store_critical_data 0.1.5
store_critical_data #
A Flutter plugin to store critical data in secure storage:
- Keychain is used for iOS
- AES encryption is used for Android. AES secret key is encrypted with RSA and RSA key is stored in KeyStore
Note
- KeyStore was introduced in Android 4.3 (API level 18). The plugin wouldn't work for earlier versions.
Getting Started #
import 'package:store_critical_data/store_critical_data.dart';
// Create storage
final _storage = new StoreCriticalData();
// write String value
_storage.writeString(key: “key”, value: “value”);
// Read String value
String value = _storage.readString(key: "key");
// write Double value
_storage.writeDouble(key: “key”, value: “value”);
// Read Double value
final double value = _storage.readDoubleNew(key: "key");
// Clear value
_storage.clear(key: "key");
// Clear All
_storage.clearAll();
// Check if Key was store
_storage.contains(key: "key");
Configure Android version #
In [project]/android/app/build.gradle set minSdkVersion to >= 18.
android {
...
defaultConfig {
...
minSdkVersion 18
...
}
}
Note : By default Android backups data on Google Drive. It can cause exception java.security.InvalidKeyException:Failed to unwrap key.
0.1.1 #
- Secure Storage provides API to store data in secure storage. Keychain is used in iOS, KeyStore based solution is used in Android..
0.1.2 #
- Package name updated to store_critical_data.
- Updated documentation for Android and iOS libraries, classes, functions, and other API elements
0.1.3 #
- Updated documentation for Android and iOS libraries, classes, functions, and other API elements
0.1.4 #
- Added clear and clear All functionality.
0.1.5 #
- Added function for check if a key was the store.
import 'package:flutter/material.dart';
import 'package:store_critical_data/store_critical_data.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
/// Create storage
final _storage = StoreCriticalData();
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Impiger Secure Stroage Plugin'),
),
body: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Container(
padding: EdgeInsets.symmetric(vertical: 10),
alignment: Alignment.center,
child: Text('Save Methods',
style:
TextStyle(fontSize: 25, fontWeight: FontWeight.w500)),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Write String value
_storage.writeString(key: "userName", value: "AntonyLeoRuban");
},
child:
Text("Save -> String",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Write Boolean value
_storage.writeBoolean(key: "isLogged", value: true);
},
child:
Text("Save -> Boolen",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Write Int value
_storage.writeInt(key: "intValue", value: 100);
},
child:
Text("Save -> Int",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Write Dobule value
_storage.writeDouble(key: "amout", value: 25852525);
},
child:
Text("Save -> Double",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
Container(
padding: EdgeInsets.symmetric(vertical: 15),
alignment: Alignment.center,
child: Text('Load Methods',
style:
TextStyle(fontSize: 25, fontWeight: FontWeight.w500)),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Read String value
_storage.readString(key: "userName");
},
child:
Text("Load -> String",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Read Boolean value
_storage.readBoolean(key: "isLogged");
},
child:
Text("Load -> Boolen",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Read Int value
_storage.readInt(key: "intValue");
},
child:
Text("load -> Int",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Read Double value
_storage.readDoubleNew(key: "amout");
},
child:
Text("load -> Double",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
Container(
padding: EdgeInsets.symmetric(vertical: 15),
alignment: Alignment.center,
child: Text('Clear Methods',
style:
TextStyle(fontSize: 25, fontWeight: FontWeight.w500)),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Clear value
_storage.clear(key: "userName");
},
child:
Text("Clear",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Clear All
_storage.clearAll();
},
child:
Text("ClearAll",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
Container(
padding: EdgeInsets.symmetric(vertical: 15),
alignment: Alignment.center,
child: Text('Check if Key was store',
style:
TextStyle(fontSize: 25, fontWeight: FontWeight.w500)),
),
ButtonTheme(
minWidth: 300.0,
height: 44.0,
child: RaisedButton(
onPressed: () {
// Check if Key was store
_storage.contains(key: "userName");
},
child:
Text("Contains",style:
TextStyle(color: Colors.white),),color: Colors.blue,padding: EdgeInsets.all(1.0),
),
),
],
),
),
),
);
}
}
Use this package as a library
1. Depend on it
Add this to your package's pubspec.yaml file:
dependencies:
store_critical_data: ^0.1.5
2. Install it
You can install packages from the command line:
with Flutter:
$ flutter pub get
Alternatively, your editor might support flutter pub get.
Check the docs for your editor to learn more.
3. Import it
Now in your Dart code, you can use:
import 'package:store_critical_data/store_critical_data.dart';
|
Popularity:
Describes how popular the package is relative to other packages.
[more]
|
7
|
|
Health:
Code health derived from static analysis.
[more]
|
100
|
|
Maintenance:
Reflects how tidy and up-to-date the package is.
[more]
|
100
|
|
Overall:
Weighted score of the above.
[more]
|
53
|
Learn more about scoring.
We analyzed this package on Jul 9, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:
- Dart: 2.8.4
- pana: 0.13.14
- Flutter: 1.17.5
Analysis suggestions
Package does not support Flutter platform linux
Because:
package:store_critical_data/store_critical_data.dartthat declares support for platforms: android, ios
Package does not support Flutter platform macos
Because:
package:store_critical_data/store_critical_data.dartthat declares support for platforms: android, ios
Package does not support Flutter platform web
Because:
package:store_critical_data/store_critical_data.dartthat declares support for platforms: android, ios
Package does not support Flutter platform windows
Because:
package:store_critical_data/store_critical_data.dartthat declares support for platforms: android, ios
Package not compatible with SDK dart
Because:
store_critical_datathat is a package requiring null.
Health suggestions
Format lib/store_critical_data.dart.
Run flutter format to format lib/store_critical_data.dart.
Dependencies
| Package | Constraint | Resolved | Available |
|---|---|---|---|
| Direct dependencies | |||
| Dart SDK | >=2.1.0 <3.0.0 | ||
| flutter | 0.0.0 | ||
| Transitive dependencies | |||
| collection | 1.14.12 | 1.14.13 | |
| meta | 1.1.8 | 1.2.2 | |
| sky_engine | 0.0.99 | ||
| typed_data | 1.1.6 | 1.2.0 | |
| vector_math | 2.0.8 | 2.1.0-nullsafety | |
| Dev dependencies | |||
| flutter_test | |||