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List members are increasingly using the DCGLUG mailing list with GnuPG/PGP digital signatures and key signing events have been incorporated into recent meetings. The DCGLUG website currently uses GnuPG encryption for emails containing your Members Area password and emails sent directly to you from the Members Area.
The website scripts use public keyservers to match your email address rather than your name. Your subscribed email address is / will be part of your identity on the DCGLUG list and it is helpful if the key and the email match up. email addresses are also unique and so there are less matching keys to process.
Most keys already contain a suitable UID and it makes it easier for other members to maintain their keyrings when keys can be easily matched to recognised email addresses. Also, the email address is required for membership and keys can be retrieved from a keyserver using an email address as easily as using a keyid. If this causes problems for you, let me know and I can change it.
Once you have a mailing list subscription and a members area username/password, you can change your email address from the members area. If you choose to have a subscribed email address that is different to your contact address in the members area, you should be careful how you manage your GnuPG key for the website. It is important that other members have some way of identifying you as the same person in the members area as on the list. You can use a photograph in the members register but you should also sign your list messages with the same keyid as you use from the members area. You will only be able to select a key for the members area that already has your contact email address as a UID, even if that key does not contain a UID containing your subscribed email address, otherwise the key may be deleted from the D&C LUG keyring at the next update.
If the copy of your public key retrieved from the public keyserver does not contain the email address entered in the form, usually as a part of a User Id (UID), the website will be unable to use GnuPG encryption for you.
The email addresses listed in your key can be displayed
using:
(replace #KEYID# with your 8 character key id, e.g.
28BCB3E3.
$ gpg --list-key #KEYID#
If you would like to use GnuPG encryption from the website, you
can add a suitable UID to your key using the gpg command:
$ gpg --edit-key #KEYID#
Command> adduid
GnuPG will prompt you for a real name to use (e.g. you could use an abbreviated
name or perhaps use an official title etc.), a comment (which should be distinct
from other comments on the same key) and an email address - enter the email
address that you currently use to post to the DCGLUG mailing list. Save the
changes to your key with Command> save.
Make sure you update the copy of your public key on the
keyservers every time you make changes to the key, using the command:
$ gpg --keyserver subkeys.pgp.net --send-keys #KEYID#
Once your key is uploaded, you can
If you use a different keyserver, please remember that it may take a little time before the keyservers synchronise and the update becomes available to the DCGLUG scripts.
The Members Register also allows you to view the current UID's on your key as stored in the DCGLUG keyring and update it to reflect new signatures, new UID's or to reflect a revocation certificate.
To receive updated copies of all current D&C LUG members, including your own, download the keyring.
If you have revoked your key, make sure that you send both your revoked key and any new replacement key to a public keyserver. Then you can update your key and the DCGLUG keyring will search for a new key to replace the revoked key.
Yes. Members can add or update their public key to
the DCGLUG keyring using the
Members Register.
KeyID's in use by DCGLUG members are regularly refreshed to keep up with
new signatures and new UID's or revoked keys. You can download
the D&C LUG keyring as a text file. Save the file to your local filesystem,
perhaps call it keyring.txt, and then import into GnuPG using the command:
gpg --import keyring.txt
The D&C LUG keyring has been converted into a
graphic to help you see some of the
relationships between keys in the ring. (User ID not found appears because the
ring used to create the graphic is limited to D&C LUG members only, to keep
the image size manageable.)
