- sectorIndex
- index of sector to authenticate, starting from 0
- key
- 6-byte authentication key
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Type Reason Android.Nfc.TagLostException if the tag leaves the field Java.IO.IOException if there is an I/O failure, or the operation is canceled
Authenticate a sector with key B.
Successful authentication of a sector with key B enables other I/O operations on that sector. The set of operations granted by key B depends on the ACL bits set in that sector. For more information see the MIFARE Classic specification on .
A failed authentication attempt causes an implicit reconnection to the tag, so authentication to other sectors will be lost.
This is an I/O operation and will block until complete. It must not be called from the main application thread. A blocked call will be canceled with Java.IO.IOException if MifareClassic.Close is called from another thread.
Requires the NoType:android/Manifest$permission;Href=../../../../reference/android/Manifest.permission.html#NFC permission.