So, exactly a month ago I’ve been playing around with Retroshare. I liked the idea that you use your PGP key as an identifier, but soon hit a brick wall: my key had sub-keys. Specifically, a sub-key for encryption. I posted the issue to Retroshare’s Twitter and they shortly after confirmed my issue. I had no idea how to create a plain, no-subkey PGP key. But it’s so simple!