public static void DecipherVertical(NumbersDataTaken info)
{
Directory.CreateDirectory("temp");
using (var reader = new BinaryReader(info.File.OpenReadStream()))
{
using (var streamWriter = new FileStream($"temp\\{info.Name}.txt", FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(streamWriter))
{
var bufferLength = info.key1 * info.key2;
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
var matriz = new byte[info.key1, info.key2];
byteBuffer = reader.ReadBytes(bufferLength);
var cont = 0;
for (int i = 0; i < info.key1; i++)
{
for (int j = 0; j < info.key2; j++)
{
if (cont < byteBuffer.Count())
{
matriz[i, j] = byteBuffer[cont];
cont++;
}
else
{
matriz[i, j] = (byte)0;
}
}
}
for (int i = 0; i < info.key2; i++)
{
for (int j = 0; j < info.key1; j++)
{
if (matriz[j, i] != (byte)0)
{
writer.Write(matriz[j, i]);
}
}
}
}
}
}
}
}
public static void Decipher(NumbersDataTaken info)
{
Directory.CreateDirectory("temp");
using (var reader = new BinaryReader(info.File.OpenReadStream()))
{
using (var streamWriter = new FileStream($"temp\\{info.Name}.txt", FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(streamWriter))
{
var GrupoOlas = (2 * info.key1) - 2;
var len = (float)reader.BaseStream.Length / (float)GrupoOlas;
var cantOlas = len % 1 <= 0.5 && len % 1 > 0 ? Math.Round(len) + 1 : Math.Round(len);
cantOlas = Convert.ToInt32(cantOlas);
var intermedios = (Convert.ToInt32(reader.BaseStream.Length) - (2 * cantOlas)) / (info.key1 - 2);
var pos = 0;
var contNivel = 0;
var contIntermedio = 0;
var mensaje = new Queue <byte> [info.key1];
for (int i = 0; i < info.key1; i++)
{
mensaje[i] = new Queue <byte>();
}
var bufferLength = 100000;
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
foreach (var caracter in byteBuffer)
{
if (contNivel == info.key1 - 1)
{
mensaje[contNivel].Enqueue(caracter);
}
else
{
if (pos < cantOlas)
{
mensaje[0].Enqueue(caracter);
}
else if (pos == cantOlas)
{
contNivel++;
mensaje[contNivel].Enqueue(caracter);
contIntermedio = 1;
}
else if (contIntermedio < intermedios)
{
mensaje[contNivel].Enqueue(caracter);
contIntermedio++;
}
else
{
contNivel++;
mensaje[contNivel].Enqueue(caracter);
contIntermedio = 1;
}
pos++;
}
}
}
contNivel = 0;
var direccion = true;
//True es hacia abajo
//False es hacia arriba
while (mensaje[contNivel].Peek() != (byte)0 && (mensaje[1].Count() != 0 || (info.key1 == 2 && mensaje[1].Count() != 0)))
{
if (contNivel == 0)
{
writer.Write(mensaje[contNivel].Dequeue());
contNivel = 1;
direccion = true;
}
else if (contNivel < info.key1 - 1 && direccion)
{
writer.Write(mensaje[contNivel].Dequeue());
contNivel++;
}
else if (contNivel > 0 && !direccion)
{
writer.Write(mensaje[contNivel].Dequeue());
contNivel--;
}
else if (contNivel == info.key1 - 1)
{
writer.Write(mensaje[contNivel].Dequeue());
contNivel = info.key1 - 2;
direccion = false;
}
}
}
}
}
}
public static void DechipherEspiral(NumbersDataTaken info)
{
Directory.CreateDirectory("temp");
using (var reader = new BinaryReader(info.File.OpenReadStream()))
{
using (var streamWriter = new FileStream($"temp\\{info.Name}.txt", FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(streamWriter))
{
var bufferLength = info.key1 * info.key2;
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
var Matriz = new byte[info.key1, info.key2];
byteBuffer = reader.ReadBytes(bufferLength);
var cont = 0;
for (int i = 0; i < info.key1; i++)
{
for (int j = 0; j < info.key2; j++)
{
if (cont < byteBuffer.Count())
{
Matriz[i, j] = byteBuffer[cont];
cont++;
}
else
{
Matriz[i, j] = (byte)0;
}
}
}
var numVueltas = 0;
var posX = 0;
var posY = 0;
var Direccion = "abajo";
for (int i = 0; i < bufferLength; i++)
{
if (Matriz[posY, posX] != 0)
{
if (Direccion == "abajo" && posY != info.key1 - 1 - numVueltas)
{
writer.Write(Matriz[posY, posX]);
posY++;
}
else if (Direccion == "abajo" && posY == info.key1 - 1 - numVueltas)
{
writer.Write(Matriz[posY, posX]);
posX++;
Direccion = "derecha";
}
else if (Direccion == "derecha" && posX != info.key2 - 1 - numVueltas)
{
writer.Write(Matriz[posY, posX]);
posX++;
}
else if (Direccion == "derecha" && posX == info.key2 - 1 - numVueltas)
{
writer.Write(Matriz[posY, posX]);
posY--;
Direccion = "arriba";
}
else if (Direccion == "arriba" && posY != numVueltas)
{
writer.Write(Matriz[posY, posX]);
posY--;
}
else if (Direccion == "arriba" && posY == numVueltas)
{
writer.Write(Matriz[posY, posX]);
numVueltas++;
posX--;
Direccion = "izquierda";
}
else if (Direccion == "izquierda" && posX != numVueltas)
{
writer.Write(Matriz[posY, posX]);
posX--;
}
else if (Direccion == "izquierda" && posX == numVueltas)
{
writer.Write(Matriz[posY, posX]);
posY++;
Direccion = "abajo";
}
}
}
}
}
}
}
}
public static void Cipher(NumbersDataTaken info)
{
Directory.CreateDirectory("temp");
using (var reader = new BinaryReader(info.File.OpenReadStream()))
{
using (var streamWriter = new FileStream($"temp\\{info.Name}.txt", FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(streamWriter))
{
var GrupoOlas = (2 * info.key1) - 2;
var len = (float)reader.BaseStream.Length / (float)GrupoOlas;
var cantOlas = len % 1 <= 0.5 && len % 1 > 0 ? Math.Round(len) + 1 : Math.Round(len);
cantOlas = Convert.ToInt32(cantOlas);
var pos = 0;
var contNivel = 0;
var mensaje = new List <byte> [info.key1];
for (int i = 0; i < info.key1; i++)
{
mensaje[i] = new List <byte>();
}
var bufferLength = 100000;
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
foreach (var caracter in byteBuffer)
{
if (pos == 0 || pos % GrupoOlas == 0)
{
mensaje[0].Add(caracter);
contNivel = 0;
}
else if (pos % GrupoOlas == info.key1 - 1)
{
mensaje[info.key1 - 1].Add(caracter);
contNivel = info.key1 - 1;
}
else if (pos % GrupoOlas < info.key1 - 1)
{
contNivel++;
mensaje[contNivel].Add(caracter);
}
else if (pos % GrupoOlas > info.key1 - 1)
{
contNivel--;
mensaje[contNivel].Add(caracter);
}
pos++;
}
}
for (int i = 0; i < info.key1; i++)
{
var cantIteracion = i == 0 || i == info.key1 - 1 ? cantOlas : cantOlas * 2;
var inicio = mensaje[i].Count();
for (int j = inicio; j < cantIteracion; j++)
{
mensaje[i].Add((byte)0);
}
writer.Write(mensaje[i].ToArray());
}
}
}
}
}
