Packaging for ios with windows

Hello, I am trying to test a project on iphone.I am using UE 4.16
I have been using IPP to generate key pair. I downloaded the certificate from apple site. But in Unreal editor> Project setting it shows “No valid certificate found”.
(I also read that the ios quick start doc on unreal site is outdated).
Anyone who can help me figure how to resolve this issue?

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