So I created a CertificateSigningRequest.certSigningRequest and had it signed in Apple Developer portal, under Certificates, Identifiers & Profiles -> Identifiers.

And after I downloaded the result I have a myCert.cer file, now for my next step I need to somehow convert this to a .p12 file. But openssh won't allow me to do this without the ".key" file. Apple Developer portal doesn't share with me. How can I output .p12 from this step?

CodePudding user response：

After downloading myCert.cer file installs this in keychain access by a double tab. Then from keychain access, you can export your certificate in .p12 format.

CodePudding user response：

After installation myCert.cer on your computer you need to find this certificate in Keychain Access -> click on certificate(right button on your mouse or double finger on your touchpad) -> click "Export ..." -> Save .p12 file.