RFID Guardian Use-Casino

From RFID Wiki

It is not surprising to ¯nd RFID tags in casinos, because the entertainment industry drives technological innovations. By putting RFID tags into their gambling chips, the operators can spot counterfeiting and theft, and also monitor the behaviour of gamblers. Originally the gaming industries im- plemented RFID technology with 125 KHZ in 1995, but soon they found that the speed for counting chips was too low, so they changed to a higher frequency | 13.56 MHz, and this proved to be a success. Their devices can now read 1,000 chips per second and the memory capacity is over 10,000 bits, which is five times the capacity of the nearest low frequency.

UML Object Model

UML Sequence Model

Sample ACL

###################
# Casino 
###################

# By default, we leave RFID traffic alone
rule P15693 ACCEPT
{
	context = *;
	role = *;
	tags = *;
	query = { command = *; };
};

# We would like to block all queries to our tags
rule P15693 DENY
{
	context = *;
	role = *;
	tags = @MY_TAGS;
	query = { command = *; };
};

Note that this ACL is shorter than previous ones and contains no reader names or tag names. This is because the user (a gambler) is carrying the RFID Guardian and the gambler does not own the poker chips, or the read- ers; these are both owned by casinos. Therefore, RFID Guardian only has to protect only the user's own tags. It is unclear whether the casino reader will authenticate itself to the Guardian but if it does this authentication procedure fails and Guardian will treat the Casino Reader as an unknown reader.