Vehicle Digital Key Exchange via Cloud Intermediary

The patent introduces a server as an intermediary that automatically manages the digital key exchange process. The server receives the complex digital identification key from the main user, stores it securely, and automatically transmits it to the secondary user through their mobile device. This intermediary system eliminates the need for manual copying while ensuring accurate and secure transfer, resolving the contradiction between ease of operation and reliability.

The patent replaces the manual mechanical process of copying keys (typing or pasting complex characters) with an automated electronic system. The digital key is transmitted programmatically through the server and mobile application, substituting the error-prone manual copying process with an automated digital transmission that ensures accuracy and eliminates user errors.

The server acts as an intermediary that handles the complex encrypted key, preventing users from directly interacting with it. The key remains complex for security purposes, but the server manages its transmission automatically, so users never need to manually handle the complex characters. This resolves the contradiction by maintaining security through complexity while eliminating operational difficulties.

The system enables self-service key exchange where the mobile application automatically receives and processes the digital key without requiring user intervention for copying or pasting. The application handles the complex encrypted characters autonomously, allowing users to benefit from high security without suffering from the operational complexity that would result from manual handling.

The patent utilizes mobile phones, which are already universally carried by users, as the platform for key exchange. The dedicated application on the mobile device serves multiple functions: it acts as a digital wallet for storing the key, a communication interface with the server, and an access control mechanism for the vehicle. This multi-functionality approach maintains security while avoiding the need for users to carry additional specialized devices.

The patent merges the key storage, key exchange, and vehicle access functions into a single mobile application. Instead of requiring separate devices for key management and vehicle access, the system combines these functions in one application that runs on the user's existing mobile device, thereby reducing overall system complexity while maintaining security.