public AesMatrix GetSimpleXOR()
{
var simpleXor = new AesMatrix();
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
simpleXor.matrix[i, j] = Convert.ToByte(
this.key.matrix[i, j] ^ this.simpleText.matrix[i, j]
);
}
}
return(simpleXor);
}
static void Main(string[] args)
{
try
{
var simpleTextBytes = File.ReadAllBytes("./arquivo/texto.txt");
Console.WriteLine("Lendo texto simples da pasta ./arquivo/texto.txt");
var keyBytes = File.ReadAllBytes("./chave/chave.txt");
Console.WriteLine("Lendo chave da pasta ./chave/chave.txt");
var key = new AesMatrix(keyBytes);
var simpleTextMatrix = new ByteMatrix(simpleTextBytes);
Console.WriteLine(simpleTextMatrix.byteMatrix.Count);
byte[] bte = new byte[simpleTextMatrix.byteMatrix.Count * 16];
var loop = 1;
foreach (var simpleText in simpleTextMatrix.byteMatrix)
{
Console.WriteLine("****Chave****");
key.Print();
Console.WriteLine("****Texto simples****");
simpleText.Print();
var keyScheduler = new RoundKey(key).getAesMatrixCifred();
var simpleXor = new SimpleXor(key, simpleText).GetSimpleXOR();
var cifred = new MatrixRoundKey(simpleXor).GetRounds(keyScheduler);
Console.WriteLine("****Texto cifrado****");
cifred.Print();
for (var i = 0; i < 4; i++)
{
for (int b = 0; b < 4; b++)
{
bte[b * loop] = cifred.matrix[b, i];
}
}
loop++;
}
File.WriteAllBytes("./cifragem/cifragem.txt", bte);
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Texto cifrado salvo na pasta ./cigragem/cigragem.txt");
Console.ForegroundColor = ConsoleColor.White;
}
catch (Exception e)
{
Console.WriteLine(e.StackTrace);
}
}
private AesMatrix PrintKeyScheduler(int roundKey)
{
Console.WriteLine(String.Format("*****Round Key {0} ******", roundKey));
var initialKey = ((roundKey + 1) * 4) - 4;
AesMatrix matrix = new AesMatrix();
for (int i = 0; i < 4; i++)
{
for (int j = initialKey; j < (roundKey + 1) * 4; j++)
{
Console.Write(this.keyScheduler[i, j].ToString("X2") + " ");
if ((roundKey + 1) * 4 == 44)
{
matrix.matrix[i, j - 40] = this.keyScheduler[i, j];
}
}
Console.WriteLine();
}
return(matrix);
}
public MatrixRoundKey(AesMatrix crifredText)
{
this.crifredText = crifredText;
}
public SimpleXor(AesMatrix key, AesMatrix simpleText)
{
this.key = key;
this.simpleText = simpleText;
}
public RoundKey(AesMatrix aesMatrix)
{
this.aesMatrix = aesMatrix;
this.keyScheduler = new byte[4, 44];
}
