encryption_helper 1.0.0

A simple Dart library providing basic string encryption and decryption using XOR and Caesar cipher techniques. Ideal for lightweight data obfuscation.

Encryption Helper

A simple Dart library that provides basic string encryption and decryption using XOR and Caesar cipher techniques.

Features

• XOR cipher encryption and decryption using a single-byte key.
• Caesar cipher encryption and decryption with a customizable shift.
• Handles both uppercase and lowercase letters in Caesar cipher.
• Ignores non-alphabet characters during Caesar operations.

Getting started

To use this package:

1. Add it to your pubspec.yaml:

dependencies:
  basic_encryption_helper: ^0.0.1

Example

Here's how to use the EncryptionHelper for XOR and Caesar cipher encryption and decryption:

import 'package:encryption_helper/encryption_helper.dart';

void main() {
  // XOR cipher example
  const key = 42;
  final originalText = 'Hello, XOR Cipher!';
  final encryptedXOR = EncryptionHelper.xorEncrypt(originalText, key);
  final decryptedXOR = EncryptionHelper.xorEncrypt(encryptedXOR, key);

  print('Original: $originalText');
  print('Encrypted (XOR): $encryptedXOR');
  print('Decrypted (XOR): $decryptedXOR');

  // Caesar cipher example
  const shift = 3;
  final caesarPlain = 'Hello, Caesar Cipher!';
  final encryptedCaesar = EncryptionHelper.caesarEncrypt(caesarPlain, shift);
  final decryptedCaesar = EncryptionHelper.caesarDecrypt(encryptedCaesar, shift);

  print('Original: $caesarPlain');
  print('Encrypted (Caesar): $encryptedCaesar');
  print('Decrypted (Caesar): $decryptedCaesar');
}

Output

When you run the example, you will see the original text, encrypted text, and decrypted text printed to the console.

Original: Hello, XOR Cipher! Encrypted (XOR): (some encrypted string) Decrypted (XOR): Hello, XOR Cipher! Original: Hello, Caesar Cipher! Encrypted (Caesar): Khoor, Fdhvdu Flskhu! Decrypted (Caesar): Hello, Caesar Cipher!