private void button1_Click(object sender, EventArgs e)
{
Persistence persistence;
if (File.Exists(filePersistence))
{
persistence = Form1.ReadFromJsonFile <Persistence>(filePersistence);
}
else
{
persistence = new Persistence();
}
String id = MifareTool.ByteArrayToString(mifare.GetUid(), false);
string key;
if (!persistence.idKey.ContainsKey(id))
{
key = Prompt.ShowDialog("Enter Block 2 Key", "Key Required!");
}
else
{
key = persistence.idKey[id];
}
if (mifare.AuthenticateBlock(key, "08"))
{
//save the correct key
if (!persistence.idKey.ContainsKey(id))
{
persistence.idKey.Add(id, key);
Form1.WriteToJsonFile <Persistence>(filePersistence, persistence);
}
//read sector 8
int readValue08 = MifareTool.ConvertBytesToInteger(mifare.ReadValueBlock("08"));
int readValue09 = MifareTool.ConvertBytesToInteger(mifare.ReadValueBlock("09"));
if (readValue08 == readValue09)
{
label1.Text = "Sector 08 == Sector 09";
label1.ForeColor = Color.Green;
}
else
{
label1.Text = "Sector 08 <> Sector 09";
label1.ForeColor = Color.Red;
}
double value = (double)readValue08 / 100;
textBoxValue.Text = String.Format("{0:0.00}", value);
button2.Enabled = true;
}
else
{
MessageBox.Show(this, "Authentication to sector 2 failed!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public Form1()
{
InitializeComponent();
try
{
mifare = new MifareTool();
String[] readers = mifare.GetReaders();
//always connect to first
mifare.Connect(0);
button1.Enabled = true;
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
