docs: public static byte[] pBKDF2ObfuscatePassword(String password, byte[] salt)
              throws NoSuchAlgorithmException, InvalidKeySpecException {
          String algorithm = "PBKDF2WithHmacSHA1";
          int derivedKeyLength = 160;
          int iterations = 20000;
          KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, iterations,
                  derivedKeyLength);
          SecretKeyFactory f = SecretKeyFactory.getInstance(algorithm);
  
          return f.generateSecret(spec).getEncoded();
      }