Bug on Android 4.4.2

[ghost]

While trying to run my flutter application on an Android 4.4.2 phone, I receive the following error:

E/FlutterSecureStoragePl(27505): Registration failed
E/FlutterSecureStoragePl(27505): java.lang.NullPointerException: chain == null
E/FlutterSecureStoragePl(27505): at java.security.KeyStore$PrivateKeyEntry.(KeyStore.java:1205)
E/FlutterSecureStoragePl(27505): at java.security.KeyStoreSpi.engineGetEntry(KeyStoreSpi.java:374)
E/FlutterSecureStoragePl(27505): at java.security.KeyStore.getEntry(KeyStore.java:644)
E/FlutterSecureStoragePl(27505): at com.it_nomads.fluttersecurestorage.ciphers.StorageCipher18Implementation.createKeysIfNeeded(StorageCipher18Implementation.java:78)
E/FlutterSecureStoragePl(27505): at com.it_nomads.fluttersecurestorage.ciphers.StorageCipher18Implementation.(StorageCipher18Implementation.java:29)
E/FlutterSecureStoragePl(27505): at com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin.(FlutterSecureStoragePlugin.java:44)
E/FlutterSecureStoragePl(27505): at com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin.registerWith(FlutterSecureStoragePlugin.java:32)
E/FlutterSecureStoragePl(27505): at io.flutter.plugins.GeneratedPluginRegistrant.registerWith(GeneratedPluginRegistrant.java:21)

How can I fix this? It works perfectly on other Android versions.

[mogol]

I can't reproduce this issue, but I found similar issue on StackOverflow

Could you try this fix - make KEY_ALIAS unique between apps ?

public class StorageCipher18Implementation implements StorageCipher {

  private final String KEY_ALIAS;
  private static final String KEYSTORE_PROVIDER_ANDROID = "AndroidKeyStore";
  private static final String TYPE_RSA = "RSA";


  public StorageCipher18Implementation(Context context) throws Exception {
    KEY_ALIAS = context.getPackageName() + ".FlutterSecureStoragePluginKey";
    createKeysIfNeeded(context);
  }

[ghost]

Thanks, this fixed a large part of it, at least for the release builds. It still occurs sometimes at debug mode, but this is fine for me.

[mogol]

Great, will release this fix

[mogol]

Published fix as 2.0.0.