store_critical_data

Description:

store critical data

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");


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Configure Android version #
In [project]/android/app/build.gradle set minSdkVersion to >= 18.
android {
...

defaultConfig {
...
minSdkVersion 18
...
}

}
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Note : By default Android backups data on Google Drive. It can cause exception java.security.InvalidKeyException:Failed to unwrap key.