MQLArticles/Utils/Encrypt/TestFile.mq5

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//|                                                     TestFile.mq5 |
//|                                  Copyright 2026, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
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#property copyright "Copyright 2026, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"

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//|                                                                  |
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#include "Encrypt.mqh"

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//| Script program start function                                    |
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void OnStart()
 {
//---
  const string test_path = "MQLArticles\\Encryptor\\Test.txt";
  const string test_content = "Hola mundo esto es un test de encriptacion";

//--- Creamos el archivo de prueba
  int fh = FileOpen(test_path, FILE_WRITE | FILE_TXT | FILE_COMMON);
  if(fh == INVALID_HANDLE)
   {
    Print("Fallo al crear Test.txt, error = ", GetLastError());
    return;
   }
  FileWriteString(fh, test_content);
  FileClose(fh);
  Print("Archivo creado: ", test_path);

//--- Encryptamos
  CEncryptor encryptor;
  CRandomSimple random;
  encryptor.SetAleatoryKey(CRYPT_AES256, RandomSimpleGenerateRandomUchar, &random);
  Print("Key = ", encryptor.Key());

  if(!encryptor.EncryptFile(test_path, true, CRYPT_AES256, true, ".enc"))
   {
    Print("Fallo al encriptar");
    return;
   }
  Print("Archivo encriptado: ", test_path + ".enc");

//--- Desencryptamos
  const string enc_file = test_path + ".enc";
  if(!encryptor.DecryptFile(enc_file, true, CRYPT_AES256, false, "-")) // Quiatrmos el .enc (sobreescribimos)
   {
    Print("Fallo al desencriptar");
    return;
   }
  Print("Archivo desencriptado: ", test_path + ".enc.dec");

//--- Leemos el resultado y verificamos
  fh = FileOpen(test_path, FILE_READ | FILE_TXT | FILE_COMMON);
  if(fh == INVALID_HANDLE)
   {
    Print("Fallo al abrir archivo desencriptado, error = ", GetLastError());
    return;
   }
  string result = FileReadString(fh);
  FileClose(fh);

//---
  Print("Contenido original   = ", test_content);
  Print("Contenido recuperado = ", result);
 }
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