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Biffbarf
February, 2025

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RFID card cloning/encoding

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SlushSeason
Posts: 1087 - Karma: 8,814
Has anyone here ever messed around with trying to replicate RFID cards? I'm talking specifically with regards to the modern ski pass RFID readers.
Are there different standards, or will the gates at the resort be able to read any RFID card in the right frequency range?
I'm thinking of trying to replicate an invalid ski pass, but information online seems pretty sparse. Honestly idk if I even need to clone/encode a pass or if a blank RFID card will work just as well since I want the gate to detect the card and not open
Mar 24 2024 11:18PM
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steezytangerine
Posts: 402 - Karma: 2,577
SlushSeasonHas anyone here ever messed around with trying to replicate RFID cards? I'm talking specifically with regards to the modern ski pass RFID readers.
Are there different standards, or will the gates at the resort be able to read any RFID card in the right frequency range?
I'm thinking of trying to replicate an invalid ski pass, but information online seems pretty sparse. Honestly idk if I even need to clone/encode a pass or if a blank RFID card will work just as well since I want the gate to detect the card and not open


dont deal with the devil
Mar 25 2024 11:03AM
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GayWolf420
Posts: 37920 - Karma: 127,426
The Gang gets blacklisted from Alterra and Vail Resorts.
Mar 25 2024 7:51PM
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SlushSeason
Posts: 1087 - Karma: 8,814
Hopefully not, but maybe. And it won't be somewhere owned by Vail or Alterra so it should be pretty localized
I'm trying to make something that returns a signature like a pass, but isn't valid. Preventing the gates from opening
GayWolf420The Gang gets blacklisted from Alterra and Vail Resorts.
Mar 25 2024 8:25PM
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cyphers
Posts: 1807 - Karma: 20,609
most rfid gates are made by skidata. their encoding is proprietary so i doubt any amount of research would get you anywhere. but i’d guess that any card with a bit of random data would give an invalid error. blank card prob wouldn’t do anything at all.

you can buy bare skidata reader boards on ebay. idk if they would be of any use for testing tho.
Mar 25 2024 9:48PM
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HypeBeast
Posts: 9958 - Karma: 74,887
SlushSeasonHopefully not, but maybe. And it won't be somewhere owned by Vail or Alterra so it should be pretty localized
I'm trying to make something that returns a signature like a pass, but isn't valid. Preventing the gates from opening

Why are you wanting to do this? For what purpose?
Mar 26 2024 3:00AM
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SlushSeason
Posts: 1087 - Karma: 8,814
cyphersmost rfid gates are made by skidata. their encoding is proprietary so i doubt any amount of research would get you anywhere. but i’d guess that any card with a bit of random data would give an invalid error. blank card prob wouldn’t do anything at all.

you can buy bare skidata reader boards on ebay. idk if they would be of any use for testing tho.

The gates at the mountains I'll be at are made by Axess. I found the RFID specs they use, but yeah the actual information transmitted is probably proprietary.
I think that "blank" cards come with some placeholder data on them so that the RFID encoder can recognize that there's a card there. I'll probably just buy some of the ultra cheap stick-on RFID tags and give them a try
Mar 26 2024 10:33AM
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SlushSeason
Posts: 1087 - Karma: 8,814
I want to trigger constant error codes in the fast-pass line
HypeBeastWhy are you wanting to do this? For what purpose?
Mar 26 2024 10:39AM
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cyphers
Posts: 1807 - Karma: 20,609
SlushSeasonI want to trigger constant error codes in the fast-pass line


thats funny as fuck. keep us updated
Mar 26 2024 10:41AM
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ColoradoDogfart
Posts: 2473 - Karma: 29,754
This is kind of a tangent but I wonder how easy it is to clone someone's pass using something like a flipper zero and a blank signal card. I wouldn't think its be that hard since a pass being scanned should emit a signal that can be copied
Mar 26 2024 10:09PM
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SlushSeason
Posts: 1087 - Karma: 8,814
From a very cursory reddit browsing, it looks like people haven't had much luck getting a response from the pass with the flipper. I don't know enough about it to guess why though. The passes use the same 13.56 Mhz frequency as NFC
ColoradoDogfartThis is kind of a tangent but I wonder how easy it is to clone someone's pass using something like a flipper zero and a blank signal card. I wouldn't think its be that hard since a pass being scanned should emit a signal that can be copied
Mar 26 2024 10:36PM
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