Why can't I find a CERT.RSA file in my Android APK? I need to view the certificate of an Android APK, however when I look in the META-INF folder, there is no CERT.RSA file. I know that somehow the APK must be signed, because I was able to put it on an android emulator and run it, and Android won't install any unsigned apps, so it must be signed.
I just really need to actually see the signature but I cannot find it.

I am using Android Studio.

Any help would be greatly appreciated. Thanks!
Sometimes the "CERT.RSA" file is called something else. No idea why. I have often found the certificate file to be called something".RSA".

For example, when I decompile the "wp.wattpad" APK, it has its certificate saved as "BNDLTOOL.RSA"

My advice to you would be to find the file in the META-INF folder that has the extension ".RSA". It is probably the certificate.