public static void Descifrado(string path, string root, int tamaño)
{
string descomprimido = "";
string directorio;
directorio = root + @"\\Upload\\";
if (!Directory.Exists(directorio + "\\Espiral\\"))
{
DirectoryInfo di = Directory.CreateDirectory(directorio + "\\Espiral\\");
}
string texto = System.IO.File.ReadAllText(@path);
RutaEspiral descifrado = new RutaEspiral(texto, tamaño);
string txtdescifrado = descifrado.Descifrado();
txtdescifrado = txtdescifrado.Replace("┼", "");
txtdescifrado = txtdescifrado.Replace("↔", "");
root = root + @"\\Upload\\Espiral\\descifradoEspiral.txt";
using (StreamWriter outputFile = new StreamWriter(root))
{
foreach (char caracter in txtdescifrado)
{
outputFile.Write(caracter.ToString());
}
}
}
public void LecturaArchivo(string ruta, string nombre, int llave, string clave, int llenado) //LEE EL ARCHIVO
{
if ((llave != 0) && (llenado == 100))
{
ZigZagcompression zigzagg = new ZigZagcompression();
using (var stream = new FileStream(ruta, FileMode.Open))
{
using (var reader = new BinaryReader(stream))
{
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
}
string letters = System.Text.Encoding.ASCII.GetString(byteBuffer);
string cifrado = zigzagg.Decifrarzigzag(letters, llave); //mandar llave
string[] nuevo = ruta.Split('.');
nuevo[0] += ".txt";
if (!File.Exists(nuevo[0]))
{
using (var writeStream1 = new FileStream(nuevo[0], FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(writeStream1))
{
foreach (var item in cifrado)
{
writer.Write(item);
}
writer.Close();
}
writeStream1.Close();
}
}
}
}
}
else if ((llave != 0) && (clave == "") && (llenado == 1000))
{
ZigZagcompression zigzagg = new ZigZagcompression();
using (var stream = new FileStream(ruta, FileMode.Open))
{
using (var reader = new BinaryReader(stream))
{
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
}
string letters = System.Text.Encoding.ASCII.GetString(byteBuffer);
string cifrado = zigzagg.ZigZag(letters, llave); //mandar llave
string[] nuevo = ruta.Split('.');
nuevo[0] += "zigzag.cif";
if (!File.Exists(nuevo[0]))
{
using (var writeStream1 = new FileStream(nuevo[0], FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(writeStream1))
{
foreach (var item in cifrado)
{
writer.Write(item);
}
writer.Close();
}
writeStream1.Close();
}
}
}
}
}
//CIFRADO CESAR LLAVE=0
else if ((clave != "") && (llave == 0))
{
CifrarCesar Cesar = new CifrarCesar();
using (var stream = new FileStream(ruta, FileMode.Open))
{
using (var reader = new BinaryReader(stream))
{
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
}
string letters = System.Text.Encoding.ASCII.GetString(byteBuffer);
string cifrado = Cesar.Cifrado(letters, clave); //mandar llave
string[] nuevo = ruta.Split('.');
nuevo[0] += "cesar.cif";
//EN TEORIA ESCRIBE EN BYTES
if (!File.Exists(nuevo[0]))
{
using (var writeStream1 = new FileStream(nuevo[0], FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(writeStream1))
{
foreach (var item in cifrado)
{
writer.Write(item);
}
writer.Close();
}
writeStream1.Close();
}
}
}
}
}
//DESCIFRADO CESAR LLAVE=1
else if ((clave != "") && (llave == 1))
{
CifrarCesar Cesar = new CifrarCesar();
using (var stream = new FileStream(ruta, FileMode.Open))
{
using (var reader = new BinaryReader(stream))
{
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
}
string letters = System.Text.Encoding.ASCII.GetString(byteBuffer);
string cifrado = Cesar.Descifrado(letters, clave); //mandar llave
string[] nuevo = ruta.Split('.');
nuevo[0] += "cesar.txt";
//EN TEORIA ESCRIBE EN BYTES
if (!File.Exists(nuevo[0]))
{
using (var writeStream1 = new FileStream(nuevo[0], FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(writeStream1))
{
foreach (var item in cifrado)
{
writer.Write(item);
}
writer.Close();
}
writeStream1.Close();
}
}
}
}
}
else if (llenado != 0)
{
RutaEspiral Espiral = new RutaEspiral();
using (var stream = new FileStream(ruta, FileMode.Open))
{
using (var reader = new BinaryReader(stream))
{
var byteBuffer = new byte[bufferLength];
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
byteBuffer = reader.ReadBytes(bufferLength);
}
string letters = System.Text.Encoding.ASCII.GetString(byteBuffer);
string cifrado = Espiral.cifrarEspiral(letters, llave, llenado); //mandar llave
string[] nuevo = ruta.Split('.');
nuevo[0] += "espiral.cif";
if (!File.Exists(nuevo[0]))
{
using (var writeStream1 = new FileStream(nuevo[0], FileMode.OpenOrCreate))
{
using (var writer = new BinaryWriter(writeStream1))
{
foreach (var item in cifrado)
{
writer.Write(item);
}
writer.Close();
}
writeStream1.Close();
}
}
}
}
}
}
