Cannot generate .pem from new .jks file
I want to upload a new app to Huawei App Gallery. To do so, you have to upload a .pem file. According to documentation from Android and Huawei, this is done like so:
keytool -export -rfc -keystore upload-keystore.jks -alias upload -file upload_certificate.pem
However, when I try and doo this on my brand new .jks file generated using Android Studio, I get: "keytool error: java.io.IOException: Invalid keystore format"
It works fine on other, older, .jks files though.
I have no idea what to do. The best I can find is that 'Android Studio now runs on JDK 11'; but I don't know why that would make the jks unreadable for the keytool.
I've tried:
- Updating Java on my Mac (Java 8, Update 291)
- Updating to the latest android studio (Android Studio Chipmunk | 2021.2.1 Patch 1)
UPDATE:
As recommended by Robert, I downloaded keystore-explorer and saw that the '.jks' is actually a .p12 file. 
Will investigate and update as soon as I figure out how to get the .pem out of it.
If you can use KeysTore Explorer it does all the tricky staff for you.
It's free and helps a lot
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