/// <summary>
/// HOWTO: Enter the algorithm you'd like to implement in this method.
/// </summary>
public void Execute()
{
Double[,] BigraphStat;
string BsPath;
int matrixSize;
ProgressChanged(0, 1);
// Check settings
if (settings.HeapSize < 1)
{
System.Windows.MessageBox.Show("Heap size has to be a positiv integer!\nHeap size is set to 5000");
settings.HeapSize = 5000;
}
// BigraphStatistic.CreateBS(@"c:\Documents and Settings\PT7130\My Documents\Visual Studio 2010\Projects\Cryptool2\trunk\CrypPlugins\PlayfairAnalysis\Data\", 6);
if (settings.UseCustomStatistic == 1) // Use Bigraph Statistic that is generated by PlayfairAnalysisStatistic plugin
{
int alphabetLength;
int offset = 0;
using (CStreamReader reader = CustomLogStat.CreateReader())
{
alphabetLength = (int)reader.ReadByte();
matrixSize = (int)(Math.Sqrt(alphabetLength));
BigraphStat = new Double[(int)Math.Pow(matrixSize, 2), (int)Math.Pow(matrixSize, 2)];
byte[] statisticBuffer = new byte[8 * BigraphStat.Length];
alphabet = "";
for (int i = 0; i < alphabetLength; i++)
{
alphabet += (char)reader.ReadByte();
}
reader.ReadFully(statisticBuffer, offset, 8 * BigraphStat.Length);
for (int i = 0; i < (int)Math.Pow(matrixSize, 2); i++)
{
for (int j = 0; j < (int)Math.Pow(matrixSize, 2); j++)
{
BigraphStat[i, j] = BitConverter.ToDouble(statisticBuffer, offset);
offset += 8;
}
}
}
GuiLogMessage("MatrixSize: " + Convert.ToString(matrixSize), NotificationLevel.Info);
GuiLogMessage("Custom Bigraph Stat successfully set", NotificationLevel.Info);
}
else // Read Bigraph Statistic from xml file
{
switch (settings.MatrixSize)
{
case 0:
if (settings.Language == 0)
{
BsPath = @"c:\Documents and Settings\PT7130\My Documents\Visual Studio 2010\Projects\Cryptool2\trunk\CrypPlugins\PlayfairAnalysis\Data\BSLog10sde.xml";
}
else
{
BsPath = @"c:\Documents and Settings\PT7130\My Documents\Visual Studio 2010\Projects\Cryptool2\trunk\CrypPlugins\PlayfairAnalysis\Data\BSLog10seng.xml";
}
matrixSize = 5;
alphabet = "ABCDEFGHIKLMNOPQRSTUVWXYZ";
break;
case 1:
if (settings.Language == 0)
{
BsPath = @"c:\Documents and Settings\PT7130\My Documents\Visual Studio 2010\Projects\Cryptool2\trunk\CrypPlugins\PlayfairAnalysis\Data\BSLog10lde.xml";
}
else
{
BsPath = @"c:\Documents and Settings\PT7130\My Documents\Visual Studio 2010\Projects\Cryptool2\trunk\CrypPlugins\PlayfairAnalysis\Data\BSLog10leng.xml";
}
matrixSize = 6;
alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
break;
default:
BsPath = @"c:\Documents and Settings\PT7130\My Documents\Visual Studio 2010\Projects\Cryptool2\trunk\CrypPlugins\PlayfairAnalysis\Data\BSLog10sde.xml";
matrixSize = 5;
alphabet = "ABCDEFGHIKLMNOPQRSTUVWXYZ";
break;
}
BigraphStat = new Double[(int)Math.Pow(matrixSize, 2), (int)Math.Pow(matrixSize, 2)];
System.Xml.Serialization.XmlSerializer ReadBS = new System.Xml.Serialization.XmlSerializer(typeof(Double[][]));
System.Xml.XmlReader XmlReader = System.Xml.XmlReader.Create(BsPath);
Double[][] BigraphStatDummy = (Double[][])ReadBS.Deserialize(XmlReader);
XmlReader.Close();
for (int i = 0; i < Math.Pow(matrixSize, 2); i++)
{
for (int j = 0; j < Math.Pow(matrixSize, 2); j++)
{
BigraphStat[i, j] = BigraphStatDummy[i][j];
}
}
GuiLogMessage("MatrixSize: " + Convert.ToString(matrixSize), NotificationLevel.Info);
GuiLogMessage("Bigraph statistics loaded: " + BsPath, NotificationLevel.Info);
}
GuiLogMessage("Starting Analysis", NotificationLevel.Info);
KeySearcher keySearcher = new KeySearcher(matrixSize, settings.HeapSize, BigraphStat, alphabet, InputString);
keySearcher.LogMessageByKeySearcher += new KeySearcher.LogMessageByKeySearcherEventHandler(OnLogMessageByKeySearcher);
keySearcher.ProgressChangedByKeySearcher += new KeySearcher.ProgressChangedByKeySearcherEventHandler(OnProgressChangedByKeySearcher);
playFairAttackThread = new Thread(keySearcher.Attack);
playFairAttackThread.IsBackground = true;
playFairAttackThread.Start();
playFairAttackThread.Join();
if (!executionStopped)
{
OutputString = keySearcher.PlainText;
OnPropertyChanged("OutputString");
OnPropertyChanged("OutputData");
GuiLogMessage("Analysis completed", NotificationLevel.Info);
ProgressChanged(1, 1);
}
else
{
GuiLogMessage("Analysis aborted", NotificationLevel.Info);
ProgressChanged(0, 1);
}
}
public BigraphStatistic(int matrixSize)
{
keySearcher = new KeySearcher(matrixSize);
this.matrixSize = matrixSize;
}