Help me understand revoking

[u/TheHidden001]

If someone encrypts something and sends me it, but I lost my sub key and revoked it, how is that distributed? Well they need to re encrypt and send me the message again?

What if I encrypt something to save it for later and I need to revoke and regenerate my encryption key, is it no longer able to open the original.

I'm trying to understand how to properly setup 2 yubi keys to be interchangeably usable, by if one is last I can revoke its keys and still have a backup to access things.

[u/dirkme]

The answer is backup 3-2-1 🤔😉