Revocation Certificate

[David Picon Alvarez]

> What is a revocation certificate for?

It is a secure way to say "I am no longer going to use this key, and if
someone does it's not me".

> What can I do with it?

You can securely "unbind" your key from your identity, for example if your
key gets compromised.

> Why is it important?

If your key is compromise and your attacker deletes it from your system (or
if you simply lose it) your key will continue to be bound to your identity
until and unless you revoke it.

--David.