to unauthorized persons throughout the development and integration process
Data Source
AI summary
Disclosed herein are an electronic control apparatus for a vehicle and a data transmitting and receiving method thereof. The electronic control apparatus for a vehicle in accordance with the present embodiment includes an encryption module configured to encrypt data received from a control software using a master key or decrypt encrypted data received from the outside using the master key, and a failsafe module configured to detect contamination of the data by comparing the encrypted data with the decrypted data.