public byte[] ReadByteBlock(int block, byte[] key, NfcKeyType nfcKeyType)
{
//TODO 4. MIFARE OPERATIONS 2
try
{
//No card found
if (!LoadCurrentMifareClassic())
{
return(null);
}
//Different card ids
if (!CheckCardId())
{
return(null);
}
//No authenticated
if (!AuthenticateSector(block, nfcKeyType, key))
{
return(null);
}
byte[] data = currentMifareClassic.ReadBlock(block);
return(data);
}
catch
{
return(null);
}
}
public static void MifareTest()
{
using (var context = new NfcContext())
using (var device = context.OpenDevice()) // Try to open the NFC reader
{
MifareClassic mfc = new MifareClassic(device);
mfc.InitialDevice();
mfc.SelectCard();
mfc.Authentication(0, KeyType.KeyA, 0xFFFFFFFFFFFFu);
var block0 = mfc.ReadBlock(0);
Program.PrintHex(block0, 16);
mfc.Authentication(1, KeyType.KeyA, 0xFFFFFFFFFFFFu);
mfc.WriteBlock(4, new byte[16] {
1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
});
var block4 = mfc.ReadBlock(4);
Program.PrintHex(block4, 16);
Console.ReadLine();
}
}
public List <byte[]> MifareClassic_ReadSector(MifareClassic mfc, int Sector)
{
int blockCount = mfc.GetBlockCountInSector(Sector);
var lst = new List <byte[]>(blockCount);
int readIndex = mfc.SectorToBlock(1);
for (int i = 0; i < blockCount; i++)
{
lst[i] = mfc.ReadBlock(readIndex);
readIndex++;
}
return(lst);
}
private bool TryAndReadFromTag(Tag tag)
{
MifareClassic mfc = MifareClassic.Get(tag);
byte[] data;
bool auth = false;
try
{
mfc.Connect();
String UID = byte2hex(mfc.Tag.GetId());
String cardData = null;
int secCount = 1;
int bCount = 3; //Just read 2 block for now
int bIndex = 0;
for (int j = 1; j <= secCount; j++)
{
auth = mfc.AuthenticateSectorWithKeyB(j, KEY_DEFAULT);
if (auth)
{
//bCount = mfc.GetBlockCountInSector(j);
bIndex = mfc.SectorToBlock(j);
for (int i = 0; i < bCount; i++)
{
data = mfc.ReadBlock(bIndex);
cardData += Encoding.ASCII.GetString(data);
bIndex++;
}
DisplayMessage(cardData);
mfc.Close();
return(true);
}
else
{
Log.Error(Tag, "Sector read authentication failed");
mfc.Close();
return(false);
}
}
}
catch (Exception e)
{
Log.Error(Tag, e.Message);
}
return(false);
}
private void ReadIcData(Intent intent)
{
m_intent = intent;
ic.icserial = ic.FindIC(m_intent);
Car = new CarInfo(); //初始化一个CarInfo类
//取出封装在intent中的TAG
var tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
if (tag == null)
{
return;
}
m_tag = tag;
#region 清空文本
carNumber = FindViewById <EditText>(Resource.Id.carNumber);
carNumber.Text = "";
#endregion
MifareClassic mfc = MifareClassic.Get(m_tag);
if (mfc != null)
{
#region 获取到tag
try
{
mfc.Connect();
var type = mfc.GetType();
if (type.Equals(typeof(Android.Nfc.Tech.MifareClassic)))
{
#region 循环读取5个扇区数据
for (int i = 0; i < ic.sectors.Length; i++)
{
for (int k = 0; k < 3; k++)
{
int sec = mfc.BlockToSector(ic.sectors[i] * 4 + k);
if (sec < mfc.SectorCount)
{
if (mfc.AuthenticateSectorWithKeyB(sec, ic.ToDigitsBytes(ic.mb)))
{
int c = mfc.SectorCount;
c = mfc.BlockCount;
byte[] data = new byte[16];
data = mfc.ReadBlock(ic.sectors[i] * 4 + k);
if (data != null)
{
ic.IcDatas[i, k] = ic.ToHexString(data);
ic.isReadIcOK = true;
}
else
{
CommonFunction.ShowMessage("读取" + ic.sectors[i].ToString() + "扇区" + Convert.ToString(ic.sectors[i] * 4 + k) + "块失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
else
{
CommonFunction.ShowMessage("密码验证失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
}
}
#endregion
}
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
finally
{
mfc.Close();
}
if (ic.isReadIcOK)
{
try
{
//解析扇区数据
Car = ic.GetCarInfo(ic.IcDatas);
if (Car != null)
{
CommonFunction.ShowMessage("", this, false);
#region 读卡正确，显示在窗体文本内,按钮复活
carNumber.Text = Car.CarPlate;
// carNumber.Text = "GT030108";//暂用
//根据车号查询 相关收发货路线信息
goodsInfo();
#endregion
}
else
{
#region 读卡异常，按钮不可用
btSender.Enabled = false;
btGet.Enabled = false;
CommonFunction.ShowMessage("卡内信息错误！", this, true);
#endregion
}
}
catch (System.ArgumentOutOfRangeException ax)
{
CommonFunction.ShowMessage("读卡信息错误！", this, true);
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
}
#endregion
}
else
{
#region 判断卡类型
btGet.Enabled = false;
btSender.Enabled = false;
btGet.Checked = false;
btSender.Checked = false;
CommonFunction.ShowMessage("不支持该类型的卡", this, true);
ic.isReadIcOK = false;
return;
#endregion
}
}
public List <object> LerTodosOsSetoresDoCartao()
{
byte[] byteRead; // Irá armazenar os byte lidos do cartão
bool auth = false; // Valida se existe ou não permissão para ler o bloco
int quantSetores = 0; // Quantidade de setores existentes no cartão
int blocoCount = 0; // Quantidades de blocos existentes no cartão
int blocoIndex = 0; // Irá armazenar o indice que esta sendo lido do cartão
List <object> ByteRetorno = new List <object>(); // Lista com a leitura de todos os blocos e setores
try
{
// Faz a conexão com o cartão
ValidConexaoCartao();
// Irá armazenar a quantidade de setores existentes no cartão
quantSetores = MifareClassic.BlockSize;
// Percorre todos os setores existentes no cartão
for (int i = 0; i < quantSetores; i++)
{
// Faz a validação de permissão para a leitura do bloco A
auth = ValidPermissaoBlocoA(i);
if (!auth)
{
// Faz a validação de permissão para a leitura do bloco B
auth = ValidPermissaoBlocoB(i);
}
if (auth)
{
// Busca a quanidade de blocos em um setor
blocoCount = mifareClassic.GetBlockCountInSector(i);
// Percore todos os blocos do setor
for (int j = 0; j < blocoCount; j++)
{
// É necessário fazer novamente a validação de permissão Bloco a bloco
// Faz a validação de permissão para a leitura do bloco A
auth = ValidPermissaoBlocoA(j);
if (!auth)
{
// Faz a validação de permissão para a leitura do bloco B
auth = ValidPermissaoBlocoB(j);
}
if (auth)
{
// seta o indice do setor dentro do bloco
blocoIndex = mifareClassic.SectorToBlock(j);
// Faz a leitura de um BLOCO no setor
byteRead = mifareClassic.ReadBlock(blocoIndex);
ByteRetorno.Add(byteRead);
}
}
}
}
}
catch (IOException e)
{
throw new IOException(e.Message);
}
finally
{
// Fecha a conexão com o cartão
DesconectaCartao();
this.GravaTempoFinal();
}
return(ByteRetorno);
}
private void ReadIcData(Intent intent)
{
m_intent = intent;
ic.icserial = ic.FindIC(m_intent);
Car = new CarInfo(); //初始化一个CarInfo类
//取出封装在intent中的TAG
tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
if (tag == null)
{
return;
}
m_tag = tag;
//清空文本
extra_bags.Text = "";
samp_bags.Text = "";
samp_factory.Text = "";
samp_goodsname.Text = "";
samp_carNumber.Text = "";
cmeasure_Id.Text = "";
MifareClassic mfc = MifareClassic.Get(m_tag);
if (mfc != null)
{
#region 获取到tag
try
{
mfc.Connect();
var type = mfc.GetType();
if (type.Equals(typeof(Android.Nfc.Tech.MifareClassic)))
{
#region 循环读取5个扇区数据
for (int i = 0; i < ic.sectors.Length; i++)
{
for (int k = 0; k < 3; k++)
{
int sec = mfc.BlockToSector(ic.sectors[i] * 4 + k);
if (sec < mfc.SectorCount)
{
if (mfc.AuthenticateSectorWithKeyB(sec, ic.ToDigitsBytes(ic.mb)))
{
int c = mfc.SectorCount;
c = mfc.BlockCount;
byte[] data = new byte[16];
data = mfc.ReadBlock(ic.sectors[i] * 4 + k);
if (data != null)
{
ic.IcDatas[i, k] = ic.ToHexString(data);
ic.isReadIcOK = true;
}
else
{
CommonFunction.ShowMessage("读取" + ic.sectors[i].ToString() + "扇区" + Convert.ToString(ic.sectors[i] * 4 + k) + "块失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
else
{
CommonFunction.ShowMessage("密码验证失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
}
}
#endregion
}
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
finally
{
mfc.Close();
}
if (ic.isReadIcOK)
{
try
{
//解析扇区数据
Car = ic.GetCarInfo(ic.IcDatas);
if (Car != null)
{
// CommonFunction.ShowMessage("", this, false);
//将摇号信息写入本地数据表
// isEqualFactory();
#region 读卡正确，显示在窗体文本内,按钮复活
//是否为同一张卡 重复卡不得重复刷
if (!isEqualFactory())
{
samp_carNumber.Text = Car.CarPlate;
// bussnise.Text = Car.BusinessType;
// measuremode.Text = Car.MeasureMode;
cmeasure_Id.Text = Car.MeasureID;
//根据车号和计量单号 从计量系统中查询 采购订单号 供应商编号 供应商名称 货物编号 货物名称等信息
bsif.selectCmInfo(Car.CarPlate, Car.MeasureID, out cMeasureID, out purchaseOrderID, out car_factoryCode, out car_factoryName, out car_goodsCode, out car_goodsName);
samp_factory.Text = car_factoryName;
samp_goodsname.Text = car_goodsName;
}
#endregion
}
else
{
#region 读卡异常，按钮不可用
ToggleButton samp = FindViewById <ToggleButton>(Resource.Id.btExtract);
samp.Enabled = false;
CommonFunction.ShowMessage("卡内信息错误！", this, true);
#endregion
}
}
catch (System.ArgumentOutOfRangeException ax)
{
CommonFunction.ShowMessage("读卡信息错误！", this, true);
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
}
#endregion
}
else
{
#region 判断卡类型
btExtra.Enabled = false;
btExtra.Checked = false;
CommonFunction.ShowMessage("不支持该类型的卡", this, true);
ic.isReadIcOK = false;
return;
#endregion
}
}
private void ReadIcData(Intent intent)
{
m_intent = intent;
ic.icserial = ic.FindIC(m_intent);
Car = new CarInfo(); //初始化一个CarInfo类
//取出封装在intent中的TAG
tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
if (tag == null)
{
return;
}
m_tag = tag;
MifareClassic mfc = MifareClassic.Get(m_tag);
if (mfc != null)
{
#region 获取到tag
try
{
mfc.Connect();
var type = mfc.GetType();
if (type.Equals(typeof(Android.Nfc.Tech.MifareClassic)))
{
#region 循环读取5个扇区数据
for (int i = 0; i < ic.sectors.Length; i++)
{
for (int k = 0; k < 3; k++)
{
int sec = mfc.BlockToSector(ic.sectors[i] * 4 + k);
if (sec < mfc.SectorCount)
{
if (mfc.AuthenticateSectorWithKeyB(sec, ic.ToDigitsBytes(ic.mb)))
{
int c = mfc.SectorCount;
c = mfc.BlockCount;
byte[] data = new byte[16];
data = mfc.ReadBlock(ic.sectors[i] * 4 + k);
if (data != null)
{
ic.IcDatas[i, k] = ic.ToHexString(data);
ic.isReadIcOK = true;
}
else
{
CommonFunction.ShowMessage("读取" + ic.sectors[i].ToString() + "扇区" + Convert.ToString(ic.sectors[i] * 4 + k) + "块失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
else
{
CommonFunction.ShowMessage("密码验证失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
}
}
#endregion
}
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
finally
{
mfc.Close();
}
if (ic.isReadIcOK)
{
ToggleButton samp = FindViewById <ToggleButton>(Resource.Id.btSamp);
//Button samp = FindViewById<Button>(Resource.Id.btSamp);
samp.Enabled = true;
btSamp.SetBackgroundColor(Android.Graphics.Color.ParseColor("#DB3E3E"));
}
else
{
#region 读卡异常，按钮不可用
Button samp = FindViewById <Button>(Resource.Id.btSamp);
samp.Enabled = false;
CommonFunction.ShowMessage("卡内信息错误！", this, true);
#endregion
}
#endregion
}
else
{
#region 判断卡类型
btSamp.Enabled = false;
btSamp.Checked = false;
CommonFunction.ShowMessage("不支持该类型的卡", this, true);
ic.isReadIcOK = false;
return;
#endregion
}
}
private void ReadIcData(Intent intent)
{
m_intent = intent;
ic.icserial = ic.FindIC(m_intent);
Car = new CarInfo(); //初始化一个CarInfo类
//取出封装在intent中的TAG
var tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
if (tag == null)
{
return;
}
m_tag = tag;
#region 清空文本
EditText carinfo = FindViewById <EditText>(Resource.Id.tuCarInfo);
carinfo.Text = "";
EditText bussnise = FindViewById <EditText>(Resource.Id.tuBussnise);
bussnise.Text = "";
EditText measuretype = FindViewById <EditText>(Resource.Id.tuMeasureType);
measuretype.Text = "";
EditText measuremode = FindViewById <EditText>(Resource.Id.tuMeasureMode);
measuremode.Text = "";
EditText measureid = FindViewById <EditText>(Resource.Id.tuMeasureID);
measureid.Text = "";
EditText goodweight = FindViewById <EditText>(Resource.Id.tuGoodWeight);
goodweight.Text = "";
EditText measuredt = FindViewById <EditText>(Resource.Id.tuMeasureDT);
measuredt.Text = "";
EditText buckleweight = FindViewById <EditText>(Resource.Id.eBuckleWeight);
buckleweight.Text = "0";
#endregion
MifareClassic mfc = MifareClassic.Get(m_tag);
if (mfc != null)
{
#region 获取到tag
try
{
mfc.Connect();
var type = mfc.GetType();
if (type.Equals(typeof(Android.Nfc.Tech.MifareClassic)))
{
#region 循环读取5个扇区数据
for (int i = 0; i < ic.sectors.Length; i++)
{
for (int k = 0; k < 3; k++)
{
int sec = mfc.BlockToSector(ic.sectors[i] * 4 + k);
if (sec < mfc.SectorCount)
{
if (mfc.AuthenticateSectorWithKeyB(sec, ic.ToDigitsBytes(ic.mb)))
{
int c = mfc.SectorCount;
c = mfc.BlockCount;
byte[] data = new byte[16];
data = mfc.ReadBlock(ic.sectors[i] * 4 + k);
if (data != null)
{
ic.IcDatas[i, k] = ic.ToHexString(data);
ic.isReadIcOK = true;
}
else
{
CommonFunction.ShowMessage("读取" + ic.sectors[i].ToString() + "扇区" + Convert.ToString(ic.sectors[i] * 4 + k) + "块失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
else
{
CommonFunction.ShowMessage("密码验证失败！", this, true);
ic.isReadIcOK = false;
return;
}
}
}
}
#endregion
}
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
finally
{
mfc.Close();
}
if (ic.isReadIcOK)
{
try
{
//解析扇区数据
Car = ic.GetCarInfo(ic.IcDatas);
if (Car != null)
{
CommonFunction.ShowMessage("", this, false);
#region 读卡正确，显示在窗体文本内,按钮复活
carinfo.Text = Car.CarPlate;
bussnise.Text = Car.BusinessType;
measuretype.Text = Car.MeasurementType;
measuremode.Text = Car.MeasureMode;
measureid.Text = Car.CardID;
goodweight.Text = Car.Gross.ToString();
measuredt.Text = Car.GrossDateTime;
Button unload = FindViewById <Button>(Resource.Id.buUnLoad);
unload.Enabled = true;
unload.SetBackgroundColor(Android.Graphics.Color.ParseColor("#BD2B32"));
unload.SetTextColor(Android.Graphics.Color.ParseColor("#ffffff"));
Button halfreturn = FindViewById <Button>(Resource.Id.buHalfReturn);
halfreturn.Enabled = true;
halfreturn.SetBackgroundColor(Android.Graphics.Color.ParseColor("#BD2B32"));
halfreturn.SetTextColor(Android.Graphics.Color.ParseColor("#ffffff"));
Button allreturn = FindViewById <Button>(Resource.Id.buAllReturn);
allreturn.Enabled = true;
allreturn.SetBackgroundColor(Android.Graphics.Color.ParseColor("#BD2B32"));
allreturn.SetTextColor(Android.Graphics.Color.ParseColor("#ffffff"));
Button unloadandload = FindViewById <Button>(Resource.Id.buUnloadAndLoad);
unloadandload.Enabled = true;
unloadandload.SetBackgroundColor(Android.Graphics.Color.ParseColor("#BD2B32"));
unloadandload.SetTextColor(Android.Graphics.Color.ParseColor("#ffffff"));
#endregion
}
else
{
#region 读卡异常，按钮不可用
Button unload = FindViewById <Button>(Resource.Id.buUnLoad);
unload.Enabled = false;
Button halfreturn = FindViewById <Button>(Resource.Id.buHalfReturn);
halfreturn.Enabled = false;
Button allreturn = FindViewById <Button>(Resource.Id.buAllReturn);
allreturn.Enabled = false;
Button unloadandload = FindViewById <Button>(Resource.Id.buUnloadAndLoad);
unloadandload.Enabled = false;
CommonFunction.ShowMessage("卡内信息错误！", this, true);
#endregion
}
}
catch (System.ArgumentOutOfRangeException ax)
{
CommonFunction.ShowMessage("读卡信息错误！", this, true);
}
catch (Exception ex)
{
CommonFunction.ShowMessage(ex.Message, this, true);
}
}
#endregion
}
else
{
#region 判断卡类型
bunload.Enabled = false;
bhalfreturn.Enabled = false;
ballreturn.Enabled = false;
bunloadandload.Enabled = false;
bunload.Checked = false;
bhalfreturn.Checked = false;
ballreturn.Checked = false;
bunloadandload.Checked = false;
CommonFunction.ShowMessage("不支持该类型的卡", this, true);
ic.isReadIcOK = false;
return;
#endregion
}
}
public byte[] MifareClassic_ReadBlock(MifareClassic mfc, int Block)
{
return(mfc.ReadBlock(Block));
}
