Patent ID: 8800060

Claim:
An information processing device comprising: a storage unit which has first device identification information for identifying the information processing device as a host device and an application program executing predetermined processing; and an authentication management unit which has unique information of the application program, wherein the authentication management unit acquires second device identification information for identifying another information processing device from another information processing device to be connected to the information processing device through a communication path, calculates a first value on the basis of the acquired second device identification information, the first device identification information, and the unique information, generates a first authentication key on the basis of the calculated first value, the first device identification information, and the second device identification information, transmits the generated first authentication key to another information processing device, acquires the second device identification information from another information processing device at every predetermined interval, calculates a second value on the basis of the acquire second device identification information, the first device identification information, and the unique information, compares the calculated second value with the first value of the first authentication key, and when the second value does not coincide with the first value, stops the activation of the application program.