[Android] setGenericPassword not working on Samsung devices: "Attempt to invoke virtual method 'getPublicKey()' on a null object reference"

[SocialBrothersDEV]

First of all, thanks for this library. It has helped me a lot already.

However, i am running into an issue on Samsung devices when calling setGenericPassword().

I am currently invoking the method like this:

Keychain.setGenericPassword('general', value, {
    accessible: Keychain.ACCESSIBLE.WHEN_UNLOCKED,
    accessControl:
      hasBiometrics && isBiometricsProtected
        ? Keychain.ACCESS_CONTROL.BIOMETRY_CURRENT_SET_OR_DEVICE_PASSCODE
        : undefined,
    service: username ? `${service}_${username}` : service,
  });

However when i do this i am getting this error on Android:

Error: Unknown error: Attempt to invoke virtual method 'java.security.PublicKey java.security.cert.Certificate.getPublicKey()' on a null object reference
    at Object.promiseMethodWrapper [as setGenericPasswordForOptions] (NativeModules.js:103)
    at Object.setGenericPassword (index.js:179)
    at setKeychain$ (Storage.ts:37)
    at tryCatch (runtime.js:63)
    at Generator.invoke [as _invoke] (runtime.js:293)
    at Generator.next (runtime.js:118)
    at tryCatch (runtime.js:63)
    at invoke (runtime.js:154)
    at runtime.js:164
    at tryCallOne (core.js:37)

Please let me know how i can fix this, my app is going to production soon.

[AlexD10S]

Hi,
I am getting this error too, in my case in a Xiaomi.
How did you fix it?

[oferRounds]

Seeing it also

[oferRounds]

Hi @AlexD10S, did you find any solution to this?

[SocialBrothersDEV]

I have eventually removed this library from my project and moved to Expo's SecureStore and LocalAuthentication libraries. I would love to come back to this library once this is fixed tho.

[oferRounds]

Thanks @SocialBrothersDEV!
(I’m not using expo, so that won’t work for me)

[Perolini]

I have the same problem on Huawei

[nadishan]

I have the same problem with Nokia (API Level 29)

[fr33z3]

Any updates for this problem? Did anyone solved it?

[ObidosDev]

Same here. Samsung... Android 10, One UI 2.0

[weraaaaz]

Same for Samsung Galaxy S20 (Android 11), Samsung Galaxy S10 (Android 11), Samsung Galaxy A71 (Android 11), Samsung Galaxy S7 edge (Android 8), Nokia 7.2 (Android 10)

[Juan-Castelli]

I'm following this issue as it appears to be critical.

It is NOT happening on real device Samsung A50 with Android 10 OneUI2.5.

At least when using setGenericPassword/getGenericPassword.

Does it happen when you call it normally with no options at all? Just the service option, username and password?

[aleksterm]

Hey guys!

Got similar problem. In my app's flow, I was initially using setGenericPassword() without any accessControl option. Then I prompt user to enable biometric auth and in case he agreed I invoked setGenericPassword() again with the same credentials plus accessControl option BIOMETRY_ANY. And it failed with the error Attempt to invoke virtual method...

Through trial and errors I found out, that in that case I had to previously use resetGenericPassword() before storing the same credentials with setGenericPassword().

If this is your case, you may give this workaround a try.

[elshan-eth]

Hi

I had the problem with setInternetCredentials. But I changed setInternetCredentials to setGenericPassword and the problem disappeared.

[0xGaryWu]

Any updates?????

it works for several days, but fail now on my xiaomi device(android11).

[LouisWT]

Any update? I followed @aleksterm advice, but still, get this error log sometimes.

[MAKARD]

well, 2023
This issue is still with us
Version 8.1.1

[ErickMaeda]

Hello, this issue started happening with me when using the Keychain.setGenericPassword with Biometrics

I have this set of devices that had this issue:

Does anyone has an update on this issue?

[Elf2707]

Same issue Android. Nothing helped

[arlovip]

The same issue on Andorid.

Error: Unknown error: Attempt to invoke virtual method 'java.security.PublicKey 
java.security.cert.Certificate.getPublicKey()' on a null object reference
Error: Unknown error: Attempt to invoke virtual method 'java.security.PublicKey 
java.security.cert.Certificate.getPublicKey()' on a null object reference

[Dr0pG]

Any updates on this, guys?

[baontsparkminds]

Hi guys, I solved this issue by calling set/get/reset GenericPassword with the same service and making sure to reset before setting a new GenericPassword.