What's the best practice for eliminating keys you don't want?
So I figured out that I have an extra set of keys. What I want to know is if I should expire the ones I don't want or revoke them or something else? I've used them to sign emails but I don't think I've ever encrypted anything with them. I've already set an expiry date of tomorrow but should I bother keeping them or just revoke and then delete? I've already securely copied the correct keys from another machine. The expired keys were uploaded to the key server but IDK if that means the old ones were overwritten or if now there are two sets of keys up on the key server, one with an expiry set and one without?