public string Encode(string message)
{
if (!_configurated)
{
throw new Exception("Not configurated.");
}
BitMessage Round(BitMessage mess, BitMessage key)
{
BitMessage L = mess.Take(mess.Count() / 2).ToArray();
BitMessage R = mess.Skip(mess.Count() / 2).ToArray();
return(R + (L ^ EncoderFunction(R, key)));
}
string[] CutString(string input)
{
string[] Blocks = new string[(input.Length * Bit.SizeOfChar) / _sizeOfBlock];
int lengthOfBlock = input.Length / Blocks.Length;
for (int i = 0; i < Blocks.Length; i++)
{
Blocks[i] = input.Substring
(i * lengthOfBlock, lengthOfBlock);
}
return(Blocks);
}
message = StringFormat(message);
_binaryBlocks = CutString(message)
.Select(x => BitMessage.Parse(x)).ToArray();
var bitKey = BitMessage.Parse
(KeyFormat(_key, message.Length
/ (2 * _binaryBlocks.Length)));
for (int i = 0; i < _rounds; i++)
{
for (int j = 0; j < _binaryBlocks.Length; j++)
{
_binaryBlocks[j] = Round(_binaryBlocks[j], bitKey);
}
bitKey = BitMessage.ParseBinary(KeyToNextRound
(bitKey.ToBinaryString()));
}
bitKey = BitMessage.ParseBinary(KeyToPrevRound
(bitKey.ToBinaryString()));
return(BitMessage.ParseBinary(String
.Concat(_binaryBlocks
.Select(x => x.ToBinaryString())))
.ToString());
}
static void Main(string[] args)
{
var ENG_ALPHA = Alphabet.GetMono(MonoAlphabet.ENG);
var UTF16 = Alphabet.GetMono(MonoAlphabet.UTF16);
IAlphabetEncoder caesar = EncoderFactory
.CreateEncoder(EncoderType.Caesar)
.SetMonoAlphabet(UTF16)
.Configure(1);
IAlphabetEncoder trithemius = EncoderFactory
.CreateEncoder(EncoderType.Trithemius)
.SetMonoAlphabet(ENG_ALPHA)
.Configure(2, new Func <int, int>(x => x + 1));
IAlphabetEncoder vigener = EncoderFactory
.CreateEncoder(EncoderType.Vigenere)
.Configure("Lemon");
IAlphabetEncoder diffiHelman = EncoderFactory
.CreateEncoder(EncoderType.DiffiHelman)
.Configure(5, 23, new List <int>()
{
23, 43
});
IAlphabetEncoder elgamal = EncoderFactory
.CreateEncoder(EncoderType.Elgamal)
.Configure(11, 2, 8, 9);
IAlphabetEncoder des = EncoderFactory
.CreateBitEncoder(BitEncodingType.Des)
.Configure("чр3Ъ");
Console.WriteLine(caesar.Encode("Azb12365.,&^%$@"));
Console.WriteLine(trithemius.Decode(trithemius.Encode("Azb")));
Console.WriteLine(vigener.Encode("ATTACKATDAWN"));
Console.WriteLine(diffiHelman.Decode(null));
Console.WriteLine(elgamal.Decode("5"));
Console.WriteLine(elgamal.Encode("6,9"));
string input = "Input";
BitMessage mess = BitMessage.Parse(input);
string binary = mess.ToBinaryString();
string output = mess.ToString();
Console.WriteLine($"\n{input}\n{binary}\n{output}");
byte[] b = new UnicodeEncoding().GetBytes(des.Encode("Do you know"));
string str = new UnicodeEncoding().GetString(b);
Console.WriteLine(str);
b.ToList().ForEach(x => Console.WriteLine(x));
Console.ReadLine();
}
public BitMessage Encode(BitMessage message) => BitMessage.Parse(Encode(message.ToString()));
public BitMessage Decode(BitMessage message)
{
throw new NotImplementedException();
}
private BitMessage EncoderFunction(BitMessage b, BitMessage key)
{
return(b ^ key);
}