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PSP's new 15 BPS rule

Chicago

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Jan 31, 2005
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It's probably more work than it's worth to make a chip that can act like another chip. But, even if someone does, pop out their chip, put in the chip it's pretending to be, and see if they can still shoot.
 

Gyroscope

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You might be onto something there... rather than just readable chips, make a governor chip that doesn't contain the settings, just the code to make it work. Require them at tournaments. I am talking about gun chips again. Give them RFID (if that isn't too freakin' pricey) so you don't have to remove grip fames before each game.
 

Steve Hancock

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What about forged league chips with cheats on them being substituted for the true ones in the tech area. I suppose you could always confiscate the chips at anytime and replace them with a fresh one then take the suspect chip away for testing. Of course you could always have an other chip hidden in the marker that is the true control chip, and the approved one there just for looks.

I reckon you will never be able to find a final technological solution as technology is constantly developing so there will always be someting new or te cheats to try and the rule-enforcers will have to keep changing the rules and enforcement.

I reckon they got it right.
 

Chicago

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Well, now that WDP's patent apparently got invalidated, it's fairly trivial to see if chips are counterfeit or not. You just give each chip a unique private encryption key and give them a secret model number along with a secret password (both the same for all chips of that model). Only the manufacturer knows what those are, and they put it in non-readable memory on the card. You have "chip validators" which then also have their own private keys (unique to each reader; could even have a set of them) who get the public key from the chip, encode the password and their own key using the chips key, send the password and the reader's public key to the chip, and then the chip uses the sent public key to send the model number back.

Real chips won't send back a model number unless the reader is legit, and only legit readers will have the code to get the chip to send back it's secret model number.
 

Chicago

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Well, at least in the US, if you beleive the SP press release that's been going around. I believe NPF's patents were originally filed in Britain, so I don't know what, if any, effect their invalidation in the US would have in Europe.

I'd agree that the patents should be invalid for obviousness; whether a court actually decided that or not, and whether or not NPF will appeal, who knows.
 
Originally posted by Chicago
Well, now that WDP's patent apparently got invalidated, it's fairly trivial to see if chips are counterfeit or not. You just give each chip a unique private encryption key and give them a secret model number along with a secret password (both the same for all chips of that model). Only the manufacturer knows what those are, and they put it in non-readable memory on the card. You have "chip validators" which then also have their own private keys (unique to each reader; could even have a set of them) who get the public key from the chip, encode the password and their own key using the chips key, send the password and the reader's public key to the chip, and then the chip uses the sent public key to send the model number back.

Real chips won't send back a model number unless the reader is legit, and only legit readers will have the code to get the chip to send back it's secret model number.
I dont get it? How does this help you validate the chip?

What, in your solution is stopping the manufacturers releasing cheat boards??