I'm new to the Apple ecosystem and I'm using Ubuntu as my primary OS on desktop. I have my computer set up as ssh server, and I have generated a public/private keypair on it which I want to transfer to my iPhone. I have just picked a top App Store hit for the ssh client (Termius), but I cannot import my key into it, except by iTunes.
For obvious reasons, I don't want my private key touching the Internet (and besides, there's no iTunes for Linux), let alone upload it on any cloud service, and would rather copy the keys through my USB cable. However, copying it to the app's data using AFC went unnoticed, and I have no idea if putting it anywhere on the filesystem would do any good (mounting using
ifuse). Is there an app or a technique that supports what I'm trying to do?