flutter_secure_storage: Sporadic finalizer exceptions for underlying KeyStore on Android

Using Version 2.0.0 [✓] Flutter (Channel dev, v0.2.4, on Mac OS X 10.13.3 17D102, locale en-US) [✓] Android toolchain - develop for Android devices (Android SDK 27.0.3) [✓] iOS toolchain - develop for iOS devices (Xcode 9.2) [✓] Android Studio (version 3.0) [✓] IntelliJ IDEA Ultimate Edition (version 2017.3) [✓] Connected devices (3 available) Using Android Emulators of various versions (26+), and a physical Pixel (27)

Every now and then, but consistently once it happens once, flutter_secure_storage throws an exception when reading/writing a key.

Flutter throws the error: E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): Failed to handle method call E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): java.lang.IllegalArgumentException: Unsupported value: javax.crypto.IllegalBlockSizeException E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at io.flutter.plugin.common.StandardMessageCodec.writeValue(StandardMessageCodec.java:293) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at io.flutter.plugin.common.StandardMethodCodec.encodeErrorEnvelope(StandardMethodCodec.java:70) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler$1.error(MethodChannel.java:199) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin.onMethodCall(FlutterSecureStoragePlugin.java:77) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:191) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at io.flutter.view.FlutterNativeView.handlePlatformMessage(FlutterNativeView.java:136) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at android.os.MessageQueue.nativePollOnce(Native Method) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at android.os.MessageQueue.next(MessageQueue.java:325) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at android.os.Looper.loop(Looper.java:142) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at android.app.ActivityThread.main(ActivityThread.java:6494) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at java.lang.reflect.Method.invoke(Native Method) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage( 8518): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

However, this is caused by a system exception:

E/System ( 8518): java.lang.IllegalStateException: Binder has been finalized! E/System ( 8518): at android.os.BinderProxy.transactNative(Native Method) E/System ( 8518): at android.os.BinderProxy.transact(Binder.java:764) E/System ( 8518): at android.security.IKeystoreService$Stub$Proxy.abort(IKeystoreService.java:1373) E/System ( 8518): at android.security.KeyStore.abort(KeyStore.java:531) E/System ( 8518): at android.security.keystore.AndroidKeyStoreCipherSpiBase.finalize(AndroidKeyStoreCipherSpiBase.java:744) E/System ( 8518): at android.security.keystore.AndroidKeyStoreRSACipherSpi$PKCS1Padding.finalize(Unknown Source:0) E/System ( 8518): at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:250) E/System ( 8518): at java.lang.Daemons$FinalizerDaemon.runInternal(Daemons.java:237) E/System ( 8518): at java.lang.Daemons$Daemon.run(Daemons.java:103) E/System ( 8518): at java.lang.Thread.run(Thread.java:764)

The only ways I’ve resolved the issue is to do a hard restore of the device/emulator, as well as a full clean and rebuild of the project. It does not seem to happen on formal builds, just after a lot of debugging sessions, but nothing specific.

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 3
Comments: 23 (5 by maintainers)

Most upvoted comments

Finding a potentially similar issue:

Debug Build: qemu-system-i386: Oreo

After a restart of the emulator, I receive this in the log output:

E/FlutterSecureStoragePl( 8971): Registration failed
E/FlutterSecureStoragePl( 8971): java.security.UnrecoverableKeyException: Failed to obtain information about private key
E/FlutterSecureStoragePl( 8971): 	at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:223)
E/FlutterSecureStoragePl( 8971): 	at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
E/FlutterSecureStoragePl( 8971): 	at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePrivateKeyFromKeystore(AndroidKeyStoreProvider.java:269)
E/FlutterSecureStoragePl( 8971): 	at android.security.keystore.AndroidKeyStoreSpi.engineGetKey(AndroidKeyStoreSpi.java:94)
E/FlutterSecureStoragePl( 8971): 	at java.security.KeyStoreSpi.engineGetEntry(KeyStoreSpi.java:474)
E/FlutterSecureStoragePl( 8971): 	at java.security.KeyStore.getEntry(KeyStore.java:1560)
E/FlutterSecureStoragePl( 8971): 	at com.it_nomads.fluttersecurestorage.ciphers.RSACipher18Implementation.createRSAKeysIfNeeded(RSACipher18Implementation.java:93)
E/FlutterSecureStoragePl( 8971): 	at com.it_nomads.fluttersecurestorage.ciphers.RSACipher18Implementation.<init>(RSACipher18Implementation.java:30)
E/FlutterSecureStoragePl( 8971): 	at com.it_nomads.fluttersecurestorage.ciphers.StorageCipher18Implementation.<init>(StorageCipher18Implementation.java:31)
E/FlutterSecureStoragePl( 8971): 	at com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin.<init>(FlutterSecureStoragePlugin.java:42)
E/FlutterSecureStoragePl( 8971): 	at com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin.registerWith(FlutterSecureStoragePlugin.java:30)
E/FlutterSecureStoragePl( 8971): 	at io.flutter.plugins.GeneratedPluginRegistrant.registerWith(GeneratedPluginRegistrant.java:24)

And then the error returned from the plugin is:

"MissingPluginException(No implementation found for method read on channel plugins.it_nomads.com/flutter_secure_storage)"

Offending Call:

Future<dynamic> _getKeyFromStorage(String account) {
  final storage = new FlutterSecureStorage();
  return storage.read(key: '$account-key');
}

Problem resolves by uninstalling app and reinstalling, which is not optimal…

cchatfield on Apr 19, 2018

Happened to me too. Reproduced both on emulator (Nexus 5) and real device (Galaxy Note 8)

2020-04-17 10:50:36.071 19720-19720/? E/MethodChannel#plugins.it_nomads.com/flutter_secure_storage: Failed to handle method call java.lang.IllegalArgumentException: Unsupported value: javax.crypto.BadPaddingException: error:1e000065:Cipher functions:OPENSSL_internal:BAD_DECRYPT at io.flutter.plugin.common.StandardMessageCodec.writeValue(Unknown Source:392) at io.flutter.plugin.common.StandardMethodCodec.encodeErrorEnvelope(Unknown Source:21) at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler$1.error(Unknown Source:10) at e.c.a.a.onMethodCall(Unknown Source:133) at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(Unknown Source:17) at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(Unknown Source:57) at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(Unknown Source:4) at android.os.MessageQueue.nativePollOnce(Native Method) at android.os.MessageQueue.next(MessageQueue.java:326) at android.os.Looper.loop(Looper.java:181) at android.app.ActivityThread.main(ActivityThread.java:7073) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)

sk3llo on Apr 17, 2020

Recently received same issue on an emulator like reported by @cchatfield Is it really don’t reproduce on real devices?

w3ggy on Aug 6, 2019

I received below exception in Nexus 5x

Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'void io.flutter.plugin.common.MethodChannel.setMethodCallHandler(io.flutter.plugin.common.MethodChannel$MethodCallHandler)' on a null object reference at com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin.onDetachedFromEngine(FlutterSecureStoragePlugin.java:62) at io.flutter.embedding.engine.FlutterEnginePluginRegistry.remove(FlutterEnginePluginRegistry.java:252) at io.flutter.embedding.engine.FlutterEnginePluginRegistry.remove(FlutterEnginePluginRegistry.java:260) at io.flutter.embedding.engine.FlutterEnginePluginRegistry.removeAll(FlutterEnginePluginRegistry.java:268) at io.flutter.embedding.engine.FlutterEnginePluginRegistry.destroy(FlutterEnginePluginRegistry.java:112) at io.flutter.embedding.engine.FlutterEngine.destroy(FlutterEngine.java:292) at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onDetach(FlutterActivityAndFragmentDelegate.java:500) at io.flutter.embedding.android.FlutterActivity.onDestroy(FlutterActivity.java:576) at android.app.Activity.performDestroy(Activity.java:6422) at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1142) at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3822) at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3853) at android.app.ActivityThread.-wrap5(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1398) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5421) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

munnadroid on Apr 27, 2020

Happen to me too in Nexus 5X API 26 Emulator

rogerfsgDC on Jun 11, 2019