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main.dart
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main.dart
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import 'package:flutter/material.dart';
import 'package:xor_encryption/xor_encryption.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'XOR Encryption',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(title: 'XOR Encryption'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
String secret = '', encrypted = '', decrypted = '';
TextEditingController message = TextEditingController();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text(widget.title),
),
body: Padding(
padding: const EdgeInsets.all(15.0),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
if (secret != '') const Text('Your secert key is:'),
if (secret != '')
Text(
secret,
style: Theme.of(context).textTheme.headlineMedium,
),
ElevatedButton(
onPressed: () {
setState(() {
secret = XorCipher().getSecretKey(34);
});
},
child: const Text('Generate Encryption Key'),
),
const SizedBox(height: 30),
const Text('Enter Message to encrypt'),
TextFormField(
controller: message,
onChanged: (value) => setState(() {}),
decoration: const InputDecoration(
isDense: true,
border: OutlineInputBorder(),
focusedBorder: OutlineInputBorder(),
),
),
const SizedBox(height: 30),
if (message.text.isNotEmpty)
Column(
children: [
if (encrypted != '') const Text('Encrypted Text is:'),
if (encrypted != '')
Text(
encrypted,
style: Theme.of(context).textTheme.headlineMedium,
),
ElevatedButton(
onPressed: () {
setState(() {
if (secret == '') {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text(
'Please generate a secret key first',
),
),
);
} else {
encrypted = XorCipher().encryptData(
message.text,
secret,
);
}
});
},
child: const Text('Encrypt Data'),
),
const SizedBox(height: 30),
if (decrypted != '') const Text('Decrypted Text is:'),
if (decrypted != '')
Text(
decrypted,
style: Theme.of(context).textTheme.headlineMedium,
),
ElevatedButton(
onPressed: () {
setState(() {
if (encrypted == '') {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text(
'Please encrypt a text first',
),
),
);
} else {
decrypted = XorCipher().encryptData(
encrypted,
secret,
);
}
});
},
child: const Text('Decrypt Data'),
),
],
),
],
),
),
),
);
}
}