Local-signing without (offline) private master key

[Nathan Musoke]

> Now I want to import someone else's key to verify a signature. In order
> to verify that signature, I need to at least locally sign the owner's
> key, AFAIK. However, I would need my offline master key (read: really
> inconvenient) to issue a signature.

I'm no expert, but as far as I know you don't need to locally sign a key to
verify a signature. My understanding is that setting the local trust should
be sufficient to make GnuPG happy. See
https://www.gnupg.org/gph/en/manual/x334.html

(Someone please correct me if I'm wrong...)