How do I find out which keystore was used to sign an app?

Question

I have an app which is signed and several keystore files. I\'d like to update the app, so I need to find out which one of keys was used.

How can I match which keysto

Answer 1

You can do this with the apksigner tool that is part of the Android SDK:

apksigner verify --print-certs my_app.apk

You can find apksigner inside the build-tools directory. For example: ~/Library/Android/sdk/build-tools/29.0.1/apksigner