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(); } } } } } }