EMV Cloning/Research

[ncc74656]

So I’m becoming curious about EMV (presumably the right format?) cards, but not credit cards if that makes sense. Specifically, I’m curious about options to investigate things like laundry payment cards and such that use what appears to be a normal EMV chip in them.

Ideally, I’d love to clone them since it’s a little ridiculous to pay $5-10 each if it’s ever lost, but I’d also be interested in seeing what kind of information can be exposed and read from the device.

[amal]

Likely it’s not EMV but something called a stored value card or e-purse. There is also a cipurse standard. Basically the idea is the card carries the value on it.

Is possible to add money in a Mifare DESFire EV1 4K?

You’re talking about a stored value card or purse applications. The DESFire supports a specific file type for this kind of application, and you will need the proper cryptographic key in order to increment or decrement the value of the purse.

Do a search for stored value as I explained it in depth a couple times… somewhere on here hah.

[Pilgrimsmaster]

@amal

somewhere on here hah

Here’s a “recent” one…I searched for laundry, because that’s the one I remembered

IClass card used for laundry credit

There are chips that have “electronic purse” applications. A classic example is the DESFire series of chips, but others have this as well. Basically you define a “purse” application on the card and a chunk of memory is taken and used as a digital purse. Often times the amounts are not encrypted in any way really, just stored in some arbitrary format… but secure keys are needed to increment the purse value (top up) and decrement the purse value (spend). You cannot directly write to the memory spa…

[ncc74656]

Ahhh, thank you both! I looked for EMV and I guess missed Amal’s post, and wouldn’t have found that one. Thank you!!!