private void buttonXmlToTlv_Click(object sender, EventArgs e)
{
TlvData tlv = null;
var isDone = TryAndOutput(() =>
{
var serializer = new XmlSerializer(typeof(TlvData));
tlv = (TlvData)serializer.Deserialize(new StringReader(textSource.Text));
});
if (!isDone)
{
return;
}
ConvertAndOutput(() => tlv.ToByteArray().ToHexa());
}
/// <summary>
/// Builds DGI to be used with STORE DATA command for given records having the same index.
/// </summary>
/// <param name="sfi"></param>
/// <param name="index"></param>
/// <param name="records"></param>
/// <returns></returns>
public string BuildDgi(byte sfi, byte index, IEnumerable <PseRecord> records)
{
var tlv70 = new TlvData(0x70, new List <TlvData>());
foreach (var record in records)
{
var tlvs = new List <TlvData> {
new TlvData {
Tag = 0x4F, Value = record.AdfName.FromHexa()
},
new TlvData {
Tag = 0x50, Value = record.ApplicationLabel.FromString()
}
};
if (!String.IsNullOrWhiteSpace(record.PreferredName))
{
tlvs.Add(new TlvData {
Tag = 0x9F12, Value = record.PreferredName.FromString()
});
}
if (record.PriorityIndicator.HasValue)
{
tlvs.Add(new TlvData {
Tag = 0x87, Value = record.PriorityIndicator.Value.ToByteArray()
});
}
if (!String.IsNullOrWhiteSpace(record.DiscretionaryData))
{
tlvs.Add(new TlvData {
Tag = 0x73, Value = record.DiscretionaryData.FromHexa()
});
}
var tlv61 = new TlvData(0x61, tlvs);
tlv70.InnerTlvs.Add(tlv61);
}
var dgiLength = TlvDataHelper.ToBerEncodedL((uint)tlv70.Length / 2);
return($"{sfi:X2}{index:X2}{dgiLength.ToHexa('\0')}{tlv70.ToByteArray().ToHexa()}");
}
/// <summary>
/// Process the GET PROCESSING OPTIONS phase of an EMV transaction.
/// </summary>
/// <returns>Last status word.</returns>
public UInt16 GetProcessingOptions()
{
BeforeGetProcessingOptionsEvent.Raise(this, new EmvEventArgs());
// If PDOL 9F38 is not supplied in FCI, then used 8300 as UDC; if supplied: build the PDOL in tag 83 L V
byte[] pdolDataValue;
if (TlvFci.HasTag(0x9F38))
{
// Use PDOL to build tag 83 value
var pdol = new DataObjectList(TlvFci.GetTag(0x9F38).Value);
var tlvAll = new List <TlvData> {
TlvFci
};
tlvAll.AddRange(TlvTerminalData);
pdolDataValue = pdol.BuildData(tlvAll);
}
else
{
pdolDataValue = new byte[0];
}
// Build tag 83 with computed value
var tlvPdolData = new TlvData(0x83, (uint)pdolDataValue.Length, pdolDataValue);
// Execute GET PROCESSING OPTIONS
var cAPDU = new CommandAPDU(0x80, 0xA8, 0x00, 0x00, tlvPdolData.Length + 2, tlvPdolData.ToByteArray(), 0);
var crp = new CommandResponsePair(cAPDU);
crp.Transmit(_cardChannel);
_lastStatusWord = crp.RApdu.StatusWord;
// If GET RESPONSE needed, do it
if (crp.RApdu.Sw1 == 0x61)
{
_tlvProcessingOptions = new TlvData();
crp = new CommandResponsePair(new GetResponseCommand(crp.RApdu.Sw2));
crp.Transmit(_cardChannel);
_lastStatusWord = crp.RApdu.StatusWord;
}
// Finally, store result
if (crp.RApdu.StatusWord == 0x9000)
{
_tlvProcessingOptions = new TlvData(crp.RApdu.Udr);
}
AfterGetProcessingOptionsEvent.Raise(this, new EmvEventArgs());
return(_lastStatusWord);
}