mifare

This question is specifically about MIFARE Ultralight C/EV1, or MIFARE DESFire EV1, or even NTAG cards. I want to implement a system of tokens, so that each time a normal user reads one of those cards they'll get one available token; that token will "pop out" from the NFC card they're reading. In other words, every time that NFC chip is read, it will issue a different usable token from the card's storage. Is this possible to implement? Common non-programmable smart cards usually provide one of (or some combination) of the following: fuse bits -- a memory area where values of individual bits

What I am trying to achieve is to send APDU command to MIFARE Classic 1K card to change its A and B keys. I was able to establish a connection with the card and use a default key ( FFFFFFFFFFFF ) to read block 0 and block 1. I used HID MifareSamples application for it. Now, I would like to change A key from default to something else. I found a solution here, at stackoverflow ( Mifare Change KEY A and B ) which suggests that I have to send this APDU: New key A = 00 11 22 33 44 55 Access bits not overwritten Key B not used (so FF FF FF FF FF FF) => Write to Sector Trailer 00 11 22 33 44 55 FF 0F

Does Windows Phone 8 NFC support Mifare Ultralight/Classic based tags? I use this code to access NFC device on Nokia Lumia 920 (code example was taken from NDEF Tag Reader – NFC NDEF Tag Reader ) public partial class MainPage : PhoneApplicationPage { public MainPage() { InitializeComponent(); ProximityDevice device = ProximityDevice.GetDefault(); device.DeviceArrived += DeviceArrived; device.DeviceDeparted += DeviceDeparted; device.SubscribeForMessage("NDEF", MessageReceived); } private void DeviceArrived(ProximityDevice sender) { // this event occurs when I am tapping any of my tags (tried 5

I have a question, it is possible know the code source of explain th type of tag NFC that I read? If is a Mifare 1k or Ntag203 or another else? protected void onNewIntent(Intent intent){ String[] techList = tag.getTechList(); for(String tech:techList) { //I think must insert here the code } } Fingerprinting of NFC tags is not quite easy. Most tags don't just tell you "I am XY". Moreover, for certain tag technologies there exist many different tags from several different manufacturers. E.g. NFC Forum Type 2 tags are made by NXP, Infineon, Kovio and others. Finding out if a tag is MIFARE Classic

My aim is to have only KEY A authentification and disable Key B (used space to store data). I read these documentations: http://www.nxp.com/documents/data_sheet/MF1S503x.pdf http://dangerousthings.com/wp-content/uploads/2012/08/NFC-Access-Control-for-Mifare-S50.pdf I understand how to calculate the hexadecimal values of these three bytes. But I don't understand how to choose the good data block and access byte rules : Data Block rule Here, I want to keep only key A (R & Write data) and deactivate Key B. I choosed the first rule: C1=0 C2= C3=0. Is this right? Access byte rule I would like to