public static string GetComponent(string sourceFilePath)
{
ClassAID = null;
int offset = 0;
int length = 0;
string component = null;
//int[] sequence = new int[] { 1, 2, 4, 3, 6, 7, 8, 10, 5, 9, 11, 12 };
int[] sequence = new int[] { 1, 2, 4, 3, 6, 7, 8, 10, 5, 9 };
FileStream fs = new FileStream(sourceFilePath, FileMode.Open);
int capSize = Convert.ToInt32(fs.Length);
byte[] byteCapData = new byte[capSize];
fs.Read(byteCapData, offset, capSize);
fs.Close();
string strCapData = ConvertTool.Bytes2String(byteCapData);
for (int i = 0; i < sequence.Length; i++)
{
offset = strCapData.IndexOf("2E636170" + sequence[i].ToString("X2"));
if (offset > -1)
{
length = System.Convert.ToInt32(strCapData.Substring(offset + 10, 4), 16);
component += strCapData.Substring(offset + 8, (length + 3) * 2);
if (sequence[i] == 1) //package aid
{
string temp = strCapData.Substring(offset + 8, (length + 3) * 2);
string len = temp.Substring(24, 2);
PackageAID = temp.Substring(26, (System.Convert.ToInt32(len, 16)) * 2);
}
if (sequence[i] == 3) //class aid
{
string temp = strCapData.Substring(offset + 8, (length + 3) * 2);
string count = temp.Substring(6, 2);
int max = System.Convert.ToInt32(count, 16);
ClassAID = new string [max];
int aidOffset = 4;
int aidLen = 0;
for (int k = 0; k < max; k++)
{
aidOffset = aidOffset + 6 + aidLen * 2;
aidLen = System.Convert.ToInt32(temp.Substring(aidOffset - 2, 2), 16);
ClassAID[k] = temp.Substring(aidOffset, aidLen * 2);
}
}
}
}
SHA1 = Hash_SHA1(component);
string TL = "C4";
string capLen = System.Convert.ToString(component.Length / 2, 16);
if (capLen.Length % 2 != 0)
{
capLen = "0" + capLen;
}
if (component.Length > 510)
{
TL += "82" + capLen;
}
else
{
TL += "81" + capLen;
}
return(TL + component);
}
private static string Hash_SHA1(string data)
{
SHA1 sha = new SHA1CryptoServiceProvider();
return(ConvertTool.Bytes2String(sha.ComputeHash(ConvertTool.String2Bytes(data))));
}