encrypt_shared_preferences 0.1.4

Encrypted SharedPreferences for critical data.

Wraps platform-specific persistent storage for simple data (NSUserDefaults on iOS and macOS, SharedPreferences on Android, etc.). Data may be persisted to disk asynchronously, and there is no guarantee that writes will be persisted to disk after returning, so this plugin must be used for storing critical data.

Open pub.dev

void main() {
  var sharedPref = await EncryptedSharedPreferences.getInstance();
  sharedPref.setEncryptionKey("key 16 length");
  sharedPref.setEncryptionMode(AESMode.cbc); //optional (default : AESMode.cbc)

  await sharedPref.setString('user_token', 'xxxxxxxxxxxx');

  await sharedPref.getString('user_token'); //xxxxxxxxxxxx
  
  
  await sharedPref.setInt('age', 99);
  
  await sharedPref.getInt('age'); //99
  
  
  await sharedPref.setDouble('pi', 3.14);
  
  await sharedPref.getDouble('pi'); //3.14
  
  
  await sharedPref.setBoolean('isPremium', true);
  
  
  await sharedPref.getBoolean('isPremium'); //true

  await sharedPref.remove('user_token'); //true/false

  await sharedPref.clear(); //true/false


  sharedPref.addListener((key, value, oldValue) {
    //
  });

  
  //returns all key values with updated value;
  sharedPref.listenable.listen((event) { //Map<String,dynamic>
    print(event);
    expect(event.length, 3);
  });
  
  
  //returns key value of current updated value;
  sharedPref.listenableSingle.listen((event) { //StreamData
    print(event.key);
    print(event.value);
    print(event.oldValue);
  });
  

  sharedPref.listenKey('token').listen((event) { //StreamData
    print(event.key);
    print(event.value);
    print(event.oldValue);
  });
}

Supported modes :

• CBC AESMode.cbc (default)
• CFB-64 AESMode.cfb64
• CTR AESMode.ctr
• ECB AESMode.ecb
• OFB-64/GCTR AESMode.ofb64Gctr
• OFB-64 AESMode.ofb64
• SIC AESMode.sic