| 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 power source on-command for designating the application or the initialization of the power source and the first authentication data for attesting own authenticity are outputted from the main control part 2a. A peripheral part 3a, which receives the outputs from the main control part 2a as its inputs, outputs the first authentication data while controlling the execution of the processing based on the power source on-command. The peripheral part 3a determines whether the main control part 2a is authentic or not, based on the second authentication data to be generated and outputted by an intermediate part 3b and makes a notification to the effects if it is determined not to be authentic. The intermediate part generates intermediate data for the determination on the authenticity of the main control part to 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. |
