• Registered: 2010-03-31
  • Posts: 1

Topic: Mifare Classic 1K Emulator

Hi,

Iam looking for a piece of code which allows me to emulate together with the libNFC + ACR122 an entire 1K Mifare Classic tag. If I have to do that work by my own I will start with the tag emulation example code from the manual ...

http://www.libnfc.org/api/nfc-emulate_8c-source.html

Starting in line 126 we are listen to reader requests and send, depending on the number of bits our tag response. If we will receive i.e. a request for block 0x04 using key A, why is it not possible to send an answer which will be read out of a previously  generated plaintext file ?

Iam new in the RFID business, so dont blame me to much wink

  • rconty
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  • Registered: 2009-04-22
  • Posts: 673

Re: Mifare Classic 1K Emulator

Hello,

nicnoc wrote:

Iam looking for a piece of code which allows me to emulate together with the libNFC + ACR122 an entire 1K Mifare Classic tag. If I have to do that work by my own I will start with the tag emulation example code from the manual ...

There is no more work than nfc-emulate in libnfc but you must know that you can't "correctly" emulate Mifare Classic using ACR122 due to timing issue. The easier device to do this seems to be the Snapper, ATM

nicnoc wrote:

Starting in line 126 we are listen to reader requests and send, depending on the number of bits our tag response. If we will receive i.e. a request for block 0x04 using key A, why is it not possible to send an answer which will be read out of a previously  generated plaintext file ?

AFAIK, it's not a "possibility" problem, nfc-emulate is just a "proof of concept"... an experimental example but a good start for people who want to do more.

Many people are looking for Mifare Classic emulation, so maybe we should start something here..
Does anybody have done some work around this subject ?

Romuald Conty
  • Registered: 2009-11-15
  • Posts: 40

Re: Mifare Classic 1K Emulator

The easier device to do this seems to be the Snapper, ATM

hi rconty !
sorry but .....what do  you have said that snapper is  emulating mifare 1k?
is really success 100%?

developing the future!
  • rconty
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  • Registered: 2009-04-22
  • Posts: 673

Re: Mifare Classic 1K Emulator

*dudux wrote:

sorry but .....what do  you have said that snapper is  emulating mifare 1k?

Your question seems to be "Did you said that Snapper is able to emulate Mifare 1k?", if so, the answer is absolutely not !
I didn't pratice emulation myself wink but talked to Roel and read his answers about this subject and I know that full-emulation can be a problem with device which doesn't provide raw access to pn53x like Touchatag.

*dudux wrote:

is really success 100%?

No, it's a 0% success to emulate Mifare Classic by myself.

Romuald Conty