public void CompareSignature(byte[] memory, byte[] previous, long length)
{
diffBits.Clear();
int[] sig = CreateSignatureTest.TestSignature;
byte mem;
diffLength = 0;
int counter = 0;
for (int i = 0; i < sig.Length; i++)
{
mem = memory[sig[i]];
if (mem != previous[sig[i]])
{
diffBits.Add(true);
diff[diffLength] = mem;
diffLength++;
counter = i;
}
else
{
diffBits.Add(false);
}
}
diffBits.BitCount = counter;
}
public static void ShowBitArray()
{
var bitArray = new BitArray(new bool[] { true, false, true, true, false });
Action <string> showInfo = (action) => {
Console.WriteLine($"Count = {bitArray.Count}, CountOfReservedElements = {bitArray.CountOfReservedElements}");
ShowAction(action, bitArray);
};
showInfo("Create");
bitArray.Add(true);
showInfo("Add true");
bitArray.Add(false);
showInfo("Add false");
bitArray.Add(false);
showInfo("Add false");
bitArray.Add(true);
showInfo("Add true");
bitArray.IncreaseArray(20);
showInfo("Increase (20)");
bitArray[2] = false;
showInfo("set bitArray[2] = false");
bitArray[18] = true;
showInfo("set bitArray[18] = true");
bitArray[9] = true;
showInfo("set bitArray[9] = true");
bitArray[0] = false;
showInfo("set bitArray[0] = false");
showInfo($"get bitArray[2] = {bitArray[2]}");
showInfo($"get bitArray[14] = {bitArray[14]}");
showInfo($"get bitArray[5] = {bitArray[5]}");
}
public KeyValuePair <Dictionary <T, BitArray>, BitArray> Encode(T[] data)
{
List <Node <T> > nodes = new List <Node <T> >();
var map = GetMap(data);
foreach (var item in map)
{
nodes.Add(new Node <T>(item.Key, item.Value));
}
while (nodes.Count > 1)
{
nodes[0].SetBit(false);
nodes[1].SetBit(true);
var item = new Node <T>(nodes[0], nodes[1]);
nodes.Add(item);
nodes.RemoveAt(0);
nodes.RemoveAt(0);
nodes = nodes.OrderBy(x => x.Counter).ToList();
}
var Key = nodes[0].GetBitKeys();
BitArray ans = new BitArray(0);
foreach (var item in data)
{
ans.Add(Key[item]);
}
return(new KeyValuePair <Dictionary <T, BitArray>, BitArray>(Key, ans));
}
private void Create(string fontFamily)
{
Graphics g = Graphics.FromImage(new Bitmap(100, 100));
Font font = new Font(fontFamily, 100, FontStyle.Regular, GraphicsUnit.Pixel);
string str = "";
SizeF[] sizes = new SizeF[94];
float width = 0;
for (int i = 33; i <= 126; i++)
{
str += (char)i;
sizes[i - 33] = g.MeasureString((char)i + "", font, 0, StringFormat.GenericTypographic);
width += sizes[i - 33].Width;
}
Bitmap bmp = new Bitmap(Convert.ToInt32(width), Convert.ToInt32(sizes[0].Height));
g.Dispose();
g = Graphics.FromImage(bmp);
g.DrawString(str, font, new SolidBrush(Color.White), new PointF(), StringFormat.GenericTypographic);
FileStream stream = new FileStream("fontatlas.fta", FileMode.Create);
BinaryWriter writer = new BinaryWriter(stream);
//header
writer.Write(new byte[] { (byte)'F', (byte)'T', (byte)'A' }); //filetype
writer.Write(2.0F); //version
writer.Write(bmp.Width); //width
writer.Write(bmp.Height); //height
writer.Write(str.Length); //char amount
writer.Write((byte)33); //starting char
writer.Write(fontFamily); //fontFamily
BitArray bitArray = new BitArray();
for (int y = 0; y < bmp.Height; y++)
{
for (int x = 0; x < bmp.Width; x++)
{
var val = bmp.GetPixel(x, y).R;
bitArray.Add(val == 255);
}
}
writer.Write(bitArray.GetBytes());
foreach (var s in sizes)
{
writer.Write(s.Width);
}
g.Dispose();
stream.Close();
bmp.Dispose();
}
private BitArray FunctionSBox(BitArray array)
{
BitArray sBoxedArray = new BitArray(32);
for (int i = 0; i < 8; i++)
{
BitArray temp = array.GetRange(6 * i, 6);
sBoxedArray.Add(Permutations.Permute(Data.SBox[i], temp));
}
return(sBoxedArray);
}
public List<string> getIPv4Range()
{
List<string> ipaddrs = new List<string>();
BitArray currip = this.calcIPv4FirstAddress();
BitArray lastip = this.calcIPv4LastAddress();
while (!currip.bitsEqual(lastip))
{
ipaddrs.Add(this.calcIPv4Address(currip));
currip = currip.Add(1);
}
ipaddrs.Add(this.calcIPv4Address(currip) );
return ipaddrs;
}