I plan on doing a mass migration of all my local files to various cloud services since space is pretty cheap these days.
I figure I should probably encrypt my data before I upload it, which is better than just sending out there awaiting some data hack etc. I've installed gpgtools on my Mac, and created a key pair, and now I can encrypt my files fairly easily.
However, when creating the key, there is an option to expire it. I've done various googling about what this means, and it seems like it's a way to automatically revoke a public key for others if they were using it to encrypt messages. Is this correct? Also, does this even matter in my example as I'm only using my keys to encrypt files to be stored in the cloud? I didn't set an expiry at all, but is there a reason why I should?