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RFID seems like it wouldn't be practical... how do you keep players from reading the signals?
by dwighttk 7y ago
RFID seems like it wouldn't be practical... how do you keep players from reading the signals?
- BigJono 7y agoClose range sensors and secure transmissions. As long as the reader has to be within a couple of centimetres of the cards there's really nothing other players at the table can do to get the data that isn't obvious. It's not like you can lean over the table and scan your opponent's cards with your phone without raising a few eyebrows. I'd guess the transmission of the card data from the table to the servers for the broadcast wasn't secure. Either because someone involved set it up that way on purpose to cheat, or because they had a 'password123' sort of password on it without thinking.
- Someone 7y agoHave the RFID chip not return its unique ID, but encrypt(concat(ID, random())) or encrypt(concat(ID, chip’s internal counter value())) where encrypt is a good asymmetric cipher.