public static void DES_ECBtest()
{
var name = "sam";
var key = DEShelper.GenerateRandomData().ToList();
des.EncryptImage($"{name}.png", key, $"encrypted{name}.png");
des.DecryptImage($"encrypted{name}.png", key, $"decrypted{name}.png");
}
public static string DecryptTextFromImage(string path, int length)
{
var img = new Bitmap(path);
var pixels = DEShelper.GetPixels(img).ToArray();
var binOutput = new List <int>();
for (int i = 0; i < 8 * length; i++)
{
binOutput.Add(GetLastBit(pixels[i].R));
}
return(DEShelper.BinaryToText(binOutput.ListToString()));
}
public static void EncryptInImage(string path, string input)
{
var img = new Bitmap(path);
var pixels = DEShelper.GetPixels(img).ToArray();
var binInput = DEShelper.TextToBinary(input).ToArray();
for (int i = 0; i < binInput.Count(); i++)
{
img.SetPixel(i % img.Width, i / img.Width, Color.FromArgb(pixels[i].A, ChangeByte(pixels[i].R, binInput[i]), pixels[i].G, pixels[i].B));
}
img.Save($"encrypted{path}");
}
public static void DES_OFBtest()
{
var vector = DEShelper.GenerateRandomData().ToList();
var key = DEShelper.GenerateRandomData().ToList();
var name = "blocksOFB";
DEShelper.GenerateRandomDataBlocks($"{name}.txt", 8);
var ofbE = des.OFB(DEShelper.GetDataBlocksFromFile($"{name}.txt"), key, vector);
DEShelper.SaveBlocksToFile($"{name}encrypted.txt", ofbE);
var ofbD = des.OFB(DEShelper.GetDataBlocksFromFile($"{name}encrypted.txt"), key, vector);
DEShelper.SaveBlocksToFile($"{name}decrypted.txt", ofbD);
}
public static void DES_CBCtest()
{
var vector = DEShelper.GenerateRandomData().ToList();
var key = DEShelper.GenerateRandomData().ToList();
var name = "blocksCBC";
DEShelper.GenerateRandomDataBlocks($"{name}.txt", 8);
var cbcE = des.EncryptCBC(DEShelper.GetDataBlocksFromFile($"{name}.txt"), key, vector);
DEShelper.SaveBlocksToFile($"{name}encrypted.txt", cbcE);
var cbcD = des.DecryptCBC(DEShelper.GetDataBlocksFromFile($"{name}encrypted.txt"), key, vector);
DEShelper.SaveBlocksToFile($"{name}decrypted.txt", cbcD);
}
public static void DES_PCBCtest()
{
var vector = DEShelper.GenerateZeroOne();
var key = DEShelper.GenerateDataByBytes(0, 1);
var data = DEShelper.GeneratePreDefArrayBlocks(new int[] { 0, 1, 0 });
Console.WriteLine($"data:\n{data.BlocksToString()}");
Console.WriteLine($"\nkey:\n{key.ListToString()}");
Console.WriteLine($"\nvector:\n{vector.ListToString()}");
var pcbcE = des.EncryptPCBC(data, key, vector);
Console.WriteLine($"\nEncrypted:\n{pcbcE.BlocksToString()}");
var pcbcD = des.DecryptPCBC(pcbcE, key, vector);
Console.WriteLine($"\nDecrypted:\n{pcbcD.BlocksToString()}");
}
public void DecryptImage(string imagePath, IEnumerable <int> key, string outName)
{
Console.WriteLine("Decrypting");
var colors = DEShelper.GetPixels(imagePath).ToArray();
var encryptedColors = new List <IEnumerable <int> >();
var len = colors.Count();
for (int i = 0; i < len; i += 2)
{
var bin1 = Convert.ToString(Convert.ToInt64(colors[i].Name, 16), 2).PadLeft(32, '0').ToIntList();
var bin2 = Convert.ToString(Convert.ToInt64(colors[i + 1].Name, 16), 2).PadLeft(32, '0').ToIntList();
encryptedColors.Add(Decrypt(bin1.Concat(bin2), key).ToList());
}
Console.WriteLine("Decrypted\nSaving...");
DEShelper.SaveImage64x64(encryptedColors, outName);
Console.WriteLine($"Saved {outName}");
}
public static void DES_CTRtest()
{
var key = DEShelper.GenerateDataByBytes(0, 1);
var data = DEShelper.GeneratePreDefArrayBlocks(new int[] { 0, 1, 0 });
var nonce = DEShelper.GenerateOneZero(32);
var counter = DEShelper.GeneratePreDefData(32);
Console.WriteLine($"data:\n{data.BlocksToString()}");
Console.WriteLine($"\nkey:\n{key.ListToString()}");
Console.WriteLine($"\nCTR:\n{nonce.ListToString()}{counter.ListToString()}");
var func = new Func <int, int>((x) => x + 1);
var cntFunction = new Func <IEnumerable <int>, IEnumerable <int> >((input) => DEShelper.BitListOperation(input, (x) => x + 1));
var cntFunction2 = new Func <IEnumerable <int>, IEnumerable <int> >((input) => DEShelper.BitListOperation(input, (x) => 5 * (x + 1) + 3));
var ctrE = des.CTR(data, key, nonce, counter, cntFunction);
Console.WriteLine($"\nEncrypted:\n{ctrE.BlocksToString()}");
var ctrD = des.CTR(ctrE, key, nonce, counter, cntFunction);
Console.WriteLine($"\nDecrypted:\n{ctrD.BlocksToString()}");
}
public static void DEStest()
{
var data = DEShelper.GenerateRandomData().ToList();
var key = DEShelper.GenerateRandomData().ToList();
Console.WriteLine($"data BIN: {data.ListToString()}");
Console.WriteLine($"data HEX: {data.ToHex()}");
Console.WriteLine();
Console.WriteLine($"key BIN: {key.ListToString()}");
Console.WriteLine($"key HEX: {key.ToHex()}");
Console.WriteLine();
var encrypted = des.Encrypt(data, key);
Console.WriteLine($"encypted BIN {encrypted.ListToString()}");
Console.WriteLine($"encypted HEX {encrypted.ToHex()}");
Console.WriteLine();
var decrypted = des.Decrypt(encrypted, key);
Console.WriteLine($"decrypted BIN: {decrypted.ListToString()}");
Console.WriteLine($"decrypted HEX: {decrypted.ToHex()}");
}
