Secure Shared Preferences for Flutter

by Flutter Awesome

Features

  • Simple to use yet powerful package to encypt shared preferences in android and UserDefaults in iOS.
  • You have an option to by pass encryption just by passing a bool.
  • Supports String, int, bool, double, map and List<String>.
  • Uses advance AES-CBC-128 algorithm for encryption.
  • Encrypts both key and value.
  • Integration unit tests available here

Getting started

  1. add dependency in pubspec.yaml file secure_shared_preferences:0.0.1-beta
  2. add import import 'package:secure_shared_preferences/secure_shared_preferences.dart';

Usage

  1. To save string data type to secure storage.

    var pref = await SecureSharedPref.getInstance();
    pref.putString("Key", "This is data I want to save to local storage", true);
  1. To get string data type to secure storage.

    var pref = await SecureSharedPref.getInstance();
    pref.getString("Key", true);

Additional information

Encryption flow chart

Usage

  1. Save :

    var pref = await SecureSharedPref.getInstance();
    await pref.putString("StringEncrypted", "This is my first string test", true);
    await pref.putInt("key", 100, true);
    await pref.putMap("mapKey", {"Hello":true}, true);
    await pref.putDouble("doubleKey", 20.32, true);
    await pref.putBool("boolKey", true, true);
    await pref.putStringList("listKey", ["S","K"], true);
  1. Fetch :

    var pref = await SecureSharedPref.getInstance();
    await pref.getString("StringEncrypted", true);
    await pref.getInt("key", true);
    await pref.getMap("mapKey", true);
    await pref.getDouble("doubleKey", true);
    await pref.getBool("boolKey",true);
    await pref.getStringList("listKey", true);

GitHub

View Github