Copy protection method and system for programmable gate array

A system comprising:

• a field-programmable gate array;
• a memory device that stores a user circuit data and a control program data that includes a first startup key code string and a first authentication circuit data;
• and
• a first circuit connected to the memory device and the field-programmable gate array,
• wherein the first circuit comprises:
• a first startup key information that is pre-programmed;
• a determination circuit that determines a determination result by comparing a decrypted first startup key code string with the first startup key information;
• a first boot circuit that receives the determination result from the determination circuit, wherein when the determination result is incorrect, the first boot circuit resets the field-programmable gate array, and when the determination result is correct, the first boot circuit boots the user circuit data to the field-programmable gate array;
• the memory device further comprises a second startup key code string and a second authentication data;
• the first circuit comprises a second startup key information compared with a decryption result of the second startup key code string transmitted from the field-programmable gate array,
• wherein when the determination result is correct, the first boot circuit boots the second key code string and the second authentication circuit date to the field-programmable gate array,
• the decryption processing circuit decrypts the second startup key code string transmitted from the field-programmable gate array, and
• the determination circuit determines a second determination result by comparing the decrypted second startup key code string with the second startup key information, when the second determination result is correct, the first boot circuit boots the user circuit date to the field-programmable gate array, and when the determination result is incorrect, the first boot circuit resets the field-programmable gate array,
• wherein the first circuit comprises a user-specific gate array.