I was successfully able to create a PGP Key using Seahorse in Ubuntu's Passwords and Keys (13.04). I was also able to create a revocation certificate, if needed in the future, using the terminal in Ubuntu.
My problem concerns doing this on a Windows machine (and Mac). I downloaded Gpg4win and used Kleopatra to create a PGP Key. I am however unable to find a way to create a revocation certificate for the key I generated.
I would appreciate some direction with this issue.
Slightly modified answer by Jens Erat on Ask Ubuntu, plus information from comments above.
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If you're fine with using the command line, this is easily done using gpg --gen-revoke using Windows Command Prompt.
On Windows, if you do not change anything else, the revocation certificate is stored in revoke.asc in your home directory (C:\Users\Name), and you should replace mykey by your key id.
gpg --output revoke.asc --gen-revoke mykey
Remember to store it in a safe place, for example by printing it to a QR code or something similar.
Just in case if you're wondering on how to get the keyID of a key in the Command Prompt, (I ran into this :), It's the last 8 characters of your public key, which you could easily get printed by using the following commands.
gpg --fingerprint
OR
gpg --list-keys
In Kleopatra, right-click on your key and click on Details. There will be a button called Generate revocation certificate.
Under current versions of Kleopatra, you can simply:
Select the key, then
Open the "View" menu, and
Select "Details":
Use the "Generate revocation certificate" button:
Save the file:
