Key syntax

Tue Mar 27 00:38:01 2001

I have a question about the items in the first column when I list my keys,
secret or public. I understand the "sec" is "secret" and "pub" is "public" key.
What are the "ssb" and "sub" part of the key?

-----------------------------------------------------------------
(0)subba@myhost:~ => gpg --list-secret-keys

/home/subba/.gnupg/secring.gpg
-------------------------------
sec  < DELETED TEXT >
ssb  < DELETED TEXT >

(0)subba@myhost:~ => gpg --list-keys
/home/subba/.gnupg/pubring.gpg
-------------------------------
pub  < DELETED TEXT >
sub  < DELETED TEXT >

(0)subba@myhost:~ => 
-----------------------------------------------------------------

TIA.
-- 

Subba Rao
subba9@home.com
http://members.home.net/subba9/