Electronic key management device, electronic key management system, electronic key management method, and storage medium

An electronic key management method that causes a computer to:

• generate at least one of a first execution key and a second execution key for obtaining a permission for transiting to a registration mode for registering an electronic key of a vehicle in an in-vehicle authentication device or to an invalidation mode for invalidating the electronic key registered in the in-vehicle authentication device, in response to a predetermined request;
• transmit the generated first execution key to a first terminal device;
• and
• transmit the generated second execution key to a second terminal device that is a terminal device different from the first terminal device and is registered in advance as a terminal device of an authorized owner, wherein the first terminal device and the second terminal device are distinct from the vehicle and in-vehicle authentication device.

A computer-readable non-transitory storage medium storing a program that causes a computer to:

• generate at least one of a first execution key and a second execution key for obtaining a permission for transiting to a registration mode for registering an electronic key of a vehicle in an in-vehicle authentication device or to an invalidation mode for invalidating the electronic key registered in the in-vehicle authentication device, in response to a predetermined request;
• transmit the generated first execution key to a first terminal device;
• and
• transmit the generated second execution key to a second terminal device that is a terminal device different from the first terminal device and is registered in advance as a terminal device of an authorized owner, wherein the first terminal device and the second terminal device are distinct from the vehicle and in-vehicle authentication device.