How to extend subkey's expiry date?

[David Shaw]

On Thu, Mar 10, 2005 at 06:49:00PM +0000, Adam Funk wrote:
> > > $ gpg --edit-key e3c5ee5e
> > > ...
> > > pub  1024D/E3C5EE5E  created: 2002-02-19  expires: 2007-03-07  usage:
> > > CS trust: ultimate      validity: ultimate
> > > sub  2048g/66796190  created: 2002-02-19  expired: 2005-02-18  usage:
> > > E ...
> > >
> > > I've tried using "expire sub" and "expire 66796190" commands inside
> > > edit-key, but I can't change the expiry of the subkey.
> >
> > "key 1" then "expire" should work.
> 
> Is it worthwhile to replace and revoke subkeys periodically, or should I 
> just renew the expiry date?

It somewhat a matter of personal taste, but in general, it's a good
idea.  The ability to replace subkeys periodically is one of the
reasons for subkeys.

David