GAME MACHINE, AUTHENTICATION METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To solve the problem of restriction in designing inevitably caused by a larger strength of security in the conventional game machines.SOLUTION: In addition to the purpose of attesting the authenticity of connection devices for a CPU, a control command for controlling a performance processing pertaining to a game and a control data and the first authentication data for attesting own authenticity are outputted from the main control part 2a. A peripheral part 3a outputs the first authentication data while controlling the execution of the performance processing based on the control command. An authentication part 3b authenticates the main control part 2a based on the first authentication data and generates the second authentication data when it is authentic. The peripheral part 3a authenticates the main control part 2a based on the second authentication data generated and makes a notification to the effects if it is determined not to be authentic. This can reduce the burden on the peripheral part as compared with the case of making the peripheral part carry out all of the processing for the authentication, thereby enabling the determination on whether the main control part is authentic or not with a larger strength of security than ever.