Restore not working

[andotp]

Restore not working

[tibu]

Just an FYI for anyone finding this issue from Google. The same is happening when you copy the app with some phone cloner from one phone to another. So after an app data removal you can start importing the config. (BTW maybe if would be worth to do some in-app detection for this.)

[flocke]

I'm gonna test it on Oreo soon and see if this always happens.
If not it could be related to #16.

[flocke]

It seems not to be thing with Oreo, I just tested it in a virtual machine and everything worked there.
@AnkS4 Could you try to manually add an entry, exit the app and open it again to see if the entry is still there?

[AnkS4]

Yes, it's disappearing

[flocke]

Seems like a duplicate of #16, could you upload me a logcat of manually adding the entry to make sure?

[AnkS4]

Did. https://pastebin.com/PCdjhWRh

[flocke]

Thank you, could you get me a full logcat as well? You seem to only upload the output matching "andotp", I'm interested if those lines appear as well:

W/System.err(22850): java.security.ProviderException: Failed to load generated key pair from keystore
W/System.err(22850): 	at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:518)
W/System.err(22850): 	at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)

[AnkS4]

https://pastebin.com/AsSqmK2r

[flocke]

It's not exactly the same error as #16, but it also seems to be a problem with the system keystore.

09-15 14:49:27.978 W/System.err(6957): java.lang.NullPointerException: Attempt to invoke interface method 'int android.security.IKeystoreService.exist(java.lang.String, int)' on a null object reference
09-15 14:49:27.978 W/System.err(6957): 	at android.security.KeyStore.contains(KeyStore.java:210)
09-15 14:49:27.978 W/System.err(6957): 	at android.security.keystore.AndroidKeyStoreSpi.engineContainsAlias(AndroidKeyStoreSpi.java:813)
09-15 14:49:27.978 W/System.err(6957): 	at java.security.KeyStore.containsAlias(KeyStore.java:1293)
09-15 14:49:27.978 W/System.err(6957): 	at org.shadowice.flocke.andotp.Utilities.SecretKeyWrapper.<init>(SecretKeyWrapper.java:64)
09-15 14:49:27.978 W/System.err(6957): 	at org.shadowice.flocke.andotp.Utilities.EncryptionHelper.loadOrGenerateKeys(EncryptionHelper.java:101)
09-15 14:49:27.978 W/System.err(6957): 	at org.shadowice.flocke.andotp.Utilities.DatabaseHelper.saveDatabase(DatabaseHelper.java:49)
09-15 14:49:27.978 W/System.err(6957): 	at org.shadowice.flocke.andotp.View.EntriesCardAdapter.saveEntries(EntriesCardAdapter.java:102)
09-15 14:49:27.978 W/System.err(6957): 	at org.shadowice.flocke.andotp.Activities.MainActivity$2.onClick(MainActivity.java:122)
09-15 14:49:27.978 W/System.err(6957): 	at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166)
09-15 14:49:27.978 W/System.err(6957): 	at android.os.Handler.dispatchMessage(Handler.java:105)
09-15 14:49:27.978 W/System.err(6957): 	at android.os.Looper.loop(Looper.java:164)
09-15 14:49:27.978 W/System.err(6957): 	at android.app.ActivityThread.main(ActivityThread.java:6541)
09-15 14:49:27.978 W/System.err(6957): 	at java.lang.reflect.Method.invoke(Native Method)
09-15 14:49:27.978 W/System.err(6957): 	at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
09-15 14:49:27.978 W/System.err(6957): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

I'm gonna look into it, but I assume it is like #16 and has to be fixed in the ROM.

[flocke]

@AnkS4 Just one followup question, did you try clearing the apps data before restoring?

[AnkS4]

ROM was buggy, it was rebooting when clearing app data. Back to Nougat & everything works fine.

[flocke]

OK, good it cleared up.
If you flash a new ROM and wipe the cache but leave the apps data then this will happen since the key in the Android KeyStore is missing but the encrypted data is still present.

[flocke]

@tibu Yes, this is due to the fact that the encryption keys for the database are tied to your phones hardware if you use the Android KeyStore encryption. There is a warning when you first setup the app and choose the KeyStore encryption that you can not use Titanium backup or similar apps.