mifareClassicAuthenticateBlock method

void mifareClassicAuthenticateBlock(List<Uint8> uid, Uint8 blockNumber, Uint8 keyNumber, List<Uint8> key,)

Authenticate specified block number for a MiFare classic card. uid: A byte array with the UID of the card. block_number: The block to authenticate. key_number: The key type (like MIFARE_CMD_AUTH_A or MIFARE_CMD_AUTH_B). A byte array with the key data.

Implementation

void mifareClassicAuthenticateBlock(
    List<Uint8> uid, Uint8 blockNumber, Uint8 keyNumber, List<Uint8> key) {
  // Build parameters for InDataExchange command to authenticate MiFare card.
  List<int> parameters =
      List.generate(3 + mifareKeyLength + uid.length, (_) => 0);
  parameters[0] = 0x01;
  parameters[1] = keyNumber.value;
  parameters[2] = blockNumber.value;

  // params[3:3+keylen] = key
  for (int i = 0; i < mifareKeyLength; i++) {
    parameters[3 + i] = key[i].value;
  }
  // params[3+keylen:] = uid
  for (int i = 0; i < uid.length; i++) {
    parameters[3 + mifareKeyLength + i] = uid[i].value;
  }

  List<int> response = callPN532Function(pn532CommandInDataExchange,
      parameters: parameters, responseLength: 1);

  if (response.first != pn532ErrorNone) {
    throw PN532BadResponseException(
        response: response,
        additionalInformation:
            "The first byte should be '$pn532ErrorNone' but it was '${response.first}'");
  }
}