KEY INFORMATION MANAGEMENT DEVICE, KEY INFORMATION MANAGEMENT METHOD, COMPUTER READABLE MEDIUM STORING KEY INFORMATION MANAGEMENT PROGRAM, KEY INFORMATION SHARING METHOD, AND COMPUTER READABLE MEDIUM STORING KEY INFORMATION SHARING PROGRAM

摘要

A key information management device includes a key information distribution unit that distributes, to a mobile terminal, key information for unlocking or activating a vehicle by the mobile terminal transmitting a predetermined transmission signal to the vehicle. The key information distribution unit distributes the key information in which periods of time in which the key information is available overlap, to each of a plurality of mobile terminals. A key information sharing method that is executed by a key information sharing device provided in the mobile terminal includes acquiring key information for unlocking or activating the vehicle by a predetermined transmission signal being transmitted to the vehicle, the key information being distributed from an external device, and transmitting the key information to another mobile terminal or causing the key information to be distributed from the external device according to a predetermined manipulation of a user with respect to the mobile terminal.