GAME MACHINE, MAIN CONTROL PART, MAIN CONTROL BOARD, INTERMEDIATE PART, PERIPHERAL BOARD, AUTHENTICATION METHOD AND AUTHENTICATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To reduce the processing load of a CPU of a peripheral part by detecting a fraud by replacement or the like of a regular main control board of a game machine with a fraudulent main control board and malfunction of the game machine. SOLUTION: A main control part of this game machine includes: an inspection value generator which executes dyadic operations using data acquired by dividing prescribed data stored in a data storage to produce a plurality of inspection values; and a dummy data generator which produces the number of dummy data corresponding to the number of the divided data: adds each of the plurality of inspection values to a control signal to transmit it to an intermediate part: and then adds the dummy data to the control command to transmit it to the intermediate part. The intermediate part has an authenticator which authenticates the main control part based on whether or not operation values acquired by executing a plurality of dyadic operations using the prescribed data stored in the data storage, are accorded with operation results acquired by executing the diadic operations using the plurality of inspection values transmitted from the main control part and which identifies a dummy data attached control signal and an authentication data attached control signal on the basis of the number of the dummy data certified based on the number of inspection values, or the objects of the dyadic operations when the authentication is succeeded. COPYRIGHT: (C)2011,JPO&INPIT