Vehicle Door Unlocking With Dynamic Password Authentication
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Solution Overview
Problem
Traditional vehicle door unlocking methods using mobile devices rely on fixed passwords, which are vulnerable to theft and password cracking, compromising security.
Innovation Solution
A method is introduced where a vehicle generates a dynamic password based on real-time dynamic information, such as communication status and vehicle parameters, and uses this to create a reference key for secure unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed password is used for mobile device verification, then the ease of operation is improved, but the security is worsened
Solution Approach 1:
The patent applies dynamics by transitioning from a static fixed password to a dynamic password that changes based on vehicle status parameters (speed, acceleration, steering angle, brake status). The dynamic password is generated in real-time using these vehicle parameters, making the authentication credential adaptive and time-sensitive, thereby resolving the contradiction between ease of operation and security.
Solution Approach 2:
The patent implements parameter changes by using vehicle status parameters (speed, acceleration, steering angle, brake status) as inputs to generate the dynamic password. These physical parameters change continuously during vehicle operation, and their changes directly affect the generated password, creating a security mechanism that is inherently tied to the actual vehicle state and difficult to replicate.
2Reliability
If a dynamic password based on vehicle parameters is used, then the security is improved, but the device complexity is worsened
Solution Approach 1:
The patent uses the vehicle's existing status parameters (speed, acceleration, steering angle, brake status) as intermediaries to generate the dynamic password. These parameters are already being collected by the vehicle's control systems for normal operation, so they serve as convenient mediators that bridge the gap between vehicle operation data and security authentication without requiring additional specialized sensors or complex hardware.
Solution Approach 2:
The system implements self-service by utilizing the vehicle's own operational parameters to generate its own authentication credential. The vehicle essentially authenticates itself by using its own status data (speed, acceleration, steering, brake information) to create the dynamic password, eliminating the need for external authentication servers or complex third-party verification systems.
Data Source
AI summary
A method of unlocking a vehicle door, including generating a dynamic password based on dynamic information by a vehicle chip, then generating a reference key based on the dynamic password, and storing the reference key in a storage medium; updating the dynamic password stored in a server, and according to the request of the mobile device, providing the dynamic password to the mobile device through the server, and the mobile device generating a mobile key according to the dynamic password. Finally, the reference key and the mobile key are compared, and if the dynamic passwords corresponding to the reference key and the mobile key are the same, the vehicle door corresponding to the vehicle chip is unlocked by the vehicle chip.