/// <summary>
/// Create the Mask Table the PayloadMasker will use
/// </summary>
/// <param name="Seed">The seed will be used to randomize the start position</param>
/// <param name="MaxLength">The maximum length in bytes to bruteforce</param>
/// <param name="OutStream">The stream for writing the output</param>
public static void CreateMaskTable(int Seed, ushort MaxLength, Stream OutStream)
{
if (!OutStream.CanWrite)
{
throw new Exception("OutStream does not have Write");
}
if (MaxLength <= 0)
{
throw new Exception("MaxLength should be atleast 1 or higher");
}
Stopwatch sw = Stopwatch.StartNew();
ulong Speed = 0;
double PrevVal = 0;
double MaxVal = 0;
List <double> Digits = new List <double>();
DataShuffler dataShuffler = new DataShuffler(Seed);
for (double i = 0, h = 8; i < MaxLength; i++, h += 8)
{
int ByteIndex = (int)i + 1;
PrevVal = MaxVal;
MaxVal = Math.Pow(2, h);
ProgressHelper progressHelper = new ProgressHelper((ulong)(MaxVal - PrevVal));
for (double j = PrevVal; j < MaxVal; j++)
{
byte[] num = BitConverter.GetBytes((ulong)j);
Speed++;
Digits.Add(j);
progressHelper.Update(1);
if (Digits.Count > 10000000)
{
SaveMaskTable(ref Digits, ref dataShuffler, ByteIndex, ref OutStream);
}
if (sw.ElapsedMilliseconds >= 1000)
{
Console.WriteLine(num[0].ToString("X4") + " " +
num[1].ToString("X4") + " " +
num[2].ToString("X4") + " " +
num[3].ToString("X4") + " " +
num[4].ToString("X4") + " " +
num[5].ToString("X4") + " " +
num[6].ToString("X4") + " " +
num[7].ToString("X4"));
TimeSpan ETA = progressHelper.TimeLeft;
Console.WriteLine("Speed " + Speed + " a second, current byte length: " + ByteIndex + ", " + progressHelper.Progress + "% done, Time Left:" + ETA.Hours.ToString("D2") + ":" + ETA.Minutes.ToString("D2") + ":" + ETA.Seconds.ToString("D2"));
Speed = 0;
sw = Stopwatch.StartNew();
}
}
SaveMaskTable(ref Digits, ref dataShuffler, ByteIndex, ref OutStream);
}
}
private static void SaveMaskTable(ref List <double> Digits, ref DataShuffler dataShuffler, int ByteIndex, ref Stream OutStream)
{
if (Digits.Count == 0)
{
return;
}
Console.WriteLine("Digits:" + Digits.Count);
PayloadWriter pw = new PayloadWriter();
double[] Shuffled = dataShuffler.Shuffle <double>(Digits.ToArray(), 1, (double progress, TimeSpan TimeLeft, int speed) =>
{
if ((int)progress % 5 == 0.0F)
{
Console.WriteLine("Shuffle progress:" + progress + ", Speed: " + speed + ", Time Left: " + TimeLeft.Hours.ToString("D2") + ":" + TimeLeft.Minutes.ToString("D2") + ":" + TimeLeft.Seconds.ToString("D2"));
}
});
for (int k = 0; k < Shuffled.Length; k++)
{
int Target = (int)Shuffled[k];
pw.WriteByte((byte)ByteIndex); //byte length
if (ByteIndex >= 1 || ByteIndex <= 3) //play it safe
{
pw.WriteUInteger((uint)Target);
}
else
{
pw.WriteDecimal(Target);
}
if (pw.Length >= 65535)
{
OutStream.Write(pw.GetBuffer(), 0, pw.Length);
OutStream.Flush();
pw = new PayloadWriter();
}
}
if (pw.Length > 0)
{
OutStream.Write(pw.GetBuffer(), 0, pw.Length);
OutStream.Flush();
}
pw.Dispose();
Digits.Clear();
}
