I need a barcode that cant be counterfit or something else i can scan and put on a Card?

I need a barcode that cant be counterfit or something else i can scan and put on a Card?
Well i am trying to make a game that will be able to read Cards that have data on it but also do not want it to be duplicated. Barcodes would be awesome since u can scan them, but i don’t want them to be duplicated either. So if anyone has an idea how to either add anti counterfiting to the barcodes or something completely diffrent.

Best answer:

Use RFIDs. Each card will have an RFID chip (like ID cards). You do need an RFID reader in the game though.

Or you can put a 3D watermark on the barcodes (same one they use in Credit cards).

Tags: Barcode, cant, card, counterfit, else, need, scan, something

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