roopehakulinen / cordova-plugin-mifare-ultralight Goto Github PK

It would be useful to get the tag GUID on the mifare.connect() callback.
Found that getId() could be used on the discovered the java Tag object. (see https://developer.android.com/reference/android/nfc/Tag.html)

Hi, when I use window.mifare.read(4, (response) => alert(response.data), err => alert(Reading failed because ${err}));

Is show me this error

Error: java.lang.exeption

Hi !

As long as, in Java, a int has a limited size, the function "intToByteArray" can't handle pin code higher than 2147483647.

I'm a newbie in Java, but is there a way to easily fix it ?

Thank you !

Hello,

You implemented unlockWithPin, and I was wondering if you were opened to a lockWithPin method.

Some good links for it:
https://stackoverflow.com/questions/44395283/how-to-set-and-unset-password-on-a-mifare-ultralight-ev1-tag
https://stackoverflow.com/questions/22719465/ntag212-mifare-ultralight-with-authentication

Unlock

send: Ox1B 0xPIN1 0xPIN2 0xPIN3 0xPIN4
receive: 0xPACK1 0xPACK2
compare PACK1 and PACK2 with values given in lock (or don't compare)

Lock

1. Write PIN

PAGE:
NTAG212 = page 39
MF0UL11 = page 12
MF0UL21 = page 27

send: 0xA2 0xPAGE 0xPIN1 0xPIN2 0xPIN3 0xPIN4

2. Write PIN ACK (PACK)

PAGE:
NTAG212 = page 40
MF0UL11 = page 13
MF0UL21 = page 28

send: 0xA2 0xPAGE 0xPACK1 0xPACK2 0x00 0x00

3. Write protection wanted (PROT)

Protection can be set to 0 (PIN needed for write operations) or 1 (PIN needed for read or write operations)

PAGE:
NTAG212 = page 38, byte 0, bit 7
MF0UL11 = page 11, byte 0, bit 7
MF0UL21 = page 26, byte 0, bit 7

send: 0x30 0xPAGE (get the complete page to only modify wanted bits)
recieve: 0xRES1 0xRES2 0xRES3 0xRES4

ACCESS = 0xRES1 & 0x07F # PIN needed for write
ACCESS = ACCESS | 0x80 # PIN needed for read

send: 0xA2 0xPAGE 0xACCESS 0xRES2 0xRES3 0xRES4

4. Write first page being protected (AUTH0)

PAGE:
NTAG212 = page 37, byte 3
MF0UL11 = page 10, byte 3
MF0UL21 = page 25, byte 3

send: 0x30 0xPAGE (get the complete page to only modify wanted bits)
receive: 0xRES1 0xRES2 0xRES3 0xRES4 ...
send: 0xA2 0xPAGE 0xRES1 0xRES2 0xRES3 0xAUTH0

Hi,

My NFC Card has id : 04416DF27D5780

If I do:

document.addEventListener('mifareTagDiscovered', (tag) => {
    console.log(tag.tag);
})

I get: [4, 65, 109, -14, 125, 87, -128]

Which makes: 04416D-E7D57-80

I've added Log.d(TAG, bytesToHex(tag.getId())); to fireTagEvent to check what id you start with and I have in adb logcat:

02-19 14:08:51.086 25943 26679 D CordovaPluginMifareUltralight: 04416DF27D5780

This means that either byteArrayToJSON or MessageFormat.format has something wrong. Maybe endianness ?
Thanks

Sometimes when quickly removing the mifare tag during writing, the write fails. When this happens 1-3 times in a row, NFC crashes on Android and we need to restart the device. Other apps using NFC are also not working.