| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a slot machine making fraudulent acquisition or the like of a command transmitted from a main control board to a sub control board difficult, and preventing a fraud such as playing a game more advantageously than definition. <P>SOLUTION: The slot machine (10) includes the main control board (100) for controlling game progress, the sub control board (200) for controlling game performance, and a random number circuit (90) for outputting random number value information to both of the main and sub boards based on the operation of starting the rotation of a reel. The main control board transmits a command obtained by encrypting various information to the sub control board, and the sub control board performs an AT lottery, performance, or the like according to the received command. Both of the main and sub boards each include an encryption key selecting unit (570, 631) for selecting an encryption key for encrypting and decrypting a command, based on a random number value from the random number circuit. <P>COPYRIGHT: (C)2013,JPO&INPIT |
