el_morro 1.0.2

Solid data protection.

El Morro

Solid data protection with no encryption overhead
100% Hecho en 🇵🇷 por Radamés J. Valentín Reyes
Orgullosamente Boricua

Features

• Symmetric encryption
• No encryption overhead (file/data size is kept. not increased/bloated)
• Easy to use
• Ultra fast / Super lightweight
• Data obfuscation - Bytes are shuffled. Shuffle is determined by password.

Warning

Not compatible with previous versions. Under development. All versions are experimental. I'm just playing and seeing what happens. Don't know how to test how strong the criptographic method is. Gemini and Copilot say it is not secure.

Import Library

import 'package:el_morro/el_morro.dart';
import 'dart:io';

Cipher bytes/data

List<int> ciphered = cipherData(password: password, bytes: message.codeUnits);

Decipher bytes/data

List<int> deciphered = decipherData(password: password, cipheredBytes: ciphered);

Example 1

Ciphering a message and then deciphering it.

int password = 1234567896545931597;
String message = "Hello World";
print("Message: $message");
List<int> ciphered = cipherData(password: password, bytes: message.codeUnits);
print("Ciphered message: ${String.fromCharCodes(ciphered)}");
List<int> deciphered = decipherData(password: password, cipheredBytes: ciphered);
print("Deciphered: ${String.fromCharCodes(deciphered)}");

Cipher File

await cipherFile(
  password: password, 
  file: File("./test_files/text.txt"), 
  output: File("./test_files/ciphered.txt"),
);

Decipher File

await decipherFile(
  password: password, 
  file: File("./test_files/ciphered.txt"), 
  output: File("./test_files/deciphered.txt"),
);

Example 2

Ciphering and deciphering a file

int password = 1234567896545931597;
await cipherFile(
  password: password, 
  file: File("./test_files/text.txt"), 
  output: File("./test_files/ciphered.txt"),
);
await decipherFile(
  password: password, 
  file: File("./test_files/ciphered.txt"), 
  output: File("./test_files/deciphered.txt"),
);

Limitations

• Numbers outside the range 0-255 cannot be encrypted.
• Might not work on web because of the dart:io dependency to cipher files.

Notes

• Hasn't been tested for how secure it is. Use at your own risk.