FIELD: game devices, such as game machines, in particular for methods for ensuring authenticity of game software.
SUBSTANCE: safe smart-card or different safe memory device is inserted into port of controller board positioned inside the game machine. Smart-card is programmed for detection of encrypted "request" from CPU host processor and for dispensing an encrypted "response". If host processor determines that response matches expected characteristics, CPU considers the software to be authentic and game begins. Request-response exchange may be performed before beginning of each game on a machine or at any other time. If the response is wrong, host CPU outputs a command to stop the game. Control of access to appropriately programmed smart-card allows prevention of execution of unauthorized copies of game software by game machine.
EFFECT: prevented unsanctioned changing, copying and unsanctioned usage of game software.
2 cl, 13 dwg
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