internal void AddRemovedTag(TlvData tagData)
{
removedTags[tagData.GetTag()] = tagData;
}
public static EmvData ParseTagData(string tagData, bool verbose)
{
tagData = tagData.ToUpper();
EmvData rvalue = new EmvData();
for (int i = 0; i < tagData.Length;)
{
try {
string tagName = tagData.Substring(i, 2);
i = i + 2;
if ((Convert.ToInt32(tagName, 16) & 0x1F) == 0x1F)
{
tagName += tagData.Substring(i, 2);
i = i + 2;
}
string lengthStr = tagData.Substring(i, 2);
i = i + 2;
int length = Convert.ToInt32(lengthStr, 16);
if (length > 127)
{
int bytesLength = length - 128;
lengthStr = tagData.Substring(i, bytesLength * 2);
i = i + (bytesLength * 2);
length = Convert.ToInt32(lengthStr, 16);
}
length *= 2;
string value = tagData.Substring(i, length);
i = i + length;
if (!blackList.ContainsKey(tagName))
{
TlvData approvedTag = new TlvData(tagName, lengthStr, value, knownTags[tagName]);
if (tagName.Equals("5F28") && !value.Equals("840"))
{
rvalue.SetStandInStatus(false, "Card is not domestically issued");
}
else if (tagName.Equals("95"))
{
byte[] valueBuffer = StringUtils.BytesFromHex(value);
byte[] maskBuffer = StringUtils.BytesFromHex("FC50FC2000");
for (int idx = 0; idx < valueBuffer.Length; idx++)
{
if ((valueBuffer[idx] & maskBuffer[idx]) != 0x00)
{
rvalue.SetStandInStatus(false, string.Format("Invalid TVR status in byte {0} of tag 95", idx + 1));
}
}
}
else if (tagName.Equals("9B"))
{
byte[] valueBuffer = StringUtils.BytesFromHex(value);
byte[] maskBuffer = StringUtils.BytesFromHex("E800");
for (int idx = 0; idx < valueBuffer.Length; idx++)
{
if ((valueBuffer[idx] & maskBuffer[idx]) != maskBuffer[idx])
{
rvalue.SetStandInStatus(false, string.Format("Invalid TSI status in byte {0} of tag 9B", idx + 1));
}
}
}
rvalue.AddTag(approvedTag);
}
else
{
rvalue.AddRemovedTag(tagName, lengthStr, value, blackList[tagName]);
}
}
catch (FormatException) { }
catch (IndexOutOfRangeException) { }
}
if (verbose)
{
Console.WriteLine("Accepted Tags:");
foreach (string tagName in rvalue.GetAcceptedTags().Keys)
{
TlvData tag = rvalue.GetTag(tagName);
bool appendBinary = dataTypes.ContainsKey(tagName);
Console.WriteLine(string.Format("TAG: {0} - {1}", tagName, tag.GetDescription()));
Console.WriteLine(string.Format("{0}: {1}{2}\r\n", tag.GetLength(), tag.GetValue(), appendBinary ? string.Format(" [{0}]", tag.GetBinaryValue()) : ""));
}
Console.WriteLine("Removed Tags:");
foreach (string tagName in rvalue.GetRemovedTags().Keys)
{
TlvData tag = rvalue.GetRemovedTags()[tagName];
Console.WriteLine(string.Format("TAG: {0} - {1}", tagName, tag.GetDescription()));
Console.WriteLine(string.Format("{0}: {1}\r\n", tag.GetLength(), tag.GetValue()));
}
}
return(rvalue);
}
internal void AddTag(TlvData tagData)
{
tlvData[tagData.GetTag()] = tagData;
}
