Digital Key Sharing Control for Secure Home-to-Home Vehicle Service
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Solution Overview
Problem
The existing digital key management methods for home-to-home (H2H) services face security concerns, inconvenience in key management, and potential misuse due to the need for direct handover of smart keys and the limitations of mobile communication terminal-based digital keys.
Innovation Solution
A digital key management method that utilizes a management server to assign and manage digital keys for H2H services, allowing secure sharing and activation of digital keys among pick-up drivers and mechanics, while restricting authority and monitoring usage to prevent misuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a smart key is handed over directly to a pick-up driver for H2H service, then the service can be performed, but security concerns arise because the smart key is used as a final authentication means
Solution Approach 1:
The patent segments the authentication process by separating the smart key from the vehicle authentication system. Instead of direct smart key-to-vehicle communication, an intermediate server system is introduced that manages digital keys and authentication protocols, dividing the security function across multiple components (server, mobile terminal, vehicle system).
Solution Approach 2:
The patent introduces a server as an intermediary between the smart key holder and the vehicle. The server receives authentication requests, validates digital keys, and coordinates the authentication process, preventing direct exposure of the smart key to potential attackers while enabling service performance.
2Ease of operation
If a mobile communication terminal-based digital key is used for vehicle access, then convenience is improved and telecommunication costs are reduced, but the risk of replay attacks and vehicle theft increases
Solution Approach 1:
The patent implements preliminary authentication actions before vehicle access is granted. The server verifies the digital key's validity, checks for replay attacks, and establishes secure communication channels before allowing the mobile terminal to access the vehicle, preventing unauthorized access while maintaining convenience.
Solution Approach 2:
The patent establishes a feedback mechanism where the server continuously monitors authentication attempts, validates digital key transactions, and provides real-time verification responses. This feedback loop detects and prevents replay attacks by verifying each authentication request's uniqueness and validity.
3Adaptability or versatility
If digital keys are generated infinitely for a single vehicle, then sharing flexibility is improved, but key management difficulty increases
Solution Approach 1:
The patent introduces a server as an intermediary that centralizes digital key management. The server generates, stores, and manages all digital keys for a vehicle, allowing infinite key generation for sharing purposes while the server maintains centralized control and tracking, preventing management complexity from escalating.
Solution Approach 2:
The patent creates a universal key management system that handles multiple functions through a single platform: key generation, key distribution, key revocation, and authentication verification. This multi-functional approach allows flexible sharing while consolidating management tasks in one centralized system.
4Adaptability or versatility
If encrypted text messages are used for digital key provision, then vehicle sharing is enabled, but decryption by unauthorized parties becomes possible
Solution Approach 1:
The patent replaces traditional encrypted text message transmission with a more secure authentication mechanism. Instead of relying on message encryption that can be decrypted, the system uses cryptographic protocols, digital signatures, and secure key exchange mechanisms that provide stronger security guarantees while enabling vehicle sharing.
Data Source
AI summary
A digital key management method for a home-to-home (H2H) service includes: applying, by a service applicant, for the H2H service to a management server through an application (app) on a terminal of the service applicant; selecting, by the management server, a pick-up driver for picking up a vehicle and allowing a digital key of the vehicle to be shared and activated; handing over the vehicle by the pick-up driver to a mechanic using the activated digital key; allowing, by the management server, the digital key to be shared and activated through an app on a terminal of the mechanic; handing over the vehicle by the mechanic to the pick-up driver after performing repair and maintenance on the vehicle using the activated digital key; and dropping the vehicle off by the pick-up driver at a location desired by the service applicant.