Changing comment in userID

[NIIBE Yutaka]

On 12/15/2016 08:03 PM, unknown wrote:
> i've made a keypair with a comment in the userID. Is it possible to
> delete this part of the key or do I have completely delete the key and
> make a new one?
> I also uploaded it to the sks keyserver. What effect will it have on the
> keyserver?

Please note that modifying user ID (even if it's a comment in user ID)
makes different user ID.  And when people certify your key, signature
is about user ID.

You don't need to create new key.  You can add new user ID to existing
key by: gpg --edit-key YOUR-KEY and "adduid" sub command.  You can
also revoke an old user ID by "revuid" sub command, if you want.
Then, you can upload updated key to keyserver.  There is also "deluid"
sub command but it only affects key on your PC, since keyservers never
support deletion of record.

You need to get your user ID certified again.

Thus, it would be simpler starting with new key with new user ID.
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