public static void DecodeViewState(byte[] protectedData, string strMachineKeysFilePath, string strValidationAlgorithm, string strDecryptionAlgorithm, string modifier, string strPurpose)
{
if (File.Exists(strMachineKeysFilePath))
{
Console.Write("\n\nDecode process start!!\n\n");
string[] machineKeys = File.ReadAllLines(strMachineKeysFilePath);
int nIndex = 1;
foreach (string strLine in machineKeys)
{
Console.ForegroundColor = ConsoleColor.Blue;
Console.Write("\rPocessing machinekeys : {0}/{1}....", nIndex++, machineKeys.Length);
string[] values = strLine.Split(',');
string strValidationKey = values[0];
string strDecryptionKey = values[1];
string strDecodedData = ViewStateHelper.DecodeData(strValidationKey, strValidationAlgorithm, protectedData, modifier);
if (!String.IsNullOrEmpty(strDecodedData))
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("\n\nKeys found!!");
Console.WriteLine("------------");
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine("DecryptionKey:" + strDecryptionKey);
Console.WriteLine("ValidationKey:" + strValidationKey);
DataWriter.WriteKeysToFile(strValidationKey, strDecryptionKey, strValidationAlgorithm, strDecryptionAlgorithm, null);
DataWriter.WritePurposeToFile(strPurpose);
Console.WriteLine("\n\nEncodedDataWithoutHash:" + strDecodedData);
Console.ResetColor();
break;
}
}
}
}
public static bool DecodeViewState(byte[] protectedData, string strMachineKeysFilePath, string modifier, string strPurpose)
{
bool bFound = false;
if (File.Exists(strMachineKeysFilePath))
{
Console.Write("\n\nDecode process start!!\n\n");
string[] machineKeys = File.ReadAllLines(strMachineKeysFilePath);
foreach (string strDecryptionAlgorithm in ContantValue.arrayDecryptionAlgo)
{
foreach (string strValidationAlgorithm in ContantValue.arrayValidationAlgo)
{
int nIndex = 1;
foreach (string strLine in machineKeys)
{
try
{
Console.ForegroundColor = ConsoleColor.Blue;
Console.Write("\rPocessing machinekeys {0},{1}: {2}/{3}..............", strDecryptionAlgorithm, strValidationAlgorithm, nIndex++, machineKeys.Length);
string[] values = strLine.Split(',');
string strValidationKey = values[0];
string strDecryptionKey = values[1];
string strDecodedData = ViewStateHelper.DecodeData(strValidationKey, strValidationAlgorithm, protectedData, modifier);
if (!String.IsNullOrEmpty(strDecodedData))
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("\n\nKeys found!!");
Console.WriteLine("------------");
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine("DecryptionKey:" + strDecryptionKey);
Console.WriteLine("ValidationKey:" + strValidationKey);
DataWriter.WriteKeysToFile(strValidationKey, strDecryptionKey, strValidationAlgorithm, strDecryptionAlgorithm, null);
DataWriter.WritePurposeToFile(strPurpose);
Console.WriteLine("\n\nEncodedDataWithoutHash:" + strDecodedData);
Console.ResetColor();
bFound = true;
break;
}
}
catch (Exception e)
{
Console.WriteLine("Error Decoding ViewState: " + e);
}
}
if (bFound)
{
break;
}
}
if (bFound)
{
break;
}
}
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write("\n\nKey path file {0} not found!!\n\n", strMachineKeysFilePath);
Console.ResetColor();
}
return(bFound);
}
