New experimental Big Eight Usenet signing key

I have finally done the work to create a new modern GnuPG signing key for control messages for the Big Eight hierarchies and wired it into the machinery that sends those control messages. I have sent one experimental checkgroups message signed with that key:

    <cmsg-20210314174844$1888@isc.org>

To test the automation, tomorrow the normal monthly checkgroups will be issued, which should result in two control messages, one signed with the new key and one with the old key.

I've used the same key ID for the new key as the old key so that updating will be as simple as importing the new key.

This key is currently EXPERIMENTAL and I reserve the right to reissue the key if anyone uncovers any problems. If you are in a position to do so, please try verifying the control messages with the new key and verify that the work properly. I plan on making this new key official some time next month and will post a more general announcement to news.announce.newgroups and news.admin.announce at that time.

The new key, signed with my personal key and the old hierarchy control signing key, is available on my web site. (The Big Eight hierarchies need a more official information page for news administrators, I know, but one thing at a time.)