rot13

Package Overview

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A lightweight Flutter package for encoding and decoding strings using the ROT13 cipher, which rotates each letter by 13 positions in the alphabet. It is simple to use and ideal for basic obfuscation or educational purposes. The package supports all major platforms including Android, iOS, Web, macOS, Windows, and Linux. It does not provide cryptographic security but serves as a fun and accessible tool for learning about ciphers and text transformation.

Use cases

Text obfuscation in apps
Educational tools for cryptography
Simple data encoding
Fun messaging features
Basic string manipulation

Key features

Easy-to-use encode/decode methods
Cross-platform compatibility
No external dependencies
Supports both uppercase and lowercase letters
Pure Dart implementation

Suitable for

Beginner Flutter developers
Learning cryptography basics
Non-sensitive data encoding
Simple app features
Educational projects

Considerations

Not suitable for secure encryption
Does not handle non-alphabetic characters specially
Limited to ROT13 algorithm only
Not intended for production security use
No configuration options

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

Flutter package to encode / decode string to ROT13

Getting Started

To use this plugin, add rot13 as a dependency in your pubspec.yaml file.

To Encode / Decode String to ROT13:

rot13(String string) - Encode / Decode a string to ROT13

Example

example

import 'package:flutter/material.dart';
import 'package:rot13/rot13.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String rot13Text = "";
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text("ROT 13 Demo"),
        ),
        body: SafeArea(
          child: Column(
            children: [
              TextField(
                onChanged: (txt) {
                  setState(() {
                    rot13Text = rot13(txt);
                  });
                },
              ),
              SizedBox(height: 20),
              Text("Output: $rot13Text")
            ],
          ),
        ),
      ),
    );
  }
}

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