protected ASN1 Find(ASN1 asn, byte[] tag, ref bool found)
{
ASN1 result = null;
if(CompareArray(asn.Tag, tag))
{
found = true;
return asn;
}
if (asn.Count > 0)
{
foreach (ASN1 asn1 in asn.elist)
{
result = Find(asn1, tag, ref found);
if (found)
break;
}
}
return result;
}
public ASN1 Add(ASN1 asn1)
{
if (asn1 != null)
{
if (elist == null)
elist = new ArrayList();
elist.Add(asn1);
}
return asn1;
}
private void s_Card(ASN1 record)
{
{
foreach (ASN1 ad in record)
{
byte nm = 0x5A;//, nn = 0x5f, h = 0x20;
if (ad.Tag[0] == nm)
{
StringBuilder sb = new StringBuilder();
foreach (byte b in ad.Value)
{
sb.AppendFormat("{0:X2}", b);
}
string res = "" ,result = sb.ToString();
res = result.Insert(5, "*").Insert(6, "*").Insert(7,"*");
this.Invoke((MethodInvoker)delegate
{
lblCardNo.Text = res;
});
}
}
}
}
public void ReadCard(object ob)
{
string selectedReader = ob as string;
ASN1 daTa = null;
List<String[]> la = new List<string[]>();
List<byte[]> pseIdentifiers = new List<byte[]>();
List<byte[]> applicationIdentifiers = new List<byte[]>();
ASCIIEncoding encoding = new ASCIIEncoding();
APDUCmd apdu = null;
APDURes response = null;
bool pseFound = false;
pseIdentifiers.Add(encoding.GetBytes("1PAY.SYS.DDF01"));
pseIdentifiers.Add(encoding.GetBytes("2PAY.SYS.DDF01"));
try
{
// Now lets process all Payment System Environments
if (pseIdentifiers.Count > 0)
{
cardReaderList.Connect(selectedReader);
foreach (byte[] pse in pseIdentifiers)
{
apdu = new APDUCmd(0x00, 0xA4, 0x04, 0x00, pse, (byte)pse.Length);
response = cardReaderList.Transmit(apdu);
// Get response nescesary
if (response.SW1 == 0x61)
{
apdu = new APDUCmd(0x00, 0xC0, 0x00, 0x00, null, response.SW2);
response = cardReaderList.Transmit(apdu);
}
// PSE application read found ok
if (response.SW1 == 0x90)
{
pseFound = true;
daTa = new ASN1(response.Data);
byte sfi = new ASN1(response.Data).Find(0x88).Value[0];
byte recordNumber = 0x01;
byte p2 = (byte)((sfi << 3) | 4);
while (response.SW1 != 0x6A && response.SW2 != 0x83)
{
apdu = new APDUCmd(0x00, 0xB2, recordNumber, p2, null, 0x00);
response = cardReaderList.Transmit(apdu);
// Retry with correct length
if (response.SW1 == 0x6C)
{
apdu = new APDUCmd(0x00, 0xB2, recordNumber, p2, null, response.SW2);
response = cardReaderList.Transmit(apdu);
}
if (response.SW1 == 0x61)
{
apdu = new APDUCmd(0x00, 0xC0, 0x00, 0x00, null, response.SW2);
response = cardReaderList.Transmit(apdu);
}
if (response.Data != null)
{
ASN1 aefVal = new ASN1(response.Data);
foreach (ASN1 appTemplate in aefVal)
{
// Check we really have an Application Template
if (appTemplate.Tag[0] == 0x61)
{
applicationIdentifiers.Add(appTemplate.Find(0x4f).Value);
}
}
}
recordNumber++;
}
}
if (pseFound)
break;
}
cardReaderList.Disconnect();
}
if (applicationIdentifiers.Count > 0)
{
foreach (byte[] AID in applicationIdentifiers)
{
List<AppliFileLoc> applicationFileLocators = new List<AppliFileLoc>();
StringBuilder sb = new StringBuilder();
cardReaderList.Connect(selectedReader);
// Select AID
apdu = new APDUCmd(0x00, 0xA4, 0x04, 0x00, AID, (byte)AID.Length);
response = cardReaderList.Transmit(apdu);
// Get response nescesary
if (response.SW1 == 0x61)
{
apdu = new APDUCmd(0x00, 0xC0, 0x00, 0x00, null, response.SW2);
response = cardReaderList.Transmit(apdu);
}
// Application not found
if (response.SW1 == 0x6A && response.SW2 == 0x82)
continue;
if (response.SW1 == 0x90)
{
foreach (byte b in AID)
{
sb.AppendFormat("{0:X2}", b);
}
daTa = new ASN1(response.Data);
// Get processing options (with empty PDOL)
apdu = new APDUCmd(0x80, 0xA8, 0x00, 0x00, new byte[] { 0x83, 0x00 }, 0x02);
response = cardReaderList.Transmit(apdu);
// Get response nescesary
if (response.SW1 == 0x61)
{
apdu = new APDUCmd(0x00, 0xC0, 0x00, 0x00, null, response.SW2);
response = cardReaderList.Transmit(apdu);
}
if (response.SW1 == 0x90)
{
ASN1 template = new ASN1(response.Data);
ASN1 aipVal = null;
ASN1 aflVal = null;
// Primative response (Template Format 1)
if (template.Tag[0] == 0x80)
{
byte[] tempAIP = new byte[2];
Buffer.BlockCopy(template.Value, 0, tempAIP, 0, 2);
aipVal = new ASN1(0x82, tempAIP);
byte[] tempAFL = new byte[template.Length - 2];
Buffer.BlockCopy(template.Value, 2, tempAFL, 0, template.Length - 2);
aflVal = new ASN1(0x94, tempAFL);
}
// constructed data object response (Template Format 2)
if (template.Tag[0] == 0x77)
{
aipVal = template.Find(0x82);
aflVal = template.Find(0x94);
}
// Chop up AFL's
for (int i = 0; i < aflVal.Length; i += 4)
{
byte[] AFL = new byte[4];
Buffer.BlockCopy(aflVal.Value, i, AFL, 0, 4);
AppliFileLoc fileLocator = new AppliFileLoc(AFL);
applicationFileLocators.Add(fileLocator);
}
ASN1 aipafl = new ASN1(response.Data);
foreach (AppliFileLoc file in applicationFileLocators)
{
int rec = file.FirstRecord;// read SDA records
int lrec = file.LastRecord;
byte p2 = (byte)((file.SFI << 3) | 4);
while (rec <= lrec)
{
apdu = new APDUCmd(0x00, 0xB2, (byte)rec, p2, null, 0x00);
response = cardReaderList.Transmit(apdu);
// Retry with correct length
if (response.SW1 == 0x6C)
{
apdu = new APDUCmd(0x00, 0xB2, (byte)rec, p2, null, response.SW2);
response = cardReaderList.Transmit(apdu);
}
ASN1 record = new ASN1(response.Data);
s_Card(record);
getVal(record);
rec++;
}
}
}
else
{
UpdateStatusLabel(String.Format("Record not found."));
}
}
else
{
UpdateStatusLabel(String.Format("File not selected."));
}
cardReaderList.Disconnect();
UpdateStatusLabel(String.Format("Process Complete."));
}
}
}
catch (CardDExcep ex)
{
UpdateStatusLabel(ex.Message);
return;
}
}
private void getVal(ASN1 record)
{
string nm = "5F20";
byte mm = 0x2F;
StringBuilder sb = new StringBuilder();
foreach (ASN1 ad in record)
{
foreach (byte b in ad.Tag)
{
sb.AppendFormat("{0:X2}", b);
}
string result = sb.ToString();
if (nm == result)
{
sb = new StringBuilder();
foreach (byte n in ad.Value)
{
if (n == mm)
break;
else
sb.AppendFormat("{0:X2}", n);
}
string jk = sb.ToString();
byte[] result1 = new byte[jk.Length / 2];
for (int i = 0; i < jk.Length; i += 2)
{
result1[i / 2] = byte.Parse(jk.Substring(i, 2), NumberStyles.HexNumber);
}
this.Invoke((MethodInvoker)delegate
{
lblCHNm.Text = encoding.GetString(result1);
});
}
}
}
