trying to understand UID and subkeys

[David Shaw]

On Thu, Mar 12, 2009 at 08:08:35PM +1000, Felipe Alvarez wrote:
> On Fri, Mar 6, 2009 at 12:10 AM, David Shaw <dshaw at jabberwocky.com> wrote:
> >> What do the letters to the right of the words "usage" mean? (S,C,A,E) I
> >> can only guess |S|ign, |E|ncrypt, ....
> >
> > (S)ign: sign some data (like a file)
> > (C)ertify: sign a key (this is called certification)
> > (A)uthenticate: authenticate yourself to a computer (for example, logging
> > in)
> > (E)ncrypt: encrypt data
> >
> > David
> >
> >
> 
> "S" means this key permits the owner to sign things

Yes.

> "C" means that "I (felipe) have signed this key" ??

"C" means this key permits the owner to certify keys (either your own
or someone elses).

> "E" means owner can encrypt to himself ??

"E" means the key can be used to encrypt, period.  It doesn't matter
if that is you or someone else.

David