Android Question How to use signing certificate in B4A

[Francesco Maresca]

Hello, I published my app by activating the Google Play Signature. How can I convert and use the same key in B4A?
I want to be able to use the Google key and convert it to *.keystore

 

[Erel]

Tutorial about Google Play App signing: https://www.b4x.com/android/forum/threads/google-play-app-signing.91703/

Which type of file are you downloading from Google Play console?

 

[Francesco Maresca]

I downloaded the file "deployment_cert.der".

I am not with the instructions in the post. I can not find pepk.jar.

This is the screen I see:

 

[Erel]

This file will not help you. I don't think that it is possible and it is not something that you usually need. Why do you need it?

 

[Francesco Maresca]

Because if I debug my application after installing it from the play store, it tells me that the certificate is different and I necessarily lose all the data inside my internal.
So it's like unpreparing and reinstalling my application.
I need to keep the data whether I download from the play store, or whether I try my application directly from B4A.

 

[Erel]

Have you kept the "original key" that is created in step #1 https://www.b4x.com/android/forum/threads/google-play-app-signing.91703/ ?

 

[Francesco Maresca]

I can't follow the istruction in step #1 https://www.b4x.com/android/forum/threads/google-play-app-signing.91703/ because I don't have
the pepk.jar tool and I can't download it from the Google Play Console developper.

 

[Erel]

How did you enable Google App Signing? This key is required.

 

[Francesco Maresca]

I didn't have to import any keys but it was all handled by the play store developer console.

My current situation is this:

By going to the app signature I can only download:

- Certificate APP generate by google: deployment_cert.der
- Certificate APP generate from B4A: upload_cert.der

 

[Erel]

I see. You have opted in to Google App Signing before the app was released for the first time, right?
In that case you cannot get the key that Google is using to sign your app with.

 

[Francesco Maresca]

Yes, it is so. Thank you for the support, we can consider the post closed.